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

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n;cin>>n;
  string s;cin>>s;
  int a[n+1];
  int g=0,h;
  vector<int>b={1,1,2,2};
  vector<int>c={1,2,1,2};
  for(int j=0;j<4;j++){
    a[0]=b.at(j);a[1]=c.at(j);
    if(a[0]==1){
        if(a[1]==1){
          if(s[0]=='o'){
            h=1;
          }
          else{
            h=2;
          }
        }
        else{
          if(s[0]=='o'){
            h=2;
          }
          else{
            h=1;
          }
        }
      }
      else{
        if(a[1]==1){
          if(s[0]=='o'){
            h=2;
          }
          else{
            h=1;
          }
        }
        else{
          if(s[0]=='o'){
            h=1;
          }
          else{
            h=2;
          }
        }
      }
    }
    for(int i=1;i<n;i++){
      if(a[i]==1){
        if(a[i-1]==1){
          if(s[i]=='o'){
            a[i+1]=1;
          }
          else{
            a[i+1]=2;
          }
        }
        else{
          if(s[i]=='o'){
            a[i+1]=2;
          }
          else{
            a[i+1]=1;
          }
        }
      }
      else{
        if(a[i-1]==1){
          if(s[i]=='o'){
            a[i+1]=2;
          }
          else{
            a[i+1]=1;
          }
        }
        else{
          if(s[i]=='o'){
            a[i+1]=1;
          }
          else{
            a[i+1]=2;
          }
        }
      }
    }
    if(a[n]==a[0]&&h==a[n-1]){
      g=1;
      break;
    }
  }
  if(g==1){
    for(int i=0;i<n;i++){
      if(a[i]==1) cout<<"S";
      else cout<<"W";
    }
  }
  else if(g==0)
    cout<<-1<<endl;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:89:7: error: break statement not within loop or switch
   89 |       break;
      |       ^~~~~
a.cc: At global scope:
a.cc:92:3: error: expected unqualified-id before 'if'
   92 |   if(g==1){
      |   ^~
a.cc:98:3: error: expected unqualified-id before 'else'
   98 |   else if(g==0)
      |   ^~~~
a.cc:100:1: error: expected declaration before '}' token
  100 | }
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n;cin>>n;
  string s;cin>>s;
  int a[n+1];
  int g=0,h;
  vector<int>b={1,1,2,2};
  vector<int>c={1,2,1,2};
  for(int j=0;j<4;j++){
    a[0]=b.at(j);a[1]=c.at(j);
    if(a[0]==1){
        if(a[1]==1){
          if(s[i]=='o'){
            h=1;
          }
          else{
            h=2;
          }
        }
        else{
          if(s[i]=='o'){
            h=2;
          }
          else{
            h=1;
          }
        }
      }
      else{
        if(a[1]==1){
          if(s[i]=='o'){
            h=2;
          }
          else{
            h=1;
          }
        }
        else{
          if(s[i]=='o'){
            h=1;
          }
          else{
            h=2;
          }
        }
      }
    }
    for(int i=1;i<n;i++){
      if(a[i]==1){
        if(a[i-1]==1){
          if(s[i]=='o'){
            a[i+1]=1;
          }
          else{
            a[i+1]=2;
          }
        }
        else{
          if(s[i]=='o'){
            a[i+1]=2;
          }
          else{
            a[i+1]=1;
          }
        }
      }
      else{
        if(a[i-1]==1){
          if(s[i]=='o'){
            a[i+1]=2;
          }
          else{
            a[i+1]=1;
          }
        }
        else{
          if(s[i]=='o'){
            a[i+1]=1;
          }
          else{
            a[i+1]=2;
          }
        }
      }
    }
    if(a[n]==a[0]&&h==a[n-1]){
      g=1;
      break;
    }
  }
  if(g==1){
    for(int i=0;i<n;i++){
      if(a[i]==1) cout<<"S";
      else cout<<"W";
    }
  }
  else if(g==0)
    cout<<-1<<endl;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:14:16: error: 'i' was not declared in this scope
   14 |           if(s[i]=='o'){
      |                ^
a.cc:22:16: error: 'i' was not declared in this scope
   22 |           if(s[i]=='o'){
      |                ^
a.cc:32:16: error: 'i' was not declared in this scope
   32 |           if(s[i]=='o'){
      |                ^
a.cc:40:16: error: 'i' was not declared in this scope
   40 |           if(s[i]=='o'){
      |                ^
a.cc:89:7: error: break statement not within loop or switch
   89 |       break;
      |       ^~~~~
a.cc: At global scope:
a.cc:92:3: error: expected unqualified-id before 'if'
   92 |   if(g==1){
      |   ^~
a.cc:98:3: error: expected unqualified-id before 'else'
   98 |   else if(g==0)
      |   ^~~~
a.cc:100:1: error: expected declaration before '}' token
  100 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define INF (1<<29)
#define rep(i,n) for(int i=0;i<(n);i++)
int gcd(int a,int b){
	if(b==0)return a;
	return gcd(b,a%b);
}
int lcm(int a,int b){
	return a/gcd(a,b)*b;
}
int n,ok=-1;
string s;
string ans[4]={"SS","SW","WS","WW"};
signed main(){
    cin>>n>>s;
    rep(i,4){
        for(int j=1;j<n;j++){
            if((s[j]=='o')^(ans[i][j-1]==ans[i][j]))ans+='W';
            else ans[i]+='S';
        }
        if(ans[i][0]==ans[i][n]&&((s[0]=='o')^(ans[i][0]=='S')^(ans[i][1]==ans[i][n-1])))ok=i;
    }
    if(ok==-1)cout<<-1<<endl;
    else cout<<ans[ok].substr(0,n)<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:56: error: incompatible types in assignment of 'char' to 'std::string [4]' {aka 'std::__cxx11::basic_string<char> [4]'}
   20 |             if((s[j]=='o')^(ans[i][j-1]==ans[i][j]))ans+='W';
      |                                                     ~~~^~~~~
Language: C++

#include <cstdio>
#include <string>
using namespace std;

int n;
bool *isO;
char *ans;

void assign(char zero, char one) {
    char a[n];
    a[0] = zero;
    a[1] = one;
    for (int i = 2; i < n; i++) {
        if ((a[i-1] == 'S') == isO[i-1]) {
            a[i] = a[i-2];
        } else {
            if (a[i-2] == 'S') {
                a[i] = 'W';
            } else {
                a[i] = 'S';
            }
        }
    }

    if (a[0] == 'S' && a[n-1] == 'S') {
        if (!((a[1] == a[n-1]) ^ isO[0]) && !((a[0] == a[n-2]) ^ isO[n-1])) {
            strcpy(ans, a);
        }
    } else if (a[0] == 'S' && a[n-1] == 'W') {
        if (!((a[1] == a[n-1]) ^ isO[0]) && !((a[0] != a[n-2]) ^ isO[n-1])) {
            strcpy(ans, a);
        }
    } else if (a[0] == 'W' && a[n-1] == 'S') {
        if (!((a[1] != a[n-1]) ^ isO[0]) && !((a[0] == a[n-2]) ^ isO[n-1])) {
            strcpy(ans, a);
        }
    } else if (a[0] == 'W' && a[n-1] == 'W') {
        if (!((a[1] != a[n-1]) ^ isO[0]) && !((a[0] != a[n-2]) ^ isO[n-1])) {
            strcpy(ans, a);
        }
    }
    return;
}

int main() {
    scanf("%d", &n);

    char s[n];
    scanf("%s", s);
    
    ans = new char[n];

    isO = new bool[n];
    for (int i = 0; i < n; i++) {
        isO[i] = (s[i] == 'o');
    }

    char sw[] = "SW";

    for (int i = 0; i < 2; i++) {
        for (int j = 0; j < 2; j++) {
            if (*ans == 0) {
                assign(sw[i], sw[j]);
            }
        }
    }

    if (*ans == 0) { strcpy(ans, "-1"); }

    printf("%s\n", ans);

    return 0;
}

Compiler output:
a.cc: In function 'void assign(char, char)':
a.cc:27:13: error: 'strcpy' was not declared in this scope
   27 |             strcpy(ans, a);
      |             ^~~~~~
a.cc:3:1: note: 'strcpy' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    2 | #include <string>
  +++ |+#include <cstring>
    3 | using namespace std;
a.cc:31:13: error: 'strcpy' was not declared in this scope
   31 |             strcpy(ans, a);
      |             ^~~~~~
a.cc:31:13: note: 'strcpy' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
a.cc:35:13: error: 'strcpy' was not declared in this scope
   35 |             strcpy(ans, a);
      |             ^~~~~~
a.cc:35:13: note: 'strcpy' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
a.cc:39:13: error: 'strcpy' was not declared in this scope
   39 |             strcpy(ans, a);
      |             ^~~~~~
a.cc:39:13: note: 'strcpy' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
a.cc: In function 'int main()':
a.cc:68:22: error: 'strcpy' was not declared in this scope
   68 |     if (*ans == 0) { strcpy(ans, "-1"); }
      |                      ^~~~~~
a.cc:68:22: note: 'strcpy' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
Language: C++

#include<iostream>
#include<queue>
#include<string>
#include<algorithm>
#include<vector>
#include<map>
#include<cmath>
#include<functional>
#include<set>
using namespace std;
#define int long long
typedef pair<int, int>P;
int w[4][100005];
signed main() {
	int n; cin >> n;
	string s; cin >> s;
	memset(w, -1, sizeof(w));
	w[0][0] = 0, w[0][1] = 0;
	w[1][0] = 0, w[1][1] = 1;
	w[2][0] = 1, w[2][1] = 0;
	w[3][0] = 1, w[3][1] = 1;
	int fl = 0,ans=4;
	//0=sheep,1=wolf
	for (int i = 0; i < 4; i++) {
		for (int j = 1; j <= n; j++) {
			int m = j%n, l = (j + n - 1) % n, r = (j + 1) % n;
			if (w[i][m]) {//.wolf
				if (s[m] == 'o') {
					int a;
					if (w[i][l])a = 0;
					else a = 1;
					if (w[i][r] ==-1)w[i][r] = a;
					else if (w[i][r] != a)fl++;
				}
				else {
					int a;
					if (w[i][l])a = 1;
					else a = 0;
					if (w[i][r] == -1)w[i][r] = a;
					else if (w[i][r] != a)fl++;
				}
			}
			else {
				if (s[m] == 'x') {
					int a;
					if (w[i][l])a = 0;
					else a = 1;
					if (w[i][r] == -1)w[i][r] = a;
					else if (w[i][r] != a)fl++;
				}
				else {
					int a;
					if (w[i][l])a = 1;
					else a = 0;
					if (w[i][r] == -1)w[i][r] = a;
					else if (w[i][r] != a)fl++;
				}
			}
		}
		if (!fl)ans = i;
		fl = 0;
	}
	if (ans == 4)puts("-1");
	else {
		for (int i = 0; i < n; i++) {
			if (w[ans][i])cout << 'W';
			else cout << 'S';
		}
		cout << endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:9: error: 'memset' was not declared in this scope
   17 |         memset(w, -1, sizeof(w));
      |         ^~~~~~
a.cc:10:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    9 | #include<set>
  +++ |+#include <cstring>
   10 | using namespace std;
Language: C++

#include<iostream>
#include<string>
using namespace std;
int main(){
int n,a=0,b=[100000];
string s;
cin>>n>>s;
for(int i=1;i<n;i++)
{
if(s[i]=="x")
{a++
b[a]=i;}
}
if(a%2==1){
cout<<"-1";
return 0}
for(int i=0;i<a;i=i+2)
{
for(int j=b[i]+1;j<b[i+1];j++)
{s[j]="w";}}
cout<<s;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:14: error: expected identifier before numeric constant
    5 | int n,a=0,b=[100000];
      |              ^~~~~~
a.cc: In lambda function:
a.cc:5:21: error: expected '{' before ';' token
    5 | int n,a=0,b=[100000];
      |                     ^
a.cc: In function 'int main()':
a.cc:5:13: error: invalid user-defined conversion from 'main()::<lambda()>' to 'int' [-fpermissive]
    5 | int n,a=0,b=[100000];
      |             ^~~~~~~~
a.cc:5:13: note: candidate is: 'constexpr main()::<lambda()>::operator void (*)()() const' (near match)
    5 | int n,a=0,b=[100000];
      |             ^
a.cc:5:13: note:   no known conversion from 'void (*)()' to 'int'
a.cc:10:8: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   10 | if(s[i]=="x")
a.cc:11:5: error: expected ';' before 'b'
   11 | {a++
      |     ^
      |     ;
   12 | b[a]=i;}
      | ~    
a.cc:16:9: error: expected ';' before '}' token
   16 | return 0}
      |         ^
      |         ;
a.cc:19:12: error: invalid types 'int[int]' for array subscript
   19 | for(int j=b[i]+1;j<b[i+1];j++)
      |            ^
a.cc:19:21: error: invalid types 'int[int]' for array subscript
   19 | for(int j=b[i]+1;j<b[i+1];j++)
      |                     ^
a.cc:20:7: error: invalid conversion from 'const char*' to '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} [-fpermissive]
   20 | {s[j]="w";}}
      |       ^~~
      |       |
      |       const char*
Language: C++

#include<cstdio>
#include<iostream>
using namespace std;
char ans[10001],spe[10001];
int n;
bool c(char l)
{
switch(l)
{
case 'o':return true;
case 'x':return false;
case 'S':return true;
case 'W':return false;
}
}
char c(bool l){return (l?'S':'W');}
char func(int i,int j)
{return (c((c(spe[i])==c(ans[i]))==(c(spe[j]))));}
bool comp(char f,char s)
{
int i;
spe[0]=f;spe[1]=s;
for(i=2;i<n;i++)
{spe[i]==func[i];}
return (func(n-1,n-2)==spe[0]&&func(0,n-1)==spe[1]);
}
int main()
{
cin>>n>>ans;
if(comp('S','S'))
{cout<<spe;return 0;}
if(comp('S','W'))
{cout<<spe;return 0;}
if(comp('W','S'))
{cout<<spe;return 0;}
if(comp('W','W'))
{cout<<spe;return 0;}
cout<<"-1";
return 0;
}


Compiler output:
a.cc: In function 'bool comp(char, char)':
a.cc:24:16: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   24 | {spe[i]==func[i];}
      |                ^
a.cc:24:8: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   24 | {spe[i]==func[i];}
      |  ~~~~~~^~~~~~~~~
a.cc: In function 'bool c(char)':
a.cc:15:1: warning: control reaches end of non-void function [-Wreturn-type]
   15 | }
      | ^
Language: C++

#include<cstdio>
#include<iostream>
using namespace std;
char ans[10001],spe[10001];
int n;
bool c(char l)
{
switch(l)
{
case 'o':return true;
case 'x':return false;
case 'S':return true;
case 'W':return false;
}
}
char c(bool l){return (l?'S':'W');}
char func(int i,int j)
{return (c((c(spe[i])==c(ans[i]))==(c(spe[j]))));}
bool comp(char f,char s)
{
int i;
spe[0]=f;spe[1]=s;
for(i=2;i<n;i++)
{spe[i]=func[i];}
return (func(n-1,n-2)==spe[0]&&func(0,n-1)==spe[1]);
}
int main()
{
cin>>n>>ans;
if(comp('S','S'))
{cout<<spe;return 0;}
if(comp('S','W'))
{cout<<spe;return 0;}
if(comp('W','S'))
{cout<<spe;return 0;}
if(comp('W','W'))
{cout<<spe;return 0;}
cout<<"-1";
return 0;
}


Compiler output:
a.cc: In function 'bool comp(char, char)':
a.cc:24:15: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   24 | {spe[i]=func[i];}
      |               ^
a.cc:24:15: error: invalid conversion from 'char (*)(int, int)' to 'char' [-fpermissive]
   24 | {spe[i]=func[i];}
      |         ~~~~~~^
      |               |
      |               char (*)(int, int)
a.cc: In function 'bool c(char)':
a.cc:15:1: warning: control reaches end of non-void function [-Wreturn-type]
   15 | }
      | ^
Language: C++

#include<cstdio>
#include<iostream>
using namespace std;
char ans[10001],spe[10001];
bool c(char l)
{
switch(l)
{
case 'o':return true;
case 'x':return false;
case 'S':return true;
case 'W':return false;
}
}
char c(bool l){return (l?'S':'W');}
char func(int i,int j)
{return (c((c(spe[i])==c(ans[i]))==(c(spe[j]))));}
bool comp(char f,char s)
{
int i;
spe[0]=f;spe[1]=s;
for(i=2;i<n;i++)
{spe[i]=func[i];}
return (func(n-1,n-2)==spe[0]&&func(0,n-1)==spe[1]);
}
int main()
{
int n;
cin>>n>>ans;
if(comp('S','S'))
{cout<<spe;return 0;}
if(comp('S','W'))
{cout<<spe;return 0;}
if(comp('W','S'))
{cout<<spe;return 0;}
if(comp('W','W'))
{cout<<spe;return 0;}
cout<<"-1";
return 0;
}


Compiler output:
a.cc: In function 'bool comp(char, char)':
a.cc:22:11: error: 'n' was not declared in this scope
   22 | for(i=2;i<n;i++)
      |           ^
a.cc:23:15: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   23 | {spe[i]=func[i];}
      |               ^
a.cc:23:15: error: invalid conversion from 'char (*)(int, int)' to 'char' [-fpermissive]
   23 | {spe[i]=func[i];}
      |         ~~~~~~^
      |               |
      |               char (*)(int, int)
a.cc:24:14: error: 'n' was not declared in this scope
   24 | return (func(n-1,n-2)==spe[0]&&func(0,n-1)==spe[1]);
      |              ^
a.cc: In function 'bool c(char)':
a.cc:14:1: warning: control reaches end of non-void function [-Wreturn-type]
   14 | }
      | ^
Language: C++

#include<iostream>
using namespace std;
int main(){
int n;
string _s;
cin>>n>>_s;
bool s[100200] = {};
for(int i = 0;i < n;i++)s[i] = _s[i] == 'o' ? 0 : 1;
bool b[100200] = {};
for(int q = 0;q < 3;q++){
b[0] = q&1;
b[1] = q&2;

for(int i = 2;i < n;i++){
b[i] = b[i-2] ^ s[i-1];
}
if(b[n-1] == b[1] ^ s[0]){
for(int j = 0;j < n;j++){
cout << s[i] == 0 ? 'o' : 'x';
cout << endl;
}
return 0;
}
}
cout << -1 << endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:11: error: 'i' was not declared in this scope
   19 | cout << s[i] == 0 ? 'o' : 'x';
      |           ^
Language: C++

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

using namespace std;

char *search(char a, char b, char *s, int N) {
  char *ans = (char *)malloc(N + 1);
  ans[0] = a;
  ans[1] = b;
  for (int i = 0; i < N - 1; i++) {
    if (s[i + 1] == 'o' && ans[i + 1] == 'S') {
      ans[i + 2] = ans[i];
    } else if (s[i + 1] == 'x' && ans[i + 1] == 'W') {
      ans[i + 2] = ans[i];
    } else {
      if (ans[i] == 'S') {
        ans[i + 2] = 'W';
      } else {
        ans[i + 2] = 'S';
      }
    }
  }
  if (ans[0] == ans[N]) {
    ans[N] = '\0';
    return ans;
  } else {
    return NULL;
  }
}

int main() {
  int N;
  char *s = (char *)malloc(N + 1);
  cin >> N >> s;
  // scanf("%d\n%s", &N, s);上と同じ意味
  // cout << search('S', 'S', s, N) << endl;

  char *epoch0 = search('S', 'S', s, N);
  //char *epoch1 = search('S', 'W', s, N);
  //char *epoch2 = search('W', 'S', s, N);
  //char *epoch3 = search('W', 'W', s, N);

  /*
    if (epoch0 == NULL && epoch1 == NULL && epoch2 == NULL && epoch3 == NULL) {
      cout << -1 << endl;
    } else {
      cout << epoch0 << epoch1 << epoch2 << epoch3 << endl;
    }
  */
  if (epoch0 != NULL) {
    cout << epoch0 << endl;
  } else if (epoch1 != NULL) {
    cout << epoch1 << endl;
  } else if (epoch2 != NULL) {
    cout << epoch1 << endl;
  } else if (epoch3 != NULL) {
    cout << epoch3 << endl;
  } else {
    cout << -1 << endl;
  }

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:53:14: error: 'epoch1' was not declared in this scope; did you mean 'epoch0'?
   53 |   } else if (epoch1 != NULL) {
      |              ^~~~~~
      |              epoch0
a.cc:55:14: error: 'epoch2' was not declared in this scope; did you mean 'epoch0'?
   55 |   } else if (epoch2 != NULL) {
      |              ^~~~~~
      |              epoch0
a.cc:57:14: error: 'epoch3' was not declared in this scope; did you mean 'epoch0'?
   57 |   } else if (epoch3 != NULL) {
      |              ^~~~~~
      |              epoch0
Language: C++

#include <iostream>
#include <algorithm>
#include <cstdlib>
#include <cstring>
#include <cstdio>
#include <string>
#include <math.h>
#include <map>
#include <set>
#define sc scanf
#define pr printf
using namespace std;
typedef long long ll;
const int N = 100000+100;
bool ans[N];
char str[N];
bool hander_ans(int n);
bool is_right(int check_index , int rh , int lh);
int main()
{
    int i,j,n;
    while(~sc("%d",&n))
    {
        sc(" %s",str);

        ans[0] = 0 , ans[1] = 0;
        if(hander_ans(n)) continue;

        ans[0] = 0 , ans[1] = 1;
        if(hander_ans(n)) continue;

        ans[0] = 1 , ans[1] = 0;
        if(hander_ans(n)) continue;

        ans[0] = 1 , ans[1] = 1;
        if(hander_ans(n)) continue;

        pr("-1\n");
    }
    return 0;
}
bool is_right(int check_index , int rh , int lh)
{
    if(ans[check_index] == 0)
    {
        if(str[check_index] == 'o' ) return ans[rh] == ans[lh];
        if(str[check_index] == 'x' ) return ans[rh] != ans[lh];
    }
    else
    {
        if(str[check_index] == 'o' ) return ans[rh] != ans[lh];
        if(str[check_index] == 'x' ) return ans[rh] == ans[lh];
    }
    return 0;
}
bool hander_ans(int n)
{
    int i,j,flag = 0;
    for(i=2; i<n; i++)
    {
        if(ans[i-1] == 0)
        {
            if(str[i-1] == 'o')
                ans[i] = ans[i-2];
            else
                ans[i] = !ans[i-2];
        }
        else
        {
            if(str[i-1] == 'o')
                ans[i] = !ans[i-2];
            else
                ans[i] = ans[i-2];
        }
    }
    if((is_right(n-1,0,n-2) && is_right(0,1,n-1))
    {
        for(i=0; i<n; i++)
        {
            if(ans[i])
                  pr("W");
            else
                pr("S");
        }
        pr("\n");
        return 1;
    }
    return 0;
}


Compiler output:
a.cc: In function 'bool hander_ans(int)':
a.cc:76:50: error: expected ';' before '{' token
   76 |     if((is_right(n-1,0,n-2) && is_right(0,1,n-1))
      |                                                  ^
      |                                                  ;
   77 |     {
      |     ~                                             
a.cc:88:5: error: expected primary-expression before 'return'
   88 |     return 0;
      |     ^~~~~~
a.cc:87:6: error: expected ')' before 'return'
   87 |     }
      |      ^
      |      )
   88 |     return 0;
      |     ~~~~~~
a.cc:76:7: note: to match this '('
   76 |     if((is_right(n-1,0,n-2) && is_right(0,1,n-1))
      |       ^
a.cc:89:1: warning: no return statement in function returning non-void [-Wreturn-type]
   89 | }
      | ^
Language: C++

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

ll query(int left, int now, char c) {
  if(now == 0) {
    return (c == 'o') ? left : (left+1) % 2;
  }
  return (c == 'x') ? left : (left+1) % 2;
}

int arr[100001];
const int dir[4] = {{0,0},{0,1},{1,0},{1,1}};
string solve(ll n, string s) {

  for(int x=0; x<4;x++) {
    for(int i=0; i< n; i++) {
      arr[i] = -1;
    }
    arr[0] = dir[x][0];
    arr[1] = dir[x][1];

    for(int i = 2; i < n; ++i) {
      arr[i] = query(arr[i-2], arr[i-1], s[i-1]);
    }

    // check
    if(arr[0] == query(arr[n-2], arr[n-1], s[n-1])) {
      string ret="";
      for(int i=0;i<n;++i) {
        ret += (arr[i]==0)? "S" : "W";
      }
      return ret;
    }
  }
  return "-1";
}
int main() {
  ll n;
  string s;
  cin >> n >> s;
  cout<< solve(n, s)<<endl;
}


Compiler output:
a.cc:13:44: error: cannot convert '<brace-enclosed initializer list>' to 'const int' in initialization
   13 | const int dir[4] = {{0,0},{0,1},{1,0},{1,1}};
      |                                            ^
a.cc:13:44: error: cannot convert '<brace-enclosed initializer list>' to 'const int' in initialization
a.cc:13:44: error: cannot convert '<brace-enclosed initializer list>' to 'const int' in initialization
a.cc:13:44: error: cannot convert '<brace-enclosed initializer list>' to 'const int' in initialization
a.cc: In function 'std::string solve(ll, std::string)':
a.cc:20:20: error: invalid types 'const int[int]' for array subscript
   20 |     arr[0] = dir[x][0];
      |                    ^
a.cc:21:20: error: invalid types 'const int[int]' for array subscript
   21 |     arr[1] = dir[x][1];
      |                    ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef int64_t ll;
#define REP(i,m,n) for (int i=m;i<n;i++)
#define FOR(i,m,n,a) for(int i=m;i<n;i+=a)
const ll MOD=1e9+7;

int n;
int MAX=100000;
char p[MAX+2];
bool ans[MAX+2];

bool solve(){
  REP(i,2,(n+2)+1){
    if(p[i-1]=='o'){
      ans[i]=(ans[i-1])?ans[i-2]:(!ans[i-2]);
    }
    else{
      ans[i]=(ans[i-1])?(!ans[i-2]):ans[i-2];
    }
  }

  if(ans[0]==ans[n]&&ans[1]==ans[n+1]){
    REP(i,0,n){
      cout << (ans[i]?'S':'W');
    }
    cout << endl;
    return true;
  }
  return false;
}

int main(){
  cin >> n >> p;
  p[n]=p[0];p[n+1]=p[1];

  bool PAT[4][2]={{true,true},{true,false},{false,true},{false,false}};
  REP(i,0,4){
    ans[0]=PAT[i][0];
    ans[1]=PAT[i][1];

    if(solve()){
      return 0;
    }
  }
  cout << "-1" << endl;
  return 0;
}


Compiler output:
a.cc:10:11: error: size of array 'p' is not an integral constant-expression
   10 | char p[MAX+2];
      |        ~~~^~
a.cc:11:13: error: size of array 'ans' is not an integral constant-expression
   11 | bool ans[MAX+2];
      |          ~~~^~
Language: C

#include <stdio.h>

int main()
{
  int N;
  char S[100001];
  int syu[100001];
  int i;

  scanf("%d", &N);
  scanf("%s", &S);

  //  1 = S
  // -1 = W
  while(k < 4) {
    if(k == 0) {
      syu[0] = 1;
      syu[1] = 1;
    } else if(k == 1) {
      syu[0] = 1;
      syu[1] = -1;
    } else if(k == 2) {
      syu[0] = -1;
      syu[1] = 1;
    } else if(k == 3) {
      syu[0] = -1;
      syu[1] = -1;
    }
    
    for(i = 1; i < N; i++) {
      if(syu[i] == 1) {
	if(S[i] == 'o') {
	  syu[i+1] = syu[i-1];
	} else { //S[i] == 'x'
	  syu[i+1] = -syu[i-1];
	}
      } else { //syu[i] == -1
	if(S[i] == 'o') {
	  syu[i+1] = -syu[i-1];
	} else { //S[i] == 'x'
	  syu[i+1] = syu[i-1];
	}
      }
    }
    if(syu[0] != syu[N]) {
      k++;
    } else {
      for(i = 0; i < N; i++) {
	if(syu[i] == 1) {
	  printf("S");
	} else {
	  printf("W");
	}
      }
      printf("\n");
      return 0;
    }
  }
  
  printf("%d\n", -1);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:15:9: error: 'k' undeclared (first use in this function)
   15 |   while(k < 4) {
      |         ^
main.c:15:9: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include "stdafx.h"
#include <stdio.h>
int main () {
long long int N,i;
int a[10000],b[10000],c,j,k;
scanf("%lld", &N);
char S[10000],T[10000];
scanf("%s", S);
for(i=0;i<N;i++){
if (S[i]=='o') a[i]=1;
if (S[i]=='x') a[i]=-1;
}
for(j=-1;j<=1;j=j+2){
for(k=-1;k<=1;k=k+2){
b[0]=j, b[1]=k;
for(i=0;i<N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N-1]*b[N-1]==b[N-2]*b[0] && a[0]*b[0]==b[N-1]*b[1]) {
for(i=0;i<N;i++){
if(b[i]==1) T[i]='S';
if(b[i]==-1) T[i]='W';
}
for(i=0;i<N;i++){
printf("%c",T[i]);
}
printf("\n");
return 0;
}
}
}
printf("-1\n");
return 0;
}

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

#include <stdio.h>
int main () {
long long int N,i;
int a[10000],b[10000],c,j,k;
scanf("%lld", &N);
char S[N-1],T[N-1];
scanf("%s", S);
for(i=0;i<N;i++){
if (S[i]=='o') a[i]=1;
if (S[i]=='x') a[i]=-1;
}
 
for(j=-1;j<=1;j=j+2){
for(k=-1;k<=1;k=k+2){
b[0]=j, b[1]=k;
for(i=0;i<N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N-1]*b[N-1]==b[N-2]*b[0] && a[0]*b[0]==b[N-1]*b[1]) {
for(i=0;i<N;i++){
if(b[i]==1) T[i]='S';
if(b[i]==-1) T[i]='W';
}
printf("%s\n",T);
return 0;
}
}
}
printf("-1\n");
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:12:1: error: stray '\302' in program
   12 | <U+00A0>
      | ^~~~~~~~
Language: C

#include <stdio.h>
int main () {
long long int N,i;
int a[10001],b[10001],c,j,k;
scanf("%lld", &N);
char S[N+1],T[N+1];
scanf("%s", S);
for(i=1;i<=N;i++){
if (S[i-1]=='o') a[i]=1;
if (S[i-1]=='x') a[i]=-1;
}
 
for(j=-1;j<=1;j=j+2){
for(k=-1;k<=1;k=k+2){
b[1]=j, b[2]=k;
for(i=1;i<=N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]) {
for(i=1;i<=N;i++){
if(b[i]==1) T[i-1]='S';
if(b[i]==-1) T[i-1]='W';
}
printf("%s\n",T);
return 0;
}
}
}
printf("-1\n");
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:12:1: error: stray '\302' in program
   12 | <U+00A0>
      | ^~~~~~~~
Language: C

#include<stdio.h>

#define S 100003

int N;
char list[S];
char s[S];

char getInv(char c){
	if( c == 'S' ){
		return 'W';
	}
	return 'S';
}

void output(){
	int i;
	for( i = 1; i <= N; i++ ){ printf("%c", list[i]); }
	printf("\n");
	return;
}

/*
void say(){
	int r, i;
	const char Sans[2] = {'x', 'o'};
	const char Wans[2] = {'o', 'x'};
	list[0] = list[N];
	list[N+1] = list[1];
	for( i = 1; i <= N; i++ ){
		if( list[i-1] == list[i+1] ){
			r = 1;
		}else{
			r = 0;
		}
		if( list[i] == 'S' ){
			printf("%c", Sans[r]);
		}else{
			printf("%c", Wans[r]);
		}
	}
	printf("\n");
	return;
}
*/

int get(int i){
	int re = 0;
	if( i > N+1 ){
		if( list[1] == list[N+1] && list[2] == list[N+2] ){
			output();
			return 1;
		}
	}else if( i == 1 ){
		list[i+1] = 'S';
		re = get(i+1);
		if( re ){ return 1; }
		list[i+1] = 'W';
		re = get(i+1);
		if( re ){ return 1; }
	}else{
		if( list[i] == 'S' && s[i] == 'o' ){
			list[i+1] = list[i-1];
		}
		if( list[i] == 'S' && s[i] == 'x' ){
			list[i+1] = getInv(list[i-1]);
		}
		if( list[i] == 'W' && s[i] == 'o' ){
			list[i+1] = getInv(list[i-1]);
		}
		if( list[i] == 'W' && s[i] == 'x' ){
			list[i+1] = list[i-1];
		}
		re = get(i+1);
	}
	return re;
}

int main(){
	int i;
	scanf("%d\n", &N);
	for( i = 1; i <= N; i++ ){
		scanf("%c", &s[i]);
	}
	s[N+1] = S[1];
	list[1] = 'S';
	if( get(1) ){ return 0; }
	list[1] = 'W';
	if( get(1) ){ return 0; }
	printf("-1\n");
	return 0;
}



Compiler output:
main.c: In function 'main':
main.c:85:19: error: subscripted value is neither array nor pointer nor vector
   85 |         s[N+1] = S[1];
      |                   ^
Language: C

#include <stdio.h>
int main () {
int N,a[10000],b[10000],i;
scanf("%d", &N);
char S[N+1],T[N+1];
scanf("%s", S);
for(i=1;i<=N;i++){
if (S[i-1]=='o') a[i]=1;
if (S[i-1]=='x') a[i]=-1;
}
 
b[1]=1, b[2]=1;
for(i=1;i<=N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]) {
for(i=1;i<=N;i++){
if(b[i]==1) T[i-1]='S';
if(b[i]==-1) T[i-1]='W';
}
printf("%s\n",T);
return 0;
}
 
b[1]=1, b[2]=-1;
for(i=1;i<=N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]) {
for(i=1;i<=N;i++){
if(b[i]==1) T[i-1]='S';
if(b[i]==-1) T[i-1]='W';
}
printf("%s\n",T);
return 0;
}
 
b[1]=-1, b[2]=1;
for(i=1;i<=N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]) {
for(i=1;i<=N;i++){
if(b[i]==1) T[i-1]='S';
if(b[i]==-1) T[i-1]='W';
}
printf("%s\n",T);
return 0;
}
 
b[1]=-1, b[2]=-1;
for(i=1;i<=N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]) {
for(i=1;i<=N;i++){
if(b[i]==1) T[i-1]='S';
if(b[i]==-1) T[i-1]='W';
}
printf("%s\n",T);
return 0;
}
printf("%d\n",c-1);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:11:1: error: stray '\302' in program
   11 | <U+00A0>
      | ^~~~~~~~
main.c:25:1: error: stray '\302' in program
   25 | <U+00A0>
      | ^~~~~~~~
main.c:39:1: error: stray '\302' in program
   39 | <U+00A0>
      | ^~~~~~~~
main.c:53:1: error: stray '\302' in program
   53 | <U+00A0>
      | ^~~~~~~~
main.c:67:15: error: 'c' undeclared (first use in this function)
   67 | printf("%d\n",c-1);
      |               ^
main.c:67:15: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
int main () {
int N,a[10000],b[10000],i;
scanf("%d", &N);
char S[N+1],T[N+1];
scanf("%s", S);
for(i=1;i<=N;i++){
if (S[i-1]=='o') a[i]=1;
if (S[i-1]=='x') a[i]=-1;
}
 
b[1]=1, b[2]=1;
for(i=1;i<=N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]) {
for(i=1;i<=N;i++){
if(b[i]==1) T[i-1]='S';
if(b[i]==-1) T[i-1]='W';
}
printf("%s\n",T);
return 0;
}
 
b[1]=1, b[2]=-1;
for(i=1;i<=N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]&&c==0) {
for(i=1;i<=N;i++){
if(b[i]==1) T[i-1]='S';
if(b[i]==-1) T[i-1]='W';
}
printf("%s\n",T);
return 0;
}
 
b[1]=-1, b[2]=1;
for(i=1;i<=N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]&&c==0) {
for(i=1;i<=N;i++){
if(b[i]==1) T[i-1]='S';
if(b[i]==-1) T[i-1]='W';
}
printf("%s\n",T);
return 0;
}
 
b[1]=-1, b[2]=-1;
for(i=1;i<=N-2;i++){
if(b[i+1]*a[i+1]==1) b[i+2]=b[i];
if(b[i+1]*a[i+1]==-1) b[i+2]=-b[i];
}
if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]&&c==0) {
for(i=1;i<=N;i++){
if(b[i]==1) T[i-1]='S';
if(b[i]==-1) T[i-1]='W';
}
printf("%s\n",T);
return 0;
}
printf("%d\n",c-1);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:11:1: error: stray '\302' in program
   11 | <U+00A0>
      | ^~~~~~~~
main.c:25:1: error: stray '\302' in program
   25 | <U+00A0>
      | ^~~~~~~~
main.c:31:52: error: 'c' undeclared (first use in this function)
   31 | if(a[N]*b[N]==b[N-1]*b[1] && a[1]*b[1]==b[N]*b[2]&&c==0) {
      |                                                    ^
main.c:31:52: note: each undeclared identifier is reported only once for each function it appears in
main.c:39:1: error: stray '\302' in program
   39 | <U+00A0>
      | ^~~~~~~~
main.c:53:1: error: stray '\302' in program
   53 | <U+00A0>
      | ^~~~~~~~
Language: C++

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

int mod = 1000000007;
	bool ii[100000],oo[100000];

void p(){
	string str;
	for(int i = 0;i < N;i++){
		if(oo[i]) str += 'S';
		else str += 'W';
	}
	cout << str;
}

int main() {
	// your code goes here
	int N;
	string in,out;
	cin >> N;
	cin >> in;
	for(int i = 0;i < N;i++){
		ii[i] = (in[i] == 'o');
	}
	oo[0] = true;
	oo[1] = true;
	for(int i = 2;i < N-2;i++){
		oo[i] = (ii[i-1] != oo[i-2]);
	}
	if(oo[0] == (ii[N-1] != oo[N-2]) && (ii[0] != oo[N-1])){
		p();
		return 0;
	}
	oo[0] = false;
	oo[1] = true;
	for(int i = 2;i < N-2;i++){
		oo[i] = (ii[i-1] != oo[i-2]);
	}
	if(oo[0] == (ii[N-1] != oo[N-2]) && (ii[0] != oo[N-1])){
		p();
		return 0;
	}
	oo[0] = true;
	oo[1] = false;
	for(int i = 2;i < N-2;i++){
		oo[i] = (ii[i-1] != oo[i-2]);
	}
	if(oo[0] == (ii[N-1] != oo[N-2]) && (ii[0] != oo[N-1])){
		p();
		return 0;
	}
	oo[0] = false;
	oo[1] = false;
	for(int i = 2;i < N-2;i++){
		oo[i] = (ii[i-1] != oo[i-2]);
	}
	if(oo[0] == (ii[N-1] != oo[N-2]) && (ii[0] != oo[N-1])){
		p();
		return 0;
	}
	cout << -1 << endl;
	return 0;
}

Compiler output:
a.cc: In function 'void p()':
a.cc:10:27: error: 'N' was not declared in this scope
   10 |         for(int i = 0;i < N;i++){
      |                           ^
Language: C++

/*  .　　∧_∧
   　（ ´・ω・)
   　//＼￣￣旦＼
   ／/ ※ ＼＿＿＿＼
   ＼＼ 　※ 　※ 　※ ヽ
   　 ＼ヽ-＿_＿--＿__ヽ*/

#include <bits/stdc++.h>
#define rep(i,a,b) for(int i=(a); i<(b); i++)
#define all(c) (c).begin(),(c).end()
#define rall(c) (c).rbegin(),(c).rend()
#define sort(v,n) sort(v,v+n);
#define vsort(v) sort(v.begin(),v.end());
#define vvsort(v) sort(v.begin(),v.end(),greater<int>());
#define ll long long
#define pb(a) push_back(a)
#define fi first
#define se second
#define inf 999999999
using namespace std;
typedef pair<int,int> p;
typedef pair<ll,ll> lp;
typedef priority_queue<int> pq;
typedef priority_queue<int,vector<int>,greater<int> > rpq;
bool is_uruu(int y) {
        return y % 4 == 0 && (y % 100 != 0 || y % 400 == 0);
}
const ll MOD=1e9+7;
const double PI=acos(-1.0);
//-------------------------------------------------------------------------------------------------------------------------------------------//
/*void dfs(string t,int m){
	if(m==n){
		cout<<
		return ;
	}
	
}*/
string a[100000];
string b[100000];
int main(){
	int n;
	string s;
	cin>>n;
	cin>>s;
	}
	cout<<-1<<endl;
}

Compiler output:
a.cc:46:9: error: 'cout' does not name a type
   46 |         cout<<-1<<endl;
      |         ^~~~
a.cc:47:1: error: expected declaration before '}' token
   47 | }
      | ^
Language: C

#include <stdio.h>
int main(void){
    int how;
    scanf("%d\n",&how);
    char data[how];
    int loop1;
    int how_x=0;
    for(loop1=0;loop1<how;loop1++){
        scanf("%c",&data[loop1]);
        if(data[loop1]=='x')how_batu++;
    }
    if(x%2==1){
        printf("-1\n");
        return 0;
    }
    
    
}

Compiler output:
main.c: In function 'main':
main.c:10:29: error: 'how_batu' undeclared (first use in this function)
   10 |         if(data[loop1]=='x')how_batu++;
      |                             ^~~~~~~~
main.c:10:29: note: each undeclared identifier is reported only once for each function it appears in
main.c:12:8: error: 'x' undeclared (first use in this function)
   12 |     if(x%2==1){
      |        ^
Language: C++

#include<iostream>
#include<bits/stdc++.h>
#define pq priority_queue
#define Pi acos(-1.0)
using namespace std;
#define INFF 10000000007
#define MOD 1000000007
char s[100005];
int len;
bool life[100005],flag=0;
bool ok(bool x,bool y);
{
    life[0]=x;
    life[1]=y;
    for(int i=1;i<len;i++)
    {
        if(s[i]=='O')
        {
            if(life[i])
                life[i+1]=!life[i-1];
            else
                life[i+1]=life[i-1];
        }
        else
        {
            if(life[i]==0)
                life[i+1]=!life[i-1];
            else
                life[i+1]=life[i-1];
        }
    }
    if(s[0]=='O')
    {
        if(life[i])
            return life[1]!=life[len];
        else
            return life[1]==life[len];
    }
    else
    {
        if(life[i])
            return life[1]==life[len];
        else
            return life[1]!=life[len];
    }
}
int main()
{
    scanf("%s",s);
    len=strlen(s);
    len--;
    if(ok(0,0))
        flag=1;
    else
    {
        if(ok(0,1))
            flag=1;
        else
        {
            if(ok(1,0))
                flag=1;
            else
                flag=ok(1,1);
        }
    }
    if(!flag)
        printf("-1\n");
    else
    {
        for(int i=0;i<=len;i++)
        {
            if(life[i])
                printf("W");
            else
                printf("S");
        }
        printf("\n");
    }
    return 0;
}


Compiler output:
a.cc:12:1: error: expected unqualified-id before '{' token
   12 | {
      | ^
Language: C++



#include <bits/stdc++.h>
#include <string.h>
#include <vector>
//s#define rep(i, n) for (int i = 0; i < (n); i++)
#define MAX 10000

using namespace std;

#define ll long long
#define pb push_back
#define mp make_pair
#define all(a) (a).begin(),(a).end()
#define rep(i,a,n) for(int i=a; i<n; i++)
#define r0 return 0
#define INF (int)1e15
#define MOD 1000000007

 int gcd(int a,int b){

   if(a%b == 0)
    return b;
   else
    return gcd(b,a%b);

 }

 long long numbers[500005];

 int main(){

 long long n,m;
 cin>>n>>m;

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

 cout<<ans<<endl;

 return 0;
 }


Compiler output:
a.cc: In function 'int main()':
a.cc:37:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   37 |     ans = n;
      |     ^~~
      |     abs
a.cc:41:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   41 |     ans += m/2;
      |     ^~~
      |     abs
a.cc:44:8: error: 'ans' was not declared in this scope; did you mean 'abs'?
   44 |  cout<<ans<<endl;
      |        ^~~
      |        abs
Language: C++

using namespace std;

int main() {
    long long n,m;
    cin>>n>>m;
    int64_t count=0;
    if(n>=2*m){
        count=m/2;
    }else{
        m-=2*n;
        count=n+m/4;
    }
    cout<<count<<endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:5: error: 'cin' was not declared in this scope
    5 |     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 | using namespace std;
a.cc:6:5: error: 'int64_t' was not declared in this scope
    6 |     int64_t count=0;
      |     ^~~~~~~
a.cc:1:1: note: 'int64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
  +++ |+#include <cstdint>
    1 | using namespace std;
a.cc:8:9: error: 'count' was not declared in this scope
    8 |         count=m/2;
      |         ^~~~~
a.cc:11:9: error: 'count' was not declared in this scope
   11 |         count=n+m/4;
      |         ^~~~~
a.cc:13:5: error: 'cout' was not declared in this scope
   13 |     cout<<count<<endl;
      |     ^~~~
a.cc:13:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:13:11: error: 'count' was not declared in this scope
   13 |     cout<<count<<endl;
      |           ^~~~~
a.cc:13:18: error: 'endl' was not declared in this scope
   13 |     cout<<count<<endl;
      |                  ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
Language: C++

#include<iostream>
#include<string>
#include<vector>
#include<iomanip>
#include<algorithm>
#include<queue>
#include<stack>
#include<list>
#include<map>
#include<deque>
#include<math.h>
using namespace std;
#define ll long long
int main(){
    ll a,b;
    cin >> a >> b;
    cout << max(min(a,c/2),a+(c-2*a)/3);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:23: error: 'c' was not declared in this scope
   17 |     cout << max(min(a,c/2),a+(c-2*a)/3);
      |                       ^
Language: C++

#include<bits//stc++.h>
using namespace std;
typedef long long ll;
ll l,x,y,s = 0,d,n,m;
int main() {
    cin >> n >> m;
    if (2*n >= m) {
        cout << m / 2 << endl;
    }
    else {
        cout << n + (m - 2 * n) / 4 << endl;
    }
}

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

n, m = map(int, input().split())
cnt = 0
if n*2 <= m:
    m -= n*2
    cnt += n + m//4
else:
    cnt += m//2
print(cnt)

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

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:11:28: error: expected ';' before '}' token
   11 |         answer = answer + n
      |                            ^
      |                            ;
   12 |     }
      |     ~
Language: C

#include<stdio.h>
#include<algorithm>
#define ll long long
using namespace std;
int main()
{
	ll a,b;scanf("%lld%lld",&a,&b);
	printf("%lld\n",a + (b - a * 2) / 4);
	return 0;
}

Compiler output:
main.c:2:9: fatal error: algorithm: No such file or directory
    2 | #include<algorithm>
      |         ^~~~~~~~~~~
compilation terminated.
Language: C

import java.util.Scanner;

class Main{
    static Scanner scan=new Scanner(System.in);
    public static void main(String args[]){
        long n=scan.nextLong();
        long m=scan.nextLong();

        long x=n*2+m;
        System.out.println(x/4);
    }
}

Compiler output:
main.c:1:1: error: unknown type name 'import'
    1 | import java.util.Scanner;
      | ^~~~~~
main.c:1:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    1 | import java.util.Scanner;
      |            ^
main.c:3:1: error: unknown type name 'class'
    3 | class Main{
      | ^~~~~
main.c:3:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    3 | class Main{
      |           ^
Language: C

#include<iostream>
#include<stdio.h>
#include<vector>
#include<stdlib.h>
#include<algorithm>
#include<string>
#include<string.h>
#include<queue>
using namespace std;
int main(){
  long long n,m;
  cin >> n >> m;
  cout << min(n,m/2)+max((long long)0,m-2*n)/4 << endl;
  return 0;
}

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

#include<iostream>
using namespace std;
int main(){
	int N,M,x;
	cin>>n>>m;
	x=N*2;
	M=x+M;
	cout<<M/4;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:14: error: 'n' was not declared in this scope
    5 |         cin>>n>>m;
      |              ^
a.cc:5:17: error: 'm' was not declared in this scope
    5 |         cin>>n>>m;
      |                 ^
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<utility>

using namespace std;
typedef pair<int, int> P;

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


Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'll' was not declared in this scope
   10 |   ll n, m;cin>>n>>m;
      |   ^~
a.cc:10:16: error: 'n' was not declared in this scope
   10 |   ll n, m;cin>>n>>m;
      |                ^
a.cc:10:19: error: 'm' was not declared in this scope; did you mean 'tm'?
   10 |   ll n, m;cin>>n>>m;
      |                   ^
      |                   tm
Language: C++

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

typedef long long ll;
ll n, m;

int main() {
    ios::sync_with_stdio(false), cin.tie(0);
    cin >> n >> m;
    ll t =  max(0LL, (2 * m - n + 4) / 5);
    n += t;
    m -= 2t;
    cout << min(n, m / 2) << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:10: error: unable to find numeric literal operator 'operator""t'
   12 |     m -= 2t;
      |          ^~
Language: C++

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

typedef long long ll;
ll n, m;

int main() {
    ios::sync_with_stdio(false), cin.tie(0);
    cin >> n >> m;
    ll t =  max(0, (2 * m - n + 4) / 5);
    n += t;
    m -= 2t;
    cout << min(n, m / 2) << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:16: error: no matching function for call to 'max(int, ll)'
   10 |     ll t =  max(0, (2 * m - n + 4) / 5);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:10:16: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   10 |     ll t =  max(0, (2 * m - n + 4) / 5);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~
/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:10:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   10 |     ll t =  max(0, (2 * m - n + 4) / 5);
      |             ~~~^~~~~~~~~~~~~~~~~~~~~~~~
a.cc:12:10: error: unable to find numeric literal operator 'operator""t'
   12 |     m -= 2t;
      |          ^~
Language: C

#include<stdio.h>

int main(){
  long long int N,M;
  scanf("%lld %dll", &N, &M);
  
   if(n*2=>m){
     printf("%lld\n", m/2);
   }
   else{
     printf("%lld\n", n+(m-n*2)/4);
   }
   retrun 0;

}

Compiler output:
main.c: In function 'main':
main.c:7:7: error: 'n' undeclared (first use in this function)
    7 |    if(n*2=>m){
      |       ^
main.c:7:7: note: each undeclared identifier is reported only once for each function it appears in
main.c:7:11: error: expected expression before '>' token
    7 |    if(n*2=>m){
      |           ^
main.c:8:23: error: 'm' undeclared (first use in this function)
    8 |      printf("%lld\n", m/2);
      |                       ^
main.c:13:4: error: 'retrun' undeclared (first use in this function)
   13 |    retrun 0;
      |    ^~~~~~
main.c:13:10: error: expected ';' before numeric constant
   13 |    retrun 0;
      |          ^~
      |          ;