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

int main() {
    ll s, c, ans = 0;
    cin >> s >> c;

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

    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:5: error: 'll' was not declared in this scope
    2 |     ll s, c, ans = 0;
      |     ^~
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin >> s >> c;
      |     ^~~
a.cc:3:12: error: 's' was not declared in this scope
    3 |     cin >> s >> c;
      |            ^
a.cc:3:17: error: 'c' was not declared in this scope
    3 |     cin >> s >> c;
      |                 ^
a.cc:6:9: error: 'ans' was not declared in this scope
    6 |         ans = s + ((c - s * 2) / 4);
      |         ^~~
a.cc:8:9: error: 'ans' was not declared in this scope
    8 |         ans = c / 2;
      |         ^~~
a.cc:11:5: error: 'cout' was not declared in this scope
   11 |     cout << ans << endl;
      |     ^~~~
a.cc:11:13: error: 'ans' was not declared in this scope
   11 |     cout << ans << endl;
      |             ^~~
a.cc:11:20: error: 'endl' was not declared in this scope
   11 |     cout << ans << endl;
      |                    ^~~~
Language: Java

package spring21;

public class ABC055_C {
	public static void main(String[] args){
		int N=1,M=6,sum=0;
		for(;;){
			if(N>=1&&M>=2){
				N--;
				M-=2;
				sum++;
			}
			else if(N==0&&M>=4){
				sum++;
				M-=4;
			}
			else{
				break;
			}
		}
			System.out.println(sum);
	}
}

Compiler output:
Main.java:3: error: class ABC055_C is public, should be declared in a file named ABC055_C.java
public class ABC055_C {
       ^
1 error
Language: C

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

#define print printf("%ld", answer)
int main(void){
  longlong  N, M, answer, k, l;
  

  scanf("%ld", &N);
  scanf("%ld", &M);

  if(N>=0&&M<=1000000000000)
    {
      
  if(M%2==0)
    {
      k = M/2;
  if(N>=k)
    {
      answer = k;
    }
  if(N==k-1)
    {
      answer = N;
    }
  if(N<=k-2)
    {
      if(k%2==0)
	{
	  l = k/2;
	  answer = N + l;
      	}
      if(k%2==1)
	{
	  l = (k-1)/2;
	  answer = N + l;
	  
	}
    }
    }


  
  if(M%2==1)
    {
      k = (M+1)/2;

      if(N>=k-1)
	{
	  answer=k-1;
	}
      if(N==k-2)
	{
	  answer = N;
	}
      else
	{
	  if((k-1-N)%2==0)
	    {
	      l = (k-1-N)/2;
	      answer = N + l;
	    }
	  else
	    {
	      l = (k-2-N)/2;
	      answer = N + l;
	    }
	}
    }
    
  print;
    }
  
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:7:3: error: unknown type name 'longlong'
    7 |   longlong  N, M, answer, k, l;
      |   ^~~~~~~~
Language: C

#include<stdio.h>

int main()
{
	int snum,cnum,ans;
	ans=0
	scanf("%d %d",&snum,&cnum);
	
	if(snum*2>cnum) {
		ans+=(int)(cnum/2);
	}else{
		 ans+=(int)((cnum-snum*2)/4)+snum;
	}
	printf("%d\n",ans);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:14: error: expected ';' before 'scanf'
    6 |         ans=0
      |              ^
      |              ;
    7 |         scanf("%d %d",&snum,&cnum);
      |         ~~~~~
Language: C

#include<stdio.h>

int main()
{
	int snum,cnum,ans;
	scanf("%d %d",&snum,&cnum);
	if(snum>=cnum*2) ans=snum;
	if(snum<cnum*2) ans=(int)((snum-2cnum)/3)+snum;
	
	printf("%d\n",ans);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:41: error: invalid suffix "cnum" on integer constant
    8 |         if(snum<cnum*2) ans=(int)((snum-2cnum)/3)+snum;
      |                                         ^~~~~
Language: C

#include<stdio.h>

int main()
{
	int N,M,ans;
	scanf("%d %d",&N,&M);
	if(N>=M*2) ans=N;
	if(N<M*2) ans=(int)((M-2N)/3)+N;
	
	printf("%d",ans);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:32: error: invalid suffix "N" on integer constant
    8 |         if(N<M*2) ans=(int)((M-2N)/3)+N;
      |                                ^~
Language: C

#include<stdio.h>

int main()
{
	int N,M,ans;
	scanf("%d %d",N,M);
	if(N>=M*2) ans=N;
	if(N<M*2) ans=(int)((M-2N)/3)+N;
	
	printf("%d",ans);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:32: error: invalid suffix "N" on integer constant
    8 |         if(N<M*2) ans=(int)((M-2N)/3)+N;
      |                                ^~
Language: C

#include<stdio.h>

Int main()
{
	int N,M,ans;
	scanf("%d %d",N,M);
	if(N>=M*2) ans=N;
	if(N<M*2) ans=(M-2N)/3+N;
	
	printf("%d",ans);
	return 0;
}

Compiler output:
main.c:3:1: error: unknown type name 'Int'; did you mean 'int'?
    3 | Int main()
      | ^~~
      | int
main.c: In function 'main':
main.c:8:26: error: invalid suffix "N" on integer constant
    8 |         if(N<M*2) ans=(M-2N)/3+N;
      |                          ^~
Language: Java

import java.util.Scanner;
class Main{
  public static void main(String[] args) {
  Scanner scan =  new Scanner(System.in);
 long a = scan.nextlong();
 long b = scan.nextlong();
 long c = b-a*2;
 long d = c/4;
   System.out.println(a+d);
  }
}

Compiler output:
Main.java:5: error: cannot find symbol
 long a = scan.nextlong();
              ^
  symbol:   method nextlong()
  location: variable scan of type Scanner
Main.java:6: error: cannot find symbol
 long b = scan.nextlong();
              ^
  symbol:   method nextlong()
  location: variable scan of type Scanner
2 errors
Language: C++

#include <iostream>

int main() {
int N;
std::cin >> N;
int remainder = 1;
for (int i = 1; i <= N; i++) {
  remainder = remainder * i
  remainder %= 10e+9 +7;
}
std::cout << remainder << std::endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:28: error: expected ';' before 'remainder'
    8 |   remainder = remainder * i
      |                            ^
      |                            ;
    9 |   remainder %= 10e+9 +7;
      |   ~~~~~~~~~
Language: C++

#include <iostream>
using namespace std;

int N, M;
int main(){
	cin >> N >> M;
	// long long int ns = N;
	// long long int rc = M - N * 2;
	// while(rc < 0){
	// 	ns --;
	// 	rc = M - rc*2;
	// }
	long long int ns = min(N, M/2);
	long long int rs = m - ns * 2;
	ns += rc / 4;
	cout << ns << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:28: error: 'm' was not declared in this scope
   14 |         long long int rs = m - ns * 2;
      |                            ^
a.cc:15:15: error: 'rc' was not declared in this scope; did you mean 'rs'?
   15 |         ns += rc / 4;
      |               ^~
      |               rs
Language: C++

#include <iostream>
using namespace std;

int main()
{
	__int64 N, M, cnt = 0;
	cin >> N >> M;

	if (N >= M * 2)
		cnt = N;
	else 
		cnt = N + (M - 2 * N) / 4;
	
	cout << cnt << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: '__int64' was not declared in this scope; did you mean '__int64_t'?
    6 |         __int64 N, M, cnt = 0;
      |         ^~~~~~~
      |         __int64_t
a.cc:7:16: error: 'N' was not declared in this scope
    7 |         cin >> N >> M;
      |                ^
a.cc:7:21: error: 'M' was not declared in this scope
    7 |         cin >> N >> M;
      |                     ^
a.cc:10:17: error: 'cnt' was not declared in this scope; did you mean 'int'?
   10 |                 cnt = N;
      |                 ^~~
      |                 int
a.cc:12:17: error: 'cnt' was not declared in this scope; did you mean 'int'?
   12 |                 cnt = N + (M - 2 * N) / 4;
      |                 ^~~
      |                 int
a.cc:14:17: error: 'cnt' was not declared in this scope; did you mean 'int'?
   14 |         cout << cnt << endl;
      |                 ^~~
      |                 int
Language: C++

#include<iostream>
using namespace std;
int main(){
	long long a,b;
	std::cin>>a>>b;
	if(a=>(b/2)){
		std::cout<<(b/2);
	}else{
		std::cout<<(a+((b-2a)/4));
	}
	}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:14: error: expected primary-expression before '>' token
    6 |         if(a=>(b/2)){
      |              ^
a.cc:9:35: error: unable to find numeric literal operator 'operator""a'
    9 |                 std::cout<<(a+((b-2a)/4));
      |                                   ^~
Language: C++

#include<iostream>
 int main ()
  {
      long long int n,m;
      //std::string s;

      std::cin>>n >> m /*>>c>>s*/;

      if (2*n>=m)
       {
          long long int j;
          j=m/2
      stdu:cout<<j /*<< " "*/ <<std::endl;
       }
      else
      {
        long long  int k;
        k=(m-2*n)/4;
      std::cout<<k+n /*<< " " << s */<<std::endl;
      }

      //std::cout<<d << " " << s <<std::endl;
 return 0;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:12:16: error: expected ';' before 'stdu'
   12 |           j=m/2
      |                ^
      |                ;
   13 |       stdu:cout<<j /*<< " "*/ <<std::endl;
      |       ~~~~
Language: Java

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long s = sc.nextInt();
		long c = sc.nextInt();

		long result = 0;
		if (c <= s * 2) {
			result = Math.round(c / 2);
			c = c % 2;
		} else {
			result = s;
			c = c - s * 2;
			result = result + c / 4;
		}

		System.out.println(result);
		sc.close();
	}
}

Compiler output:
Main.java:3: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

let id x = x
let (n,m) = Scanf.scanf "%d %d\n" (fun n m -> (n,m))
 
let sc s c x =
if (2*s) <= c then ((c-2*s),s) else (0,c/2)
 
let cx = sc n m 0
let c = fst cx
let x = snd cx
 
let ans = x + c/4
 
let () = Printf.printf "%d\n" ans

Compiler output:
a.cc:1:1: error: 'let' does not name a type
    1 | let id x = x
      | ^~~
Language: C

#include <stdio.h>

int main ()
{
  int ans=0,n,m,i;

  scanf("%d%d",&n,&m);
ans=n;
if(n*2<m)
{
  while(m-4>0)
{
  m-=4;
ans++;
}
printf("%d",ans);
return 0;
}


Compiler output:
main.c: In function 'main':
main.c:18:1: error: expected declaration or statement at end of input
   18 | }
      | ^
Language: C++

#include<stdio.h>
#include<stdlib.h>

long long int n,m,a,b,c;

int main(void){
scanf("%lld",n);
scanf("%lld",m);
a = n - m / 2;
if(a < 0){
b =  a / 4
}else{
b = n
} 
printf("%lld",b)

return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:11: error: expected ';' before '}' token
   11 | b =  a / 4
      |           ^
      |           ;
   12 | }else{
      | ~          
a.cc:13:6: error: expected ';' before '}' token
   13 | b = n
      |      ^
      |      ;
   14 | }
      | ~     
a.cc:15:17: error: expected ';' before 'return'
   15 | printf("%lld",b)
      |                 ^
      |                 ;
   16 | 
   17 | return 0;
      | ~~~~~~
Language: C

#include<stdio.h>
int main()
{
	int i,j,n,m;
	scanf("%d%d",&n,&m);
	if(2*n<=m)
	printf("%d",int(n+(m-2*n)*1.0/4));
	else printf("%d",int(n-(2*n-m)*1.0/4));

}

Compiler output:
main.c: In function 'main':
main.c:7:21: error: expected expression before 'int'
    7 |         printf("%d",int(n+(m-2*n)*1.0/4));
      |                     ^~~
main.c:8:26: error: expected expression before 'int'
    8 |         else printf("%d",int(n-(2*n-m)*1.0/4));
      |                          ^~~
Language: C++

#include <iostream>
#include <string>

using namespace std;



int main(void){
    long long N, M;
    cin >> N >> M;

    int total = 0;
    if(2*N <= M){
        total = N + (M - 2 * N) / 4;
    }
    else{
        total = floor(M / 2);
    }

    cout << total << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:17: error: 'floor' was not declared in this scope
   17 |         total = floor(M / 2);
      |                 ^~~~~
Language: C++

#include <iostream>
using namespace std;

int main()
{
	long long n;

	long long i;

	long long o;

	cin >> n;
	cin >> i;
	o = 1;


	if (n <= i * 2)

		o = n + (i - 2 * n) / 4;


	else  (i <= n / 2)
		o = i / 2;




	cout << o << endl;






}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:27: error: expected ';' before 'o'
   22 |         else  (i <= n / 2)
      |                           ^
      |                           ;
   23 |                 o = i / 2;
      |                 ~
Language: C++

#include <iostream>
using namespace std;

int main()
{
	long long n;

	long long i;

	long long o;

	cin >> n;
	cin >> i;
	o = 1;


	if (n <= i * 2)

		o = n + (i - 2 * n) / 4;


	else if (i =< n / 2)
		o = i / 2;

	else

		o = n;





	cout << o << endl;






}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:21: error: expected primary-expression before '<' token
   22 |         else if (i =< n / 2)
      |                     ^
Language: C++

#include <iostream>
using namespace std;

int main()
{
	long long n;

	long long i;

	long long o;

	cin >> n;
	cin >> i;
	o = 1;


	if (n <= i * 2)

		o = n + (i - 2 * n) / 4;


	else if (i < n/2)
		o=i/2

	else

		o = n;





	cout << o << endl;






}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:22: error: expected ';' before 'else'
   23 |                 o=i/2
      |                      ^
      |                      ;
   24 | 
   25 |         else
      |         ~~~~
Language: C++

#include <iostream>
using namespace std;
 
int main() {
	int n, m, scc;
	cin >> n >> m;
	
	if (n-m/2==0)scc=n;
	else if(n-m/2>0)scc=m/2;
	else if (n-m/2<0)scc=n+(m-n*2)/4;
	
	cout << scc << '/n';
	// your code goes here
	return 0;
}

Compiler output:
a.cc:3:1: error: extended character   is not valid in an identifier
    3 |  
      | ^
a.cc:12:24: warning: multi-character character constant [-Wmultichar]
   12 |         cout << scc << '/n';
      |                        ^~~~
a.cc:3:1: error: '\U000000a0' does not name a type
    3 |  
      | ^
Language: C

#include <stdio.h>

int main (void)
{
  int i,n,m,ans=0;

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

  if(n*2>=m)
  {
    ans+=m/2;
  }
  else
  {
    ans+=n;
    m=m-n*2;
    ans+=m/4
  }
  printf("%d",&ans);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:17:13: error: expected ';' before '}' token
   17 |     ans+=m/4
      |             ^
      |             ;
   18 |   }
      |   ~
Language: C++

#include<iostream>
using namespace std;

int main() {
  int s, c, x = 0;;
  cin >> s >> c;

  while(1){
    if(s < 1 || c < 2) break;
    if (s >= 1 || c >= 2) {
      x++;
      s -= 1;
      c -= 2;
    }
  }

  while(1) {
    if(c < 4) break;
    if(c >= 4) {
      x++;
      c -= 4;
    }
  }

  cout << x << endl
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:20: error: expected ';' before 'return'
   25 |   cout << x << endl
      |                    ^
      |                    ;
   26 | 
   27 |   return 0;
      |   ~~~~~~
Language: Java

import java.util.Scanner;

/**
 * Created by User on 2017/02/18.
 */
public class Main　{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        long n = scanner.nextLong();
        long m = scanner.nextLong();
        int count = 0;

        while (n > 0) {
            n--;
            m -= 2;
            count++;
        }
        while (m >= 4) {
            m-=4;
            count++;
        }

        System.out.println(count);
    }
}


Compiler output:
Main.java:6: error: illegal character: '\u3000'
public class Main?{
                 ^
1 error
Language: C++

#include <iostream>
using namespace std;

int main()
{
	_I64_MAX n;

	_I64_MAX i;

	_I64_MAX o;

	cin >> n;
	cin >> i;
	o = 1;
	

	if (n <= i * 2)

		o = n + (i - 2*n) / 4;


else

	o = n;





	cout << o << endl;


	



}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: '_I64_MAX' was not declared in this scope
    6 |         _I64_MAX n;
      |         ^~~~~~~~
a.cc:8:17: error: expected ';' before 'i'
    8 |         _I64_MAX i;
      |                 ^~
      |                 ;
a.cc:10:17: error: expected ';' before 'o'
   10 |         _I64_MAX o;
      |                 ^~
      |                 ;
a.cc:12:16: error: 'n' was not declared in this scope
   12 |         cin >> n;
      |                ^
a.cc:13:16: error: 'i' was not declared in this scope
   13 |         cin >> i;
      |                ^
a.cc:14:9: error: 'o' was not declared in this scope
   14 |         o = 1;
      |         ^
Language: C

#include<stdio.h>
#include<math.h>

int  main(void){
 int n,m,k,i=0;

 scanf("%d %d",&n,&m);
 while(n<m) {
  m=m-n*2; i++
  }
 k=m/4;
 
 printf("%d",i+k);
 
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:9:15: error: expected ';' before '}' token
    9 |   m=m-n*2; i++
      |               ^
      |               ;
   10 |   }
      |   ~
Language: C++

#include <iostream>
using namespace std;
 
int main() {
	int n, m, scc;
	cin >> n >> m;
	
	if (n==m/2)scc=n;
	else if (n>m/2)scc=m/2;
	else if (n<m/2)scc=n+(m-n*2)/4;
	
	cout << scc << '\n';
	// your code goes here
	return 0;
}

Compiler output:
a.cc:3:1: error: extended character   is not valid in an identifier
    3 |  
      | ^
a.cc:3:1: error: '\U000000a0' does not name a type
    3 |  
      | ^
Language: C++

#include <iostream>
using namespace std;

int mod = 1000000007;
int main() {
	// your code goes here
	int N;
	cin >> N;
	for(long long i= 1,j = 1;i <= N;i++){
		j *= i;
		j %= mod;
	}
	cout << j << endl;
	int N,M;
	cin >> N >> M;
	if(N/2 > M){
		cout << M+(N-2*M)/4 << endl;
	}
	else{
		cout << N/2 << endl;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:17: error: 'j' was not declared in this scope
   13 |         cout << j << endl;
      |                 ^
a.cc:14:13: error: redeclaration of 'int N'
   14 |         int N,M;
      |             ^
a.cc:7:13: note: 'int N' previously declared here
    7 |         int N;
      |             ^
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:9:14: error: expected ';' before 's'
    9 | if(b<0)s+=b*2
      |              ^
      |              ;
   10 | s+=b/4;
      | ~
Language: C++

#define FOR(i,a,b) for (int i=(a);i<(b);i++)
#define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define REP(i,n) for (int i=0;i<(n);i++)
#define RREP(i,n) for (int i=(n)-1;i>=0;i--)
#include<iostream>
#include<algorithm>
#include<cmath>
#include<string>
using namespace std;

int main(){
	long long N,M;
	
	cin >> N >> M;
	
	long long ans=0,nokori_c,ans_c;

	ans = ans + N;

	nokori_c = M - 2*N;
	if(nokori_c >= 0){
		ans_c = nokori_c/4;
		ans = ans + ans_c;
	}
	else(nokori_c < 0){
		ans_c = M/2;
		ans = ans + ans_c;		
	}



	if(M < 2){
		ans =0;
	}


	cout << ans << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:27: error: expected ';' before '{' token
   25 |         else(nokori_c < 0){
      |                           ^
      |                           ;
Language: Java

import java.util.Scanner;
import java.util.ArrayList;
import java.util.HashSet;
import java.lang.Integer;
import java.lang.StringBuilder;
import java.lang.Math;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        long N = in.nextLong();
        long M = in.nextLong();
        long result = 0;

        if (N == 0 && M == 0) {
            result = 0;
        } else if (N >= M / 2) {
            result = M / 2;
            N -= M / 2;
            result += N / 2;
        } else {
            result = N;
            M -= 2 * N;
            result += M / 4;
        }

        System.out.println(result);
    }
}
ozaw

Compiler output:
Main.java:30: error: reached end of file while parsing
ozaw
^
1 error
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:7:15: error: 'coutn' was not declared in this scope
    7 |     if(m<2*n) coutn << m/2 << endl;
      |               ^~~~~
Language: C

#include <stdio.h>
int main (void){
int M,N,a,b,c,d;
scanf("%d %d",&M,&N);
a=2*M+N;
b=(a-a%4)/4;
if (N>=2*b) printf("%d\n",b);
if (N<2*b) {
c=(N-N%2)/2;
printf("%d\n",c);
}
}
return 0;

Compiler output:
main.c:13:1: error: expected identifier or '(' before 'return'
   13 | return 0;
      | ^~~~~~
Language: C++

#include <stdio.h>
int main (void){
int M,N,a,b,c,d;
scanf("%d %d",&M,&N);
a=2*M+N;
b=(a-a%4)/4;
if (N>=2*b) printf("%d\n",b);
if (N<2*b) {
c=(N-N%2)/2;
printf("%d\n",c);
}
}
return 0;

Compiler output:
a.cc:13:1: error: expected unqualified-id before 'return'
   13 | return 0;
      | ^~~~~~
Language: C++

int main() {
	long n, m;
	std::cin >> n >> m;

	long cnt = 0;
	while (true) {
		if (n >= 1 && m >= 2) {
			n--;
			m -= 2;
			cnt++;
		}
		else if (n == 0 && m > 2){
			n++;
			m -= 2;
		}
		else {
			break;
		}
	}

	std::cout << cnt << std::endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:14: error: 'cin' is not a member of 'std'
    3 |         std::cin >> n >> m;
      |              ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | int main() {
a.cc:21:14: error: 'cout' is not a member of 'std'
   21 |         std::cout << cnt << std::endl;
      |              ^~~~
a.cc:21:14: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:21:34: error: 'endl' is not a member of 'std'
   21 |         std::cout << cnt << std::endl;
      |                                  ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | int main() {
Language: C++

#include <stdio.h>
int main (void){
int M,N,a,b,c,d;
scanf("%d %d",&M,&N);
a=2*M+N;
b=(a-a%4)/4;
if (N>=2*b) printf("%d\n",b);
if (N<2*b) {
c=(N-N%2)/2;
printf("%d\n",c);
}
return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:12:10: error: expected '}' at end of input
   12 | return 0;
      |          ^
a.cc:2:16: note: to match this '{'
    2 | int main (void){
      |                ^
Language: C++

#include <iostream>
#include <cstdio>
#include <cstring>
#include <cstring>
#include <cstdlib>
#include <cmath>
#include <queue>
#include <map>
#include <stack>
#include <vector>
#include <algorithm>

using namespace std;

static const int INF = 1 << 28;

#define D(x) cout << x << endl;
#define d(x) cout << x;

typedef long long ll;
typedef vector<int> vi;
typedef vector<long long> vll;

typedef int long long;

signed main() {
  int n, m;
  cin >> n >> m;
  int s = n;

  int ans = 0;

  for (int i = 0; i < n; i++) {
    if (m > 1) {
      s--;
      m -= 2;
      ans++;
    }
  }
  
  ans += m / 4;
  
  D(ans);
  
  return 0;
}


Compiler output:
a.cc:24:18: error: declaration does not declare anything [-fpermissive]
   24 | typedef int long long;
      |                  ^~~~
Language: C++

#include<iostream>
#include<algorithm>
#include<vector>
#include<string>
#include<cmath>
#include<cstdio>
#include<queue>
#include<deque>
#include<map>
#include<stack>
#include<set>
#include<utility>
using namespace std;
typedef pair<int,int> ii;
typedef long long ll;
typedef pair<ll,ll> P;
typedef unsigned long long int ull;
int dy[]={1,0,-1,0};
int dx[]={0,1,0,-1};
const int MAXN=100000;
const int MAXE=100000;
const int MAXV=10000;
const ll INF=2e18;
const ll MOD=1e9+7;


int main(){
    int N;cin>>N;
    string S;cin>>S;
    vector<char> A(N+1);
    for(int k=0;k<2;++k){
        for(int h=0;h<2;++h){
            A.clear();
            A[0]=(k==0?'S':'W');
            A[1]=(h==0?'S':'W');
            for(int i=2;i<=N;++i){
                if((S[i-1]=='o'&&A[i-1]=='S')||(S[i-1]=='x'&&A[i-1]=='W')){
                    if(A[i-2]=='S') A[i]='S';
                    else A[i]='W';
                }else if((S[i-1]=='o'&&A[i-1]=='W')||(S[i-1]=='x'&&A[i-1]=='S')){
                    if(A[i-2]=='S') A[i]='W';
                    else A[i]='S';
                }
            }
            if(A[0]==A[N]){
              cout<<A.substr(0,N)<<endl;
                return 0;
            }
        }
    }
    cout<<-1<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:46:23: error: 'class std::vector<char>' has no member named 'substr'
   46 |               cout<<A.substr(0,N)<<endl;
      |                       ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using vi = vector<int>;
using vb = vector<bool>;
using vl = vector<long>;
using vs = vector<string>;
using vvi = vector<vector<int>>;
using vvb = vector<vector<bool>>;
using vvc = vector<vector<char>>;
using vvl = vector<vector<long>>;
using pii = pair<int, int>;
using pil = pair<int, long>;
using pll = pair<long, long>;
#define fix20 cout << fixed << setprecision(20)
#define YES cout << "Yes" << endl
#define NO cout << "No" << endl
#define rep(i,n) for(int i=0; i<(int)(n);i++)
#define REP(i,s,t) for(int i=s; i<t; i++)
#define RNG(i,s,t,u) for(int i=s; i<t; i+=u)
#define MOD 1000000007
#define all(vec) vec.begin(), vec.end()


bool check(vb &animal, string s){
  int n = s.size();
  REP(i,1,n-1){
    if(animal.at(i)){
      if(s.at(i) == 'o') animal.at(i+1) = animal.at(i-1);
      else animal.at(i+1) = (!animal.at(i-1));
    }else{
      if(s.at(i) == 'o') animal.at(i+1) = (!animal.at(i-1));
      else animal.at(i+1) = animal.at(i-1);
    }
    //cout << animal.at(i) << " " << s.at(i) << " " << animal.at(i-1) << " " << animal.at(i+1) << endl;
  }
  if(animal.at(n-1)){
    if(s.at(n-1) == 'o') return animal.at(0) == animal.at(n-2);
    else return animal.at(0) != animal.at(n-2);
  }else{
    if(s.at(n-1) == 'o') return animal.at(0) != animal.at(n-2);
    else return animal.at(0) == animal.at(n-2);
  }
}

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include <iostream>
#include <sstream>
#include <stack>
#include <iomanip>
#include <numeric>
#include <string>
#include <cstring>
#include <algorithm>
#include <functional>
#include <cstdlib>
#include <map>
#include <set>
#include <vector>
#include <utility>
#include <queue>
#include <cmath>

#define BEGIN(x) x.begin()
#define END(x) x.end()
#define ALL(x) BEGIN(x), END(x)
#define PAIR make_pair
#define VEC(type) vector<type >
#define endl '\n'

#define FOR(i, A, B) for(auto i = (A);i != (B); i++)
#define FORD(i, A, B) for(auto i = (A);i != (B); i--)

#define READRANGE(begin, end) FOR(it, begin, end) cin >> *it
#define READVEC(V) READRANGE(BEGIN(V), END(V))

using namespace std;

typedef long long lint;
typedef pair<int, int> Pii;
typedef pair<int, lint> Pil;
typedef pair<lint, lint> Pll;
typedef pair<lint, int> Pli;

template<class U, class V>
istream& operator >>(istream& in, pair<U, V>& pr) {
    return in >> pr.first >> pr.second;
}

// ---- BEGIN LIBRARY CODE ----
// ---- END LIBRARY CODE ----
void io_init()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
};

char guess(char ans, char before, char animal)
{
    char other = before == 'S' ? 'W' : 'S';
    if (animal == 'S') {
        return ans == 'o' ? before : other;
    } else {
        return ans == 'x' ? before : other;
    }
};

bool check(int i, string& Answer, const string& S)
{
    char now = guess(S[i - 1], Answer[i - 2], Answer[i - 1]);
    if (i == S.size()) {
        if (now != Answer[0])
            return false;

        now = guess(S[0], Answer.back(), answer[0]);
        return now == Answer[1];
    }

    Answer[i] = now;
    return check(i + 1, Answer, S);
};

int main(int argc, char **argv)
{
    io_init();

    // Actual program code starts here.
    int N;
    string S;
    cin >> N >> S;
    string Answer(N, '_');
    for (char c1 : "SW")
        for (char c2 : "SW") {
            Answer[0] = c1;
            Answer[1] = c2;
            if (check(2, Answer, S)) {
                cout << Answer << endl;
                return 0;
            }
        }

    cout << -1 << endl;
    return 0;
};

Compiler output:
a.cc: In function 'bool check(int, std::string&, const std::string&)':
a.cc:69:42: error: 'answer' was not declared in this scope; did you mean 'Answer'?
   69 |         now = guess(S[0], Answer.back(), answer[0]);
      |                                          ^~~~~~
      |                                          Answer
Language: C++

#include <bits/stdc++.h>

using namespace std;

#define lli long long int
#define REP(i,s,n) for(int i=s;i<n;i++)
#define MOD 1000000007
#define NUM 2520
#define INF (1LL<<50)
#define DEBUG 0
#define mp(a,b) make_pair(a,b)
#define SORT(V) sort(V.begin(),V.end())
#define PI (3.141592653589794)

#define S 0
#define W 1

signed main(){

	lli n;
	cin>>n;

	string s;
	cin>>s;

	REP(start,0,2)REP(side,0,2){
		lli ans[100100];
		REP(i,0,100100)ans[i]=-1;
		ans[0]=start;
		ans[1]=side;
		ans[n+2] = (ans[0]+ans[1]+(s.at(i)!='o'))%2;
		
		REP(i,1,n){
			ans[i+1] = (ans[i-1]+ans[i]+(s.at(i)!='o'))%2;
		}
		if(ans[0]==ans[n] && ans[n-1] == ans[n+2]){
			REP(i,0,n){
				if(ans[i]==0)cout<<"S";
				else cout<<"W";
			}
			cout<<endl;
			return 0;
		}
	}
	cout<<-1<<endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:49: error: 'i' was not declared in this scope
   31 |                 ans[n+2] = (ans[0]+ans[1]+(s.at(i)!='o'))%2;
      |                                                 ^
Language: C++

#include<iostream>
#include <cstring>
#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>
#include<functional>
#include<assert.h>
#include<numeric>
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)
using ll = long long;
const int inf=1e9+7;
const ll longinf=1LL<<60 ;
const ll mod=1e9+7 ;
const int MAX_C = 2010;
long long Com[MAX_C][MAX_C] = {0};

int main(){
  int N; string S; cin >> N >> S;
  int ans[N][4];
  if(S[0]=='o'){
    ans[0][0]=0; ans[1][0]=0; ans[N-1][0]=0;
    ans[0][1]=0; ans[1][1]=1; ans[N-1][1]=1;
    ans[0][2]=1; ans[1][2]=1; ans[N-1][2]=0;
    ans[0][3]=1; ans[1][3]=0; ans[N-1][3]=1;
  }
  else{
    ans[0][0]=0; ans[1][0]=1; ans[N-1][0]=0;
    ans[0][1]=0; ans[1][1]=0; ans[N-1][1]=1;
    ans[0][2]=1; ans[1][2]=1; ans[N-1][2]=1;
    ans[0][3]=1; ans[1][3]=0; ans[N-1][3]=0;
  }
  rep(i, 4){
    ans[N][i] = ans[0][i];
  }
  bool check[4];
  rep(i, 4)check[i]=true;
  for(int i=1; i<N; i++){
    if(S[i]=='o'){
      rep(j, 4){
        if(i==N-2 || i==N-1){
          if(ans[i][j] && ans[i-1][j]==ans[i+1][j]) check[j]=false;
          if(!(ans[i][j]) && ans[i-1][j]!=ans[i+1][j]) check[j]=false;
        }
        if(ans[i][j]) ans[i+1][j]=1-ans[i-1][j];
        else ans[i+1][j]=ans[i-1][j];                         
      }
    }
    else{
      rep(j, 4){
        if(i==N-2 || i==N-1){
          if(ans[i][j] && ans[i-1][j]!=ans[i+1][j]) check[j]=false;
          if(!(ans[i][j]) && ans[i-1][j]==ans[i+1][j]) check[j]=false;
        }
        if(ans[i][j]) ans[i+1][j]=ans[i-1][j];
        else ans[i+1][j]=1-ans[i-1][j];
      }
    }
  }
  rep(i, 4){
    if(check[i]){
      rep(j, N){
        if(ans[j][i]) cout << 'W'; else cout << 'S';
      }
      cout << endl; return 0;
    }
  }
  cout << -1 << endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:78:22: error: expected '}' at end of input
   78 |   cout << -1 << endl;
      |                      ^
a.cc:28:11: note: to match this '{'
   28 | int main(){
      |           ^
Language: C++

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

int main(){
  int N;
  string s;
  cin>>N>>s;
  vector<int> animal={1,-1};
  vector<int> ss(N);
  bool flag=false;
  for(int i=0;i<2;i++){
    for(int j=0;j<2;j++){
      int ss.at(0)=animal.at(i);
      int ss.at(1)=animal.at(j);
      for(int k=1;k<N-1;k++){
        int x;
        if(s.at(k)=='o'){
          x=1;
        }else{
          x=-1;
        }
        ss.at(k+1)=x*ss.at(k-1);
      }
      if(ss.at(N-1)*ss.at(0)==ss.at(1)){
        flag=true;
        break;
      }
    }
  }
  
  if(flag){
    for(int i=0;i<N;i++){
      if(ss.at(i)==1){
        cout<<'S';
      }else{
        cout<<'W';
      }
      cout<<endl;
    }
  }else{
    cout<<-1<<endl;
  }
}
  
      

Compiler output:
a.cc: In function 'int main()':
a.cc:13:13: error: expected initializer before '.' token
   13 |       int ss.at(0)=animal.at(i);
      |             ^
a.cc:14:13: error: expected initializer before '.' token
   14 |       int ss.at(1)=animal.at(j);
      |             ^
Language: C++

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

vecetor<bool> solve(int n, vector<bool> &s)
{
	for(int i = 0; i < 2; i++)
    {
    	for(int j = 0; j < 2; j++)
        {
        	vector<bool> res(n);
          	res[0] = i;
          	res[1] = j;
          	for(int k = 2; k < n; k++)
            	res[k] = (res[k - 2] ^ res[k - 1] ^ s[k - 1]);
          	if (s[n - 1] == (res[n - 2] ^ res[n - 1] ^ res[0]) &&
                    s[0] == (res[n - 1] ^ res[0] ^ res[1]))
                return res;
        }      
    }
  	return vector<bool>();
}

int main()
{
  	int n;
  	cin>>n;
  	vector<bool> v(n);
  	for(int i = 0; i < n; i++)
    {
    	char c;
      	cin>>c;
      	v[i] = (c == 'o');
    }
  	vector<bool> res = solve(n, v);
  	if(res.empty())
      	cout <<-1<<"\n";
  	else
    {
    	for (bool p : res) 
          cout << (p ? 'S' : 'W');
        cout << "\n";
    }
	return 0;
}


Compiler output:
a.cc:4:1: error: 'vecetor' does not name a type
    4 | vecetor<bool> solve(int n, vector<bool> &s)
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:34:28: error: 'solve' was not declared in this scope
   34 |         vector<bool> res = solve(n, v);
      |                            ^~~~~
Language: C++

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

vecetor<bool>(int n, vector<bool> &s)
{
	for(int i = 0; i < 2; i++)
    {
    	for(int j = 0; j < 2; j++)
        {
        	vector<bool> res(n);
          	res[0] = i;
          	res[1] = j;
          	for(int k = 2; k < n; k++)
            	res[k] = (res[k - 2] ^ res[k - 1] ^ s[k - 1]);
          	if (s[n - 1] == (res[n - 2] ^ res[n - 1] ^ res[0]) &&
                    s[0] == (res[n - 1] ^ res[0] ^ res[1]))
                return res;
        }      
    }
  	return vector<bool>();
}

int main()
{
  	int n;
  	cin>>n;
  	vector<bool> v(n);
  	for(int i = 0; i < n; i++)
    {
    	char c;
      	cin>>c;
      	v[i] = (c == 'o');
    }
  	vector<bool> res = solve(n, v);
  	if(res.empty())
      	cout <<-1<<"\n";
  	else
    {
    	for (bool p : res) 
          cout << (p ? 'S' : 'W');
        cout << "\n";
    }
	return 0;
}

Compiler output:
a.cc:4:1: error: 'vecetor' does not name a type
    4 | vecetor<bool>(int n, vector<bool> &s)
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:34:28: error: 'solve' was not declared in this scope
   34 |         vector<bool> res = solve(n, v);
      |                            ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
const int M=le6;
int a[M];
int main() 
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	#ifdef LOCAL
	freopen("input.txt","r",stdin);
	freopen("output.txt","w",stdout);
	#endif
	int n;
	string s;
	cin>>n>>s;
	s=s+s;
	for(int i1=0;i1<2;i1++)
	{
		for(int i2=0;i2<2;i2++)
		{
			a[0]=i1;
			a[1]=i2;
			for(int i=2;i<=n+1;i++)
			{
				if(s[i-1]=='o'&&a[i-1]==0)a[i]=1-a[i-2];
				if(s[i-1]=='o'&&a[i-1]==1)a[i]=a[i-2];
				if(s[i-1]=='x'&&a[i-1]==0)a[i]=a[i-2];
				if(s[i-1]=='x'&&a[i-1]==1)a[i]=1-a[i-2];
			
			}
			if(a[n]==a[0]&&a[n+1]==a[1]){
				for(int i=0;i<n;i++)
				{
					cout<<(a[i]?"S":"W");
				}
				return 0;
			}
		}
	}
}
cout<<-1;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:13: error: 'le6' was not declared in this scope
    5 | const int M=le6;
      |             ^~~
a.cc:6:7: error: size of array 'a' is not an integral constant-expression
    6 | int a[M];
      |       ^
a.cc:7:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
    7 | int main()
      |         ^~
a.cc:7:9: note: remove parentheses to default-initialize a variable
    7 | int main()
      |         ^~
      |         --
a.cc:7:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:8:1: error: a function-definition is not allowed here before '{' token
    8 | {
      | ^
Language: C++

// luogu-judger-enable-o2
#include<bits/stdc++.h>
#define lson (o<<1)
#define rson (o<<1|1)
#define fi first
#define sc second
#define dbg(x) cout<<#x<<" = "<<(x)<<endl;
typedef long long ll;
typedef unsigned int uint;
typedef unsigned long long ull;
using namespace std;
const double pi=acos(-1);
const double eps=1e-6;
inline int lowbit(int x){return x&(-x);}
inline int read(){
	int f=1,x=0;char ch;
	do{ch=getchar();if(ch=='-')f=-1;}while(ch<'0'||ch>'9');
	do{x=x*10+ch-'0';ch=getchar();}while(ch>='0'&&ch<='9');
	return f*x;
}
template<typename T> inline T max(T x,T y,T z){return max(max(x,y),z);}
template<typename T> inline T min(T x,T y,T z){return min(min(x,y),z);}
template<typename T> inline T sqr(T x){return x*x;}
template<typename T> inline void checkmax(T &x,T y){x=max(x,y);}
template<typename T> inline void checkmin(T &x,T y){x=min(x,y);}
template<typename T> inline void read(T &x){
x=0;T f=1;char ch;do{ch=getchar();if(ch=='-')f=-1;}while(ch<'0'||ch>'9');
do x=x*10+ch-'0',ch=getchar();while(ch<='9'&&ch>='0');x*=f;
}
template<typename A,typename B,typename C> inline A fpow(A x,B p,C yql){
	A ans=1;
	for(;p;p>>=1,x=1LL*x*x%yql)if(p&1)ans=1LL*x*ans%yql;
	return ans;
}
struct FastIO{
	static const int S=1310720;
	int wpos;char wbuf[S];
	FastIO():wpos(0){}
	inline int xchar(){
		static char buf[S];
		static int len=0,pos=0;
		if(pos==len)pos=0,len=fread(buf,1,S,stdin);
		if(pos==len)return -1;
		return buf[pos++];
	}
	inline int read(){
		int c=xchar(),x=0;
		while(c<=32&&~c)c=xchar();
		if(c==-1)return -1;
		for(;'0'<=c&&c<='9';c=xchar())x=x*10+c-'0';
		return x;
	}
}io;
//#define read io.read
int main()
{
	int n;
	string str;
	cin >> n >> str;
	for(int i=0;i<4;i++)
	{
		wlf[0]=i&1;
		wlf[1]=(i>>1)&1;
		for(int j=2;j<n;j++)
		{
			wlf[j]=wlf[j-1]^wlf[j-2]^(str[j-1]=='x');
		}
		bool flg=true;
		for(int i=0;i<n;i++)
		{
			int le=(i-1+n)%n;
			int ri=(i+1+n)%n;
			if(wlf[ri]!=wlf[i]^wlf[le]^(str[i]=='x'))
			{
				flg=false;
				break;
			}
		}
		if(flg)
		{
			for(int i=0;i<n;i++)
			{
				if(wlf[i]) cout << 'W';
				else cout << 'S';
			}
			cout << endl;
			return 0;
		}
	}
	cout << "-1";
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:62:17: error: 'wlf' was not declared in this scope
   62 |                 wlf[0]=i&1;
      |                 ^~~
Language: C++

#include <iostream>
#include <sstream>
#include <vector>
#include <cassert>
#include <string>
#include <algorithm>
#include <numeric>
#include <cmath>
#include <utility>
#include <tuple>
#include <regex>
#include <map>
#include <cstdint>
#include <set>
#include <deque>

using namespace std;
using ull = unsigned long long;
using ll = long long;

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }

#define EPS (1e-7)
#define ALL(x) begin(x), end(x)

string solve(const string s) {
	// 4種類試せばよい
	const auto ret1 = setanimals(s, "SS");
	if (ret1 != "-1") {
		return ret1;
	}
	const auto ret2 = setanimals(s, "SW");
	if (ret2 != "-1") {
		return ret2;
	}
	const auto ret3 = setanimals(s, "WS");
	if (ret3 != "-1") {
		return ret3;
	}
	const auto ret4 = setanimals(s, "WW");
	if (ret4 != "-1") {
		return ret4;
	}
	return "-1";
}
string setanimals(const string s, string animals) {
	ll index = 1;
	while (index < s.size() - 1) {
		const char now = s[index];
		const char nowanimal = animals[index];
		const char beforeanimal = animals[index - 1];
		// 途中の場合、矛盾しないように進める。
		if (
			((nowanimal == 'S') && (now == 'o')) ||
			((nowanimal == 'W') && (now == 'x'))
			) {
			animals += beforeanimal;
		} else {
			const string afteranimal = (beforeanimal == 'W') ? "S" : "W";
			animals += afteranimal;
		}
		index++;
	}

	const char now = s[index];
	const char nowanimal = animals[index];
	const char beforeanimal = animals[index - 1];
	const char afteranimal = animals[0];
	//最後は成立するか否かを返す
	if (
		((nowanimal == 'S') && (now == 'o') && (beforeanimal == afteranimal)) ||
		((nowanimal == 'S') && (now == 'x') && (beforeanimal != afteranimal)) ||
		((nowanimal == 'W') && (now == 'o') && (beforeanimal != afteranimal)) ||
		((nowanimal == 'W') && (now == 'x') && (beforeanimal == afteranimal))
		) {
		return animals;
	} else {
		return "-1";
	}
}

int main() {
	ll N;
	string s;
	cin >> N >> s;

	const string ans = solve(s);
	cout << ans << endl;

	return 0;
}

Compiler output:
a.cc: In function 'std::string solve(std::string)':
a.cc:28:27: error: 'setanimals' was not declared in this scope
   28 |         const auto ret1 = setanimals(s, "SS");
      |                           ^~~~~~~~~~
Language: C++

bool ok(char a,char x,char y,char b)
{
	if(x=='o'&&y=='S'&&a=='S'&&b=='S')return true;
	if(x=='o'&&y=='S'&&a=='W'&&b=='W')return true;
	if(x=='x'&&y=='S'&&a=='S'&&b=='W')return true;
	if(x=='x'&&y=='S'&&a=='W'&&b=='S')return true;
	if(x=='o'&&y=='W'&&a=='S'&&b=='W')return true;
	if(x=='o'&&y=='W'&&a=='W'&&b=='S')return true;
	if(x=='x'&&y=='W'&&a=='S'&&b=='S')return true;
	if(x=='x'&&y=='W'&&a=='W'&&b=='W')return true;
	return false;
}
void dfs(int now)
{
	if(now==n-1)
	{
		if(ok(t[n-2],s[n-1],t[n-1],t[0])&&ok(t[n-1],s[0],t[0],t[1]))end_(t);
		return;
	}
	int bef=now-1;
	int nxt=now+1;
	if(t[now]=='S')
	{
		if(s[now]=='x')t[nxt]=change(t[bef]);
		else t[nxt]=t[bef];
	}
	else
	{
		if(s[now]=='o')t[nxt]=change(t[bef]);
		else t[nxt]=t[bef];
	}
	dfs(now+1);
}
int main()
{
	cin>>n;
	cin>>s;
	t=s;
	for(int i=0;i<2;i++)
	{
		for(int j=0;j<2;j++)
		{
			t[0]=c[i];
			t[1]=c[j];
			dfs(1);
		}
	}
	cout<<"-1\n";
	return 0;
}

Compiler output:
a.cc: In function 'void dfs(int)':
a.cc:15:17: error: 'n' was not declared in this scope
   15 |         if(now==n-1)
      |                 ^
a.cc:17:23: error: 't' was not declared in this scope
   17 |                 if(ok(t[n-2],s[n-1],t[n-1],t[0])&&ok(t[n-1],s[0],t[0],t[1]))end_(t);
      |                       ^
a.cc:17:30: error: 's' was not declared in this scope
   17 |                 if(ok(t[n-2],s[n-1],t[n-1],t[0])&&ok(t[n-1],s[0],t[0],t[1]))end_(t);
      |                              ^
a.cc:17:77: error: 'end_' was not declared in this scope
   17 |                 if(ok(t[n-2],s[n-1],t[n-1],t[0])&&ok(t[n-1],s[0],t[0],t[1]))end_(t);
      |                                                                             ^~~~
a.cc:22:12: error: 't' was not declared in this scope
   22 |         if(t[now]=='S')
      |            ^
a.cc:24:20: error: 's' was not declared in this scope
   24 |                 if(s[now]=='x')t[nxt]=change(t[bef]);
      |                    ^
a.cc:24:39: error: 'change' was not declared in this scope
   24 |                 if(s[now]=='x')t[nxt]=change(t[bef]);
      |                                       ^~~~~~
a.cc:29:20: error: 's' was not declared in this scope
   29 |                 if(s[now]=='o')t[nxt]=change(t[bef]);
      |                    ^
a.cc:29:39: error: 'change' was not declared in this scope
   29 |                 if(s[now]=='o')t[nxt]=change(t[bef]);
      |                                       ^~~~~~
a.cc: In function 'int main()':
a.cc:36:9: error: 'cin' was not declared in this scope
   36 |         cin>>n;
      |         ^~~
a.cc:36:14: error: 'n' was not declared in this scope
   36 |         cin>>n;
      |              ^
a.cc:37:14: error: 's' was not declared in this scope
   37 |         cin>>s;
      |              ^
a.cc:38:9: error: 't' was not declared in this scope
   38 |         t=s;
      |         ^
a.cc:43:30: error: 'c' was not declared in this scope
   43 |                         t[0]=c[i];
      |                              ^
a.cc:48:9: error: 'cout' was not declared in this scope
   48 |         cout<<"-1\n";
      |         ^~~~
Language: C

#include<bits/stdc++.h>
using namespace std;
int n;
string s,t;
char c[2]={'W','S'};
void end_(string t)
{
	cout<<t;
	exit(0);
}
char change(char c)
{
	if(c=='S')
		return 'W';
	else
		return 'S';
}
bool ok(char a,char x,char y,char b)
{
	if(x=='o'&&y=='S'&&a=='S'&&b=='S')return true;
	if(x=='o'&&y=='S'&&a=='W'&&b=='W')return true;
	if(x=='x'&&y=='S'&&a=='S'&&b=='W')return true;
	if(x=='x'&&y=='S'&&a=='W'&&b=='S')return true;
	if(x=='o'&&y=='W'&&a=='S'&&b=='W')return true;
	if(x=='o'&&y=='W'&&a=='W'&&b=='S')return true;
	if(x=='x'&&y=='W'&&a=='S'&&b=='S')return true;
	if(x=='x'&&y=='W'&&a=='W'&&b=='W')return true;
	return false;
}
void dfs(int now,string t)
{
	if(now==n-1)
	{
		if(ok(t[n-2],s[n-1],t[n-1],t[0])&&ok(t[n-1],s[0],t[0],t[1]))end_(t);
		return;
	}
	int bef=now-1;
	int nxt=now+1;
	if(t[now]=='S')
	{
		if(s[now]=='x')t[nxt]=change(t[bef]);
		else t[nxt]=t[bef];
	}
	else
	{
		if(s[now]=='o')t[nxt]=change(t[bef]);
		else t[nxt]=t[bef];
	}
	dfs(now+1,t);
}
int main()
{
	cin>>n;
	cin>>s;
	t=s;
	for(int i=0;i<2;i++)
	{
		for(int j=0;j<2;j++)
		{
			t[0]=c[i];
			t[1]=c[j];
			dfs(1,t);
		}
	}
	cout<<"-1\n";
	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<bits/stdc++.h>
using namespace std;



int main(void){
  int n, flg=0;
  string s, ss, str[4]={"SS","SW","WS","WW"};
  cin >> n >> s;
  for(int i=0;i<4;++i){
    ss = str[i];
    for(int j=1;j<s.size();++j){
      if(ss[j]=="S"){
        if(ss[j-1]=="S"){
          if(s[j]=="o"){
            ss += "S";
          }else{
            ss += "W";
          }
        }else{
          if(s[j]=="o"){
            ss += "W";
          }else{
            ss += "S";
          }
        }
      }else{
        if(ss[j-1]=="S"){
          if(s[j]=="o"){
            ss += "W";
          }else{
            ss += "S";
          }
        }else{
          if(s[j]=="o"){
            ss += "S";
          }else{
            ss += "W";
          }
        }
      }
    }
    if(ss[0]=="S"){
      if(ss[1]==ss[n-1]){
        if(s[0]=='o'){
          flg = 1;
          break;
        }
      }else{
        if(s[0]=='x'){
          flg = 1;
          break;
        }
      }
    }else{
      if(ss[1]==ss[n-1]){
        if(s[0]=='x'){
          flg = 1;
          break;
        }
      }else{
        if(s[0]=='o'){
          flg = 1;
          break;
        }
      }
    }
  }
  if(flg) cout << ss << endl;
  else cout << "-1" << endl
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:15: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   13 |       if(ss[j]=="S"){
a.cc:14:19: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   14 |         if(ss[j-1]=="S"){
a.cc:15:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   15 |           if(s[j]=="o"){
a.cc:21:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   21 |           if(s[j]=="o"){
a.cc:28:19: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   28 |         if(ss[j-1]=="S"){
a.cc:29:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   29 |           if(s[j]=="o"){
a.cc:35:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   35 |           if(s[j]=="o"){
a.cc:43:13: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   43 |     if(ss[0]=="S"){
a.cc:70:28: error: expected ';' before '}' token
   70 |   else cout << "-1" << endl
      |                            ^
      |                            ;
   71 | }
      | ~