[User] Write unit tests in Go for merge intervals. Difficulty: medium. Context: for an interview prep tool. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // merge intervals in Go
    return input
}


[User] Write a Bash function for pagination helper. Difficulty: easy. Context: for an internal library. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in Python for CSV parsing. Difficulty: medium. Context: for an internal library. Include input validation.

[Assistant]
def solve(data):
    """CSV parsing in Python."""
    if data is None:
        return None
    return data


[User] Write a TypeScript function for email validation. Difficulty: hard. Context: for a CLI utility. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // email validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor Python logic for two-sum to improve readability and performance. Difficulty: medium. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
def solve(data):
    """two-sum in Python."""
    if data is None:
        return None
    return data


[User] Write a Go function for merge intervals. Difficulty: easy. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // merge intervals in Go
    return input
}


[User] Refactor Python logic for LRU cache to improve readability and performance. Difficulty: medium. Context: for a coding challenge platform. Avoid global mutable state.

[Assistant]
def solve(data):
    """LRU cache in Python."""
    if data is None:
        return None
    return data


[User] Fix this TypeScript code for webhook signature check: boundary bug and null handling. Difficulty: medium. Context: for a coding challenge platform. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // webhook signature check in TypeScript
  if (input == null) return null;
  return input;
}


[User] Fix this TypeScript code for pagination helper: boundary bug and null handling. Difficulty: easy. Context: for a coding challenge platform. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // pagination helper in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a Rust function for pagination helper. Difficulty: hard. Context: for an internal library. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // pagination helper in Rust
    input.to_string()
}


[User] Refactor Rust logic for retry with backoff to improve readability and performance. Difficulty: medium. Context: for a backend service. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // retry with backoff in Rust
    input.to_string()
}


[User] Write a Python function for pagination helper. Difficulty: easy. Context: for a coding challenge platform. Include input validation.

[Assistant]
def solve(data):
    """pagination helper in Python."""
    if data is None:
        return None
    return data


[User] Fix this Rust code for merge intervals: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // merge intervals in Rust
    input.to_string()
}


[User] Fix this Bash code for LRU cache: boundary bug and null handling. Difficulty: easy. Context: for a coding challenge platform. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a Rust function for JSON schema validation. Difficulty: medium. Context: for a coding challenge platform. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // JSON schema validation in Rust
    input.to_string()
}


[User] Implement retry with backoff in Bash with edge-case handling. Difficulty: hard. Context: for a coding challenge platform. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in Python for JWT verification. Difficulty: hard. Context: for a backend service. Avoid global mutable state.

[Assistant]
def solve(data):
    """JWT verification in Python."""
    if data is None:
        return None
    return data


[User] Write unit tests in Bash for merge intervals. Difficulty: easy. Context: for an interview prep tool. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Implement pagination helper in Python with edge-case handling. Difficulty: medium. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
def solve(data):
    """pagination helper in Python."""
    if data is None:
        return None
    return data


[User] Fix this Python code for JSON schema validation: boundary bug and null handling. Difficulty: medium. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
def solve(data):
    """JSON schema validation in Python."""
    if data is None:
        return None
    return data


[User] Refactor Rust logic for webhook signature check to improve readability and performance. Difficulty: hard. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // webhook signature check in Rust
    input.to_string()
}


[User] Refactor SQL logic for JWT verification to improve readability and performance. Difficulty: hard. Context: for an internal library. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Refactor Rust logic for JWT verification to improve readability and performance. Difficulty: medium. Context: for a CLI utility. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // JWT verification in Rust
    input.to_string()
}


[User] Refactor C++ logic for binary search to improve readability and performance. Difficulty: medium. Context: for an interview prep tool. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // binary search in C++
    return input;
}


[User] Implement merge intervals in Rust with edge-case handling. Difficulty: hard. Context: for an internal library. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // merge intervals in Rust
    input.to_string()
}


[User] Fix this JavaScript code for deduplicate preserving order: boundary bug and null handling. Difficulty: medium. Context: for an interview prep tool. Include input validation.

[Assistant]
function solve(input) {
  // deduplicate preserving order in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a C++ function for two-sum. Difficulty: medium. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // two-sum in C++
    return input;
}


[User] Write a C++ function for two-sum. Difficulty: hard. Context: for a coding challenge platform. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // two-sum in C++
    return input;
}


[User] Fix this Rust code for email validation: boundary bug and null handling. Difficulty: easy. Context: for a CLI utility. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // email validation in Rust
    input.to_string()
}


[User] Implement two-sum in SQL with edge-case handling. Difficulty: hard. Context: for an interview prep tool. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write a Bash function for two-sum. Difficulty: hard. Context: for a CLI utility. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a Rust function for two-sum. Difficulty: hard. Context: for a CLI utility. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // two-sum in Rust
    input.to_string()
}


[User] Write unit tests in Go for JSON schema validation. Difficulty: medium. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Write unit tests in TypeScript for JSON schema validation. Difficulty: hard. Context: for a backend service. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // JSON schema validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Fix this C++ code for deduplicate preserving order: boundary bug and null handling. Difficulty: medium. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // deduplicate preserving order in C++
    return input;
}


[User] Write unit tests in SQL for retry with backoff. Difficulty: medium. Context: for a backend service. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write unit tests in C++ for CSV parsing. Difficulty: easy. Context: for a backend service. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // CSV parsing in C++
    return input;
}


[User] Implement JWT verification in SQL with edge-case handling. Difficulty: hard. Context: for a CLI utility. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Implement rate limiter in JavaScript with edge-case handling. Difficulty: medium. Context: for an interview prep tool. Include input validation.

[Assistant]
function solve(input) {
  // rate limiter in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Bash for binary search. Difficulty: medium. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Implement top-k frequent elements in Go with edge-case handling. Difficulty: hard. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // top-k frequent elements in Go
    return input
}


[User] Write unit tests in Bash for LRU cache. Difficulty: easy. Context: for a CLI utility. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in Go for JSON schema validation. Difficulty: medium. Context: for a coding challenge platform. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Write unit tests in Rust for JSON schema validation. Difficulty: easy. Context: for a backend service. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // JSON schema validation in Rust
    input.to_string()
}


[User] Refactor JavaScript logic for two-sum to improve readability and performance. Difficulty: medium. Context: for a coding challenge platform. Include input validation.

[Assistant]
function solve(input) {
  // two-sum in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a Go function for deduplicate preserving order. Difficulty: hard. Context: for a CLI utility. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // deduplicate preserving order in Go
    return input
}


[User] Fix this Bash code for top-k frequent elements: boundary bug and null handling. Difficulty: medium. Context: for an interview prep tool. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Refactor C++ logic for retry with backoff to improve readability and performance. Difficulty: medium. Context: for a backend service. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // retry with backoff in C++
    return input;
}


[User] Write a Python function for rate limiter. Difficulty: hard. Context: for a coding challenge platform. Avoid global mutable state.

[Assistant]
def solve(data):
    """rate limiter in Python."""
    if data is None:
        return None
    return data


[User] Write a Python function for merge intervals. Difficulty: hard. Context: for an interview prep tool. Include input validation.

[Assistant]
def solve(data):
    """merge intervals in Python."""
    if data is None:
        return None
    return data


[User] Write unit tests in C++ for two-sum. Difficulty: medium. Context: for a backend service. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // two-sum in C++
    return input;
}


[User] Write a C++ function for two-sum. Difficulty: easy. Context: for an interview prep tool. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // two-sum in C++
    return input;
}


[User] Refactor TypeScript logic for CSV parsing to improve readability and performance. Difficulty: easy. Context: for an internal library. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // CSV parsing in TypeScript
  if (input == null) return null;
  return input;
}


[User] Fix this TypeScript code for rate limiter: boundary bug and null handling. Difficulty: medium. Context: for an interview prep tool. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // rate limiter in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor TypeScript logic for deduplicate preserving order to improve readability and performance. Difficulty: easy. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // deduplicate preserving order in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a TypeScript function for two-sum. Difficulty: medium. Context: for a backend service. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // two-sum in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor Go logic for top-k frequent elements to improve readability and performance. Difficulty: hard. Context: for an interview prep tool. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // top-k frequent elements in Go
    return input
}


[User] Refactor TypeScript logic for retry with backoff to improve readability and performance. Difficulty: easy. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // retry with backoff in TypeScript
  if (input == null) return null;
  return input;
}


[User] Fix this SQL code for RBAC permission check: boundary bug and null handling. Difficulty: hard. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write unit tests in SQL for deduplicate preserving order. Difficulty: easy. Context: for an interview prep tool. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Implement JWT verification in TypeScript with edge-case handling. Difficulty: medium. Context: for a CLI utility. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // JWT verification in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor Bash logic for merge intervals to improve readability and performance. Difficulty: hard. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Refactor Python logic for merge intervals to improve readability and performance. Difficulty: easy. Context: for a coding challenge platform. Include input validation.

[Assistant]
def solve(data):
    """merge intervals in Python."""
    if data is None:
        return None
    return data


[User] Write unit tests in C++ for two-sum. Difficulty: easy. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // two-sum in C++
    return input;
}


[User] Write unit tests in Rust for pagination helper. Difficulty: hard. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // pagination helper in Rust
    input.to_string()
}


[User] Fix this Python code for binary search: boundary bug and null handling. Difficulty: easy. Context: for an internal library. Include input validation.

[Assistant]
def binary_search(arr, target):
    lo, hi = 0, len(arr) - 1
    while lo <= hi:
        mid = (lo + hi) // 2
        if arr[mid] == target:
            return mid
        if arr[mid] < target:
            lo = mid + 1
        else:
            hi = mid - 1
    return -1


[User] Refactor Rust logic for two-sum to improve readability and performance. Difficulty: hard. Context: for a CLI utility. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // two-sum in Rust
    input.to_string()
}


[User] Write unit tests in SQL for CSV parsing. Difficulty: easy. Context: for a coding challenge platform. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Refactor C++ logic for JWT verification to improve readability and performance. Difficulty: medium. Context: for a coding challenge platform. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // JWT verification in C++
    return input;
}


[User] Refactor C++ logic for webhook signature check to improve readability and performance. Difficulty: easy. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // webhook signature check in C++
    return input;
}


[User] Fix this Go code for top-k frequent elements: boundary bug and null handling. Difficulty: easy. Context: for a coding challenge platform. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // top-k frequent elements in Go
    return input
}


[User] Write unit tests in Rust for retry with backoff. Difficulty: medium. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // retry with backoff in Rust
    input.to_string()
}


[User] Fix this TypeScript code for retry with backoff: boundary bug and null handling. Difficulty: medium. Context: for a CLI utility. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // retry with backoff in TypeScript
  if (input == null) return null;
  return input;
}


[User] Fix this Go code for deduplicate preserving order: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // deduplicate preserving order in Go
    return input
}


[User] Fix this Rust code for pagination helper: boundary bug and null handling. Difficulty: medium. Context: for an interview prep tool. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // pagination helper in Rust
    input.to_string()
}


[User] Fix this Rust code for email validation: boundary bug and null handling. Difficulty: hard. Context: for a backend service. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // email validation in Rust
    input.to_string()
}


[User] Implement two-sum in Rust with edge-case handling. Difficulty: medium. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // two-sum in Rust
    input.to_string()
}


[User] Fix this JavaScript code for CSV parsing: boundary bug and null handling. Difficulty: medium. Context: for an interview prep tool. Include input validation.

[Assistant]
function solve(input) {
  // CSV parsing in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Python for retry with backoff. Difficulty: easy. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
def solve(data):
    """retry with backoff in Python."""
    if data is None:
        return None
    return data


[User] Fix this Bash code for sliding window maximum: boundary bug and null handling. Difficulty: hard. Context: for a backend service. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Fix this Rust code for deduplicate preserving order: boundary bug and null handling. Difficulty: hard. Context: for a backend service. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // deduplicate preserving order in Rust
    input.to_string()
}


[User] Write a Go function for JSON schema validation. Difficulty: easy. Context: for a CLI utility. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Write unit tests in Go for email validation. Difficulty: easy. Context: for a backend service. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // email validation in Go
    return input
}


[User] Write unit tests in Rust for sliding window maximum. Difficulty: hard. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // sliding window maximum in Rust
    input.to_string()
}


[User] Write unit tests in Python for two-sum. Difficulty: medium. Context: for a backend service. Avoid global mutable state.

[Assistant]
def solve(data):
    """two-sum in Python."""
    if data is None:
        return None
    return data


[User] Refactor TypeScript logic for email validation to improve readability and performance. Difficulty: easy. Context: for an interview prep tool. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // email validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Python for pagination helper. Difficulty: medium. Context: for an internal library. Include input validation.

[Assistant]
def solve(data):
    """pagination helper in Python."""
    if data is None:
        return None
    return data


[User] Write a TypeScript function for JSON schema validation. Difficulty: hard. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // JSON schema validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a JavaScript function for deduplicate preserving order. Difficulty: easy. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
function solve(input) {
  // deduplicate preserving order in JavaScript
  if (input == null) return null;
  return input;
}


[User] Refactor TypeScript logic for merge intervals to improve readability and performance. Difficulty: easy. Context: for a backend service. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // merge intervals in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor TypeScript logic for rate limiter to improve readability and performance. Difficulty: easy. Context: for a coding challenge platform. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // rate limiter in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in C++ for deduplicate preserving order. Difficulty: medium. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // deduplicate preserving order in C++
    return input;
}


[User] Implement RBAC permission check in Rust with edge-case handling. Difficulty: hard. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // RBAC permission check in Rust
    input.to_string()
}


[User] Refactor TypeScript logic for pagination helper to improve readability and performance. Difficulty: medium. Context: for an interview prep tool. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // pagination helper in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a Python function for binary search. Difficulty: hard. Context: for a CLI utility. Avoid global mutable state.

[Assistant]
def binary_search(arr, target):
    lo, hi = 0, len(arr) - 1
    while lo <= hi:
        mid = (lo + hi) // 2
        if arr[mid] == target:
            return mid
        if arr[mid] < target:
            lo = mid + 1
        else:
            hi = mid - 1
    return -1


[User] Fix this Python code for binary search: boundary bug and null handling. Difficulty: medium. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
def binary_search(arr, target):
    lo, hi = 0, len(arr) - 1
    while lo <= hi:
        mid = (lo + hi) // 2
        if arr[mid] == target:
            return mid
        if arr[mid] < target:
            lo = mid + 1
        else:
            hi = mid - 1
    return -1


[User] Implement pagination helper in Python with edge-case handling. Difficulty: hard. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
def solve(data):
    """pagination helper in Python."""
    if data is None:
        return None
    return data


[User] Implement RBAC permission check in Python with edge-case handling. Difficulty: medium. Context: for a backend service. Include input validation.

[Assistant]
def solve(data):
    """RBAC permission check in Python."""
    if data is None:
        return None
    return data


[User] Implement CSV parsing in JavaScript with edge-case handling. Difficulty: hard. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
function solve(input) {
  // CSV parsing in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Rust for JWT verification. Difficulty: easy. Context: for an interview prep tool. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // JWT verification in Rust
    input.to_string()
}


[User] Write a TypeScript function for JSON schema validation. Difficulty: easy. Context: for a coding challenge platform. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // JSON schema validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor Rust logic for RBAC permission check to improve readability and performance. Difficulty: medium. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // RBAC permission check in Rust
    input.to_string()
}


[User] Write a TypeScript function for JSON schema validation. Difficulty: hard. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // JSON schema validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a SQL function for email validation. Difficulty: easy. Context: for an interview prep tool. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this JavaScript code for merge intervals: boundary bug and null handling. Difficulty: medium. Context: for a coding challenge platform. Include input validation.

[Assistant]
function solve(input) {
  // merge intervals in JavaScript
  if (input == null) return null;
  return input;
}


[User] Refactor Go logic for LRU cache to improve readability and performance. Difficulty: hard. Context: for an internal library. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // LRU cache in Go
    return input
}


[User] Implement CSV parsing in JavaScript with edge-case handling. Difficulty: hard. Context: for an internal library. Include input validation.

[Assistant]
function solve(input) {
  // CSV parsing in JavaScript
  if (input == null) return null;
  return input;
}


[User] Implement email validation in TypeScript with edge-case handling. Difficulty: hard. Context: for an internal library. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // email validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in TypeScript for JWT verification. Difficulty: easy. Context: for an internal library. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // JWT verification in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a SQL function for webhook signature check. Difficulty: easy. Context: for an internal library. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this JavaScript code for binary search: boundary bug and null handling. Difficulty: easy. Context: for an internal library. Avoid global mutable state.

[Assistant]
function solve(input) {
  // binary search in JavaScript
  if (input == null) return null;
  return input;
}


[User] Fix this TypeScript code for email validation: boundary bug and null handling. Difficulty: easy. Context: for an internal library. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // email validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor Rust logic for pagination helper to improve readability and performance. Difficulty: easy. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // pagination helper in Rust
    input.to_string()
}


[User] Write a JavaScript function for top-k frequent elements. Difficulty: medium. Context: for a CLI utility. Include input validation.

[Assistant]
function solve(input) {
  // top-k frequent elements in JavaScript
  if (input == null) return null;
  return input;
}


[User] Refactor SQL logic for LRU cache to improve readability and performance. Difficulty: easy. Context: for a CLI utility. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this Rust code for deduplicate preserving order: boundary bug and null handling. Difficulty: medium. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // deduplicate preserving order in Rust
    input.to_string()
}


[User] Refactor JavaScript logic for JWT verification to improve readability and performance. Difficulty: hard. Context: for a backend service. Avoid global mutable state.

[Assistant]
function solve(input) {
  // JWT verification in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a JavaScript function for top-k frequent elements. Difficulty: medium. Context: for an internal library. Include input validation.

[Assistant]
function solve(input) {
  // top-k frequent elements in JavaScript
  if (input == null) return null;
  return input;
}


[User] Fix this C++ code for sliding window maximum: boundary bug and null handling. Difficulty: medium. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // sliding window maximum in C++
    return input;
}


[User] Write a Rust function for retry with backoff. Difficulty: hard. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // retry with backoff in Rust
    input.to_string()
}


[User] Fix this Rust code for LRU cache: boundary bug and null handling. Difficulty: easy. Context: for a CLI utility. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // LRU cache in Rust
    input.to_string()
}


[User] Write a SQL function for merge intervals. Difficulty: easy. Context: for an interview prep tool. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Implement binary search in Go with edge-case handling. Difficulty: easy. Context: for a CLI utility. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // binary search in Go
    return input
}


[User] Write unit tests in C++ for deduplicate preserving order. Difficulty: hard. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // deduplicate preserving order in C++
    return input;
}


[User] Write a JavaScript function for sliding window maximum. Difficulty: medium. Context: for a CLI utility. Include input validation.

[Assistant]
function solve(input) {
  // sliding window maximum in JavaScript
  if (input == null) return null;
  return input;
}


[User] Refactor Rust logic for two-sum to improve readability and performance. Difficulty: hard. Context: for a backend service. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // two-sum in Rust
    input.to_string()
}


[User] Refactor Go logic for JSON schema validation to improve readability and performance. Difficulty: hard. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Refactor JavaScript logic for retry with backoff to improve readability and performance. Difficulty: hard. Context: for an internal library. Avoid global mutable state.

[Assistant]
function solve(input) {
  // retry with backoff in JavaScript
  if (input == null) return null;
  return input;
}


[User] Implement deduplicate preserving order in C++ with edge-case handling. Difficulty: easy. Context: for a backend service. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // deduplicate preserving order in C++
    return input;
}


[User] Refactor TypeScript logic for rate limiter to improve readability and performance. Difficulty: hard. Context: for an internal library. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // rate limiter in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor JavaScript logic for binary search to improve readability and performance. Difficulty: medium. Context: for a CLI utility. Add minimal comments only.

[Assistant]
function solve(input) {
  // binary search in JavaScript
  if (input == null) return null;
  return input;
}


[User] Refactor Bash logic for two-sum to improve readability and performance. Difficulty: medium. Context: for a backend service. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a C++ function for webhook signature check. Difficulty: medium. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // webhook signature check in C++
    return input;
}


[User] Fix this SQL code for merge intervals: boundary bug and null handling. Difficulty: hard. Context: for an interview prep tool. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write unit tests in Bash for sliding window maximum. Difficulty: easy. Context: for an internal library. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Refactor JavaScript logic for top-k frequent elements to improve readability and performance. Difficulty: medium. Context: for an interview prep tool. Avoid global mutable state.

[Assistant]
function solve(input) {
  // top-k frequent elements in JavaScript
  if (input == null) return null;
  return input;
}


[User] Fix this C++ code for retry with backoff: boundary bug and null handling. Difficulty: easy. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // retry with backoff in C++
    return input;
}


[User] Fix this SQL code for email validation: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write a Rust function for merge intervals. Difficulty: easy. Context: for an internal library. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // merge intervals in Rust
    input.to_string()
}


[User] Implement retry with backoff in Python with edge-case handling. Difficulty: easy. Context: for a backend service. Avoid global mutable state.

[Assistant]
def solve(data):
    """retry with backoff in Python."""
    if data is None:
        return None
    return data


[User] Refactor JavaScript logic for sliding window maximum to improve readability and performance. Difficulty: hard. Context: for an interview prep tool. Avoid global mutable state.

[Assistant]
function solve(input) {
  // sliding window maximum in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a Python function for deduplicate preserving order. Difficulty: easy. Context: for a backend service. Include input validation.

[Assistant]
def solve(data):
    """deduplicate preserving order in Python."""
    if data is None:
        return None
    return data


[User] Implement rate limiter in Go with edge-case handling. Difficulty: easy. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // rate limiter in Go
    return input
}


[User] Write unit tests in Go for RBAC permission check. Difficulty: medium. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // RBAC permission check in Go
    return input
}


[User] Write unit tests in TypeScript for pagination helper. Difficulty: easy. Context: for a CLI utility. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // pagination helper in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement sliding window maximum in C++ with edge-case handling. Difficulty: hard. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // sliding window maximum in C++
    return input;
}


[User] Write unit tests in Python for CSV parsing. Difficulty: medium. Context: for a coding challenge platform. Avoid global mutable state.

[Assistant]
def solve(data):
    """CSV parsing in Python."""
    if data is None:
        return None
    return data


[User] Write a Python function for sliding window maximum. Difficulty: easy. Context: for a backend service. Keep time complexity efficient.

[Assistant]
def solve(data):
    """sliding window maximum in Python."""
    if data is None:
        return None
    return data


[User] Refactor Bash logic for deduplicate preserving order to improve readability and performance. Difficulty: medium. Context: for an interview prep tool. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Implement deduplicate preserving order in Bash with edge-case handling. Difficulty: hard. Context: for an interview prep tool. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a Bash function for binary search. Difficulty: medium. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in JavaScript for email validation. Difficulty: easy. Context: for a coding challenge platform. Add minimal comments only.

[Assistant]
function solve(input) {
  // email validation in JavaScript
  if (input == null) return null;
  return input;
}


[User] Implement LRU cache in Python with edge-case handling. Difficulty: medium. Context: for an internal library. Include input validation.

[Assistant]
def solve(data):
    """LRU cache in Python."""
    if data is None:
        return None
    return data


[User] Refactor Python logic for deduplicate preserving order to improve readability and performance. Difficulty: easy. Context: for a CLI utility. Avoid global mutable state.

[Assistant]
def solve(data):
    """deduplicate preserving order in Python."""
    if data is None:
        return None
    return data


[User] Fix this JavaScript code for two-sum: boundary bug and null handling. Difficulty: hard. Context: for an internal library. Avoid global mutable state.

[Assistant]
function solve(input) {
  // two-sum in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in SQL for webhook signature check. Difficulty: easy. Context: for an internal library. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Refactor Go logic for JWT verification to improve readability and performance. Difficulty: easy. Context: for a backend service. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // JWT verification in Go
    return input
}


[User] Write a Python function for email validation. Difficulty: medium. Context: for a backend service. Avoid global mutable state.

[Assistant]
def solve(data):
    """email validation in Python."""
    if data is None:
        return None
    return data


[User] Write unit tests in Rust for sliding window maximum. Difficulty: medium. Context: for a backend service. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // sliding window maximum in Rust
    input.to_string()
}


[User] Fix this JavaScript code for webhook signature check: boundary bug and null handling. Difficulty: easy. Context: for a backend service. Include input validation.

[Assistant]
function solve(input) {
  // webhook signature check in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a Python function for top-k frequent elements. Difficulty: medium. Context: for a coding challenge platform. Avoid global mutable state.

[Assistant]
def solve(data):
    """top-k frequent elements in Python."""
    if data is None:
        return None
    return data


[User] Refactor Rust logic for email validation to improve readability and performance. Difficulty: medium. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // email validation in Rust
    input.to_string()
}


[User] Write unit tests in SQL for JWT verification. Difficulty: medium. Context: for a CLI utility. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write a Rust function for CSV parsing. Difficulty: hard. Context: for an internal library. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // CSV parsing in Rust
    input.to_string()
}


[User] Fix this Rust code for email validation: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // email validation in Rust
    input.to_string()
}


[User] Write a JavaScript function for merge intervals. Difficulty: medium. Context: for a coding challenge platform. Include input validation.

[Assistant]
function solve(input) {
  // merge intervals in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in TypeScript for merge intervals. Difficulty: medium. Context: for a backend service. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // merge intervals in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a C++ function for CSV parsing. Difficulty: easy. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // CSV parsing in C++
    return input;
}


[User] Write unit tests in SQL for LRU cache. Difficulty: medium. Context: for a backend service. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Refactor JavaScript logic for top-k frequent elements to improve readability and performance. Difficulty: easy. Context: for a coding challenge platform. Add minimal comments only.

[Assistant]
function solve(input) {
  // top-k frequent elements in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in C++ for sliding window maximum. Difficulty: easy. Context: for a backend service. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // sliding window maximum in C++
    return input;
}


[User] Refactor C++ logic for LRU cache to improve readability and performance. Difficulty: hard. Context: for an internal library. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // LRU cache in C++
    return input;
}


[User] Fix this Go code for deduplicate preserving order: boundary bug and null handling. Difficulty: hard. Context: for a backend service. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // deduplicate preserving order in Go
    return input
}


[User] Write a Go function for two-sum. Difficulty: hard. Context: for a coding challenge platform. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // two-sum in Go
    return input
}


[User] Refactor Bash logic for two-sum to improve readability and performance. Difficulty: easy. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Refactor C++ logic for deduplicate preserving order to improve readability and performance. Difficulty: easy. Context: for a backend service. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // deduplicate preserving order in C++
    return input;
}


[User] Fix this Bash code for two-sum: boundary bug and null handling. Difficulty: hard. Context: for an interview prep tool. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Fix this Rust code for RBAC permission check: boundary bug and null handling. Difficulty: medium. Context: for a coding challenge platform. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // RBAC permission check in Rust
    input.to_string()
}


[User] Implement pagination helper in TypeScript with edge-case handling. Difficulty: hard. Context: for an internal library. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // pagination helper in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement JSON schema validation in Python with edge-case handling. Difficulty: easy. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
def solve(data):
    """JSON schema validation in Python."""
    if data is None:
        return None
    return data


[User] Write unit tests in JavaScript for rate limiter. Difficulty: hard. Context: for a coding challenge platform. Avoid global mutable state.

[Assistant]
function solve(input) {
  // rate limiter in JavaScript
  if (input == null) return null;
  return input;
}


[User] Implement email validation in TypeScript with edge-case handling. Difficulty: medium. Context: for a backend service. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // email validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor Bash logic for top-k frequent elements to improve readability and performance. Difficulty: hard. Context: for an interview prep tool. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Fix this Go code for JWT verification: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // JWT verification in Go
    return input
}


[User] Fix this Rust code for CSV parsing: boundary bug and null handling. Difficulty: easy. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // CSV parsing in Rust
    input.to_string()
}


[User] Implement CSV parsing in TypeScript with edge-case handling. Difficulty: hard. Context: for a coding challenge platform. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // CSV parsing in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a Rust function for webhook signature check. Difficulty: hard. Context: for an interview prep tool. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // webhook signature check in Rust
    input.to_string()
}


[User] Fix this C++ code for deduplicate preserving order: boundary bug and null handling. Difficulty: hard. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // deduplicate preserving order in C++
    return input;
}


[User] Refactor Python logic for webhook signature check to improve readability and performance. Difficulty: medium. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
def solve(data):
    """webhook signature check in Python."""
    if data is None:
        return None
    return data


[User] Write a JavaScript function for JSON schema validation. Difficulty: medium. Context: for a CLI utility. Include input validation.

[Assistant]
function solve(input) {
  // JSON schema validation in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a Python function for email validation. Difficulty: hard. Context: for an internal library. Keep time complexity efficient.

[Assistant]
def solve(data):
    """email validation in Python."""
    if data is None:
        return None
    return data


[User] Write a JavaScript function for rate limiter. Difficulty: easy. Context: for an interview prep tool. Avoid global mutable state.

[Assistant]
function solve(input) {
  // rate limiter in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a Go function for webhook signature check. Difficulty: medium. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // webhook signature check in Go
    return input
}


[User] Implement top-k frequent elements in TypeScript with edge-case handling. Difficulty: easy. Context: for a backend service. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // top-k frequent elements in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Python for RBAC permission check. Difficulty: easy. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
def solve(data):
    """RBAC permission check in Python."""
    if data is None:
        return None
    return data


[User] Refactor JavaScript logic for webhook signature check to improve readability and performance. Difficulty: hard. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
function solve(input) {
  // webhook signature check in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a Rust function for RBAC permission check. Difficulty: medium. Context: for a coding challenge platform. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // RBAC permission check in Rust
    input.to_string()
}


[User] Write a Rust function for sliding window maximum. Difficulty: hard. Context: for a CLI utility. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // sliding window maximum in Rust
    input.to_string()
}


[User] Fix this C++ code for binary search: boundary bug and null handling. Difficulty: easy. Context: for a CLI utility. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // binary search in C++
    return input;
}


[User] Write unit tests in Python for JWT verification. Difficulty: easy. Context: for a coding challenge platform. Include input validation.

[Assistant]
def solve(data):
    """JWT verification in Python."""
    if data is None:
        return None
    return data


[User] Fix this C++ code for LRU cache: boundary bug and null handling. Difficulty: easy. Context: for a coding challenge platform. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // LRU cache in C++
    return input;
}


[User] Refactor Python logic for pagination helper to improve readability and performance. Difficulty: easy. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
def solve(data):
    """pagination helper in Python."""
    if data is None:
        return None
    return data


[User] Implement LRU cache in SQL with edge-case handling. Difficulty: hard. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write unit tests in Go for retry with backoff. Difficulty: easy. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // retry with backoff in Go
    return input
}


[User] Write a Bash function for top-k frequent elements. Difficulty: medium. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a Bash function for sliding window maximum. Difficulty: easy. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Refactor Go logic for two-sum to improve readability and performance. Difficulty: medium. Context: for an internal library. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // two-sum in Go
    return input
}


[User] Refactor SQL logic for JWT verification to improve readability and performance. Difficulty: hard. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this TypeScript code for top-k frequent elements: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // top-k frequent elements in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement webhook signature check in SQL with edge-case handling. Difficulty: medium. Context: for a backend service. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Refactor Rust logic for two-sum to improve readability and performance. Difficulty: hard. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // two-sum in Rust
    input.to_string()
}


[User] Fix this Rust code for webhook signature check: boundary bug and null handling. Difficulty: hard. Context: for a coding challenge platform. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // webhook signature check in Rust
    input.to_string()
}


[User] Fix this Rust code for binary search: boundary bug and null handling. Difficulty: easy. Context: for a backend service. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // binary search in Rust
    input.to_string()
}


[User] Refactor Go logic for rate limiter to improve readability and performance. Difficulty: medium. Context: for an internal library. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // rate limiter in Go
    return input
}


[User] Refactor Python logic for JWT verification to improve readability and performance. Difficulty: hard. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
def solve(data):
    """JWT verification in Python."""
    if data is None:
        return None
    return data


[User] Refactor Go logic for email validation to improve readability and performance. Difficulty: medium. Context: for a backend service. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // email validation in Go
    return input
}


[User] Write a Rust function for webhook signature check. Difficulty: medium. Context: for an interview prep tool. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // webhook signature check in Rust
    input.to_string()
}


[User] Fix this TypeScript code for RBAC permission check: boundary bug and null handling. Difficulty: hard. Context: for a coding challenge platform. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // RBAC permission check in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement deduplicate preserving order in Bash with edge-case handling. Difficulty: easy. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a Go function for rate limiter. Difficulty: easy. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // rate limiter in Go
    return input
}


[User] Fix this SQL code for top-k frequent elements: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this Bash code for merge intervals: boundary bug and null handling. Difficulty: hard. Context: for a coding challenge platform. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in TypeScript for binary search. Difficulty: medium. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // binary search in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Go for binary search. Difficulty: hard. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // binary search in Go
    return input
}


[User] Refactor Python logic for retry with backoff to improve readability and performance. Difficulty: medium. Context: for a CLI utility. Avoid global mutable state.

[Assistant]
def solve(data):
    """retry with backoff in Python."""
    if data is None:
        return None
    return data


[User] Implement deduplicate preserving order in JavaScript with edge-case handling. Difficulty: medium. Context: for an interview prep tool. Include input validation.

[Assistant]
function solve(input) {
  // deduplicate preserving order in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Bash for deduplicate preserving order. Difficulty: easy. Context: for an interview prep tool. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a C++ function for merge intervals. Difficulty: easy. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // merge intervals in C++
    return input;
}


[User] Fix this Bash code for webhook signature check: boundary bug and null handling. Difficulty: medium. Context: for a backend service. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Implement JSON schema validation in SQL with edge-case handling. Difficulty: easy. Context: for an interview prep tool. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write a Rust function for deduplicate preserving order. Difficulty: medium. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // deduplicate preserving order in Rust
    input.to_string()
}


[User] Refactor C++ logic for pagination helper to improve readability and performance. Difficulty: easy. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // pagination helper in C++
    return input;
}


[User] Implement JSON schema validation in Go with edge-case handling. Difficulty: medium. Context: for a CLI utility. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Write unit tests in SQL for retry with backoff. Difficulty: hard. Context: for an internal library. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this Go code for JSON schema validation: boundary bug and null handling. Difficulty: medium. Context: for a backend service. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Write unit tests in TypeScript for top-k frequent elements. Difficulty: easy. Context: for a backend service. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // top-k frequent elements in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor SQL logic for rate limiter to improve readability and performance. Difficulty: hard. Context: for a backend service. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this C++ code for RBAC permission check: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // RBAC permission check in C++
    return input;
}


[User] Implement two-sum in SQL with edge-case handling. Difficulty: hard. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this Bash code for JSON schema validation: boundary bug and null handling. Difficulty: easy. Context: for a backend service. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in Rust for JWT verification. Difficulty: hard. Context: for a coding challenge platform. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // JWT verification in Rust
    input.to_string()
}


[User] Fix this JavaScript code for webhook signature check: boundary bug and null handling. Difficulty: hard. Context: for a coding challenge platform. Add minimal comments only.

[Assistant]
function solve(input) {
  // webhook signature check in JavaScript
  if (input == null) return null;
  return input;
}


[User] Implement JWT verification in C++ with edge-case handling. Difficulty: easy. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // JWT verification in C++
    return input;
}


[User] Write unit tests in C++ for LRU cache. Difficulty: medium. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // LRU cache in C++
    return input;
}


[User] Refactor TypeScript logic for LRU cache to improve readability and performance. Difficulty: medium. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // LRU cache in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a JavaScript function for merge intervals. Difficulty: medium. Context: for an interview prep tool. Avoid global mutable state.

[Assistant]
function solve(input) {
  // merge intervals in JavaScript
  if (input == null) return null;
  return input;
}


[User] Fix this TypeScript code for CSV parsing: boundary bug and null handling. Difficulty: medium. Context: for a backend service. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // CSV parsing in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a JavaScript function for RBAC permission check. Difficulty: easy. Context: for an internal library. Avoid global mutable state.

[Assistant]
function solve(input) {
  // RBAC permission check in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Go for pagination helper. Difficulty: hard. Context: for a CLI utility. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // pagination helper in Go
    return input
}


[User] Write unit tests in SQL for rate limiter. Difficulty: hard. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write a Rust function for JWT verification. Difficulty: medium. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // JWT verification in Rust
    input.to_string()
}


[User] Write a C++ function for sliding window maximum. Difficulty: hard. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // sliding window maximum in C++
    return input;
}


[User] Write a TypeScript function for retry with backoff. Difficulty: medium. Context: for a CLI utility. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // retry with backoff in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement two-sum in Python with edge-case handling. Difficulty: easy. Context: for an internal library. Include input validation.

[Assistant]
def solve(data):
    """two-sum in Python."""
    if data is None:
        return None
    return data


[User] Refactor Bash logic for top-k frequent elements to improve readability and performance. Difficulty: hard. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Fix this C++ code for deduplicate preserving order: boundary bug and null handling. Difficulty: medium. Context: for an interview prep tool. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // deduplicate preserving order in C++
    return input;
}


[User] Implement deduplicate preserving order in Python with edge-case handling. Difficulty: medium. Context: for a CLI utility. Avoid global mutable state.

[Assistant]
def solve(data):
    """deduplicate preserving order in Python."""
    if data is None:
        return None
    return data


[User] Write a Go function for JWT verification. Difficulty: medium. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // JWT verification in Go
    return input
}


[User] Refactor Go logic for JSON schema validation to improve readability and performance. Difficulty: easy. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Write unit tests in TypeScript for retry with backoff. Difficulty: medium. Context: for a backend service. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // retry with backoff in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Go for sliding window maximum. Difficulty: easy. Context: for a CLI utility. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // sliding window maximum in Go
    return input
}


[User] Write a Go function for LRU cache. Difficulty: hard. Context: for a backend service. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // LRU cache in Go
    return input
}


[User] Write unit tests in Bash for JSON schema validation. Difficulty: medium. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a JavaScript function for rate limiter. Difficulty: hard. Context: for a CLI utility. Include input validation.

[Assistant]
function solve(input) {
  // rate limiter in JavaScript
  if (input == null) return null;
  return input;
}


[User] Refactor TypeScript logic for email validation to improve readability and performance. Difficulty: hard. Context: for a CLI utility. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // email validation in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor TypeScript logic for RBAC permission check to improve readability and performance. Difficulty: easy. Context: for a CLI utility. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // RBAC permission check in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Bash for merge intervals. Difficulty: easy. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Implement email validation in Bash with edge-case handling. Difficulty: easy. Context: for an interview prep tool. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a Bash function for JWT verification. Difficulty: medium. Context: for an interview prep tool. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a Go function for top-k frequent elements. Difficulty: medium. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // top-k frequent elements in Go
    return input
}


[User] Write unit tests in TypeScript for rate limiter. Difficulty: hard. Context: for a backend service. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // rate limiter in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement binary search in Go with edge-case handling. Difficulty: medium. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // binary search in Go
    return input
}


[User] Write unit tests in Rust for CSV parsing. Difficulty: medium. Context: for an internal library. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // CSV parsing in Rust
    input.to_string()
}


[User] Write unit tests in Rust for rate limiter. Difficulty: medium. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // rate limiter in Rust
    input.to_string()
}


[User] Implement JSON schema validation in Go with edge-case handling. Difficulty: hard. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Write a Go function for binary search. Difficulty: hard. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // binary search in Go
    return input
}


[User] Refactor Bash logic for sliding window maximum to improve readability and performance. Difficulty: easy. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in SQL for pagination helper. Difficulty: easy. Context: for a CLI utility. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this Go code for sliding window maximum: boundary bug and null handling. Difficulty: hard. Context: for a backend service. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // sliding window maximum in Go
    return input
}


[User] Write unit tests in SQL for pagination helper. Difficulty: easy. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Refactor Bash logic for retry with backoff to improve readability and performance. Difficulty: medium. Context: for a coding challenge platform. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Refactor JavaScript logic for top-k frequent elements to improve readability and performance. Difficulty: hard. Context: for an internal library. Avoid global mutable state.

[Assistant]
function solve(input) {
  // top-k frequent elements in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a SQL function for pagination helper. Difficulty: hard. Context: for a CLI utility. Keep it production-ready.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write a Go function for binary search. Difficulty: medium. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // binary search in Go
    return input
}


[User] Refactor Rust logic for RBAC permission check to improve readability and performance. Difficulty: easy. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // RBAC permission check in Rust
    input.to_string()
}


[User] Implement rate limiter in Go with edge-case handling. Difficulty: hard. Context: for an internal library. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // rate limiter in Go
    return input
}


[User] Fix this Bash code for merge intervals: boundary bug and null handling. Difficulty: easy. Context: for a backend service. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in JavaScript for webhook signature check. Difficulty: easy. Context: for an internal library. Add minimal comments only.

[Assistant]
function solve(input) {
  // webhook signature check in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in SQL for rate limiter. Difficulty: easy. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this SQL code for merge intervals: boundary bug and null handling. Difficulty: medium. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write unit tests in Go for merge intervals. Difficulty: hard. Context: for a coding challenge platform. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // merge intervals in Go
    return input
}


[User] Write unit tests in Python for JSON schema validation. Difficulty: hard. Context: for an internal library. Avoid global mutable state.

[Assistant]
def solve(data):
    """JSON schema validation in Python."""
    if data is None:
        return None
    return data


[User] Write a Python function for CSV parsing. Difficulty: easy. Context: for an internal library. Keep time complexity efficient.

[Assistant]
def solve(data):
    """CSV parsing in Python."""
    if data is None:
        return None
    return data


[User] Implement retry with backoff in C++ with edge-case handling. Difficulty: medium. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // retry with backoff in C++
    return input;
}


[User] Refactor JavaScript logic for pagination helper to improve readability and performance. Difficulty: medium. Context: for a backend service. Avoid global mutable state.

[Assistant]
function solve(input) {
  // pagination helper in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a Python function for email validation. Difficulty: hard. Context: for a backend service. Include input validation.

[Assistant]
def solve(data):
    """email validation in Python."""
    if data is None:
        return None
    return data


[User] Implement CSV parsing in Go with edge-case handling. Difficulty: easy. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // CSV parsing in Go
    return input
}


[User] Write a Bash function for LRU cache. Difficulty: hard. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in Go for JSON schema validation. Difficulty: medium. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Write a JavaScript function for retry with backoff. Difficulty: easy. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
function solve(input) {
  // retry with backoff in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a Python function for webhook signature check. Difficulty: medium. Context: for a coding challenge platform. Include input validation.

[Assistant]
def solve(data):
    """webhook signature check in Python."""
    if data is None:
        return None
    return data


[User] Refactor Bash logic for top-k frequent elements to improve readability and performance. Difficulty: easy. Context: for an interview prep tool. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in TypeScript for RBAC permission check. Difficulty: easy. Context: for an internal library. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // RBAC permission check in TypeScript
  if (input == null) return null;
  return input;
}


[User] Fix this Rust code for two-sum: boundary bug and null handling. Difficulty: medium. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // two-sum in Rust
    input.to_string()
}


[User] Refactor Go logic for webhook signature check to improve readability and performance. Difficulty: easy. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // webhook signature check in Go
    return input
}


[User] Write a SQL function for deduplicate preserving order. Difficulty: hard. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Implement top-k frequent elements in TypeScript with edge-case handling. Difficulty: medium. Context: for an internal library. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // top-k frequent elements in TypeScript
  if (input == null) return null;
  return input;
}


[User] Fix this Go code for LRU cache: boundary bug and null handling. Difficulty: easy. Context: for a CLI utility. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // LRU cache in Go
    return input
}


[User] Implement CSV parsing in SQL with edge-case handling. Difficulty: easy. Context: for a coding challenge platform. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Refactor Python logic for JWT verification to improve readability and performance. Difficulty: medium. Context: for an internal library. Avoid global mutable state.

[Assistant]
def solve(data):
    """JWT verification in Python."""
    if data is None:
        return None
    return data


[User] Refactor C++ logic for top-k frequent elements to improve readability and performance. Difficulty: medium. Context: for an interview prep tool. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // top-k frequent elements in C++
    return input;
}


[User] Write unit tests in Rust for two-sum. Difficulty: medium. Context: for an interview prep tool. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // two-sum in Rust
    input.to_string()
}


[User] Refactor TypeScript logic for binary search to improve readability and performance. Difficulty: medium. Context: for a CLI utility. Add minimal comments only.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // binary search in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor Python logic for email validation to improve readability and performance. Difficulty: easy. Context: for an interview prep tool. Include input validation.

[Assistant]
def solve(data):
    """email validation in Python."""
    if data is None:
        return None
    return data


[User] Write a TypeScript function for RBAC permission check. Difficulty: hard. Context: for an interview prep tool. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // RBAC permission check in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement retry with backoff in Rust with edge-case handling. Difficulty: medium. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // retry with backoff in Rust
    input.to_string()
}


[User] Implement deduplicate preserving order in TypeScript with edge-case handling. Difficulty: easy. Context: for a backend service. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // deduplicate preserving order in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement JSON schema validation in SQL with edge-case handling. Difficulty: medium. Context: for a backend service. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Implement JWT verification in TypeScript with edge-case handling. Difficulty: easy. Context: for an internal library. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // JWT verification in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement RBAC permission check in JavaScript with edge-case handling. Difficulty: hard. Context: for a CLI utility. Avoid global mutable state.

[Assistant]
function solve(input) {
  // RBAC permission check in JavaScript
  if (input == null) return null;
  return input;
}


[User] Implement deduplicate preserving order in Go with edge-case handling. Difficulty: medium. Context: for a CLI utility. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // deduplicate preserving order in Go
    return input
}


[User] Refactor C++ logic for email validation to improve readability and performance. Difficulty: medium. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // email validation in C++
    return input;
}


[User] Implement sliding window maximum in Rust with edge-case handling. Difficulty: medium. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
pub fn solve(input: &str) -> String {
    // sliding window maximum in Rust
    input.to_string()
}


[User] Write a Go function for JWT verification. Difficulty: easy. Context: for a coding challenge platform. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // JWT verification in Go
    return input
}


[User] Implement binary search in Go with edge-case handling. Difficulty: easy. Context: for a coding challenge platform. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // binary search in Go
    return input
}


[User] Fix this TypeScript code for retry with backoff: boundary bug and null handling. Difficulty: hard. Context: for an interview prep tool. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // retry with backoff in TypeScript
  if (input == null) return null;
  return input;
}


[User] Fix this Go code for webhook signature check: boundary bug and null handling. Difficulty: easy. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // webhook signature check in Go
    return input
}


[User] Fix this Rust code for binary search: boundary bug and null handling. Difficulty: easy. Context: for a CLI utility. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // binary search in Rust
    input.to_string()
}


[User] Implement rate limiter in Rust with edge-case handling. Difficulty: easy. Context: for an interview prep tool. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // rate limiter in Rust
    input.to_string()
}


[User] Fix this Bash code for sliding window maximum: boundary bug and null handling. Difficulty: easy. Context: for a backend service. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Implement deduplicate preserving order in TypeScript with edge-case handling. Difficulty: easy. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // deduplicate preserving order in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor Bash logic for merge intervals to improve readability and performance. Difficulty: medium. Context: for a CLI utility. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write unit tests in JavaScript for pagination helper. Difficulty: hard. Context: for an interview prep tool. Avoid global mutable state.

[Assistant]
function solve(input) {
  // pagination helper in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write unit tests in Python for JSON schema validation. Difficulty: medium. Context: for a backend service. Include input validation.

[Assistant]
def solve(data):
    """JSON schema validation in Python."""
    if data is None:
        return None
    return data


[User] Refactor Go logic for CSV parsing to improve readability and performance. Difficulty: hard. Context: for an interview prep tool. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // CSV parsing in Go
    return input
}


[User] Write a C++ function for sliding window maximum. Difficulty: easy. Context: for an interview prep tool. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // sliding window maximum in C++
    return input;
}


[User] Write a SQL function for binary search. Difficulty: hard. Context: for an interview prep tool. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write unit tests in C++ for retry with backoff. Difficulty: easy. Context: for an internal library. Avoid global mutable state.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // retry with backoff in C++
    return input;
}


[User] Fix this C++ code for sliding window maximum: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // sliding window maximum in C++
    return input;
}


[User] Write unit tests in SQL for webhook signature check. Difficulty: easy. Context: for a coding challenge platform. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this SQL code for pagination helper: boundary bug and null handling. Difficulty: easy. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write unit tests in C++ for two-sum. Difficulty: easy. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
#include <string>
std::string solve(const std::string& input) {
    // two-sum in C++
    return input;
}


[User] Refactor Rust logic for JSON schema validation to improve readability and performance. Difficulty: easy. Context: for an interview prep tool. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // JSON schema validation in Rust
    input.to_string()
}


[User] Refactor Bash logic for webhook signature check to improve readability and performance. Difficulty: easy. Context: for an interview prep tool. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Fix this SQL code for rate limiter: boundary bug and null handling. Difficulty: easy. Context: for an interview prep tool. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Fix this SQL code for deduplicate preserving order: boundary bug and null handling. Difficulty: medium. Context: for an interview prep tool. Return deterministic output.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Write unit tests in Python for sliding window maximum. Difficulty: easy. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
def solve(data):
    """sliding window maximum in Python."""
    if data is None:
        return None
    return data


[User] Write a Bash function for webhook signature check. Difficulty: hard. Context: for an interview prep tool. Return deterministic output.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Fix this JavaScript code for JSON schema validation: boundary bug and null handling. Difficulty: medium. Context: for a CLI utility. Include input validation.

[Assistant]
function solve(input) {
  // JSON schema validation in JavaScript
  if (input == null) return null;
  return input;
}


[User] Refactor SQL logic for binary search to improve readability and performance. Difficulty: hard. Context: for a CLI utility. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Implement pagination helper in TypeScript with edge-case handling. Difficulty: medium. Context: for a CLI utility. Use idiomatic style.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // pagination helper in TypeScript
  if (input == null) return null;
  return input;
}


[User] Implement CSV parsing in TypeScript with edge-case handling. Difficulty: easy. Context: for a backend service. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // CSV parsing in TypeScript
  if (input == null) return null;
  return input;
}


[User] Fix this JavaScript code for JWT verification: boundary bug and null handling. Difficulty: easy. Context: for a CLI utility. Add minimal comments only.

[Assistant]
function solve(input) {
  // JWT verification in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a JavaScript function for webhook signature check. Difficulty: hard. Context: for a CLI utility. Include input validation.

[Assistant]
function solve(input) {
  // webhook signature check in JavaScript
  if (input == null) return null;
  return input;
}


[User] Write a SQL function for JWT verification. Difficulty: hard. Context: for an internal library. Handle edge cases explicitly.

[Assistant]
SELECT id, name
FROM items
WHERE active = TRUE
ORDER BY created_at DESC
LIMIT 50;


[User] Refactor Bash logic for RBAC permission check to improve readability and performance. Difficulty: hard. Context: for a coding challenge platform. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Implement binary search in Bash with edge-case handling. Difficulty: easy. Context: for a backend service. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a TypeScript function for RBAC permission check. Difficulty: medium. Context: for a CLI utility. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // RBAC permission check in TypeScript
  if (input == null) return null;
  return input;
}


[User] Refactor JavaScript logic for CSV parsing to improve readability and performance. Difficulty: hard. Context: for a coding challenge platform. Avoid global mutable state.

[Assistant]
function solve(input) {
  // CSV parsing in JavaScript
  if (input == null) return null;
  return input;
}


[User] Refactor Rust logic for email validation to improve readability and performance. Difficulty: easy. Context: for a CLI utility. Return deterministic output.

[Assistant]
pub fn solve(input: &str) -> String {
    // email validation in Rust
    input.to_string()
}


[User] Write unit tests in TypeScript for deduplicate preserving order. Difficulty: easy. Context: for a backend service. Include input validation.

[Assistant]
export function solve<T>(input: T | null | undefined): T | null {
  // deduplicate preserving order in TypeScript
  if (input == null) return null;
  return input;
}


[User] Write a Bash function for webhook signature check. Difficulty: easy. Context: for a coding challenge platform. Keep time complexity efficient.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Write a Go function for JSON schema validation. Difficulty: easy. Context: for a backend service. Handle edge cases explicitly.

[Assistant]
func Solve(input string) string {
    // JSON schema validation in Go
    return input
}


[User] Write a Bash function for retry with backoff. Difficulty: medium. Context: for a CLI utility. Keep it production-ready.

[Assistant]
#!/usr/bin/env bash
set -euo pipefail
input="${1:-}"
echo "$input"


[User] Refactor Rust logic for LRU cache to improve readability and performance. Difficulty: easy. Context: for a CLI utility. Use idiomatic style.

[Assistant]
pub fn solve(input: &str) -> String {
    // LRU cache in Rust
    input.to_string()
}


[User] Fix this Go code for deduplicate preserving order: boundary bug and null handling. Difficulty: easy. Context: for a coding challenge platform. Use idiomatic style.

[Assistant]
func Solve(input string) string {
    // deduplicate preserving order in Go
    return input
}


[User] Write a Go function for rate limiter. Difficulty: medium. Context: for an internal library. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // rate limiter in Go
    return input
}


[User] Write unit tests in Go for pagination helper. Difficulty: medium. Context: for a backend service. Add minimal comments only.

[Assistant]
func Solve(input string) string {
    // pagination helper in Go
    return input
}