message stringlengths 2 433k | message_type stringclasses 2
values | message_id int64 0 1 | conversation_id int64 113 108k | cluster float64 12 12 | __index_level_0__ int64 226 217k |
|---|---|---|---|---|---|
Provide tags and a correct Python 3 solution for this coding contest problem.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [2, 5, 4, 1], [0] — are not.
A sequence of inte... | instruction | 0 | 30,964 | 12 | 61,928 |
Tags: combinatorics, dp
Correct Solution:
```
from copy import deepcopy
import itertools
from bisect import bisect_left
from bisect import bisect_right
import math
from collections import deque
def read():
return int(input())
def readmap():
return map(int, input().split())
def readlist():
return list(... | output | 1 | 30,964 | 12 | 61,929 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [2, 5, 4, 1], [0] — are not.
A sequence of inte... | instruction | 0 | 30,965 | 12 | 61,930 |
Tags: combinatorics, dp
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
from types import GeneratorType
from collections import defaultdict
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
... | output | 1 | 30,965 | 12 | 61,931 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [2, 5, 4, 1], [0] — are not.
A sequence of inte... | instruction | 0 | 30,966 | 12 | 61,932 |
Tags: combinatorics, dp
Correct Solution:
```
n = int(input())
m = 998244353
dp = [1] + [0] * n;
for i in map(int, input().split()) :
v = dp[:]
if(0 < i < n) :
v[i] = (v[i] + v[0]) % m
for j in range(n) :
v[j] = (v[j] + dp[j + 1]) % m
dp = v
print((dp[0] - 1) % m)
``` | output | 1 | 30,966 | 12 | 61,933 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [2, 5, 4, 1], [0] — are not.
A sequence of inte... | instruction | 0 | 30,967 | 12 | 61,934 |
Tags: combinatorics, dp
Correct Solution:
```
n = int(input())
m = 998244353
dp = [1] + [0] * n;
for i in map(int, input().split()) :
v = dp[:]
if(0 < i < n) :
v[i] = (v[i] + v[0]) % m
for j in range(n) :
v[j] = (v[j] + dp[j + 1]) % m
dp = v
print((dp[0] - 1) % m)
#print the result
... | output | 1 | 30,967 | 12 | 61,935 |
Provide tags and a correct Python 3 solution for this coding contest problem.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [2, 5, 4, 1], [0] — are not.
A sequence of inte... | instruction | 0 | 30,968 | 12 | 61,936 |
Tags: combinatorics, dp
Correct Solution:
```
mod=998244353
def ncr(n,r):
if n<r or n==0:
return 0
if r==0:
return 1
return (fac[n]*invfac[r]*invfac[n-r])%mod
n=int(input())
a=list(map(int,input().split()))
fac = [1] * (n + 1)
invfac = [1] * (n + 1)
for i in range(1, n + 1):
fac[i] = (i * fac[i - 1]) % mod... | output | 1 | 30,968 | 12 | 61,937 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [... | instruction | 0 | 30,969 | 12 | 61,938 |
Yes | output | 1 | 30,969 | 12 | 61,939 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [... | instruction | 0 | 30,970 | 12 | 61,940 |
Yes | output | 1 | 30,970 | 12 | 61,941 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [... | instruction | 0 | 30,971 | 12 | 61,942 |
Yes | output | 1 | 30,971 | 12 | 61,943 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [... | instruction | 0 | 30,972 | 12 | 61,944 |
Yes | output | 1 | 30,972 | 12 | 61,945 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [... | instruction | 0 | 30,973 | 12 | 61,946 |
No | output | 1 | 30,973 | 12 | 61,947 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [... | instruction | 0 | 30,974 | 12 | 61,948 |
No | output | 1 | 30,974 | 12 | 61,949 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [... | instruction | 0 | 30,975 | 12 | 61,950 |
No | output | 1 | 30,975 | 12 | 61,951 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
The sequence of integers a_1, a_2, ..., a_k is called a good array if a_1 = k - 1 and a_1 > 0. For example, the sequences [3, -1, 44, 0], [1, -99] are good arrays, and the sequences [3, 7, 8], [... | instruction | 0 | 30,976 | 12 | 61,952 |
No | output | 1 | 30,976 | 12 | 61,953 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a consisting of n elements. You may apply several operations (possibly zero) to it.
During each operation, you choose two indices i and j (1 ≤ i, j ≤ n; i ≠ j), increase ... | instruction | 0 | 31,135 | 12 | 62,270 |
No | output | 1 | 31,135 | 12 | 62,271 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a consisting of n elements. You may apply several operations (possibly zero) to it.
During each operation, you choose two indices i and j (1 ≤ i, j ≤ n; i ≠ j), increase ... | instruction | 0 | 31,136 | 12 | 62,272 |
No | output | 1 | 31,136 | 12 | 62,273 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a consisting of n elements. You may apply several operations (possibly zero) to it.
During each operation, you choose two indices i and j (1 ≤ i, j ≤ n; i ≠ j), increase ... | instruction | 0 | 31,137 | 12 | 62,274 |
No | output | 1 | 31,137 | 12 | 62,275 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You are given an array a consisting of n elements. You may apply several operations (possibly zero) to it.
During each operation, you choose two indices i and j (1 ≤ i, j ≤ n; i ≠ j), increase ... | instruction | 0 | 31,138 | 12 | 62,276 |
No | output | 1 | 31,138 | 12 | 62,277 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n integers a_1, a_2, …, a_n.
You have to construct two sequences of integers b and c with length n that satisfy:
* for every i (1≤ i≤ n) b_i+c_i=a_i
* b is non-decreasing, which means that for every 1<i≤ n,... | instruction | 0 | 31,171 | 12 | 62,342 |
Tags: constructive algorithms, data structures, greedy, math
Correct Solution:
```
'''
Auther: ghoshashis545 Ashis Ghosh
College: jalpaiguri Govt Enggineering College
'''
from os import path
import sys
from heapq import heappush,heappop
from functools import cmp_to_key as ctk
from collections import deque,defa... | output | 1 | 31,171 | 12 | 62,343 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n integers a_1, a_2, …, a_n.
You have to construct two sequences of integers b and c with length n that satisfy:
* for every i (1≤ i≤ n) b_i+c_i=a_i
* b is non-decreasing, which means that for every 1<i≤ n,... | instruction | 0 | 31,172 | 12 | 62,344 |
Tags: constructive algorithms, data structures, greedy, math
Correct Solution:
```
import sys
_ord, inp, num, neg, _Index = lambda x: x, [], 0, False, 0
i, s = 0, sys.stdin.buffer.read()
try:
while True:
if s[i] >= b"0"[0]:num = 10 * num + _ord(s[i]) - 48
elif s[i] == b"-"[0]:neg = True
elif... | output | 1 | 31,172 | 12 | 62,345 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n integers a_1, a_2, …, a_n.
You have to construct two sequences of integers b and c with length n that satisfy:
* for every i (1≤ i≤ n) b_i+c_i=a_i
* b is non-decreasing, which means that for every 1<i≤ n,... | instruction | 0 | 31,173 | 12 | 62,346 |
Tags: constructive algorithms, data structures, greedy, math
Correct Solution:
```
import sys
input = sys.stdin.buffer.readline
class BIT:
def __init__(self, n):
self.size = n
self.bit = [0] * (n + 1)
def build(self, array):
for i in range(1, self.size + 1):
if i - 1 + (i ... | output | 1 | 31,173 | 12 | 62,347 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n integers a_1, a_2, …, a_n.
You have to construct two sequences of integers b and c with length n that satisfy:
* for every i (1≤ i≤ n) b_i+c_i=a_i
* b is non-decreasing, which means that for every 1<i≤ n,... | instruction | 0 | 31,174 | 12 | 62,348 |
Tags: constructive algorithms, data structures, greedy, math
Correct Solution:
```
import sys
sys.setrecursionlimit(10**5)
int1 = lambda x: int(x)-1
p2D = lambda x: print(*x, sep="\n")
def II(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.... | output | 1 | 31,174 | 12 | 62,349 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n integers a_1, a_2, …, a_n.
You have to construct two sequences of integers b and c with length n that satisfy:
* for every i (1≤ i≤ n) b_i+c_i=a_i
* b is non-decreasing, which means that for every 1<i≤ n,... | instruction | 0 | 31,175 | 12 | 62,350 |
Tags: constructive algorithms, data structures, greedy, math
Correct Solution:
```
import sys; Case=1
#Case=int(sys.stdin.buffer.readline())
def main():
#Code goes here
n=inin()
a=inar()
d=[0 for i in range(n-1)]
k=0
for i in range(1,n):
d[i-1]+=a[i]-a[i-1]
k+=max(0,a[i]-a[i-1])... | output | 1 | 31,175 | 12 | 62,351 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n integers a_1, a_2, …, a_n.
You have to construct two sequences of integers b and c with length n that satisfy:
* for every i (1≤ i≤ n) b_i+c_i=a_i
* b is non-decreasing, which means that for every 1<i≤ n,... | instruction | 0 | 31,176 | 12 | 62,352 |
Tags: constructive algorithms, data structures, greedy, math
Correct Solution:
```
import sys
import atexit
import os
class Fastio:
def __init__(self):
self.ibuf = bytes()
self.obuf = bytearray()
self.pil = 0
self.pir = 0
self.buf = bytearray(21)
self.buf[20] = 10
... | output | 1 | 31,176 | 12 | 62,353 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n integers a_1, a_2, …, a_n.
You have to construct two sequences of integers b and c with length n that satisfy:
* for every i (1≤ i≤ n) b_i+c_i=a_i
* b is non-decreasing, which means that for every 1<i≤ n,... | instruction | 0 | 31,177 | 12 | 62,354 |
Tags: constructive algorithms, data structures, greedy, math
Correct Solution:
```
import os
import sys
from io import BytesIO, IOBase
# region fastio
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writa... | output | 1 | 31,177 | 12 | 62,355 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You are given a sequence of n integers a_1, a_2, …, a_n.
You have to construct two sequences of integers b and c with length n that satisfy:
* for every i (1≤ i≤ n) b_i+c_i=a_i
* b is non-decreasing, which means that for every 1<i≤ n,... | instruction | 0 | 31,178 | 12 | 62,356 |
Tags: constructive algorithms, data structures, greedy, math
Correct Solution:
```
import sys
n = int(sys.stdin.readline().strip())
a = list(map(int, sys.stdin.readline().strip().split()))
d = []
b = 0
c = 0
F = a[0]
L = a[-1]
for i in range (1, n):
x = a[i] - a[i-1]
if x >= 0:
b = b + x
else:
... | output | 1 | 31,178 | 12 | 62,357 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, but it turned out that you should follow some ru... | instruction | 0 | 31,212 | 12 | 62,424 |
Tags: brute force, constructive algorithms, data structures, greedy, implementation, sortings
Correct Solution:
```
#### IMPORTANT LIBRARY ####
############################
### DO NOT USE import random --> 250ms to load the library
############################
### In case of extra libraries: https://github.com/cher... | output | 1 | 31,212 | 12 | 62,425 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, but it turned out that you should follow some ru... | instruction | 0 | 31,213 | 12 | 62,426 |
Tags: brute force, constructive algorithms, data structures, greedy, implementation, sortings
Correct Solution:
```
##############################
import os
import sys
from io import BytesIO, IOBase
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
... | output | 1 | 31,213 | 12 | 62,427 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, but it turned out that you should follow some ru... | instruction | 0 | 31,214 | 12 | 62,428 |
Tags: brute force, constructive algorithms, data structures, greedy, implementation, sortings
Correct Solution:
```
from collections import Counter
for _ in range(int(input())):
n=int(input())
l=list(map(int,input().split()))
if n==1:
print('YES')
print(l[0]+l[1])
print(l[0],l[1])
... | output | 1 | 31,214 | 12 | 62,429 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, but it turned out that you should follow some ru... | instruction | 0 | 31,215 | 12 | 62,430 |
Tags: brute force, constructive algorithms, data structures, greedy, implementation, sortings
Correct Solution:
```
from collections import *
from sys import *
input = stdin.readline
for _ in range(int(input())):
n = int(input())
l = sorted(map(int,input().split()))
d = Counter(l)
d[l[-1]]-=1
ans... | output | 1 | 31,215 | 12 | 62,431 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, but it turned out that you should follow some ru... | instruction | 0 | 31,216 | 12 | 62,432 |
Tags: brute force, constructive algorithms, data structures, greedy, implementation, sortings
Correct Solution:
```
from collections import Counter
def solve(case):
n=int(input())
n*=2
l=list(map(int,input().split()))
l.sort(reverse=True)
for i in range(1,n):
f=0
d=Counter(l)
... | output | 1 | 31,216 | 12 | 62,433 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, but it turned out that you should follow some ru... | instruction | 0 | 31,217 | 12 | 62,434 |
Tags: brute force, constructive algorithms, data structures, greedy, implementation, sortings
Correct Solution:
```
# ---------------------------iye ha aam zindegi---------------------------------------------
import math
import random
import heapq, bisect
import sys
from collections import deque, defaultdict
from fract... | output | 1 | 31,217 | 12 | 62,435 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, but it turned out that you should follow some ru... | instruction | 0 | 31,218 | 12 | 62,436 |
Tags: brute force, constructive algorithms, data structures, greedy, implementation, sortings
Correct Solution:
```
import sys
input = lambda: sys.stdin.readline().rstrip("\r\n")
inp = lambda: list(map(int,sys.stdin.readline().rstrip("\r\n").split()))
mod = 10**9+7; Mod = 998244353; INF = float('inf')
#________________... | output | 1 | 31,218 | 12 | 62,437 |
Provide tags and a correct Python 3 solution for this coding contest problem.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, but it turned out that you should follow some ru... | instruction | 0 | 31,219 | 12 | 62,438 |
Tags: brute force, constructive algorithms, data structures, greedy, implementation, sortings
Correct Solution:
```
import sys
input = sys.stdin.readline
from collections import Counter
cnt = Counter()
for _ in range(int(input())):
n = int(input())
A = sorted(map(int, input().split()), reverse=True)
for k ... | output | 1 | 31,219 | 12 | 62,439 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, b... | instruction | 0 | 31,220 | 12 | 62,440 |
Yes | output | 1 | 31,220 | 12 | 62,441 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, b... | instruction | 0 | 31,221 | 12 | 62,442 |
Yes | output | 1 | 31,221 | 12 | 62,443 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, b... | instruction | 0 | 31,222 | 12 | 62,444 |
Yes | output | 1 | 31,222 | 12 | 62,445 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, b... | instruction | 0 | 31,223 | 12 | 62,446 |
Yes | output | 1 | 31,223 | 12 | 62,447 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, b... | instruction | 0 | 31,224 | 12 | 62,448 |
No | output | 1 | 31,224 | 12 | 62,449 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, b... | instruction | 0 | 31,225 | 12 | 62,450 |
No | output | 1 | 31,225 | 12 | 62,451 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, b... | instruction | 0 | 31,226 | 12 | 62,452 |
No | output | 1 | 31,226 | 12 | 62,453 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, b... | instruction | 0 | 31,227 | 12 | 62,454 |
No | output | 1 | 31,227 | 12 | 62,455 |
Evaluate the correctness of the submitted Python 2 solution to the coding contest problem. Provide a "Yes" or "No" response.
You found a useless array a of 2n positive integers. You have realized that you actually don't need this array, so you decided to throw out all elements of a.
It could have been an easy task, b... | instruction | 0 | 31,228 | 12 | 62,456 |
No | output | 1 | 31,228 | 12 | 62,457 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day shooshuns found a sequence of n integers, written on a blackboard. The shooshuns can perform one operation with it, the operation consists of two steps:
1. Find the number that goes k-th in the current sequence and add the same nu... | instruction | 0 | 31,258 | 12 | 62,516 |
Tags: brute force, implementation
Correct Solution:
```
n,k=map(int,input().split())
A=[int(x) for x in input().split()]
m=0
i=n-1
if len(set(A))==1:
print(0)
exit()
while(i>0 and A[i]==A[-1]):
i-=1
i+=1
if i<=k-1:
print(i)
else:
print(-1)
``` | output | 1 | 31,258 | 12 | 62,517 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day shooshuns found a sequence of n integers, written on a blackboard. The shooshuns can perform one operation with it, the operation consists of two steps:
1. Find the number that goes k-th in the current sequence and add the same nu... | instruction | 0 | 31,259 | 12 | 62,518 |
Tags: brute force, implementation
Correct Solution:
```
n, k = [int(x) for x in input().split()]
list1 = [int(x) for x in input().split()]
test_bool = False
if len(set(list1[k-1:]))>1:
print(-1)
elif k >= 2:
for i in range(k-2, -1, -1):
if list1[k-1] != list1[i]:
print(i+1)
test_... | output | 1 | 31,259 | 12 | 62,519 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day shooshuns found a sequence of n integers, written on a blackboard. The shooshuns can perform one operation with it, the operation consists of two steps:
1. Find the number that goes k-th in the current sequence and add the same nu... | instruction | 0 | 31,260 | 12 | 62,520 |
Tags: brute force, implementation
Correct Solution:
```
n,k = map(int,input().split())
l = list(map(int,input().split()))
x = l[n-1]
m = 0
for i in range(n-2,-1,-1):
if(l[i]!=x):
m = i+1
break
if(m>=k):
print("-1")
else:
print(m)
``` | output | 1 | 31,260 | 12 | 62,521 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day shooshuns found a sequence of n integers, written on a blackboard. The shooshuns can perform one operation with it, the operation consists of two steps:
1. Find the number that goes k-th in the current sequence and add the same nu... | instruction | 0 | 31,261 | 12 | 62,522 |
Tags: brute force, implementation
Correct Solution:
```
n, k = map(int, input().split())
arr = list(map(int, input().split()))
last_elem = arr[-1]
idx = -1
for i in range(n-1):
if arr[i] != last_elem:
idx = i
if idx+1 >= k:
print(-1)
else:
print(idx+1)
``` | output | 1 | 31,261 | 12 | 62,523 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day shooshuns found a sequence of n integers, written on a blackboard. The shooshuns can perform one operation with it, the operation consists of two steps:
1. Find the number that goes k-th in the current sequence and add the same nu... | instruction | 0 | 31,262 | 12 | 62,524 |
Tags: brute force, implementation
Correct Solution:
```
n,k=map(int,input().split())
a=[int(a) for a in input().split()]
v=k-1
for i in range(n-1,-1,-1):
if (a[i]!=a[k-1]):
v=i
break
if (v>k-1):
print (-1)
elif (v==k-1):
print (0)
else:
print (v+1)
``` | output | 1 | 31,262 | 12 | 62,525 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day shooshuns found a sequence of n integers, written on a blackboard. The shooshuns can perform one operation with it, the operation consists of two steps:
1. Find the number that goes k-th in the current sequence and add the same nu... | instruction | 0 | 31,263 | 12 | 62,526 |
Tags: brute force, implementation
Correct Solution:
```
n,k=(int(i) for i in input().split())
a=[int(i) for i in input().split()]
b=a[k-1:n]
if (b.count(b[0])==len(b)):
j=k-1
while(j>=0):
if (a[j]!=a[n-1]):
break
j=j-1
if (j<=k-1):
print(j+1)
else:
print(-1)
e... | output | 1 | 31,263 | 12 | 62,527 |
Provide tags and a correct Python 3 solution for this coding contest problem.
One day shooshuns found a sequence of n integers, written on a blackboard. The shooshuns can perform one operation with it, the operation consists of two steps:
1. Find the number that goes k-th in the current sequence and add the same nu... | instruction | 0 | 31,264 | 12 | 62,528 |
Tags: brute force, implementation
Correct Solution:
```
# recursion
# video 80
# maths
# question 70
from collections import deque
# d={"E":1}
def solve():
n,k=map(int,input().split())
d=list(map(int,input().split()))
if len(set(d[k-1:]))!=1:
print(-1)
return
store=-1
for i in range(... | output | 1 | 31,264 | 12 | 62,529 |
Evaluate the correctness of the submitted Python 3 solution to the coding contest problem. Provide a "Yes" or "No" response.
One day shooshuns found a sequence of n integers, written on a blackboard. The shooshuns can perform one operation with it, the operation consists of two steps:
1. Find the number that goes k... | instruction | 0 | 31,269 | 12 | 62,538 |
No | output | 1 | 31,269 | 12 | 62,539 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.