criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int odd_solve(lli x){
	return ((x/2) % 2) ^ 1;
}

int even_solve(lli x){
	if(x%2) return odd_solve(x);
	return odd_solve(x-1) ^ x;
}

int main(){
	lli a, b;
	cin >> a >> b;
	cout << even_solve(b) ^ even_solve(a-1);
	return 0;
}

Compiler output:
a.cc:7:15: error: 'lli' was not declared in this scope; did you mean 'll'?
    7 | int odd_solve(lli x){
      |               ^~~
      |               ll
a.cc:11:16: error: 'lli' was not declared in this scope; did you mean 'll'?
   11 | int even_solve(lli x){
      |                ^~~
      |                ll
a.cc: In function 'int main()':
a.cc:17:9: error: 'lli' was not declared in this scope; did you mean 'll'?
   17 |         lli a, b;
      |         ^~~
      |         ll
a.cc:18:16: error: 'a' was not declared in this scope
   18 |         cin >> a >> b;
      |                ^
a.cc:18:21: error: 'b' was not declared in this scope
   18 |         cin >> a >> b;
      |                     ^
a.cc:19:27: error: 'even_solve' cannot be used as a function
   19 |         cout << even_solve(b) ^ even_solve(a-1);
      |                 ~~~~~~~~~~^~~
a.cc:19:47: error: 'even_solve' cannot be used as a function
   19 |         cout << even_solve(b) ^ even_solve(a-1);
      |                                               ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, j, n) for (ll i = j; i < n; i++)
#define all(x) (x).begin(),(x).end()
#define INF (1000000000)
#define MOD (1000000007)
#define MAX (110)

/////////////////////////////////////////////////////////

ll mypow(ll a, ll b){
  if(b == 0) return 1;
  if(b == 1) return a;
  if(b % 2) return a * mypow(a, b - 1);
  ll tmp = mypow(a, b / 2);
  return tmp * tmp;
}

void Main() {
  ll A, B; cin >> A >> B;
  /*
  ll res = 0;
  rep(n, 0, 40){
    ll cnt = 0;
    
    res += mypow(2, n) * (cnt % 2);
  }
  */
  cout << A ^ (B - 1) << endl;
}

/////////////////////////////////////////////////////////

int main(){
  cin.tie(nullptr);
  ios_base::sync_with_stdio(false);
  //cout << std::fixed << std::setprecision(15);

  Main();
}


Compiler output:
a.cc: In function 'void Main()':
a.cc:30:23: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   30 |   cout << A ^ (B - 1) << endl;
      |               ~~~~~~~~^~~~~~~
Language: Java

package ABC121;

import java.util.Scanner;

public class D {

    public static void main(final String[] args) {
        final Scanner scanner = new Scanner(System.in);
        final long a = scanner.nextLong();
        final long b = scanner.nextLong();

        if(a == 0){
            System.out.println(get(b));
            return;
        }

        final long fa = get(a - 1);
        final long fb = get(b);
        System.out.println(fa ^ fb);
    }

    private static long get(final long a) {
        final long mod = a % 4;
        switch ((int) mod) {
            case 0:
                return a;
            case 1:
                return 1;
            case 2:
                return a ^ 1;
            case 3:
                return 0;
        }

        throw new RuntimeException();
    }
}


Compiler output:
Main.java:5: error: class D is public, should be declared in a file named D.java
public class D {
       ^
1 error
Language: Java


import java.util.Scanner;

public class D {

    public static void main(final String[] args) {
        final Scanner scanner = new Scanner(System.in);
        final long a = scanner.nextLong();
        final long b = scanner.nextLong();

        final long fa = get(a - 1);
        final long fb = get(b);
        System.out.println(fa ^ fb);
    }

    private static long get(final long a) {
        final long mod = a % 4;
        switch ((int) mod) {
            case 0:
                return a;
            case 1:
                return 1;
            case 2:
                return a ^ 1;
            case 3:
                return 0;
        }

        throw new RuntimeException();
    }
}


Compiler output:
Main.java:4: error: class D is public, should be declared in a file named D.java
public class D {
       ^
1 error
Language: Java

from collections import deque,defaultdict,Counter
from itertools import accumulate
import bisect
from heapq import heappop,heappush
from fractions import gcd
from copy import deepcopy
import math
Mod = 1000000007



def main(): #startline-------------------------------------------
    A,B = map(int,input().split())
    def modfour(i):
        return i % 4
    ans = 0
    if A % 2 == 0:
        for i in range(modfour(B-A+1)):
            ans ^= B-i
        print(ans)
    else:
        ans = A
        for i in range(modfour(B-A+1)+3):
            ans ^= B-i
        print(ans)
if __name__ == "__main__":
    main() #endline===============================================




def sieve_of_eratosthenes(n):
    if not isinstance(n,int):
        raise TypeError("n is not int")
    if n<2:
        raise ValueError("n < 2 is not effective")
    prime = [1]*(n+1)
    for i in range(2,int(math.sqrt(n))):
        if prime[i] == 1:
            for j in range(2*i,n):
                if j%i == 0:
                    prime[j] = 0
    res = []
    for i in range(2,n):
        if prime[i] == 1:
            res.append(i)
    return res

class UnionFind:
    def __init__(self,n):
        self.parent = [i for i in range(n+1)]
        self.rank = [0 for i in range(n+1)]
    
    def findroot(self,x):
        if x == self.parent[x]:
            return x
        else:
            y = self.parent[x]
            y = self.findroot(self.parent[x])
            return y
    
    def union(self,x,y):
        px = self.findroot(x)
        py = self.findroot(y)
        if px < py:
            self.parent[py] = px
        else:
            self.parent[px] = py

    def same_group_or_no(self,x,y):
        return self.findroot(x) == self.findroot(y)

Compiler output:
Main.java:1: error: class, interface, enum, or record expected
from collections import deque,defaultdict,Counter
^
Main.java:12: error: illegal character: '#'
def main(): #startline-------------------------------------------
            ^
Main.java:27: error: illegal character: '#'
    main() #endline===============================================
           ^
Main.java:49: error: '{' expected
class UnionFind:
               ^
Main.java:65: error: class, interface, enum, or record expected
        if px < py:
              ^
5 errors
Language: C++

#include <bits/stdc++.h>
using namespace std;

int f(int n) {
    switch(n % 4) {
        case 0:
            return 0;
        case 1:
            return n;
        case 2:
            return 1;
        case 3:
            return 1 ^ n;
    }
}

signed main() {
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    int A, B;
    cin >> A >> B;
    cout << f(A - 1) ^ f(B) << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:29: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   21 |     cout << f(A - 1) ^ f(B) << endl;
      |                        ~~~~~^~~~~~~
a.cc: In function 'int f(int)':
a.cc:15:1: warning: control reaches end of non-void function [-Wreturn-type]
   15 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
ll computeXOR(const ll n) 
{   
    switch(n % 4)  
    { 
      case 0: return n;     // if n is multiple of 4 
      case 1: return 1;     // If n % 4 gives remainder 1   
      case 2: return n + 1; // If n % 4 gives remainder 2     
      case 3: return 0;     // If n % 4 gives remainder 3   
    } 
} 

int main()
{
	ll A,B;
    cin >> A >> B;
    if(!A){
    	if(!B) cout << 0 << endl;
      	else cout << computeXOR(B) << endl;
    }else{
    	cout << computeXOR(B)^computeXOR(A-1) << endl;
    }
  	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:47: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   23 |         cout << computeXOR(B)^computeXOR(A-1) << endl;
      |                               ~~~~~~~~~~~~~~~~^~~~~~~
a.cc: In function 'll computeXOR(ll)':
a.cc:13:1: warning: control reaches end of non-void function [-Wreturn-type]
   13 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
ll computeXOR(const ll n) 
{   
    switch(n % 4)  
    { 
      case 0: return n;     // if n is multiple of 4 
      case 1: return 1;     // If n % 4 gives remainder 1   
      case 2: return n + 1; // If n % 4 gives remainder 2     
      case 3: return 0;     // If n % 4 gives remainder 3   
    } 
} 

int main()
{
	ll A,B;
    cin >> A >> B;
    if(!A){
    	if(!B) cout << 0 << endl;
      	else cout << computeXOR(B) << endl;
    }else{
    	cout << computeXor(B)^computeXor(A-1) << endl;
    }
  	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:17: error: 'computeXor' was not declared in this scope; did you mean 'computeXOR'?
   23 |         cout << computeXor(B)^computeXor(A-1) << endl;
      |                 ^~~~~~~~~~
      |                 computeXOR
a.cc: In function 'll computeXOR(ll)':
a.cc:13:1: warning: control reaches end of non-void function [-Wreturn-type]
   13 | }
      | ^
Language: C++

#include<iostream>
#include<vector>
#include<string>

using namespace std;

typedef long long ll;


int main(){
 ll A,B; cin >> A >> B; A--; 
  ll a,b;
  if( A % 4 == 1){
    a = 1;}
  else if( A % 4 == 3){
    a = 0;}
  else if( A % 4 == 2){
    a = ( A + 1) ^ 0;}
  else if( A % 4 == 0){
    a = (A + 1 ) ^ 1;}
  
  if( B % 4 == 1){
    b = 1;}
  else if( B % 4 == 3){
    b = 0;}
  else if( B % 4 == 2){
    b = ( B + 1) ^ 0;}
  else if( B % 4 == 0){
    b = ( B + 1) ^ 1;}
  
  cout << a^b << endl;
  return 0;}
  
    

    
  
  


Compiler output:
a.cc: In function 'int main()':
a.cc:31:15: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   31 |   cout << a^b << endl;
      |             ~~^~~~~~~
Language: C++

#include<bits/stdc++.h>
#define int long long
using namespace std;

int xor(int a){
	if(a%4 == 0)
      	return a;
  	if(a%4 == 1)
      	return 1;
 	if(a%4 ==2 )
      	return a+1;
 	if(a%4 == 3)
      	return 0;
}

int a,b;
int main(){
	cin >> a >> b;
  	cout<<xo(b)^xo(a-1);
}

Compiler output:
a.cc:5:5: error: expected unqualified-id before 'xor' token
    5 | int xor(int a){
      |     ^~~
cc1plus: error: '::main' must return 'int'
a.cc: In function 'int main()':
a.cc:19:15: error: 'xo' was not declared in this scope
   19 |         cout<<xo(b)^xo(a-1);
      |               ^~
Language: C++

#include "pch.h"
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
long long ret(vector<bool> da) {//2進法を変換
	long long ans=0,x=1;
	for(int i = 0;i < 40;i++){
		if (da[i])
			ans += x;
		x *= 2;
	}
	return ans;
}

vector<bool> mak(long long n) {//2進法に変換
	vector<bool> ans(40);
	for (int i = 0;i < 40;i++) {
		if (n % 2)
			ans[i] = true;
		else
			ans[i] = false;
		n /= 2;
	}
	return ans;
}

void su(vector<bool> &da) {
	bool x = (da[0] && !da[1]) || (!da[0] && da[1]);
	if (da[0]) {
		for (int i = 1;i < 40;i++) {
			da[i] = false;
		}
	}
	da[0] = x;
}

void ref(vector<bool> da) {//input
	bool x = false;
	for (int i = 39;i > -1;i--) {
		if (da[i])
			x = true;
		if (x) {
			if (da[i])
				cout << 1;
			else
				cout << 0;
		}
	}
	cout << endl;
}

int main() {
	long long a, b,g;
	cin >> a >> b;
	vector<bool> A(40,false), B(40,false), ans(40,false);
	if (a % 4 == 1) {
		A = mak(a - 1);
	}
	else if (a % 4 == 2)
		A[0] = true;
	else if(a%4==3){
		A = mak(a);
	}
	if (b % 4 == 0) {
		B = mak(b);
	}
	else if (b % 4 == 1)
		B[0] = true;
	else if (b % 4 == 2) {
		B = mak(b);
	}
	for (int i = 0;i < 40;i++) {
		ans[i] = A[i] ^ B[i];
	}
	cout << ret(ans) << endl;
}

Compiler output:
a.cc:1:10: fatal error: pch.h: No such file or directory
    1 | #include "pch.h"
      |          ^~~~~~~
compilation terminated.
Language: C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <math.h>

int max(long long int a) {
    long long int buf = 2;
    int count = 0;
    while (buf <= a) {
        buf *= 2;
        count++;
    }
    return count;
}

int main() {
    long long int a = 0, b = 0;
    scanf("%lld %lld", &a, &b);
    long long int ans = 0;
    int len = max(b);
    long long int com = (long long int)pow(2, len);
    long long int *a_2sin = (long long int *)malloc(sizeof(long long int)*(len+1));
    long long int buf = a;
    for (int i=0; i<len+1; i++) {
        if (com <= buf) {
            buf -= com;
            a_2sin[i] = 1;
        }
        else {
            a_2sin[i] = 0;
        }
        com = com / 2;
    }
    long long int *hoge = (long long int *)malloc(sizeof(long long int)*(len+2));
    hoge[len+1] = 0;
    for (int i=len; i>=0; i--) {
        hoge[i] = (long long int)(pow(2, len-i) * a_2sin[i]) + hoge[i+1];
    }
    com = (long long int)pow(2, len);
    for (int i=0; i<len+1; i++) {
        long long int count1 = 0;
        long long int hogehoge = hoge[i+1];
        long long int now = a;
        count1 = (com - hogehoge) * a_2sin[i];
        now += com - hogehoge - 1;
        if (now >= b) count1 = (b - a + 1) * a_2sin[i];
        else {
            int count2 = (b - now) / com;
            now += count2 * com;
            if (a_2sin[count] == 0) {
                if (count2 % 2 == 0) {
                    count1 += (count2 / 2) * com;
                    count1 += b - now;
                }
                else {
                    count1 += (count2 / 2 + 1) * com;
                }
            }
            else {
                if (count2 % 2 == 0) {
                    count1 += (count2 / 2) * com;
                }      
                else {
                    count1 += (count2 / 2) * com;
                    count1 += b - now;
                }
            }
        }
        ans += com * abs(count1 % 2);
        com = com / 2;
    }
    printf("%lld\n", ans);
    free(a_2sin);
    free(hoge);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:51:24: error: 'count' undeclared (first use in this function); did you mean 'count2'?
   51 |             if (a_2sin[count] == 0) {
      |                        ^~~~~
      |                        count2
main.c:51:24: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
long long int func(ll a){
  if(a % 4 == 3)return 0;
  else if(a % 4 == 0) return a;
  else if(a % 4 == 1) return 1;
  else if(a % 4 == 2) return a^1;
}
int main(){
  ll A,B;
  cin >> A >> B;
  A = max(0,A-1);
  ll ans = func(A)^func(B);
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:10: error: no matching function for call to 'max(int, ll)'
   13 |   A = max(0,A-1);
      |       ~~~^~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:13:10: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   13 |   A = max(0,A-1);
      |       ~~~^~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:13:10: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   13 |   A = max(0,A-1);
      |       ~~~^~~~~~~
a.cc: In function 'long long int func(ll)':
a.cc:9:1: warning: control reaches end of non-void function [-Wreturn-type]
    9 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
long long int func(ll a){
  if(a % 4 == 3)return 0;
  else if(a % 4 == 0) return a;
  else if(a % 4 == 1) return 1;
  else if(a % 4 == 2) return a^1;
}
int main(){
  ll A,B;
  cin >> A >> B;
  A = max(0,A-1)
  ll ans = func(A)^func(B);
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:10: error: no matching function for call to 'max(int, ll)'
   13 |   A = max(0,A-1)
      |       ~~~^~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:13:10: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   13 |   A = max(0,A-1)
      |       ~~~^~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:13:10: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   13 |   A = max(0,A-1)
      |       ~~~^~~~~~~
a.cc:15:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   15 |   cout << ans << endl;
      |           ^~~
      |           abs
a.cc: In function 'long long int func(ll)':
a.cc:9:1: warning: control reaches end of non-void function [-Wreturn-type]
    9 | }
      | ^
Language: C++

#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<map>
#include<set>
#include<complex>
#include<bitset>
#include<stack>
#include<unordered_map>
#include<utility>
using namespace std;
typedef long long ll;
typedef unsigned int ui;
const ll mod = 1000000007;
typedef long double ld;
const ll INF = 1e+14;
typedef pair<int, int> P;
#define stop char nyaa;cin>>nyaa;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
typedef complex<ld> Point;
const ld eps = 1e-8;
const ld pi = acos(-1.0);
typedef pair<ld, ld> LDP;
typedef pair<ll, ll> LP;
#define fr first
#define sc second

ll xor(ll x, ll y) {
  ll z = 0;
  rep(i, 60) {
      if((x & (1<<i)) || (y & (1<<i))) z |= (1<<i);
      if((x & (1<<i)) && (y & (1<<i))) z &= ~(1<<i);
  }
  return z;
}

ll g(ll x) {
  ll k = (x + 1) / 2;
  ll y = (k % 2 == 1 ? 1 : 0);
  if(x % 2 == 1) return y;
  else return xor(y, x);
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  ll A, B; cin >> A >> B;
  ll f = xor(g(A), g(B));
  cout << f << "\n";
  return 0;
}

Compiler output:
a.cc:41:4: error: expected unqualified-id before 'xor' token
   41 | ll xor(ll x, ll y) {
      |    ^~~
a.cc: In function 'll g(ll)':
a.cc:54:15: error: expected primary-expression before 'xor' token
   54 |   else return xor(y, x);
      |               ^~~
a.cc: In function 'int main()':
a.cc:61:10: error: expected primary-expression before 'xor' token
   61 |   ll f = xor(g(A), g(B));
      |          ^~~
Language: C++

#include<iostream>
#include<cstdlib>
#include<cstring>
#include<stack>
#include<queue>
#include<algorithm>
#include<vector>
using namespace std;

typedef stack<int> IntStack;
typedef queue<int> IntQueue;

/*ここまでテンプレ*/


/*ここからmain関数*/

int main()
{
	long long int A, B;
	cin >> A >> B;

	long long int S[50], T[50];

	//f(0,A-1)の計算
	if (A != 0)
	{
		long long int a = (A - 1) % 4;
		if (a == 0 || a == 3) S[0] = 0;
		if (a == 1 || a == 2) S[0] = 1;
	}
	else
		S[0] = 0;

	long long int now = 2;
	for (int i = 1; i < 50; i++)
	{
		long long int m = (A - 1) % (now * 2);
		if (m < now)
		{
			S[i] = 0;
		}
		else
		{
			if ((m - now + 1) % 2 == 0)
				S[i] = 0;
			else
				S[i] = 1;
		}

		now *= 2;
	}

	//f(0,B)の計算
	a = B % 4;
	if (a == 0 || a == 3) T[0] = 0;
	if (a == 1 || a == 2) T[0] = 1;

	now = 2;
	for (int i = 1; i < 50; i++)
	{
		long long int m = B % (now * 2);
		if (m < now)
		{
			T[i] = 0;
		}
		else
		{
			if ((m - now + 1) % 2 == 0)
				T[i] = 0;
			else
				T[i] = 1;
		}

		now *= 2;
	}

	//XOR
	long long int ans=0;
	now = 1;
	for (int i = 0; i < 50; i++)
	{
		if (S[i] != T[i])
			ans += now;

		now *= 2;
	}

	cout << ans;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:55:9: error: 'a' was not declared in this scope
   55 |         a = B % 4;
      |         ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main () {
  int A, B;
  cin >> A >> B;
  if(A != 0){
    A--;
    if(A % 2 == 0){
      A ^= 1;
    } else A ^= 0;
    if(B % 2 == 0){
      B ^= 1;
    } else B ^= 0;
    A ^= B
    cout << A << endl;
    return 0;
  } else {
    if(B % 2 == 0){
      B ^= 1;
    } else B ^= 0;
    cout << B << endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:11: error: expected ';' before 'cout'
   14 |     A ^= B
      |           ^
      |           ;
   15 |     cout << A << endl;
      |     ~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main () {
  int A, B;
  cin >> A >> B;
  if(A != 0){
    A--;
    if(A % 2 == 0){
      A ^= 1;
    } else A ^= 0;
    if(B % 2 == 0){
      B ^= 1;
    } else B ^= 0;
    cout << A ^ B << endl;
    return 0;
  } else {
    if(B % 2 == 0){
      B ^= 1;
    } else B ^= 0;
    cout << B << endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:19: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   14 |     cout << A ^ B << endl;
      |                 ~~^~~~~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <tuple>

using namespace std;

int main() {
    long A,B; cin >> A >> B;
    string A_bit = bitset<40>(A-1).to_string(), B_bit = bitset<40>(B).to_string();

    char A_xor, B_xor;
    string result_bit_str = "";
    for (int i=0; i<40; i++) {
        if (i==40-1) {
            A_xor = ( (char)A_bit[40-1] !=  (char)A_bit[40-2] ? '1' : '0' );
            B_xor = ( (char)B_bit[40-1] !=  (char)B_bit[40-2] ? '1' : '0' );
        } else {
            A_xor = ( (char)A_bit[i] == '1' and (char)A_bit[40-1] == '0' ? '1' : '0' );
            B_xor = ( (char)B_bit[i] == '1' and (char)B_bit[40-1] == '0' ? '1' : '0' );
        }
        result_bit_str += ( A_xor != B_xor ? '1' : '0' );
    }

    bitset<40> result_bit(result_bit_str);
    long result = result_bit.to_ulong();
    cout << result << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:20: error: 'bitset' was not declared in this scope
   10 |     string A_bit = bitset<40>(A-1).to_string(), B_bit = bitset<40>(B).to_string();
      |                    ^~~~~~
a.cc:4:1: note: 'std::bitset' is defined in header '<bitset>'; this is probably fixable by adding '#include <bitset>'
    3 | #include <vector>
  +++ |+#include <bitset>
    4 | #include <tuple>
a.cc:10:36: error: request for member 'to_string' in '(A - 1)', which is of non-class type 'long int'
   10 |     string A_bit = bitset<40>(A-1).to_string(), B_bit = bitset<40>(B).to_string();
      |                                    ^~~~~~~~~
a.cc:17:29: error: 'B_bit' was not declared in this scope; did you mean 'A_bit'?
   17 |             B_xor = ( (char)B_bit[40-1] !=  (char)B_bit[40-2] ? '1' : '0' );
      |                             ^~~~~
      |                             A_bit
a.cc:20:29: error: 'B_bit' was not declared in this scope; did you mean 'A_bit'?
   20 |             B_xor = ( (char)B_bit[i] == '1' and (char)B_bit[40-1] == '0' ? '1' : '0' );
      |                             ^~~~~
      |                             A_bit
a.cc:25:16: error: 'result_bit' was not declared in this scope; did you mean 'result_bit_str'?
   25 |     bitset<40> result_bit(result_bit_str);
      |                ^~~~~~~~~~
      |                result_bit_str
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long
ll f(ll n){ ll p=(n+1)/2; if(n%2==0){ if(p&1) return n^1; return n^0; else{ if(p&1) return 1;else return 0;}}
int main() {ll a,b; cin>>a>>b;  cout<<(f(a-1)^f(b));}

Compiler output:
a.cc: In function 'long long int f(long long int)':
a.cc:4:71: error: expected '}' before 'else'
    4 | ll f(ll n){ ll p=(n+1)/2; if(n%2==0){ if(p&1) return n^1; return n^0; else{ if(p&1) return 1;else return 0;}}
      |                                     ~                                 ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

ll single(ll X){
  if(X&1){return ((X+1)/2)&1;}
  else{return ((X/2)&1)^X;}
}

int main(){
  ll A,B;cin>>A>>B;
  if (A==0){cout << single(B) << endl;}
  else{cout << single(B)^single(A-1) << endl;}
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:38: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   13 |   else{cout << single(B)^single(A-1) << endl;}
      |                          ~~~~~~~~~~~~^~~~~~~
Language: C++

start,end = [int(x) for x in input().strip().split(" ")]

def get_nth_sum(n,x):
    if x < 0:
        return 0
    ret =x//(2**n)* (2**(n-1)) + max(0,x%(2**n) - 2**(n-1)+1 ) 
    return ret %2

ret = 0
for i in range(1,end):
    ret += 2**(i-1) * ((get_nth_sum(i,end) - get_nth_sum(i,start-1))%2)
    if 2 ** i > end:
        break
print(ret) 

Compiler output:
a.cc:1:1: error: 'start' does not name a type
    1 | start,end = [int(x) for x in input().strip().split(" ")]
      | ^~~~~
Language: C++

#include <iostream>

void main()
{
	long long a, b, r;

	std::cin >> a >> b;

	r = 0;

	for (long long i = a; i <= b; i++)
		r ^= i;

	std::cout << r << std::endl;
}

Compiler output:
a.cc:3:1: error: '::main' must return 'int'
    3 | void main()
      | ^~~~
Language: C++

#include <iostream>
#include <algorithm>
using namespace std ;
long long get_xorsum(long long l,long long r){
	l--;
	long long ans=0,b=2,l1,r1,d1;
	for(long long i=0;i<=60;i++){
		l1=(b/2)*(l/b)+max(0LL,l%b-b/2+1);
		r1=(b/2)*(r/b)+max(0LL,r%b-b/2+1);
		d1=r1-l1;
		if(d1&1)ans+=b/2;
		b<<=1;	
	}
	return ans;
}
int main(int argc, char *argv[]) {
	long long a,b,c;
	while(~scanf("%lld %lld",&a,&b)){
		//if(c&1)
			ans=get_xorsum(a,b);
		//else
			//ans=0;
		printf("%lld\n",ans);
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:20:25: error: 'ans' was not declared in this scope; did you mean 'abs'?
   20 |                         ans=get_xorsum(a,b);
      |                         ^~~
      |                         abs
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// スペース区切りの整数の入力(AとB)
		long A = sc.nextLong();
		long B = sc.nextLong();
      	long partA =0;
      	long partB =0;
      	long a = A-1;
      	// A-1=aの偶奇を判別
      if((a)%2==1){
        if(((a-1)/2)%2==0){
          partA=0;
        }else{
          partA=1;
        }
      }else{
        if(((a)/2)%2==0){
          partA=0^a
        }else{
          partA=1^(a)
        }
      }
      
      if((B)%2==1){
        if(((B-1)/2)%2==0){
          partB=0;
        }else{
          partB=1;
        }
      }else{
        if(((B)/2)%2==0){
          partB=0^B
        }else{
          partB=1^(B)
        }
      }  　
      	long answer =partA^partB;
        }
		System.out.println(answer);
	}
}
 

Compiler output:
Main.java:20: error: ';' expected
          partA=0^a
                   ^
Main.java:22: error: ';' expected
          partA=1^(a)
                     ^
Main.java:34: error: ';' expected
          partB=0^B
                   ^
Main.java:36: error: ';' expected
          partB=1^(B)
                     ^
Main.java:38: error: illegal character: '\u3000'
      }  ?
         ^
Main.java:41: error: <identifier> expected
		System.out.println(answer);
		                  ^
Main.java:41: error: <identifier> expected
		System.out.println(answer);
		                         ^
Main.java:43: error: class, interface, enum, or record expected
}
^
8 errors
Language: C++

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;

ll single(ll X){
  if(X&1){
    return ((X+1)>>1)&1;
  }
  else{
    return ((X>>1)&1)^X;
  }
}

int main(){
  ll A, B;cin>>A>>B;
  if (A==0){
    ll ans=single(B);
    cout MM ans<< endl;
  }
  else{
    ll ans=single(B)^single(A-1);
    cout << ans << endl;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:9: error: expected ';' before 'MM'
   19 |     cout MM ans<< endl;
      |         ^~~
      |         ;
Language: C++

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;

ll single(ll X){
  if(X%2==1){
    return ((X+1)/2)%2;
  }
  else{
    return ((X/2)%2)^X;
  }
}

int main(){
  ll A, B;cin>>A>>B;
  if (A==0){
    ll ans=single(B);
    cout << ans << endl;
  }
  else{
    ll ans=single(B)^single(A-1);
    cout << ans << endl;
  }
  return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:25:12: error: expected '}' at end of input
   25 |   return 0;
      |            ^
a.cc:15:11: note: to match this '{'
   15 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;


ll single(ll x){
  if (x%2){
    ll half=(x+1)/2;
    return half%2;
  }
  else{
    return single(x-1)^x;
  }
}

int main(){
  ll A, B;cin>>A>>B;
  ll xora_=single(A-1);
  ll xorb=single(B);
  cout << xora_^xorb <<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:22: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   20 |   cout << xora_^xorb <<endl;
      |                 ~~~~~^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;


ll single(ll X){
  ll ans=0;
  for (int i=0;i<100;i++){
    ans+=(X>>(100-i)&1);
    ans=ans<<1;
  }
  if ((X%4==1)||(X%4==2))){ans=ans^1;}
}

int main(){
  ll A, B; cin>>A>>B;
  ll a=single(A-1);
  ll b=single(B);
  ll ans=a^b;
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'll single(ll)':
a.cc:12:26: error: expected primary-expression before ')' token
   12 |   if ((X%4==1)||(X%4==2))){ans=ans^1;}
      |                          ^
a.cc:13:1: warning: no return statement in function returning non-void [-Wreturn-type]
   13 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

ll F(ll X){
  if (X%2==0){
    if (X%4==2){return X^1;}
    else{return X;}
  }
  else{
    if ((X-1)%4==2){return 0;}
    else{return 1;}
  }
}

int main(){
  ll A, B;cin>>A>>B;
  cout <<F(A)^F(B)<< endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:19: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   18 |   cout <<F(A)^F(B)<< endl;
      |               ~~~~^~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;

vi two_digit_transformer(ll X){
  int dig=0;
  while((ll)pow(2,dig)<X){
    dig++;
  }

  vi ans(dig+1);
  
  for (int i=0;i<=dig;++i){
    ans[i]=X%2;
    X/=2;
  }
  return ans;
}

int main(){
  ll A, B;cin>>A>>B;
  vi a=two_digit_transformer(A);
  vi b=two_digit_transformer(B);
  
  int N=B_list.size();

  vi ans(N);
  for (int i=0;i<N;i++){
    ans[i]=(a[i]*(a[0]+1)+b[i]*(b[0]+1))%2;
  }

  ll res=0;
  for (int i=0;i<N;i++){
    res+=ans[i];
    res=res<<2;
  }
  cout << res << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:9: error: 'B_list' was not declared in this scope; did you mean 'va_list'?
   26 |   int N=B_list.size();
      |         ^~~~~~
      |         va_list
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;

vi two_digit_transformer(ll X){
  int dig=0;
  while((ll)pow(2,dig)<X){
    dig++;
  }

  vi ans(dig+1);
  
  for (int i=0;i<=dig;++i){
    ans[i]=X%2;
    X/=2;
  }
  return ans;
}

int main(){
  ll A, B;cin>>A>>B;
  vi A_list=two_digit_transformer(A);
  vi B_list=two_digit_transformer(B);
  
  int N=B_list.size();

  vi ans(N);
  for (int i=0;i<N;i++){
    ans[i]=(a[i]*(a[0]+1)+b[i]*(b[0]+1))%2;
  }

  ll res=0;
  for (int i=0;i<N;i++){
    res+=ans[i];
    res=res<<2;
  }
  cout << res << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:13: error: 'a' was not declared in this scope
   30 |     ans[i]=(a[i]*(a[0]+1)+b[i]*(b[0]+1))%2;
      |             ^
a.cc:30:27: error: 'b' was not declared in this scope
   30 |     ans[i]=(a[i]*(a[0]+1)+b[i]*(b[0]+1))%2;
      |                           ^
Language: Java

import java.util.Scanner;

public class abc121_4 {
	public static final long x = 62L;
	public static final long one = 1L;

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		final long a = scanner.nextLong();
		final long b = scanner.nextLong();
		final long n = b - a + 1;
		long result = 0;
		for (int i = 0; i < x; i++) {
			long T = one << i + 1;
			long ra = a % T;
			long r = n % T;
			if (i == 0) {
				long ones = calcOnes(T, ra, r);
				ones += n / T;
				result = result ^ ((ones % 2) << i);
				continue;
			}
			long ones = calcOnes(T, ra, r);
			result ^= ((ones % 2) << i);
		}
		System.out.println(result);
		scanner.close();
	}

	public static long calcOnes(long T, long ra, long r) {
		long zero2ra = Math.max(0, ra - T/2);
		long zero2raPr;
		if(r + ra > T) {
			zero2raPr = T/2 + Math.max(0, (r + ra - T) - T/2);
		}else {
			zero2raPr = Math.max(0, ra + r - T/2);
		}
		long ones = zero2raPr - zero2ra;
		return ones;
	}
}


Compiler output:
Main.java:3: error: class abc121_4 is public, should be declared in a file named abc121_4.java
public class abc121_4 {
       ^
1 error
Language: Java

package abc;

import java.util.Scanner;

public class abc121_4 {
	public static final long x = 62L;
	public static final long one = 1L;

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		final long a = scanner.nextLong();
		final long b = scanner.nextLong();
		final long n = b - a + 1;
		long result = 0;
		for (int i = 0; i < x; i++) {
			long T = one << i + 1;
			long ra = a % T;
			long r = n % T;
			if (i == 0) {
				long ones = calcOnes(T, ra, r);
				ones += n / T;
				result = result ^ ((ones % 2) << i);
				continue;
			}
			long ones = calcOnes(T, ra, r);
			result ^= ((ones % 2) << i);
		}
		System.out.println(result);
		scanner.close();
//		long result = 0;
//		for(long i = a ; i <= b ; i ++) {
//			result = result ^ i;
//		}
//		System.out.println(result);
	}

	public static long calcOnes(long T, long ra, long r) {
		long zero2ra = Math.max(0, ra - T/2);//0到ra部分有多少个1
		long zero2raPr;//0到ra+r部分有多少个1
		if(r + ra > T) {
			zero2raPr = T/2 + Math.max(0, (r + ra - T) - T/2);
		}else {
			zero2raPr = Math.max(0, ra + r - T/2);
		}
		long ones = zero2raPr - zero2ra;
		return ones;
	}
}


Compiler output:
Main.java:5: error: class abc121_4 is public, should be declared in a file named abc121_4.java
public class abc121_4 {
       ^
1 error
Language: C++

#include<iostream>
#include<math.h>

using namespace std;

int binary(int bina){
    int ans = 0;
    for (int i = 0; bina>0 ; i++)
    {
        ans = ans+(bina%2)*pow(10,i);
        bina = bina/2;
    }
    return ans;
}

int main(){
    int n,s;
  cin>>n>>s;
  int m;
  int l[n-s+7];
  for(int i=n;i<=s){
  l[i]=i;
  }
  for(int i=n;i<=s){
  m^=l[i];
  }
  cout<<m<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:19: error: expected ';' before ')' token
   21 |   for(int i=n;i<=s){
      |                   ^
      |                   ;
a.cc:24:19: error: expected ';' before ')' token
   24 |   for(int i=n;i<=s){
      |                   ^
      |                   ;
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long long int llint;
#define MM 1000000000
#define MOD MM+7
#define MAX 101000
#define MAP 110
#define initial_value -1
#define Pair pair<int,int>
#define chmax(a,b) (a<b ? a=b:0)
#define chmin(a,b) (a>b ? a=b:0)
int dx[4] = {-1,0,1,0};
int dy[4] = {0,-1,0,1};
ll a,b;
long long clcu(ll n){
    if(n % 4 == 0) return n;
    if(n % 4 == 1) return 1;
    if(n % 4 == 2) return n+1;
    else return 0;
}
long long main(){
    cin >> a >> b;
    ll ans = clcu(b)-clcu(a-1);
    cout << ans << endl;
}

 

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

#include <iostream>
#include <cmath>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <string>
#include <map>
using namespace std;

long Xor(long x){
    long r=0;

    bitset<40> bs(x);

    r += (x+1) / 2 % 2;

    for(int i=1; i<40; i++){
        long pi;
        pi = (long)1 << i;

        long tmp = (x+1) % (pi * 2) - pi;

        if(tmp > 0){
            if (tmp % 2 == 1){
                r += pi;
            }
        }
    }
    return r;
}

int main() {
    // NOT AC
    long a, b, result;
    cin >> a >> b;

    result= Xor(a-1) ^ Xor(b);

    cout << result << endl;
}

Compiler output:
a.cc: In function 'long int Xor(long int)':
a.cc:13:5: error: 'bitset' was not declared in this scope
   13 |     bitset<40> bs(x);
      |     ^~~~~~
a.cc:8:1: note: 'std::bitset' is defined in header '<bitset>'; this is probably fixable by adding '#include <bitset>'
    7 | #include <map>
  +++ |+#include <bitset>
    8 | using namespace std;
a.cc:13:16: error: 'bs' was not declared in this scope; did you mean 'abs'?
   13 |     bitset<40> bs(x);
      |                ^~
      |                abs
Language: C++

A,B=map(int,input().split())
def calc(A):
    if A%4==0:
        return A
    elif A%4==1:
        return 1
    elif A%4==2:
        return A+1
    else:
        return 0
print(calc(A-1)^calc(B))


Compiler output:
a.cc:1:1: error: 'A' does not name a type
    1 | A,B=map(int,input().split())
      | ^
Language: C++


#include<bits/stdc++.h>
using namespace std;
#define inf 1000000000
#define INF 1000000000000000
#define ll long long
#define ull unsigned long long
#define M (int)(1e9+7)
#define P pair<int,int>
#define PLL pair<ll,ll>
#define FOR(i,m,n) for(int i=(int)m;i<(int)n;i++)
#define RFOR(i,m,n) for(int i=(int)m;i>=(int)n;i--)
#define rep(i,n) FOR(i,0,n)
#define rrep(i,n) RFOR(i,n,0)
#define all(a) a.begin(),a.end()
#define IN(a,n) rep(i,n){ cin>>a[i]; }
const int vx[4] = {0,1,0,-1};
const int vy[4] = {1,0,-1,0};
#define PI 3.14159265
#define F first
#define S second
#define PB push_back
#define EB emplace_back
void init(){
  cin.tie(0);
  ios::sync_with_stdio(false);
}

ll f(ll n){
  return x%4==0 ? n:n^f(n-1);
}

int main(){
  ll a,b;
  cin>>a>>b;

  if(a>0) a--;
  cout<<(f(a)^f(b))<<endl;
}


Compiler output:
a.cc: In function 'long long int f(long long int)':
a.cc:30:10: error: 'x' was not declared in this scope
   30 |   return x%4==0 ? n:n^f(n-1);
      |          ^
Language: C++

#include<bits/stdc++.h>
using namespace std;

long long f(long long n){
  if(n<=0)return 0;
  if(n%2==1)return ((n+1)/2)%2;
  return f(n-1)^n;
}

int main(){
  long long a,b;
  cin>>a>>b;
  
  cout<<f(a-1)^f(b)<<endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:20: error: invalid operands of types 'long long int' and '<unresolved overloaded function type>' to binary 'operator<<'
   14 |   cout<<f(a-1)^f(b)<<endl;
      |                ~~~~^~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;

int main(){
  unsigned long long int a,b,res=0;
  cin>>a>>b;
  
  if(a==b)return cout<<"0\n";
  
  for(int i=a;i<b;i++)res=res^i^(i+1);
  
  cout<<res<<endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:22: error: cannot convert 'std::basic_ostream<char>' to 'int' in return
    8 |   if(a==b)return cout<<"0\n";
      |                  ~~~~^~~~~~~
      |                      |
      |                      std::basic_ostream<char>
Language: C++

#include<iostream>
#include<cmath>
using namespace std;

long long XOR(x){
  int n;
  if(x<=0)return 0;
  for(int i=0;i<x;i++){
    if(pow(2,i)>x){
      n=i;
      break;
    }
  }
  int sum=0;
  for(int i=1;i<=n;i++){
    int temp=x%pow(2,i);
    if(temp-pow(2,i-1)>0){
      if(temp-pow(2,i-1)%2==1){
        sum+=pow(2,i-1);
      }
    }
  }
  return sum;
}


int main(){
  long long A,B;
  cin>>A>>B;
  if(A!=B){
    cout<<XOR(A-1)^XOR(B);
  }else{
    cout<<0;
  }
  return 0;
}
  

Compiler output:
a.cc:5:15: error: 'x' was not declared in this scope
    5 | long long XOR(x){
      |               ^
a.cc: In function 'int main()':
a.cc:31:14: error: 'XOR' cannot be used as a function
   31 |     cout<<XOR(A-1)^XOR(B);
      |           ~~~^~~~~
a.cc:31:23: error: 'XOR' cannot be used as a function
   31 |     cout<<XOR(A-1)^XOR(B);
      |                    ~~~^~~
Language: C++

#include <bits/stdc++.h>

typedef long long ll;

using namespace std;

ll xor(ll n) {
  
}

int main() {
  ll A, B;
  cin >> A >> B;
  
  ll a = 0;
  switch((A-1) & 3) {
      case 0: a = A;     
      case 1: a = 1;     
      case 2: a = A + 1;  
      case 3: a = 0; 
  }
  ll b = 0;
  switch(B & 3) {
      case 0: b = B;     
      case 1: b = 1;     
      case 2: b = B + 1;  
      case 3: b = 0; 
  }
  cout << b - a << endl;
  return 0;
}

Compiler output:
a.cc:7:4: error: expected unqualified-id before 'xor' token
    7 | ll xor(ll n) {
      |    ^~~
Language: C++


#include <iostream>

using namespace std;

int main () {
    long long A, B;
    long long ans = 0;
    
    cin >> A >> B;
    if (A%2) {
        ans ^= A-1;
        a--;
    }
    
    while ((B-A+1)%4!=0) {
        ans^=B+1;
        B++;
    }
    
    cout << ans;
    
}




Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: 'a' was not declared in this scope
   13 |         a--;
      |         ^
Language: Java

import java.util.*;
public class XORWorld {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long a = sc.nextLong();
		long b = sc.nextLong();
		long ans = 0;
		if (a == b) {
			ans = a;
		} else if (b - a < 5) {
			ans = a;
			for (long i = a; i < b - 1; i++) {
				ans = ans ^ (a + 1);
			}
			ans = ans ^ b;
		}
		else {
			if (a % 2 == 1) {
				ans = a ^ 0;
			}
			if (b % 2 == 0) {
				ans = ans ^ b;
			}
		}
		
		System.out.println(ans);

	}

}


Compiler output:
Main.java:2: error: class XORWorld is public, should be declared in a file named XORWorld.java
public class XORWorld {
       ^
1 error
Language: Java

import java.util.*;
import java.io.*;

public class test{



    public static void main(String[] args) {
        FastReader in = new FastReader();
        long a = in.nextLong(), b = in.nextLong(), ans = 0;
        while(a%2 == 1){
            ans^=(a-1);
            a--;
        }
        while((b-a)%4!=3){
            ans^=(b+1);
            b++;
        }
        System.out.println(ans);
    }

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
}

Compiler output:
Main.java:4: error: class test is public, should be declared in a file named test.java
public class test{
       ^
1 error
Language: C++

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
using namespace std;
typedef long long ll;
ll a;
ll b;
long long xor(long long x){
    if(x%4==0) return 0;
    else if(x%4==1) return  x;
    else if(x%4==2) return 1;
    else return x+1;
}

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    cin >> a>>b;
    cout<<xor(a-1)^xor(b)<<'\n';
}


Compiler output:
a.cc:23:11: error: expected unqualified-id before 'xor' token
   23 | long long xor(long long x){
      |           ^~~
a.cc: In function 'int main()':
a.cc:35:11: error: expected primary-expression before 'xor' token
   35 |     cout<<xor(a-1)^xor(b)<<'\n';
      |           ^~~
a.cc:35:20: error: expected primary-expression before 'xor' token
   35 |     cout<<xor(a-1)^xor(b)<<'\n';
      |                    ^~~