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

#include <iostream>
using namespace std;

using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
#include <string>
#include <cstdio>
#include <algorithm>
#include <vector>
#include <cmath>
#include <climits>
#include <bitset>
#include <array>
#include <deque>
#include <queue>
#include <map>
#include <set>
#define all(x) (x).begin(),(x).end()

const int MOD = 1e9 + 7;

void solve(){

}
long long getDigit(long long num){
    long long digit = 0;
    while(num != 0){
        num /= 10;
        ++digit;
    }
    return digit;
}
int main(){
    ll A,B;
    cin >> A >> B;

    int d = getDigit(B);
    ll ans = 0;
    for (int i = 0; i < d; ++i) {
        ll divide = 2 * pow(2,i);
        ll A_t = A % divide,B_t = B % divide;
        int t_num = A_t;
        for (ll k = A_t+1; k <= B_t; ++k) {
            t_num = t_num^k
        }
        if (t_num&(1<<i)){
            ans += pow(2,i);
        }
    }
    cout << ans << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:45:28: error: expected ';' before '}' token
   45 |             t_num = t_num^k
      |                            ^
      |                            ;
   46 |         }
      |         ~
Language: C++

#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <map>
using namespace std;
typedef long long ll;
long long f(long long a) {
     long long res[] = {a,1,a+1,0};
     return res[a%4];
}

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


Compiler output:
a.cc: In function 'int main()':
a.cc:19:14: error: no matching function for call to 'max(ll, int)'
   19 |         a=max(a-1,0);
      |           ~~~^~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 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:19:14: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   19 |         a=max(a-1,0);
      |           ~~~^~~~~~~
/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,
                 from a.cc:4:
/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:19:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   19 |         a=max(a-1,0);
      |           ~~~^~~~~~~
Language: C++

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

int main(){
    int i;
    long int a, b, n = 1, c=0, ans;
    cin >> a >> b;
    while(b > n){
        n *= 2;
        c++;
    }
    n /= 2;
    b -= a;
    while(b > 0){
        if(b/l == 0){
            ans += n;
        }else{
            b -= l;
        }
        l /= 2;
    }
    cout << ans;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:14: error: 'l' was not declared in this scope
   15 |         if(b/l == 0){
      |              ^
a.cc:20:9: error: 'l' was not declared in this scope
   20 |         l /= 2;
      |         ^
Language: C++

#include <vector>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <algorithm>
#include <numeric>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <functional>
#define _USE_MATH_DEFINES
#include <cmath>
#include <climits>
#include <cstdlib>
#include <cstring>
#include <cfloat>
#include <cmath>
#include <ctime>
#include <cstdio>
#include <cassert>
using namespace std;

#define EPS 1e-12
#define ull unsigned long long
#define ll long long
#define VI vector<ll>
#define PII pair<ll, ll> 
#define VVI vector<vector<ll> >
#define REP(i,n) for(int i=0,_n=(n);(i)<(int)_n;++i)
#define RANGE(i,a,b) for(int i=(int)a,_b=(int)(b);(i)<_b;++i)
#define FOR(i,c) for(__typeof((c).begin())i=(c).begin();i!=(c).end();++i)
#define ALL(c) (c).begin(), (c).end()
#define ALLR(c) (c).rbegin(), (c).rend()
#define PB push_back
#define MP(a, b) make_pair(a, b)
#define POPCOUNT __builtin_popcount
#define POPCOUNTLL __builtin_popcountll
#define CLEAR(table, v) memset(table, v, sizeof(table));
#define PRINT1(table, D0) REP(d0, D0) cout<<table[d0]<<" "; cout<<"\n";
#define PRINT2(table, D0, D1) REP(d0, D0) { REP(d1, D1) cout<<table[d0][d1]<<" "; cout<<"\n"; }
#define PRINT3(table, D0, D1, D2) REP(d0, D0) { REP(d1, D1) { REP(d2, D2) cout<<table[d0][d1][d2]<<" "; cout<<"\n"; } cout<<"\n"; }
#define UNIFORM_DOUBLE(a, b) (((b-a)*(double)rand()/RAND_MAX)+a) // [a, b) 
#define UNIFORM_LL(a, b) (ll)UNIFORM_DOUBLE(a, b) // [a, b) 
#define IN(v, lo, hi) ((lo)<=(v) && (v)<(hi))
#define DD(v) cout<<#v<<": "<<v<<endl
template <typename T0, typename T1> std::ostream& operator<<(std::ostream& os, const map<T0, T1>& v) { for( typename map<T0, T1>::const_iterator p = v.begin(); p!=v.end(); p++ ){os << p->first << ": " << p->second << " ";} return os; }
template <typename T0, typename T1> std::ostream& operator<<(std::ostream& os, const pair<T0, T1>& v) { os << v.first << ": " << v.second << " "; return os; }
template <typename T> std::ostream& operator<<(std::ostream& os, const vector<T>& v) { for( int i = 0; i < (int)v.size(); i++ ) { os << v[i] << " "; } return os; }
template <typename T> std::ostream& operator<<(std::ostream& os, const vector<vector<T> >& v) { for( int i = 0; i < (int)v.size(); i++ ) { os << v[i] << endl; } return os; }
template <typename T> std::ostream& operator<<(std::ostream& os, const set<T>& v) { vector<T> tmp(v.begin(), v.end()); os << tmp; return os; }
template <typename T> std::ostream& operator<<(std::ostream& os, const deque<T>& v) { vector<T> tmp(v.begin(), v.end()); os << tmp; return os; }

#define MOD 1000000007LL
#define INF (1LL<<60)
ll ff(ll v) {
	ll ans=0;
	for(ll i=1;i<=v;i++) ans^=i;
	return ans;
}

ll f(ll v) {
	if(v<10) return ff(v);
	ll a=1;
	while(v>a) a=a<<1;
	a>>=1;
	return (((v-a)&1) ? 0 : a) ^ f(v^a);
}
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	ll A,B;
	while(cin>>A>>B) {


		ans=f(B)^f(A-1);
	
cout<<ans<<endl;
		
		
	}
	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:76:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   76 |                 ans=f(B)^f(A-1);
      |                 ^~~
      |                 abs
Language: C++

#include <bits/stdc++.h>
#define ALL(v) v.begin(), v.end()
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
using namespace std;
typedef long long ll;

ll ruiz2(ll t){
  ll r=1;
  while(t>=1){
    r*=2;
    t--;}
  return r;}

ll nearl2(ll n,ll m){
  ll a=n/ruiz2(m);
  return n-ruiz2(m)*a;
}
  
  
ll nearb2(ll n,ll m){
  ll a=n/ruiz2(m);
  return ruiz2(m)*(a+1)-n;
}
  
  
ll log2(ll n){
  int re=0;
  int m=2;
  while(m<=n){
    m*=2;
   re++;}
  return re;
}
  
  bool lorb(ll t,ll p){
      ll v=ruiz2(p);
    v=v*(t/v);
    if(abs((t-v))<=abs((v+ruiz2(p)-t))) return true;
    else return false;
  }
    
    
  
  
int main() {
ll a,b; cin>>a>>b;
  ll keta[log2(b)+1]{0};
  if(a%2==1&&b%2==1)keta[0]=(b/2-a/2+1)%2;
  else if(a%2==0&&b%2=1)keta[0]=(b/2-a/2+1)%2;
  else keta[0]=(b/2-a/2)%2;
  
  ll k=2;
  while(k<=log2(b)){
    ll aq=0;
    if(!(lorb(a,k))){aq+=nearb2(ll a,ll k);}
    if(!(lorb(b,k))){aq+=nearb2(ll b,ll k);}
   keta[k-1]=aq%2;
}
  ll result=0;
  for(int i=0;i<log2(b)+1;i++){
    result+=ruiz2(i)*keta[i];}
  
  cout<<result<<endl;
    
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:49:17: error: lvalue required as left operand of assignment
   49 |   else if(a%2==0&&b%2=1)keta[0]=(b/2-a/2+1)%2;
      |           ~~~~~~^~~~~
a.cc:55:36: error: expected primary-expression before 'a'
   55 |     if(!(lorb(a,k))){aq+=nearb2(ll a,ll k);}
      |                                    ^
a.cc:55:41: error: expected primary-expression before 'k'
   55 |     if(!(lorb(a,k))){aq+=nearb2(ll a,ll k);}
      |                                         ^
a.cc:56:36: error: expected primary-expression before 'b'
   56 |     if(!(lorb(b,k))){aq+=nearb2(ll b,ll k);}
      |                                    ^
a.cc:56:41: error: expected primary-expression before 'k'
   56 |     if(!(lorb(b,k))){aq+=nearb2(ll b,ll k);}
      |                                         ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int A, B;
  cin >> A >> B;
  int; c, d;
  string a, b;
  while
    //わからん！！

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: declaration does not declare anything [-fpermissive]
    6 |   int; c, d;
      |   ^~~
a.cc:6:8: error: 'c' was not declared in this scope
    6 |   int; c, d;
      |        ^
a.cc:6:11: error: 'd' was not declared in this scope
    6 |   int; c, d;
      |           ^
a.cc:8:8: error: expected '(' at end of input
    8 |   while
      |        ^
      |        (
a.cc:8:8: error: expected primary-expression at end of input
a.cc:8:8: error: expected ')' at end of input
    8 |   while
      |        ^
      |        )
a.cc:8:8: error: expected statement at end of input
a.cc:8:8: error: expected '}' at end of input
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
//template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
//template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }



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

    ll fa, fb;
    for(ll i=0; i<40; i++){
        if((a&(1LL<<i)) != 0){
            if(i == 0) fa += 1;
            else{
                ll tmp = 0;
                for(ll j=0; j<i; j++){
                    if((a&(1LL<<j)) != 0) tmp += (1LL<<j);
                }
                if((tmp+1)%2 == 1) fa += 2LL<<i;
            }
        }
    }

    for(ll i=0; i<40; i++){
        if((a&(1LL<<i)) != 0){
            if(i == 0) fb += 1;
            else{
                ll tmp = 0;
                for(ll j=0; j<i; j++){
                    if((a&(1LL<<j)) != 0) tmp += (1LL<<j);
                }
                if((tmp+1)%2 == 1) fb += 2LL<<i;
            }
        }
    }

    cout << fa^fb << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:19: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   39 |     cout << fa^fb << endl;
      |                ~~~^~~~~~~
Language: C++

#include <bits/stdc++.h>
#define ALL(v) v.begin(), v.end()
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
using namespace std;
typedef long long ll;

ll ruiz2(ll t){
  ll r=1;
  while(t>=1){
    r*=2;
    t--;
  return r}
  


ll nearl2(ll n,ll m){
  ll a=n/ruiz2(m);
  return n-ruiz2(m)*a;
}
  
  
ll nearb2(ll n,ll m){
  ll a=n/ruiz2(m);
  return ruiz2(m)*(a+1)-n;
}
  
  
ll log2(ll n){
  int re=0;
  int m=2;
  while(m<=n){
    m*=2;
   re++;}
  return re;
}
  
  bool lorb(ll t,ll p){
      ll v=ruiz2(p);
    v=v*(t/v);
    if(abs((t-v))<=abs((v+ruiz2(p)-t))) return true;
    else return false;
  }
    
    
  
  
int main() {
ll a,b; cin>>a>>b;
  ll keta[log2(b)+1]{0};
  if(a%==1&&b%==1)keta[0]=(b/2-a/2+1)%2;
  else if(a%==0&&b%=1)keta[0]=(b/2-a/2+1)%2;
  else keta[0]=(b/2-a/2)%2;
  
  ll k=2;
  while(k<=log2(b)){
    ll aq=0;
    if(!(lorb(a,k))){aq+=nearb2(ll a,ll k);}
    if(!(lorb(b,k))){aq+=nearb2(ll b,ll k);}
   keta[k-1]=aq%2;
}
  ll result=0;
  for(int i=0;i<log2(b)+1;i++){
    result+=ruiz2(i)*keta[i];}
  
  cout<<result<<endl;
    
  
}

Compiler output:
a.cc: In function 'll ruiz2(ll)':
a.cc:12:11: error: expected ';' before '}' token
   12 |   return r}
      |           ^
      |           ;
a.cc:16:21: error: a function-definition is not allowed here before '{' token
   16 | ll nearl2(ll n,ll m){
      |                     ^
a.cc:22:21: error: a function-definition is not allowed here before '{' token
   22 | ll nearb2(ll n,ll m){
      |                     ^
a.cc:28:14: error: a function-definition is not allowed here before '{' token
   28 | ll log2(ll n){
      |              ^
a.cc:37:23: error: a function-definition is not allowed here before '{' token
   37 |   bool lorb(ll t,ll p){
      |                       ^
a.cc:47:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   47 | int main() {
      |         ^~
a.cc:47:9: note: remove parentheses to default-initialize a variable
   47 | int main() {
      |         ^~
      |         --
a.cc:47:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:47:12: error: a function-definition is not allowed here before '{' token
   47 | int main() {
      |            ^
a.cc:68:2: error: expected '}' at end of input
   68 | }
      |  ^
a.cc:7:15: note: to match this '{'
    7 | ll ruiz2(ll t){
      |               ^
a.cc:68:2: warning: control reaches end of non-void function [-Wreturn-type]
   68 | }
      |  ^
Language: C++

#include <iostream>
#include <cmath>
#include <algorithm>
#include <stdio.h>
#include <sstream>
using namespace std;

int bit(int n){
  bool plus = true;
  int i=1;
  while(plus){
    if(n >= pow(2, i)) i++;
    else plus = false;
  }
  int num_2, num;
  num = n;
  num_2 = 0;
  while(i>=0){
    if(num >= pow(2, i)){
      num_2 += pow(10, i);
      num -= pow(2, i);
    }
    i--;
  }
  return num_2;
}

int main(){
int a, b;
cin >> a >> b;
int a_2, b_2;
a_2 = bit(a);
b_2 = bit(b);
char s_a, s_b;
s_a = oss.str(b_2);
s_b = oss.str(b_2);
int a_max = s_a.size();
int b_max = s_b.size();
//int s_a[a_max], s_b[b_max];
//for(int i=0; i<a_max; i++){

//}
//s_a = "ww";
int max_i = max(a_max, b_max);
int min_i = min(a_max, b_max); //s_a, s_b
for(int j=min_i; j<max_i; j++){
  if(s_a.size() > s_b.size()){
    for(int k=min_i; k< max_i; k++) cout << a_2[k];
  }
  else{
    for(int k=min_i; k< max_i; k++) cout << b_2[k];
  }
}
int i = min_i -1;
while(i>0){
  if(s_a[i] != s_b[i]) cout << 1;
  else cout << 0;
}
if(s_a[0] == s_b[0]) cout << 0 <<endl;
else cout << 1 << endl;


return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:35:7: error: 'oss' was not declared in this scope
   35 | s_a = oss.str(b_2);
      |       ^~~
a.cc:37:17: error: request for member 'size' in 's_a', which is of non-class type 'char'
   37 | int a_max = s_a.size();
      |                 ^~~~
a.cc:38:17: error: request for member 'size' in 's_b', which is of non-class type 'char'
   38 | int b_max = s_b.size();
      |                 ^~~~
a.cc:47:10: error: request for member 'size' in 's_a', which is of non-class type 'char'
   47 |   if(s_a.size() > s_b.size()){
      |          ^~~~
a.cc:47:23: error: request for member 'size' in 's_b', which is of non-class type 'char'
   47 |   if(s_a.size() > s_b.size()){
      |                       ^~~~
a.cc:48:48: error: invalid types 'int[int]' for array subscript
   48 |     for(int k=min_i; k< max_i; k++) cout << a_2[k];
      |                                                ^
a.cc:51:48: error: invalid types 'int[int]' for array subscript
   51 |     for(int k=min_i; k< max_i; k++) cout << b_2[k];
      |                                                ^
a.cc:56:9: error: invalid types 'char[int]' for array subscript
   56 |   if(s_a[i] != s_b[i]) cout << 1;
      |         ^
a.cc:56:19: error: invalid types 'char[int]' for array subscript
   56 |   if(s_a[i] != s_b[i]) cout << 1;
      |                   ^
a.cc:59:7: error: invalid types 'char[int]' for array subscript
   59 | if(s_a[0] == s_b[0]) cout << 0 <<endl;
      |       ^
a.cc:59:17: error: invalid types 'char[int]' for array subscript
   59 | if(s_a[0] == s_b[0]) cout << 0 <<endl;
      |                 ^
Language: C++

#include <iostream>
#include <algorithm>
#include <cmath>
#include <limits>
#include <vector>
#include <cstdio>
#include <bits/stdc++.h>
#include <set>
#include <map>
#include <stdio.h>
#include <stack>
#include <queue>
#include <deque>
#include <numeric>
#include <bits/stdc++.h>
#include <utility>
#include <iomanip>

#define ALL(obj) (obj).begin(), (obj).end()
#define FOR(i,a,b) for(int i = (a); i < (b); i++)
#define RFOR(i,a,b) for(int i = (a); (b) <= i; i--)
#define REP(i,n) for(int i = 0; i < (n); i++)
#define RREP(i,n) for(int i = n; n <= i; i--)
#define ABS(a) ((a < 0) ? ((-1)*(a)) : (a))
#define elif else if
#define MOD 1000000007
#define INF (1<<30)

using namespace std;

#define ld long double
#define ll long long

map <int ,int> mpa,mpb;
typedef pair<ll, ll> P;
priority_queue<P, vector<P>, greater<P>> pque;

int main(){
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  ll A,B;
  ll ans=0;
  cin >> A >> B;
  if(A==B){
    cout << A << endl;
    return 0;
  }

  for(ll i=12;i>=0;i--){
    ll x=(1LL<<i);
    if(A<x)continue;
    if(x<A && (x-A)%2==1){
      ans+=x;
    }
  }
  ll anss=0;
  for(ll i=12;i>=0;i--){
    ll x=(1LL<<i);
    if(B<x)continue;
    if(x<B && (x-B)%2==1){
      anss+=x;
    }
  }
  cout << ans^anss << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:64:20: error: invalid operands of types 'long long int' and '<unresolved overloaded function type>' to binary 'operator<<'
   64 |   cout << ans^anss << endl;
      |               ~~~~~^~~~~~~
Language: C++

#include <iostream>
#include <string>
#include <set>
#include <map>
#include <vector>
#include <queue>
#include <algorithm>
#include <bitset>
#include <cstdlib>
#include <cmath>
#define INF 100000000
#define ll long long int
using namespace std;




int main(){
  ll A,B; cin>>A>>B;
  A = A-1>0 ? A-1 : 0;
   ll diviser = 2;
   ll ans = 0;
   // 1 -- A と 1-- B に 分けて　偶奇を管理する
   bool evenA;
   bool evenB;
  
  while(diviser < 4 * B){

    evenA = ((A)%diviser < diviser/2) or ((A+1)%2 == 0);
    evenB = ((Bs)%diviser < diviser/2) or ((B+1)%2 == 0);
    if(diviser ==2){
      evenA = A%4==0 or A%4==3;
      evenB = B%2==0 or B%4==3;
    }

    if((evenA ==true and evenB == true) or(evenA ==false and evenB == false)){
      //ans += diviser / 2;

    } else {
      ans += diviser / 2;
    }
    //cout<<evenA <<"   " << evenB <<endl;

    diviser = diviser*2;
  }

  cout<<ans<<endl;



return 0;


}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:15: error: 'Bs' was not declared in this scope; did you mean 'B'?
   30 |     evenB = ((Bs)%diviser < diviser/2) or ((B+1)%2 == 0);
      |               ^~
      |               B
Language: C++

#include <iostream>
#include <cstdio>

using namespace std;

long long calc(long long x) {
	long long ret = 0;

	for (int i = 39; i > 0; i--) {
		long long mask = 1LL << i;
		if ((x & mask) && (x % 2 == 0)) {
			ret |= mask;
		}
	}
	if (x % 4 == 1 || x % 4 == 2) {
		ret |= 1;
	}
	return ret;
}

long long calc2(long long x) {
	long long ret = 0;
	for (long long i = 0; i <= x; i++) {
		ret ^= i;
	}
	return ret;

}

int main() {
	long long a, b;

	// cin >> a;
	// for (int i = 0; i <= a; i++) {
	// 	auto ret1 = calc(i);
	// 	auto ret2 = calc2(i);
	// 	printf("%3d: %4lld %4lld\n", i, ret1, ret2);
	// }
	// return 0;

	cin >> a >> b;
	if (a == 0) {
		cout << b << endl;
		return 0;
	}


	long long ans = calc(a - 1) ^ calc(b);
	cout << ans << endl;
	return 0;
}
#include <iostream>
#include <cstdio>

using namespace std;

long long calc(long long x) {
	long long ret = 0;

	for (int i = 39; i > 0; i--) {
		long long mask = 1LL << i;
		if ((x & mask) && (x % 2 == 0)) {
			ret |= mask;
		}
	}
	if (x % 4 == 1 || x % 4 == 2) {
		ret |= 1;
	}
	return ret;
}

long long calc2(long long x) {
	long long ret = 0;
	for (long long i = 0; i <= x; i++) {
		ret ^= i;
	}
	return ret;

}

int main() {
	long long a, b;

	// cin >> a;
	// for (int i = 0; i <= a; i++) {
	// 	auto ret1 = calc(i);
	// 	auto ret2 = calc2(i);
	// 	printf("%3d: %4lld %4lld\n", i, ret1, ret2);
	// }
	// return 0;

	cin >> a >> b;
	if (a == 0) {
		cout << b << endl;
		return 0;
	}


	long long ans = calc(a - 1) ^ calc(b);
	cout << ans << endl;
	return 0;
}


Compiler output:
a.cc:57:11: error: redefinition of 'long long int calc(long long int)'
   57 | long long calc(long long x) {
      |           ^~~~
a.cc:6:11: note: 'long long int calc(long long int)' previously defined here
    6 | long long calc(long long x) {
      |           ^~~~
a.cc:72:11: error: redefinition of 'long long int calc2(long long int)'
   72 | long long calc2(long long x) {
      |           ^~~~~
a.cc:21:11: note: 'long long int calc2(long long int)' previously defined here
   21 | long long calc2(long long x) {
      |           ^~~~~
a.cc:81:5: error: redefinition of 'int main()'
   81 | int main() {
      |     ^~~~
a.cc:30:5: note: 'int main()' previously defined here
   30 | int main() {
      |     ^~~~
Language: C++

#include<cstdio>
typedef long long ll;
ll f(ll x){
  if(x<0)return 0;
  return ((x%2==0)?x:0)+((x%4==1||x%4==2)?1:0);
int main(){
  long long a,b;
  scanf("%lld%lld",&a,&b);
  printf("%lld",f(a-1)^f(b));
  return 0;
}

Compiler output:
a.cc: In function 'll f(ll)':
a.cc:6:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
    6 | int main(){
      |         ^~
a.cc:6:9: note: remove parentheses to default-initialize a variable
    6 | int main(){
      |         ^~
      |         --
a.cc:6:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:6:11: error: a function-definition is not allowed here before '{' token
    6 | int main(){
      |           ^
a.cc:11:2: error: expected '}' at end of input
   11 | }
      |  ^
a.cc:3:11: note: to match this '{'
    3 | ll f(ll x){
      |           ^
Language: C++

#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstdlib>
#include<vector>
#include<map>
#include<queue>
#include<string>
#include<numeric>
#include<sstream>
#include<cmath>
using namespace std;

int main(){

  long long int a, b; cin >> a >> b;
  a--;
  a = max(0L, a);

  vector<long long int> z;
  z.push_back(0);
  if(a%2 == 1) {
    if(a%4 == 1) z.push_back(1);
  }else{
    if(a%4 == 2) z.push_back(1);
    z.push_back(a);
  }
  if(b%2 == 1) {
    if(b%4 == 1) z.push_back(1);
  }else{
    if(b%4 == 2) z.push_back(1);
    z.push_back(b);
  }

  long long int ans = z[0];
  for(int i=1; i<z.size(); i++){
    ans = (ans ^ z[i]);
  }
  cout << ans << endl;

  return 0;
}


//


Compiler output:
a.cc: In function 'int main()':
a.cc:18:10: error: no matching function for call to 'max(long int, long long int&)'
   18 |   a = max(0L, a);
      |       ~~~^~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 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:18:10: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'long long int')
   18 |   a = max(0L, a);
      |       ~~~^~~~~~~
/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,
                 from a.cc:2:
/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:18:10: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
   18 |   a = max(0L, a);
      |       ~~~^~~~~~~
Language: C++

#include <iostream>
#include <array>
#include <vector>
#include <iomanip>
#include <string>
#include <cmath>
#include <algorithm>
#include <queue>
#include <map>
#include <set>

using namespace std;

typedef long long LL;
typedef vector<LL> VEC;
typedef vector<VEC> VVEC;
typedef  pair<LL,LL> P;


const LL INF=1<<30;
const LL MOD=1000000007;


LL ruijo(int n){
    LL ans2=1;
    for(int i=0;i<n;++i){
        ans2*=2;
    }
    return ans2;
}


int main(){
    LL a,b;
    cin>>a>>b;
    cout<<a^b<<endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:36:14: error: invalid operands of types 'LL' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   36 |     cout<<a^b<<endl;
      |             ~^~~~~~
Language: C++

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

int main(){
    int l = 2, n = 0, m = 0;
    long int a, b, c, d, s = 0;
    cin >> a >> b;
    if(a%4 == b%4 && a%2 != ){
        
    }
    while(b > l){
        c = a%l;
        d = b%l;
        if(c > l/2){
            c -= l/2;
        }
        if(d > l/2){
            d -= l/2;
        }
        n = (c-d+1)%2;
        s += n*l;
        l *= 2;
    }
    cout << s;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:29: error: expected primary-expression before ')' token
    8 |     if(a%4 == b%4 && a%2 != ){
      |                             ^
Language: C++

#include <bits/stdc++.h>

#define fi first
#define se second

using namespace std;
typedef long long ll;
typedef pair <ll, ll> pii;

const ll D = 100007;

ll f(ll x)
{
    if (x % 4 == 3)
        return 0;
    if (x % 4 == 0)
        return x;
    if (x % 4 == 1)
        return 1;
    if (x % 4 == 2)
        return 1 ^ x;
}

int main()
{
    ll a, b;
    cin >> a >> b;
    if (a == 0)
        cout << f(b) << endl, amen;
    cout << (f(b) ^ f(a - 1)) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:31: error: 'amen' was not declared in this scope
   29 |         cout << f(b) << endl, amen;
      |                               ^~~~
a.cc: In function 'll f(ll)':
a.cc:22:1: warning: control reaches end of non-void function [-Wreturn-type]
   22 | }
      | ^
Language: Java

#include<bits/stdc++.h> 

using namespace std;
long long f(long long a) {
     long long res[] = {a,1,a+1,0};
     return res[a%4];
}

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

Compiler output:
Main.java:1: error: illegal character: '#'
#include<bits/stdc++.h> 
^
Main.java:1: error: class, interface, enum, or record expected
#include<bits/stdc++.h> 
        ^
Main.java:4: error: class, interface, enum, or record expected
long long f(long long a) {
^
Main.java:6: error: class, interface, enum, or record expected
     return res[a%4];
     ^
Main.java:7: error: class, interface, enum, or record expected
}
^
Main.java:11: error: class, interface, enum, or record expected
}
^
Main.java:15: error: class, interface, enum, or record expected
	cin >> a >> b;
	^
Main.java:16: error: class, interface, enum, or record expected
	cout << getXor(a,b) << endl;
	^
Main.java:17: error: class, interface, enum, or record expected
    return 0;
    ^
Main.java:18: error: class, interface, enum, or record expected
} 
^
10 errors
Language: Java

import java.util.Scanner;
class Main{
  public static void main(String args[]){
    Scanner scan=new Scanner(System.in);
    int a=scan.nextInt();
    int b=scan.nextInt();
    System.out.println(func(b)^(~func(a-1)));
  }
  public static int func(int n){
    if(n<0) return 0;
    if(n>=0){
      if(n%4==0){
        return 0;
      }else if(n%4==1){
        return n;
      }else if(n%4==2){
        return 1;
      }else{
        return n^1;
      }
    }
  }
}


Compiler output:
Main.java:22: error: missing return statement
  }
  ^
1 error
Language: Java

import java.util.Scanner;
class Main{
  public static void main(String args[]){
    Scanner scan=new Scanner(System.in);
    int a=scan.nextInt();
    int b=scan.nextInt();
    System.out.println(func(b)^(~func(a-1)));
  }
  
    public static int func(int n){
      if(n<0) return 0;
      if(n>=0){
        if(n%4==0){
          return 0;
        }else if(n%4==1){
          return n;
        }else if(n%4==2){
          return 1;
        }else{
          return n^1;
        }
      }
    }
}


Compiler output:
Main.java:23: error: missing return statement
    }
    ^
1 error
Language: Java

	public static void main(String[] args) {
//		{
//			Scanner in = new Scanner(System.in);
//			long a = in.nextLong();
//			long b = in.nextLong();
//			long ret = 0;
//			for (long i = a; i <= b; i++) {
//				ret ^= i;
//			}
//			System.out.println(ret);
//		}
		{
			Scanner in = new Scanner(System.in);
			long a = in.nextLong();
			long b = in.nextLong();
			long ret = 0;
			{
				long count = (b - a + 1) % 4;
				for (long i = a; i < count; i++) {
					ret ^= i & 1;
				}
			}
			int p = 2;
			while (b >= p) {
				long count = (b - a + 1) % p;
				for (long i = a; i < count; i++) {
					ret ^= i & p;
				}
				p *= 2;
			}
			System.out.println(ret);
		}
	}
}


Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
	public static void main(String[] args) {
	              ^
  (use --enable-preview to enable unnamed classes)
Main.java:34: error: class, interface, enum, or record expected
}
^
2 errors
Language: C++

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

int main()
{
    ll a,b;
    cin>>a>>b;
    //cout<<(b-a)/2<<endl;
    if(a==b)
    {
        cout<<0<<endl;
        return;
    }
    if(a%2==0&&b%2==0)
    {
        if(((b-a)/2)%2==0)
            cout<<b<<endl;
        else cout<<(b^1)<<endl;
    }
    else if(a%2==0&&b%2!=0)
    {
        if(((b-a+1)/2)%2==0)
            cout<<0<<endl;
        else cout<<1<<endl;
    }
    else if(a%2!=0&&b%2==0)
    {
        if(((b-a)/2)%2==0)
            cout<<(a^b)<<endl;
        else cout<<(a^b^1)<<endl;
    }
    else if(a%2!=0&&b%2!=0)
    {
        if(((b-a)/2)%2==0)
            cout<<a<<endl;
        else cout<<(a^1)<<endl;
    }
    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   13 |         return;
      |         ^~~~~~
Language: Java

import java.util.Scanner;
class Main{
  public static void main(String args[]){
    Scanner scan=new Scanner(System.in);
    int a=scan.nextInt();
    int b=scan.nextInt();
    System.out.println(f(b)^(~f(a-1)));
  }
  
    public static int func(int n){
      if(n<0) return 0;
      if(n>=0){
        if(n%4==0){
          return 0;
        }else if(n%4==1){
          return n;
        }else if(n%4==2){
          return 1;
        }else{
          return n^1;
        }
      }
    }
}


Compiler output:
Main.java:7: error: cannot find symbol
    System.out.println(f(b)^(~f(a-1)));
                       ^
  symbol:   method f(int)
  location: class Main
Main.java:7: error: cannot find symbol
    System.out.println(f(b)^(~f(a-1)));
                              ^
  symbol:   method f(int)
  location: class Main
2 errors
Language: Java

import java.util.Scanner;
class Main{
  public static void main(String args[]){
    Scanner scan=new Scanner(System.in);
    int a=scan.nextInt();
    int b=scan.nextInt();
    public static int func(int n){
      if(n<0) return 0;
      if(n>=0){
        if(n%4==0){
          return 0;
        }else if(n%4==1){
          return n;
        }else if(n%4==2){
          return 1;
        }else{
          return n^1;
        }
      }
    }
    System.out.println(f(b)^(~f(a-1)));
  }
}

Compiler output:
Main.java:7: error: illegal start of expression
    public static int func(int n){
    ^
Main.java:21: error: <identifier> expected
    System.out.println(f(b)^(~f(a-1)));
                      ^
Main.java:21: error: <identifier> expected
    System.out.println(f(b)^(~f(a-1)));
                        ^
Main.java:23: error: class, interface, enum, or record expected
}
^
4 errors
Language: C++

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

using namespace std;

int main(){
  long int A,B,ans;
  long int k=1;
  long int l=1;
  cin>>A>>B;
  long AA=1000000000000;
  long BB=1000000000000;
  for(int i=1; i<41; ++i){
    if(AA>abs(A-k)) AA=k;
    k*=2;
  }
  for(int i=1; i<41; ++i){
    if(BB>abs(B-l)) BB=l;
    l*=2;
  }
  long int S,T,U,V;
  if(AA>A){
    S=A+1;
    T=AA;
  }
  else{
    S=AA;
    T=A-1;
  }
  if(BB>B){
    U=B+1;
    V=BB;
  }
  else{
    U=BB;
    V=B-1;
  }
  vector<int> W;
  vector<int> R;
  for(int i=S; i<=T; ++i) W.push_back(i);
  for(int i=U; i<=V; ++i) R.push_back(i);
  long int P=0;
  long int Q=0;
  for(int i=S; i<=T; ++i){
    P ^= i;
  }
  for(int i=U; i<=V; ++i){
    Q ^= i;
  }
  cout<<P^Q<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:52:12: error: invalid operands of types 'long int' and '<unresolved overloaded function type>' to binary 'operator<<'
   52 |   cout<<P^Q<<endl;
      |           ~^~~~~~
Language: C++

#include <cstdio>
#include <climits>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <queue>
#include <deque>
#include <stack>
#include <map>
#include <list>
#include <set>
#include <bitset>
#include <iterator>
#define rep(i, n) for(long long i = 0; i < (long long)(n); i++)
using namespace std;
typedef long long int LL;
typedef unsigned long long int ULL;

int main() {
    ULL a, b;
    cin >> a >> b;
    ULL res = 0;
    if (a == b) {
        cout << a << endl;
    } else if ((a - b) % 2 == 0) {
        assert(false);
        res = (a ^ b) - 1;
        cout << res << endl;
    } else {
        res = a ^ b;
        cout << res << endl;
    }
    // for (ULL i = a + 1; i <= b; i++) {
    //     res = res ^ i;
    // }
    // cout << res << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:9: error: 'assert' was not declared in this scope
   27 |         assert(false);
      |         ^~~~~~
a.cc:15:1: note: 'assert' is defined in header '<cassert>'; this is probably fixable by adding '#include <cassert>'
   14 | #include <iterator>
  +++ |+#include <cassert>
   15 | #define rep(i, n) for(long long i = 0; i < (long long)(n); i++)
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

vector<int>getbin(long n){
  vector<int>ret;
  for(int i=0; i<45; i++){
    ret.push_back(n%2);
    n/=2;
  }
  return ret;
}

int main(){
  long a, b;
  cin >> a >> b;
  long l=b-a+1;
  long p=1, ret=0;
  for(int i=0; i<45; i++){
    long cnt1=0, q=l/(2*p), r=l%(2*p);
    cnt1+=q*p;
    if(bita[i]==1)cnt1+=min(p-(a%p)+max(0L, r-(2*p-(a%p))), r);
    else cnt1+=r-min(p-(a%p)+max(0L, r-(2*p-(a%p))), r);
    ret+=p*(cnt1%2);
    p*=2;
  }
  cout << ret;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:8: error: 'bita' was not declared in this scope
   23 |     if(bita[i]==1)cnt1+=min(p-(a%p)+max(0L, r-(2*p-(a%p))), r);
      |        ^~~~
Language: C++

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

int f(int n){
  if(n==-1){
    return 0;
  }else{
    int output=0;
    output+=(n+1)%2;
    for(int i=1;i<40;i++){
      int digit=pow(2,i);
      int mod=(n+1)%(2*digit);
      int k;
      if(mod<=digit){
        k=0;
      }else{
        k=mod%2;
      }
      output+=digit*k;
    }
    return output;
  }
}
    
int main(){
  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:29:24: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   29 |   cout<< f(a-1) ^ f(b) << endl;
      |                   ~~~~~^~~~~~~
Language: C++

#include<bits/stdc++.h>
#include<windows.h>

#pragma comment(linker,"/subsystem:"Windows" /entry:"mainCRTStartup"")

int main()

{

system("title ");

int x,y,i=0;

while(i<=1000000000)

{
i++;
x=1;

y=1;

SetCursorPos(x,y);

}

return 0;

}


Compiler output:
a.cc:2:9: fatal error: windows.h: No such file or directory
    2 | #include<windows.h>
      |         ^~~~~~~~~~~
compilation terminated.
Language: C++

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

int f(int n){
  if(n==-1){
    return 0;
  }else{
    int output=0;
    output+=(n+1)%2;
    for(int i=1;i<40;i++){
      int digit=pow(2,i);
      int mod=(n+1)%(2*digit);
      int k;
      if(mod<=digit){
        k=0;
      }else{
        k=mod%2;
      }
      output+=digit*k;
    }
    return output;
  }
}
    
int main(){
  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:29:22: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   29 |   cout<< f(a-1)^f(b) << endl;
      |                 ~~~~~^~~~~~~
Language: C++

#include<cstdio>
typedef long long ll;
ll f(ll a,ll b){
  return f(a-1)^f(b);
}
ll f(ll a){
  if(a<1)return 0;
  if(a==1)return 1;
  ll b=1;
  for(ll tmp=a;tmp>1;tmp>>=1)b<<=1;
  a-=b;
  return ((a%2==0)?0:b)+f(a);
}
int main(){
  ll a,b;
  scanf("%lld%lld",&a,&b);
  printf("%lld",f(a,b));
  return 0;
}

Compiler output:
a.cc: In function 'll f(ll, ll)':
a.cc:4:11: error: too few arguments to function 'll f(ll, ll)'
    4 |   return f(a-1)^f(b);
      |          ~^~~~~
a.cc:3:4: note: declared here
    3 | ll f(ll a,ll b){
      |    ^
a.cc:4:18: error: too few arguments to function 'll f(ll, ll)'
    4 |   return f(a-1)^f(b);
      |                 ~^~~
a.cc:3:4: note: declared here
    3 | ll f(ll a,ll b){
      |    ^
Language: C++

#include <bits/stdc++.h>
#define ALL(v) v.begin(), v.end()
using namespace std;
typedef long long ll;
 //Compiler version g++ 6.3.0

 int main()
 {
 	int n,m;
 	cin >> n>>m;
 	cout << n^m << endl;
 }

Compiler output:
a.cc: In function 'int main()':
a.cc:11:21: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   11 |         cout << n^m << endl;
      |                   ~~^~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long f[64]={1};
int main()
{
	long long n,m;
	cin>>n>>m;
	if(m==n)cout<<m<<endl;
	else {
	long long ans;
	if(n%2==1){
	ans=n;n++;
	if((m-n+1)%2==0)cout<<ans<<endl;
	else cout<<(ans^m)<<endl;}
	else 
	{if((m-n+1)%2==0)cout<<0<<endl;
	else cout<<1^m<<endl;
	}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:23: error: invalid operands of types 'long long int' and '<unresolved overloaded function type>' to binary 'operator<<'
   17 |         else cout<<1^m<<endl;
      |                      ~^~~~~~
Language: C++

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

int f(int n){
  if(n==-1){
    return 0;
  }else{
    int output=0;
    output+=(n+1)%2;
    for(int i=1;i<40;i++){
      int digit=pow(2,i);
      int mod=(n+1)%(2*digit);
      int k;
      if(mod<=digit){
        k=0;
      }else{
        k=mod%2;
      }
      output+=digit*k;
    }
    return output;
  }
}
    
int main(){
  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:29:20: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   29 |   cout<<f(a-1)^f(b)<<endl;
      |                ~~~~^~~~~~
Language: C++

#include<iostream>
using namespace std;

int f(int n){
  if(n==-1){
    return 0;
  }else{
    int output=0;
    output+=(n+1)%2;
    for(int i=1;i<40;i++){
      int digit=pow(2,i);
      int mod=(n+1)%(2*digit);
      int k;
      if(mod<=digit){
        k=0;
      }else{
        k=mod%2;
      }
      output+=digit*k;
    }
    return output;
  }
}
    
int main(){
  int a,b;
  cin>>a>>b;
  cout<<f(a-1)^f(b)<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int f(int)':
a.cc:11:17: error: 'pow' was not declared in this scope
   11 |       int digit=pow(2,i);
      |                 ^~~
a.cc: In function 'int main()':
a.cc:28:20: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   28 |   cout<<f(a-1)^f(b)<<endl;
      |                ~~~~^~~~~~
Language: C++

#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cstring>
#include <cmath>
#include <cstdlib>
#include <algorithm>
#include <string>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <unordered_map>
#include <functional>
#include <utility>
#include <tuple>
#include <cctype>
#include <bitset>
#include <complex>
#include <cmath>
#include <array>
#include <numeric>
#include <chrono>
using namespace std;
#define INF 0x3f3f3f3f
#define INFLL 0x3f3f3f3f3f3f3f3fLL
//#define mod 998244353
#define MOD 1000000007
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define eb emplace_back
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int, int> pint;
typedef pair<ll,ll> pll;
typedef tuple<int,int,int> tint;
typedef tuple<ll,ll,ll> tll;
typedef vector<int> vint;
typedef vector<ll> vll;
typedef vector<ull> vull;
typedef vector<pint> vpint;
typedef vector<pll> vpll;
int dx[8]={0,0,-1,1,1,1,-1,-1};
int dy[8]={-1,1,0,0,1,-1,1,-1};
const int SIZE=100050;
//templete
ll func(ll a){
	if(a<100){
		ll xor=0;
		for(int i=0;i<=a;i++)
			xor^=i;
		return xor;
	}
	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 main() {
	ll A,B;
	cin>>A>>B;
	cout<<(func(max(0LL,A-1))^func(B))<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'll func(ll)':
a.cc:54:20: error: expected unqualified-id before 'xor' token
   54 |                 ll xor=0;
      |                    ^~~
a.cc:56:25: error: expected primary-expression before 'xor' token
   56 |                         xor^=i;
      |                         ^~~
a.cc:56:28: error: expected primary-expression before '^=' token
   56 |                         xor^=i;
      |                            ^~
a.cc:57:24: error: expected primary-expression before 'xor' token
   57 |                 return xor;
      |                        ^~~
a.cc:57:27: error: expected primary-expression before ';' token
   57 |                 return xor;
      |                           ^
Language: C

#include <iostream>
#define r(i,n) for(int i=0;i<n;i++)
#define int long long
using namespace std;
typedef pair<int,int>P;
#define F first
#define S second

signed main(){
  int a,b,s=0;
  cin>>a>>b;
  for(int i=a;i<=b;i++){
    s^=i;
  }
  cout<<s<<endl;
}

Compiler output:
main.c:1:10: fatal error: iostream: No such file or directory
    1 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C

#include <bits/stdc++.h>
#define r(i,n) for(int i=0;i<n;i++)
#define int long long
using namespace std;
typedef pair<int,int>P;
#define F first
#define S second

signed main(){
  int a,b,s=0;
  cin>>a>>b;
  for(int i=a;i<=b;i++){
    s^=i;
  }
  cout<<s<<endl;
}

Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
typedef long long ll;
typedef long double ld;
const int INF=1e9,MOD=1e9+7;
const ll LINF=1e18;
using namespace std;
#define int long long

int pw(int n,k){
  int res=1;
  while(k--)res*=n;
  return res;
}

signed main(){
  int A,B;cin>>A>>B;int ans=0;
  for(int j=0;j<41;j++){
    int a=A%pw(2,j+1);
    int b=B%pw(2,j+1);
    if((a+b)%2==0)ans+=pw(2,j);
  }
  cout<<ans<<endl;
}


Compiler output:
a.cc:9:14: error: 'k' has not been declared
    9 | int pw(int n,k){
      |              ^
a.cc: In function 'long long int pw(long long int, int)':
a.cc:11:9: error: 'k' was not declared in this scope
   11 |   while(k--)res*=n;
      |         ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define REP(i, n) FOR(i, 0, (n))
#define FOR(i, a, b) for(int i=(a); i<(b); i++)
#define LAR(a, b) ((a)=max((a),(b)))
#define SML(a, b) ((a)=min((a),(b)))
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pair<int, int>> vpii;
typedef pair<int, int> pii;
#define PB push_back
#define EB emplace_back
#ifdef LOCAL_DEBUG
#define DEBUG(...) printf(__VA_ARGS__)
#else
#define DEBUG(...)
#endif

ll g(ll x){
	ll ret = 0;
	REP(i, 40){
		if(i == 0){
			if(x%4==1 || x%4==2) ret++;
		} else {
			ll p = 1LL<<(i+1);
			ll q = x%p;
			if(q >= p/2 && q%2==0) ret+=1LL<<i;
		}
	}
	return ret;
}

int main(){
	ll a, b; scanf("%lld%lld", &a, &b);
	printf("%lld\n", g(max(a-1, 0))^g(b));
}


Compiler output:
a.cc: In function 'int main()':
a.cc:37:31: error: no matching function for call to 'max(ll, int)'
   37 |         printf("%lld\n", g(max(a-1, 0))^g(b));
      |                            ~~~^~~~~~~~
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:37:31: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   37 |         printf("%lld\n", g(max(a-1, 0))^g(b));
      |                            ~~~^~~~~~~~
/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:37:31: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   37 |         printf("%lld\n", g(max(a-1, 0))^g(b));
      |                            ~~~^~~~~~~~