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

#include<bits/stdc++.h>
using namespace std;
#define REP(i,n) for(long long i=0;i<n;i++)
#define REP1(i,n) for(long long i=1;i<=n;i++)
#define REPB(i,n) for(long long i=((n)-1);i>=0;i--)
#define REPB1(i,n) for(long long i=(n);i>0;i--)
#define ITE(arr) for(auto ite=(arr).begin();ite!=(arr).end();ite++)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define YNPRT(b) cout<<((b)?"Yes":"No")<<endl
#define REV(arr) reverse(ALL(arr))
typedef long long ll;
typedef pair<int,int> pii;
//---------------------
#define MAXN 100000
//---------------------
ll nums,numc;
int main(){
	cin>>nums>>numc;
	numc>>=1;
	cout<<(nums>numc)?(numc):((nums+numc)>>1)<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:50: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   22 |         cout<<(nums>numc)?(numc):((nums+numc)>>1)<<endl;
      |                                  ~~~~~~~~~~~~~~~~^~~~~~
Language: C++

#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<iomanip>
#include<math.h>
#include<complex>
#include<queue>
#include<deque>
#include<stack>
#include<map>
#include<set>
#include<bitset>
using namespace std;
#define REP(i,m,n) for(int i=(int)m ; i < (int) n ; ++i )
#define rep(i,n) REP(i,0,n)
typedef long long ll;
typedef pair<int,int> pint;
typedef pair<ll,int> pli;
const int inf=1e9+7;
const ll longinf=1LL<<60 ;
const ll mod=1e9+7 ;

int main(){
  ll n,m;
  cin >> n >> m;
cout << max(n,n+(2*m-n)/4 << endl;
return 0;}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:27: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   27 | cout << max(n,n+(2*m-n)/4 << endl;
      |               ~~~~~~~~~~~~^~~~~~~
Language: C++

#include<bits/stdc++.h>

using namespace std;

/*

        Bismillahir Rahmanir Rahim
        Problem :
        Problem Link :
        Topics :
        Solver : Masud Parves
        I Love Code More than Sharks Love Blood <3
*/


#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define SZ(a)           (int)a.size()
#define all(a)  a.begin(), a.end()
#define allr(a)  a.rbegin(), a.rend()


#define sf(a)           scanf("%d",&a)
#define sff(a,b)        scanf("%d %d",&a,&b)
#define sfff(a,b,c)     scanf("%d %d %d",&a,&b,&c)

#define f0(i,b) for(int i=0;i<(b);i++)
#define f1(i,b) for(int i=1;i<=(b);i++)
#define f2(i,a,b) for(int i=(a);i<=(b);i++)
#define fr(i,b,a) for(int i=(b);i>=(a);i--)

#define CIN ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);
#define TEST_CASE(t) for(int zz=1 ; zz<=t ; zz++)
#define PRINT_CASE printf("Case %d: ",zz)
#define Debug(x)            cout<<#x " = "<<(x)<<endl
#define NOT_VISITED 0
#define IS_VISITED 1
#define WHITE 0
#define GRAY 1
#define BLACK 2



int fx[4]= {1,-1,0,0};
int fy[4]= {0,0,1,-1};

/*-----------------------Bitmask------------------*/
//int Set(int N,int pos){return N=N  (1<<pos);}
//int Reset(int N,int pos){return N= N & ~(1<<pos);}
//bool Check(int N,int pos){return (bool)(N & (1<<pos));}
/*------------------------------------------------*/


const double PI = acos(-1.0);
const double EPS = 1e-6;
const int MOD = (int)1e9+7;
const int maxn = (int)2e5+5;

typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef pair<int, int> pii;
typedef pair<ll, int> plli;
typedef pair<int, ll> pill;


int main() {
    CIN
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);

    l S,C;
    cin >> S >> C;

    ll total=0LL;

    if(C>=S*2){
        total += S;
        int rem = C-S*2;
        total+=rem/4;
    }else {
        total = C/2;
    }

    cout << total << endl;

    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:74:5: error: 'l' was not declared in this scope; did you mean 'll'?
   74 |     l S,C;
      |     ^
      |     ll
a.cc:75:12: error: 'S' was not declared in this scope; did you mean 'SZ'?
   75 |     cin >> S >> C;
      |            ^
      |            SZ
a.cc:75:17: error: 'C' was not declared in this scope
   75 |     cin >> S >> C;
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
  
int main() {
  int S_NUM, C_NUM;
  cin >> S_NUM >> C_NUM;
  
  // Sの数だけsccパターンを作る
  // SがN個あったら、Cは２N個必要
  // C_NUM < 2N のときは (C_NUM / 2)個作れる  
  int scc_num_1 = min(S_NUM, C_NUM / 2);
  if(2 * S_NUM > C_NUM) {
    cout << C_NUM / 2 << endl;
    return;
  }
  
  // あまったcでsccパターンを作る
  // Cのみでsccパターンを作るためには4つのCが必要になる 
  int rest_c_num = max(C_NUM - (2 * S_NUM), 0);
  int scc_num_2 = rest_c_num / 4;
  
  // SCC_NUM_1とSCC_NUM_2を合計した数が総scc数
  int result = scc_num_1 + scc_num_2;
    
  cout << result << endl;
 }


Compiler output:
a.cc: In function 'int main()':
a.cc:14:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
   14 |     return;
      |     ^~~~~~
Language: C++

N,M = map(int,input().split())

count=0

if N*2<=M:
  count = N
  M -= N*2
else:
  count = M/2
  M = 0

count += M//4

print(count)

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

#include <stdio.h>
#define ll long long
using namespace std;
ll lin() {ll x;scanf("%lld",&x);return x;}
int main(){
    ll n=lin();
    cout<<max(-2*n+lin(),0ll)/4+n<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: 'cout' was not declared in this scope
    7 |     cout<<max(-2*n+lin(),0ll)/4+n<<endl;
      |     ^~~~
a.cc:2:1: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <stdio.h>
  +++ |+#include <iostream>
    2 | #define ll long long
a.cc:7:11: error: 'max' was not declared in this scope
    7 |     cout<<max(-2*n+lin(),0ll)/4+n<<endl;
      |           ^~~
a.cc:7:36: error: 'endl' was not declared in this scope
    7 |     cout<<max(-2*n+lin(),0ll)/4+n<<endl;
      |                                    ^~~~
a.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    1 | #include <stdio.h>
  +++ |+#include <ostream>
    2 | #define ll long long
Language: C

def fun():
     print('ac')
     print('ac')
     print('ac')
     print('ac')
N,M=map(int,input().split())
if N*2>=M:
     print(M//2)
else:
     result=N+(M-2*N)//4
     print(result)

Compiler output:
main.c:1:1: error: unknown type name 'def'
    1 | def fun():
      | ^~~
main.c: In function 'fun':
main.c:1:10: error: expected declaration specifiers before ':' token
    1 | def fun():
      |          ^
main.c:2:12: warning: multi-character character constant [-Wmultichar]
    2 |      print('ac')
      |            ^~~~
main.c:3:12: warning: multi-character character constant [-Wmultichar]
    3 |      print('ac')
      |            ^~~~
main.c:4:12: warning: multi-character character constant [-Wmultichar]
    4 |      print('ac')
      |            ^~~~
main.c:5:12: warning: multi-character character constant [-Wmultichar]
    5 |      print('ac')
      |            ^~~~
Language: C

#include<bits/stdc++.h>
using namespace std;
int main()
{
    long long a, b, c=0;
    cin>>b>>a;
    if(2*b<=a)
    {
        c+=b;
        if(a%2==0)
            a-=2*b;
        else
            a-=2*b;
        while(a>=4)
        {
            c++;a-=4;
        }
    }
    else if(2*b>a)
    {
        c+=a/2;
    }
    cout<<c<<endl;
    return 0;
}


Compiler output:
main.c:1:9: fatal error: bits/stdc++.h: No such file or directory
    1 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cinttypes>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <ctime>
#include <deque>
#include <functional>
#include <iostream>
#include <limits>
#include <list>
#include <map>
#include <memory>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <vector>
using namespace std;

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  
  int64_t N, M;
  cin >> N >> M;
  
  int64_t X = (M - 2 * N) / 4;
  int64_t result = 0;
  for (int64_t x = max(0LL, X - 10); x <= X + 10; ++x) {
    result = max(result, min(2 * (N + x), M - 2 * x));
  }
  
  cout << result / 2 << '\n';
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:37:23: error: no matching function for call to 'max(long long int, int64_t)'
   37 |   for (int64_t x = max(0LL, X - 10); x <= X + 10; ++x) {
      |                    ~~~^~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 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:37:23: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int64_t' {aka 'long int'})
   37 |   for (int64_t x = max(0LL, X - 10); x <= X + 10; ++x) {
      |                    ~~~^~~~~~~~~~~~~
/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:37:23: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   37 |   for (int64_t x = max(0LL, X - 10); x <= X + 10; ++x) {
      |                    ~~~^~~~~~~~~~~~~
Language: C++

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

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  long long n, m;
  cin >> n >> m;
  long long res;
  if (2 * n > m) res = m / 2;
  else res = n + (m - 2 * n) / 4;
  cout << res << "\n";
  return 0;
}98

Compiler output:
a.cc:14:2: error: expected unqualified-id before numeric constant
   14 | }98
      |  ^~
Language: C++

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

int main(void) {
    int n, m;
    cin >> n >> m;
    cout << max(n + (m - n * 2) / 4, m / 2));
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:44: error: expected ';' before ')' token
    7 |     cout << max(n + (m - n * 2) / 4, m / 2));
      |                                            ^
      |                                            ;
Language: C++

S, C = map(int, raw_input().split(' '))

X = min(S, C / 2)

res = X

C -= 2 * X

res += C / 4

print res

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

include<iostream>
using namespace std;
int main()
{
int n,m,k;
cin>>n>>m;
if(n*2<=m){
k=n;
m=m-n*2;
k+=m/4;}
else{cout<<m/2;}
cout<<"\n"<<k;
return 0;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:6:1: error: 'cin' was not declared in this scope
    6 | cin>>n>>m;
      | ^~~
a.cc:11:6: error: 'cout' was not declared in this scope
   11 | else{cout<<m/2;}
      |      ^~~~
a.cc:12:1: error: 'cout' was not declared in this scope
   12 | cout<<"\n"<<k;
      | ^~~~
Language: C++

#include <iostream>
using namespace std;
int main(){
  long long int N, M;
  cin >> N >> M;
  cout << min(N, M/2) + max(0,(M-2*N)/4) << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:28: error: no matching function for call to 'max(int, long long int)'
    6 |   cout << min(N, M/2) + max(0,(M-2*N)/4) << endl;
      |                         ~~~^~~~~~~~~~~~~
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:6:28: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'long long int')
    6 |   cout << min(N, M/2) + max(0,(M-2*N)/4) << endl;
      |                         ~~~^~~~~~~~~~~~~
/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
Language: Java

import java.util.*;
public class Main {
  public static void main(String[] args) {
     Scanner sc = new Scanner(System.in);
      int N = sc.nextInt();
      int M = sc.nextInt();
      int result = 0;
      if (M >= 2) {
        if (N*2 <= M) {
          if (M - N*2) >= 4 {
            result = ((M - N*2) / 4) + N);
          } else {
            result = N;
          }
        } else {
          result = M/2;
        }
      } else {
        result = 0;
      }
      System.out.println(result);
  }
}

Compiler output:
Main.java:10: error: illegal start of expression
          if (M - N*2) >= 4 {
                       ^
Main.java:10: error: ';' expected
          if (M - N*2) >= 4 {
                           ^
Main.java:11: error: ';' expected
            result = ((M - N*2) / 4) + N);
                                        ^
Main.java:12: error: 'else' without 'if'
          } else {
            ^
4 errors
Language: C++

#include "template.hpp"

int main() {
  int n, m;
  cin >> n >> m;
  cout << min(m / 2, (2 * n + m) / 4) << endl;
}


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

#include<cstdio>
#include<cstring>
#include<algorithm>
typedef __int64 ll;
using namespace std;

int main() {
    ll n, m, ans;
    while(scanf("%I64d %I64d", &m, &n) != EOF) {
        if(m * 2 >= n) {
            ans = n / 2;
        } else {
            n -= m * 2;
            ans = m + n /3;
        }
        printf("%I64d\n", ans);
    }
    return 0;
}


Compiler output:
a.cc:4:9: error: '__int64' does not name a type; did you mean '__int64_t'?
    4 | typedef __int64 ll;
      |         ^~~~~~~
      |         __int64_t
a.cc: In function 'int main()':
a.cc:8:5: error: 'll' was not declared in this scope
    8 |     ll n, m, ans;
      |     ^~
a.cc:9:33: error: 'm' was not declared in this scope
    9 |     while(scanf("%I64d %I64d", &m, &n) != EOF) {
      |                                 ^
a.cc:9:37: error: 'n' was not declared in this scope
    9 |     while(scanf("%I64d %I64d", &m, &n) != EOF) {
      |                                     ^
a.cc:11:13: error: 'ans' was not declared in this scope; did you mean 'abs'?
   11 |             ans = n / 2;
      |             ^~~
      |             abs
a.cc:14:13: error: 'ans' was not declared in this scope; did you mean 'abs'?
   14 |             ans = m + n /3;
      |             ^~~
      |             abs
a.cc:16:27: error: 'ans' was not declared in this scope; did you mean 'abs'?
   16 |         printf("%I64d\n", ans);
      |                           ^~~
      |                           abs
Language: C++

// ConsoleApplication50.cpp : コンソール アプリケーションのエントリ ポイントを定義します。
//

#include "stdafx.h"
#include <iostream>

using namespace std;

int main()
{
	int n, m;
	cin >> n >> m;
	int us = n * 2 <= m ? n : m / 2;
	//cout << "us : " << us << endl;
	int rc = m - 2 * us;
	int uco = rc <= 0 ? 0 : rc / 4;
	cout << us + uco << endl;
    return 0;
}



Compiler output:
a.cc:4:10: fatal error: stdafx.h: No such file or directory
    4 | #include "stdafx.h"
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
using namespace std;
int main(){
 
	longlongint s,c;
 
	cin>>s>>c;
	if(s>=c/2){
		cout<<c/2<<endl;
	}
 
	if(c/2>s){
		cout<<s+(c-s*2)/4<<endl;
	}
 
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: 'longlongint' was not declared in this scope
    5 |         longlongint s,c;
      |         ^~~~~~~~~~~
a.cc:7:14: error: 's' was not declared in this scope
    7 |         cin>>s>>c;
      |              ^
a.cc:7:17: error: 'c' was not declared in this scope
    7 |         cin>>s>>c;
      |                 ^
Language: C

#include<stdio.h>
int main()
{
	int s,c;
	int q,w;
	int e,r;
	scanf_s("%d",&s);
	scanf_s("%d",&c);
	q=s*2;
	if(c>q)
	{
		w=c-q;
		e=w/4;
		r=e+s;
		printf("%d",r);
	}
	if(c==q)
	{
		printf("%d",s);
	}
	if(c<q)
	{
		if(0==c%2)
		{
			w=c/2;
			printf("%d",w);
		}
		if(0!=c%2)
		{
			c--;
			w=c/2;
			printf("%d",w);
		}
	}
}

Compiler output:
main.c: In function 'main':
main.c:7:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    7 |         scanf_s("%d",&s);
      |         ^~~~~~~
      |         scanf
Language: C++


#include<stdio.h>
int main()
{
   __int64 N, M;
   scanf("%I64d %I64d", &N, &M);
   printf("%I64d", N + (M - 2 * N) / 4);
   return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:4: error: '__int64' was not declared in this scope; did you mean '__int64_t'?
    5 |    __int64 N, M;
      |    ^~~~~~~
      |    __int64_t
a.cc:6:26: error: 'N' was not declared in this scope
    6 |    scanf("%I64d %I64d", &N, &M);
      |                          ^
a.cc:6:30: error: 'M' was not declared in this scope
    6 |    scanf("%I64d %I64d", &N, &M);
      |                              ^
Language: C


#include<stdio.h>
int main()
{
   __int64 N, M;
   scanf("%I64d %I64d", &N, &M);
   printf("%I64d", N + (M - 2 * N) / 4);
   return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:4: error: unknown type name '__int64'; did you mean '__int64_t'?
    5 |    __int64 N, M;
      |    ^~~~~~~
      |    __int64_t
Language: C

#include "stdafx.h"
#include<stdio.h>
#include<stdlib.h>
int main()
{
   __int64 N, M;
   scanf("%I64d %I64d", &N, &M);
   printf("%I64d", N + (M - 2 * N) / 4);
   system("pause");
   return 0;
}

Compiler output:
main.c:1:10: fatal error: stdafx.h: No such file or directory
    1 | #include "stdafx.h"
      |          ^~~~~~~~~~
compilation terminated.
Language: Java

import java.io.*;
import java.util.*;
import java.lang.Math.*;
public class Main {
    private static MyScanner scanner;

    public static void main (String[] args){
        Main instance = new Main();
        scanner = instance.new MyScanner();
        instance.solve();
    }

    private void solve() {
        try {
            Long counter = 0;
            Long N = scanner.nextLong();
            Long M = scanner.nextLong();
            Long amari;
            if (M > 2*N) {
                counter += N;
                M -= 2*N;
            } else {
                counter += M / 2;
                M -= (M / 2) * 2;
            }
            if (M > 3) {
                counter += M / 4;
            }
            System.out.println(counter);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private class MyScanner {
        String[] s;
        int i;
        BufferedReader br;
        String reg = " ";

        MyScanner () {
            s = new String[0];
            i = 0;
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        public String next() throws IOException {
            if (i < s.length) return s[i++];
            String line = br.readLine();
            while (line.equals("")) {
                line = br.readLine();
            }
            s = line.split(reg, 0);
            i = 0;
            return s[i++];
        }

        public int nextInt() throws NumberFormatException, IOException {
            return Integer.parseInt(next());
        }

        public double nextDouble() throws NumberFormatException, IOException {
            return Double.parseDouble(next());
        }

        public long nextLong() throws NumberFormatException, IOException {
            return Long.parseLong(next());
        }
    }
}

Compiler output:
Main.java:15: error: incompatible types: int cannot be converted to Long
            Long counter = 0;
                           ^
1 error
Language: C++

#include <iostream>

int main() {
  int N, M;
  std::cin >> N >> M;
  int result;
  result = N < M / 2 ? (N + (M - 2N) / 4) : M / 2;                                                                                                                                                     
  std::cout <<  result << std::endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:34: error: unable to find numeric literal operator 'operator""N'
    7 |   result = N < M / 2 ? (N + (M - 2N) / 4) : M / 2;
      |                                  ^~
Language: C++

#include <iostream>

int main() {
  int N, M;
  std::cin >> N >> M;
  int result = N < M / 2 ? (N + (M - 2N) / 4) : M / 2;
  std::cout <<  result << std::endl;
  return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:6:38: error: unable to find numeric literal operator 'operator""N'
    6 |   int result = N < M / 2 ? (N + (M - 2N) / 4) : M / 2;
      |                                      ^~
Language: C++


def main():
    arg = raw_input().split(" ")
    N = int(arg[0])
    M = int(arg[1])
    c_pattern = (M/2)

    if N < 1 or N > 10**12:
        return 0
    if M < 1 or M > 10**12:
        return 0

    if N == c_pattern:
        return N
    elif N < c_pattern:
        tmp = M - (N * 2)
        return N + (tmp / 4)
    elif N > c_pattern:
        return int(c_pattern)


print main()


Compiler output:
a.cc:2:1: error: 'def' does not name a type
    2 | def main():
      | ^~~
Language: C++

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

int main() {
    int64_t s, c;
    cin >> s >> c;

    int64_t k = min(s, c / 2LL);
    c -= k * 2LL;
    k += c / 4LL;
    cout << k << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:20: error: no matching function for call to 'min(int64_t&, long long int)'
    9 |     int64_t k = min(s, c / 2LL);
      |                 ~~~^~~~~~~~~~~~
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:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:9:20: note:   deduced conflicting types for parameter 'const _Tp' ('long int' and 'long long int')
    9 |     int64_t k = min(s, c / 2LL);
      |                 ~~~^~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: 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:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:9:20: note:   mismatched types 'std::initializer_list<_Tp>' and 'long int'
    9 |     int64_t k = min(s, c / 2LL);
      |                 ~~~^~~~~~~~~~~~
Language: C++

#include<stdio.h>
#include<math.h>
int main(){
	__int64 a,b;
	while(scanf("%I64d %I64d",&a,&b)==2)
	{
		__int64 sum=0;
		if(b/2>a)
		{
			sum+=a;
			b-=2*a;
			sum+=b/4;
			printf("%I64d\n",sum);
		}
		else
		{
			sum+=b/2;
			printf("%I64d\n",sum);
		}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: '__int64' was not declared in this scope; did you mean '__ynf64'?
    4 |         __int64 a,b;
      |         ^~~~~~~
      |         __ynf64
a.cc:5:36: error: 'a' was not declared in this scope
    5 |         while(scanf("%I64d %I64d",&a,&b)==2)
      |                                    ^
a.cc:5:39: error: 'b' was not declared in this scope
    5 |         while(scanf("%I64d %I64d",&a,&b)==2)
      |                                       ^
a.cc:7:24: error: expected ';' before 'sum'
    7 |                 __int64 sum=0;
      |                        ^~~~
      |                        ;
a.cc:10:25: error: 'sum' was not declared in this scope
   10 |                         sum+=a;
      |                         ^~~
a.cc:17:25: error: 'sum' was not declared in this scope
   17 |                         sum+=b/2;
      |                         ^~~
Language: C

#include<stdio.h>
#include<math.h>
__int64 a,b;
int main(){
	while(scanf("%I64d %I64d",&a,&b)==2)
	{
		__int64 sum=0;
		if(b/2>a)
		{
			sum+=a;
			b-=2*a;
			sum+=b/4;
			printf("%I64d\n",sum);
		}
		else
		{
			sum+=b/2;
			printf("%I64d\n",sum);
		}
	}
	return 0;
}

Compiler output:
main.c:3:1: error: unknown type name '__int64'; did you mean '__int64_t'?
    3 | __int64 a,b;
      | ^~~~~~~
      | __int64_t
main.c: In function 'main':
main.c:7:17: error: unknown type name '__int64'; did you mean '__int64_t'?
    7 |                 __int64 sum=0;
      |                 ^~~~~~~
      |                 __int64_t
Language: C++

#include<cstdio>
#include<iostream>
#include<cstring>
__int64 a,b;
int main(){
	while(scanf("%I64d %I64d",&a,&b)==2)
	{
		__int64 sum=0;
		if(b/2>a)
		{
			sum+=a;
			b-=2*a;
			sum+=b/4;
			printf("%I64d\n",sum);
		}
		else
		{
			sum+=b/2;
			printf("%d\n",sum);
		}
	}
	return 0;
}

Compiler output:
a.cc:4:1: error: '__int64' does not name a type; did you mean '__int64_t'?
    4 | __int64 a,b;
      | ^~~~~~~
      | __int64_t
a.cc: In function 'int main()':
a.cc:6:36: error: 'a' was not declared in this scope
    6 |         while(scanf("%I64d %I64d",&a,&b)==2)
      |                                    ^
a.cc:6:39: error: 'b' was not declared in this scope
    6 |         while(scanf("%I64d %I64d",&a,&b)==2)
      |                                       ^
a.cc:8:17: error: '__int64' was not declared in this scope; did you mean '__int64_t'?
    8 |                 __int64 sum=0;
      |                 ^~~~~~~
      |                 __int64_t
a.cc:11:25: error: 'sum' was not declared in this scope
   11 |                         sum+=a;
      |                         ^~~
a.cc:18:25: error: 'sum' was not declared in this scope
   18 |                         sum+=b/2;
      |                         ^~~
Language: C++

#include <iostream>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <sstream>
#include <algorithm>

using namespace std;

#define	numberof(a)	(sizeof(a) / sizeof(a[0]))
#define	INF		(1000000)
#define Rep(i,n) for(int i = 0; i < (n); i++ )

//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

//debug
#define dump(x)  cout << #x << " = " << (x) << endl;
#define debug(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;
#define	show(x)	 copy( (x).begin(), (x).end(), ostream_iterator<int>(cout, ",") );	// container<int>を全て表示

typedef long long ll;

//constant
//--------------------------------------------
const double EPS = 1e-10;
const double PI = acos(-1.0);

int main()
{
	ll N, M = 0;
	ll ans = 0;

	cin >> N >> M;
	if( N <= 2 * M ){
		ans = N;
		M -= 2 * N;
	}
	ans += M / 4;
	cout << ans << endl;

	return 0;
}


Compiler output:
a.cc:28:19: error: 'acos' was not declared in this scope
   28 | const double PI = acos(-1.0);
      |                   ^~~~
Language: C++

#include <string.h>
#include <string>
#include <vector>
#include <deque>
#include <list>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <iterator>
#include <functional>
#include <algorithm>
#include <numeric>
#include <iostream>
#include <sstream>
#include <iomanip>
#include <cmath>
#include <cstdlib>
#include <cstdio>
using namespace std;
#define sz(a)  int((a).size())
#define all(a) a.begin(), a.end()
#define pb push_back
#define mp make_pair
#define CLR(a) memset((a), 0, sizeof(a))
#define INF (1 << 31) - 1
const int dh[8] = {-1, 1, 0, 0,1,1,-1,-1};
const int dw[8] = {0, 0, 1, -1,1,-1,1,-1};
typedef long long ll;
typedef pair<int, int> p;
typedef vector <int> VI;
typedef vector <string> VS;

vector <int> his;

int main(){

	ll s,c;
	cin >> s;
	cin >> c;

	if(c <= 2 * s ){
		cout << c / 2 << endl;
	}else{
		cout << s + ((c - 2 * s) / 4 << endl;		
	}

	return 0;	
}


Compiler output:
a.cc: In function 'int main()':
a.cc:45:46: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   45 |                 cout << s + ((c - 2 * s) / 4 << endl;
      |                              ~~~~~~~~~~~~~~~~^~~~~~~
a.cc:45:53: error: expected ')' before ';' token
   45 |                 cout << s + ((c - 2 * s) / 4 << endl;
      |                             ~                       ^
      |                                                     )
Language: C++

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

int main()｛
     int n,m;
     int ans;
     scanf("%d%d", &n,&m);
     if(n*2 > m) ans = m/2;
     else ans = n+(m-n*2)/4;
     printf("%d\n", ans);
｝

Compiler output:
a.cc:4:11: error: expected initializer before '\U0000ff5b'
    4 | int main()｛
      |           ^~
a.cc:7:11: error: expected constructor, destructor, or type conversion before '(' token
    7 |      scanf("%d%d", &n,&m);
      |           ^
a.cc:8:6: error: expected unqualified-id before 'if'
    8 |      if(n*2 > m) ans = m/2;
      |      ^~
a.cc:9:6: error: expected unqualified-id before 'else'
    9 |      else ans = n+(m-n*2)/4;
      |      ^~~~
a.cc:10:12: error: expected constructor, destructor, or type conversion before '(' token
   10 |      printf("%d\n", ans);
      |            ^
a.cc:11:1: error: '\U0000ff5d' does not name a type
   11 | ｝
      | ^~
Language: C++

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

int main()｛
     int n,m;
     int ans;
     scanf("%d%d", &n,&m);
     if(n*2 > m) ans = m/2;
     else ans = n+ (m-n*2)/4;
     printf("%d\n", ans);
｝

Compiler output:
a.cc:4:11: error: expected initializer before '\U0000ff5b'
    4 | int main()｛
      |           ^~
a.cc:7:11: error: expected constructor, destructor, or type conversion before '(' token
    7 |      scanf("%d%d", &n,&m);
      |           ^
a.cc:8:6: error: expected unqualified-id before 'if'
    8 |      if(n*2 > m) ans = m/2;
      |      ^~
a.cc:9:6: error: expected unqualified-id before 'else'
    9 |      else ans = n+ (m-n*2)/4;
      |      ^~~~
a.cc:10:12: error: expected constructor, destructor, or type conversion before '(' token
   10 |      printf("%d\n", ans);
      |            ^
a.cc:11:1: error: '\U0000ff5d' does not name a type
   11 | ｝
      | ^~
Language: C

include<stdio.h>
int main(void)
{
	//3つの狼の合計が偶数->〇
	//S->0 W->1
	//S->0x53
	//W->0x57
	//o->0x6f
	//x->0x78
	long long int N, i, h, x = 0, ok = 0;
	char c;
	static char say[100015];
	static long long int dou[100015];
	long long int  sta[2];
	scanf("%lld", &N);
	fflush(stdin);
	for (i = 0; i < N; i++) {
		scanf("%c", &say[i]);
	}
	for (h = 0; h < 4; h++) {
		if (h == 0) { sta[0] = 0; sta[1] = 0; }
		if (h == 1) { sta[0] = 0; sta[1] = 1; }
		if (h == 2) { sta[0] = 1; sta[1] = 0; }
		if (h == 3) { sta[0] = 1; sta[1] = 1; }
		dou[0] = sta[0];
		dou[1] = sta[1];
		for (i = 2; i < N + 2; i++) {
			if (say[i-1] == 0x6f) { x = 0; }else { x = 1; }
			if ((x+dou[i - 1] + dou[i - 2])%2==1) {dou[i] = 1;}else { dou[i] = 0;}
		}
		if (dou[N] == sta[0] && dou[N + 1] == sta[1]) {
			for (i = 0; i < N; i++) {
				if (dou[i] == 0) { c = 0x53; }
				else { c = 0x57; }
				printf("%c", c);
				ok = 1;
			}
			break;
		}
	}
	if (ok == 0) { printf("-1"); }
	printf("\n");
	return 0;
}


Compiler output:
main.c:1:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include<stdio.h>
      |        ^
Language: C++

#!/usr/bin/python3
# Copyright (C) 2017 Sayutin Dmitry.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 3
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; If not, see <http://www.gnu.org/licenses/>.

def main():
    s, c = map(int, input().split())

    lo, hi = 0, int(1e18)
    
    while hi - lo > 1:
        mi = lo + (hi - lo) // 2

        free = c - 2 * mi
        if free < 0 or s + free // 2 < mi:
            hi = mi
        else:
            lo = mi
    print(lo)

main()


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #!
    1 | #!/usr/bin/python3
      |  ^
a.cc:2:3: error: invalid preprocessing directive #Copyright
    2 | # Copyright (C) 2017 Sayutin Dmitry.
      |   ^~~~~~~~~
a.cc:4:3: error: invalid preprocessing directive #This
    4 | # This program is free software; you can redistribute it and/or
      |   ^~~~
a.cc:5:3: error: invalid preprocessing directive #modify
    5 | # modify it under the terms of the GNU General Public License as
      |   ^~~~~~
a.cc:6:3: error: invalid preprocessing directive #published
    6 | # published by the Free Software Foundation; version 3
      |   ^~~~~~~~~
a.cc:8:3: error: invalid preprocessing directive #This
    8 | # This program is distributed in the hope that it will be useful,
      |   ^~~~
a.cc:9:3: error: invalid preprocessing directive #but
    9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
      |   ^~~
a.cc:10:3: error: invalid preprocessing directive #MERCHANTABILITY
   10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      |   ^~~~~~~~~~~~~~~
a.cc:11:3: error: invalid preprocessing directive #GNU
   11 | # GNU General Public License for more details.
      |   ^~~
a.cc:13:3: error: invalid preprocessing directive #You
   13 | # You should have received a copy of the GNU General Public License
      |   ^~~
a.cc:14:3: error: invalid preprocessing directive #along
   14 | # along with this program; If not, see <http://www.gnu.org/licenses/>.
      |   ^~~~~
a.cc:16:1: error: 'def' does not name a type
   16 | def main():
      | ^~~
Language: Java

import java.util.*;
public class puzzle_1 {
	public static int readint()
	{
		Scanner s = new Scanner(System.in);
		return s.nextInt();			//s.nextInt();
	}
	
	public static void main(String[] args) {
		long N, M;
		long p;
		N = readint();
		M = readint();
		if(M >= (2 * N))
			p = N + (M - 2*N)/4;
		else
			p = M/2;
		System.out.println(p);
	}	
}

Compiler output:
Main.java:2: error: class puzzle_1 is public, should be declared in a file named puzzle_1.java
public class puzzle_1 {
       ^
1 error
Language: C++



import java.util.Scanner;

/**
 * Created by srikanth on 18-02-2017.
 */
public class Main {
    public static void main(String[] args) {
        Scanner in=new Scanner(System.in);
        int N=in.nextInt();
        int M=in.nextInt();
       int val=0;
       if(2*N<=M){
           val+=N;
           M-=2*N;
       }
       val+=(M/4);
        System.out.println(val);


    }
}


Compiler output:
a.cc:3:1: error: 'import' does not name a type
    3 | import java.util.Scanner;
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:8:1: error: expected unqualified-id before 'public'
    8 | public class Main {
      | ^~~~~~
Language: C++

import Control.Monad
import Data.Maybe
import qualified Data.ByteString.Char8 as C

solve m n acc
  | m /= 0 && n >= 2 = solve (m - 1) (n - 2) (acc + 1)
  | n >= 4 = solve m (n - 4) (acc + 1)
  | otherwise = acc

  
main = do
  [m, n] <- readInts
  -- print $ solve 1 6 0
  -- print $ solve 12345 678901 0
  print $ solve m n 0
  where
    toInt :: String -> Int
    toInt = read

readInts :: IO [Int]
readInts = map (fst . fromJust . C.readInt) . C.words <$> C.getLine

readNInts :: Int -> IO [[Int]]
readNInts = flip replicateM readInts

readIntegers :: IO [Integer]
readIntegers = map (fst . fromJust . C.readInteger) . C.words <$> C.getLine

readNIntegers :: Int -> IO [[Integer]]
readNIntegers = flip replicateM readIntegers


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import Control.Monad
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <cstdio>

using namespace std;

int main()
{
	lomg int n,m;

	scanf("%ld %ld", &n, &m);

	long int num = 0;

	if (m == 0)
	{
		num = 0;
	}else
	{
		num = n + (m - 2 * n) / 4;
	}

	printf("%ld\n", num);

	return 0;
}
	

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'lomg' was not declared in this scope; did you mean 'long'?
   10 |         lomg int n,m;
      |         ^~~~
      |         long
a.cc:12:27: error: 'n' was not declared in this scope
   12 |         scanf("%ld %ld", &n, &m);
      |                           ^
a.cc:12:31: error: 'm' was not declared in this scope; did you mean 'tm'?
   12 |         scanf("%ld %ld", &n, &m);
      |                               ^
      |                               tm
Language: C++

#include<bits/stdc++.h>
using namespace std; 
typedef long long ll;
int main(){
ll n,m;
cin>>n>>m;
ll l=0;
llr=n;
ll ans;
while(l<=r){
ll mid=(l+r)/2;
ll rr=m;
rr-=mid*2;
ll e=n+rr/2;
rr-=(rr/2);
if(e>= mid && rr>=0)
l=mid+1,ans=mid;
else
r=mid-1;
}
cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:1: error: 'llr' was not declared in this scope; did you mean 'll'?
    8 | llr=n;
      | ^~~
      | ll
a.cc:10:10: error: 'r' was not declared in this scope
   10 | while(l<=r){
      |          ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
 int main(){
long long a,b;
cin>>a>>b;
ll r=a*2;
ll ans=(r+b)/4;
cout<<ans<<endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:1: error: 'll' was not declared in this scope
    6 | ll r=a*2;
      | ^~
a.cc:7:3: error: expected ';' before 'ans'
    7 | ll ans=(r+b)/4;
      |   ^~~~
      |   ;
a.cc:8:7: error: 'ans' was not declared in this scope; did you mean 'abs'?
    8 | cout<<ans<<endl;
      |       ^~~
      |       abs
Language: C++

n,m = map(int, raw_input().split())

if 2*n < m:
    print n + (m-2*n)/4
elif 2*n == m:
    print n
else:
    print m/2


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

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

using namespace std;

#define mod 1000000007LL
#define pi 3.141592653589793238462643383279;
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define f first
#define s second
#define pic pair<char,long long >


void scan(vector<ll> & v)
{
    for(int i=0;i<v.size();i++)
        scanf("%lld",&v[i]);
}

void print(vector<int> & v)
{
    for(int i=0;i<v.size();i++)
        printf("%d ",v[i]);
}

int main()a
{
    ll n,m;
    cin>>n>>m;
    if(n>=m/2)
    {
        cout<<m/2<<endl;
    }
    else
    {
        cout<<n+(m-2*n)/4<<endl;
    }
    ll acc;cin>>acc;
    return 0;
}


Compiler output:
a.cc:28:11: error: expected initializer before 'a'
   28 | int main()a
      |           ^
Language: C++

//#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using namespace std;
#define all(v) v.begin(), v.end()
using in = int64_t;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define REP(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define Yes cout<<"Yes"<<endl
#define No cout<<"No"<<endl
#define yes cout<<"yes"<<endl
#define no cout<<"no"<<endl
#define YES cout<<"YES"<<endl
#define NO cout<<"NO"<<endl
const in MOD = 1000000007;
const in INF=1e18+7;
const int inf=1e9+7;
using P=pair<int,int>;
using T=tuple<int,int,int>;
vector<int> dx={0,1,-1,0};
vector<int> dy={1,0,0,-1};
template <typename Typ>
bool chmin(Typ &a, const Typ& b) {if (a > b) {a = b; return true;} return false;}
template <typename Typ>
bool chmax(Typ &a, const Typ& b) {if (a < b) {a = b; return true;} return false;}

string s;
int n;

bool check(vector<bool> x){
    bool ret =true;
    if(x[0]){
        if(s[0]=='o' && x[1]!=x[n-1]) ret =false;
        if(s[0]=='x' && x[1]==x[n-1]) ret =false;
    }
    else{
        if(s[0]=='x' && x[1]!=x[n-1]) ret =false;
        if(s[0]=='o' && x[1]==x[n-1]) ret =false;
    }

    if(x[n-1]){
        if(s[n-1]=='o' && x[0]!=x[n-2]) ret =false;
        if(s[n-1]=='x' && x[0]==x[n-2]) ret =false;
    }
    else{
        if(s[n-1]=='x' && x[0]!=x[n-2]) ret =false;
        if(s[n-1]=='o' && x[0]==x[n-2]) ret =false;
    }
    return ret;
}

int main(){
ios::sync_with_stdio(false);cin.tie(nullptr);
//cout << fixed << setprecision(10);
    cin>>n>>s;
    bool ok=false;
//ww
    vector<bool> ww(n,false);//w:false
    REP(i,1,n-1){
        if(s[i]=='o') ww[i+1]=ww[i-1];
        else ww[i+1]=(!ww[i-1]);
        if(!ww[i]) ww[i+1] =(!ww[i+1]);
    }
    ok=check(ww);
    if(ok){
        rep(i,n){
            cout<<(ww[i]?'S':'W');
        }
        cout<<endl;
        return 0;
    }
//ws
    vector<bool> ws(n,false);//w:false
    ws[1]=true;
    REP(i,1,n-1){
        if(s[i]=='o') ws[i+1]=ws[i-1];
        else ws[i+1]=(!ws[i-1]);
        if(!ws[i]) ws[i+1] =(!ws[i+1]);
    }
    ok=check(ws);
    if(ok){
        rep(i,n){
            cout<<(ws[i]?'S':'W');
        }
        cout<<endl;
        return 0;
    }
//sw
    vector<bool> sw(n,false);//w:false
    sw[0]=true;
    REP(i,1,n-1){
        if(s[i]=='o') sw[i+1]=sw[i-1];
        else sw[i+1]=(!sw[i-1]);
        if(!sw[i]) sw[i+1] =(!sw[i+1]);
    }
    ok=check(sw);
    if(ok){
        rep(i,n){
            cout<<(sw[i]?'S':'W');
        }
        cout<<endl;
        return 0;
    }
//ss
    vector<bool> ss(n,true);//w:false
    REP(i,1,n-1){
        if(s[i]=='o') ss[i+1]=ss[i-1];
        else ss[i+1]=(!ss[i-1]);
        if(!ss[i]) ss[i+1] =(!ss[i+1]);
    }
    ok=check(ss);
    if(ok){
        rep(i,n){
            cout<<(ss[i]?'S':'W');
        }
        cout<<endl;
        return 0;
    }
//ダメだった
    cout<<-1<<endl;
}/*
./problem.exe
*/

Compiler output:
a.cc:3:10: fatal error: atcoder/all: No such file or directory
    3 | #include <atcoder/all>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namespace std;
int n,a[1<<17],b,c,i;
string s;
int main(){
  cin>>n>>s;
  for(b:{0,1}){
    for(c:{0,1}){
      a[1]=b;
      a[2]=c;
      a[0]=(s[1]=='o')^b^c;
      for(i=3;i<n;i++)a[i]=(s[i-1]=='o')^a[i-1]^a[i-2];
      if((s[n-1]=='o')^a[n-1]==a[0]^a[n-2]&&(s[0]=='o')^a[0]==a[n-1]^a[1]){
        for(i=0;i<n;i++)cout<<(a[i]==1?'S':'W');
        cout<<endl;
        return 0;
      }
    }
  }
  cout<<-1<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: expected ';' before ':' token
    7 |   for(b:{0,1}){
      |        ^
      |        ;
a.cc:7:14: error: expected primary-expression before ')' token
    7 |   for(b:{0,1}){
      |              ^
a.cc:7:14: error: expected ';' before ')' token
    7 |   for(b:{0,1}){
      |              ^
      |              ;
a.cc:8:10: error: expected ';' before ':' token
    8 |     for(c:{0,1}){
      |          ^
      |          ;
a.cc:8:16: error: expected primary-expression before ')' token
    8 |     for(c:{0,1}){
      |                ^
a.cc:8:16: error: expected ';' before ')' token
    8 |     for(c:{0,1}){
      |                ^
      |                ;
Language: C++

#include <iostream>
using namespace std;

int main() {
	int N;
	cin >> N;
	string s;
	cin >> s;
	string ans(N, 'S');
	for (int i = 1; i < N - 1; i++) {
		if (ans[i] == 'S' && ans[i - 1] == 'S' && s[i] == 'x') ans[i + 1] = 'W';
		if (ans[i] == 'S' && ans[i - 1] == 'W' && s[i] == 'o') ans[i + 1] = 'W';
		if (ans[i] == 'W' && ans[i - 1] == 'S' && s[i] == 'o') ans[i + 1] = 'W';
		if (ans[i] == 'W' && ans[i - 1] == 'W' && s[i] == 'x') ans[i + 1] = 'W';
	}
	bool OK = true;
	if (ans[N - 1] == 'S' && s[N - 1] == 'o' && ans[N - 2] != ans[0]) OK = false;
	if (ans[N - 1] == 'S' && s[N - 1] == 'x' && ans[N - 2] == ans[0]) OK = false;
	if (ans[N - 1] == 'W' && s[N - 1] == 'o' && ans[N - 2] == ans[0]) OK = false;
	if (ans[N - 1] == 'W' && s[N - 1] == 'x' && ans[N - 2] != ans[0]) OK = false;
	if (s[0] == 'o' && ans[N - 1] == 'W') OK = false;
	if (s[0] == 'x' && ans[N - 1] == 'S') OK = false;
	if (OK) {
		cout << ans << endl;
		return 0;
	}
	if (s[0] == 'x') ans[1] = 'W';
	for (int i = 1; i < N - 1; i++) {
		if (ans[i] == 'S' && ans[i - 1] == 'S' && s[i] == 'x') ans[i + 1] = 'W';
		if (ans[i] == 'S' && ans[i - 1] == 'W' && s[i] == 'o') ans[i + 1] = 'W';
		if (ans[i] == 'W' && ans[i - 1] == 'S' && s[i] == 'o') ans[i + 1] = 'W';
		if (ans[i] == 'W' && ans[i - 1] == 'W' && s[i] == 'x') ans[i + 1] = 'W';
	}
	bool OK = true;
	if (ans[N - 1] == 'S' && s[N - 1] == 'o' && ans[N - 2] != ans[0]) OK = false;
	if (ans[N - 1] == 'S' && s[N - 1] == 'x' && ans[N - 2] == ans[0]) OK = false;
	if (ans[N - 1] == 'W' && s[N - 1] == 'o' && ans[N - 2] == ans[0]) OK = false;
	if (ans[N - 1] == 'W' && s[N - 1] == 'x' && ans[N - 2] != ans[0]) OK = false;
	if (s[0] == 'o' && ans[N - 1] == 'W') OK = false;
	if (s[0] == 'x' && ans[N - 1] == 'S') OK = false;
	if (OK) cout << ans << endl;
	else cout << -1 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:34:14: error: redeclaration of 'bool OK'
   34 |         bool OK = true;
      |              ^~
a.cc:16:14: note: 'bool OK' previously declared here
   16 |         bool OK = true;
      |              ^~