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

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<iostream>
#include<algorithm>
using namespace std;
int a[20];
long long s;
int main(void)
{
     int i,j,k,n;
     scanf("%d",&n);
     for(i=0;i<n;i++)
     {
          scanf("%d",&a[i]);
     }
     s=0;
     for(i=0;i<n;i++)
     {
          for(j=a[i]-1;j<=a[i]+1;j++)
          {
               if(j%2==1)
                    continue;
               int l=1;
               for(k=0;k<i;k++)
               {
                    if(a[k]%2==1)
                         l=l*1;
                    else
                         l=l*2;
               }
               if(n-1-i>0)
                    l=l*pow(3,n-1-i);
               s=s+l;
          }
     }
     printf("%lld\n",s);
     return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:33:25: error: 'pow' was not declared in this scope
   33 |                     l=l*pow(3,n-1-i);
      |                         ^~~
Language: C++

#include <iostream>
#include <string>
#include<windows.h>
using namespace std;
int i = 0,j=0,k=0;//ループ用

int main() {
	int n,q=1,temp=1;
	int a[10];
	cin >> n;
	for (i = 0; i < n;i++)cin >> a[i];
	for (i = 0; i < n; i++) {
		if (a[i] % 2 == 1)temp *= 1;
		else temp *= 2;
	}
	for (i = 0; i < n; i++)q *= 3;
	cout << q-temp;
	//Sleep(1000);
	return 0;
}

Compiler output:
a.cc:3:9: fatal error: windows.h: No such file or directory
    3 | #include<windows.h>
      |         ^~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,cnt=0;
    cin>>n;
    for(int i=0;i<n;i++)
     {
           int t; cin >>t;
            if(t%2==0)cnt++;
      }
     int ans = pow(3,n) - pow(2,cnt);
 count<<ans; return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:7: error: invalid operands of types '<unresolved overloaded function type>' and 'int' to binary 'operator<<'
   13 |  count<<ans; return 0;
      |  ~~~~~^~~~~
Language: C++

int main(){
    int N;
    cin >> N;
    int x;
    int p = 1;
    for (int i=0;i<N;i++){
        cin >> x;
        if (x%2==0) p *= 2;
    }
    cout << pow(3,N) - p;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin >> N;
      |     ^~~
a.cc:10:5: error: 'cout' was not declared in this scope
   10 |     cout << pow(3,N) - p;
      |     ^~~~
a.cc:10:13: error: 'pow' was not declared in this scope
   10 |     cout << pow(3,N) - p;
      |             ^~~
Language: C++

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

int main() {
    int n;
    cin >> n;

    int all = 1, odd = 1;
    for (int i = 0; i < n; i++) {
        int x;
        cin >> x;
        all *= 3;
        if (v[i] ^ 1) odd *= 2;
    }

    cout << all - odd << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:13: error: 'v' was not declared in this scope
   13 |         if (v[i] ^ 1) odd *= 2;
      |             ^
Language: C

for (i=0;i<N;i++) {
 scanf("%d",buf[i])
}


Compiler output:
main.c:1:1: error: expected identifier or '(' before 'for'
    1 | for (i=0;i<N;i++) {
      | ^~~
main.c:1:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | for (i=0;i<N;i++) {
      |           ^
main.c:1:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before '++' token
    1 | for (i=0;i<N;i++) {
      |               ^~
Language: C++

#include<iostream>
#include<cmath>
#include<vector>
#include<new>
#include<cstddef>
using namespace std;
std::bad_alloc

int main(){
    int N,mai;
    long long way,ways;
    vector<int> A(N-1);

    for(int i=0;i<N;i++){
        cin >> A[i];
    }

    for(int i=0;i<N;i++){
        if(A[i]%2==0){
            mai=mai+2;
        }
        else{
            mai=mai+1;
        }
    }

    way=pow(3,N);
    ways=way-mai;

    cout << ways << endl;

    return 0;

}

Compiler output:
a.cc:7:1: error: two or more data types in declaration of 'main'
    7 | std::bad_alloc
      | ^~~
Language: C++

#include<iostream>
#include<cmath>
#include<vector>
#include<new>
#include <stdlib.h>
using namespace std;
std::bad_alloc

int main(){
    int N,mai;
    long long way,ways;
    vector<int> A(N-1);

    for(int i=0;i<N;i++){
        cin >> A[i];
    }

    for(int i=0;i<N;i++){
        if(A[i]%2==0){
            mai=mai+2;
        }
        else{
            mai=mai+1;
        }
    }

    way=pow(3,N);
    ways=way-mai;

    cout << ways << endl;

    return 0;

}

Compiler output:
a.cc:7:1: error: two or more data types in declaration of 'main'
    7 | std::bad_alloc
      | ^~~
Language: C++

#include<iostream>
#include<cmath>
#include<vector>
#include<new>
#include <stdlib>
using namespace std;
std::bad_alloc

int main(){
    int N,mai;
    long long way,ways;
    vector<int> A(N-1);

    for(int i=0;i<N;i++){
        cin >> A[i];
    }

    for(int i=0;i<N;i++){
        if(A[i]%2==0){
            mai=mai+2;
        }
        else{
            mai=mai+1;
        }
    }

    way=pow(3,N);
    ways=way-mai;

    cout << ways << endl;

    return 0;

}

Compiler output:
a.cc:5:10: fatal error: stdlib: No such file or directory
    5 | #include <stdlib>
      |          ^~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<cmath>
#include<vector>
#include<new>
#include<malloc>
#include <stdlib>
using namespace std;
std::bad_alloc

int main(){
    int N,mai;
    long long way,ways;
    vector<int> A(N-1);

    for(int i=0;i<N;i++){
        cin >> A[i];
    }

    for(int i=0;i<N;i++){
        if(A[i]%2==0){
            mai=mai+2;
        }
        else{
            mai=mai+1;
        }
    }

    way=pow(3,N);
    ways=way-mai;

    cout << ways << endl;

    return 0;

}

Compiler output:
a.cc:5:9: fatal error: malloc: No such file or directory
    5 | #include<malloc>
      |         ^~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<cmath>
#include<vector>
#include<new>
#include<new.h>
using namespace std;
class bad_alloc : public exception {  
    bad_alloc();
virtual ~bad_alloc();

int ThrowBadAlloc(size_t)
{
    throw bad_alloc();
    return 0;
}

};  


int main(){
    int N,mai;
    long long way,ways;
    vector<int> A(N-1);

    for(int i=0;i<N;i++){
        cin >> A[i];
    }

    for(int i=0;i<N;i++){
        if(A[i]%2==0){
            mai=mai+2;
        }
        else{
            mai=mai+1;
        }
    }

    way=pow(3,N);
    ways=way-mai;

    cout << ways << endl;



}

Compiler output:
a.cc:5:9: fatal error: new.h: No such file or directory
    5 | #include<new.h>
      |         ^~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<vector>

using namespace std;

int main(){
    int N,mai;
    long way,ways;
    vector<int> A(N-1);

    for(int i=0;i<N;i++){
        cin >> A[i];
    }

    for(int i=0;i<N;i++){
        if(A[i]%2==0){
            mai=mai+2;
        }
        else{
            mai=mai+1;
        }
    }

    way=pow(3,N);
    ways=way-mai;

    cout << ways << endl;



}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:9: error: 'pow' was not declared in this scope
   24 |     way=pow(3,N);
      |         ^~~
Language: C++

#include <iostream>
#include <string>

using namespace std;

int snum[10][3];

int rnum[2][59049];

int get_pc(int n)
{
	int r = 1;
	for (int i = 0; i < n; i++)
		r *= 3;
	return r;
}

int main()
{
	int N;
	cin >> N;
	for (int i = 0; i < N; i++)
	{
		int num;
		cin >> num;
		if (num % 2)
		{
			snum[i][0] = 0;
			snum[i][1] = 1;
			snum[i][2] = 0;
		}
		else
		{
			snum[i][0] = 1;
			snum[i][1] = 0;
			snum[i][2] = 1;
		}
	}
	memcpy(rnum[1], snum[0], sizeof(snum[0]));
	for (int i = 1; i < N; i++)
	{
		memcpy(rnum[0], rnum[1], sizeof(rnum[1]));
		for (int j = 0; j < get_pc(i); j++)
		{
			for (int k = 0; k < 3; k++)
			{
				rnum[1][j * 3 + k] = rnum[0][j] * snum[i][k];
			}
		}
	}
	int count = 0;
	for (int i = 0; i < get_pc(N); i++)
	{
		if (!rnum[1][i])
			count++;
	}
	printf("%d\n", count);
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:39:9: error: 'memcpy' was not declared in this scope
   39 |         memcpy(rnum[1], snum[0], sizeof(snum[0]));
      |         ^~~~~~
a.cc:2:1: note: 'memcpy' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    1 | #include <iostream>
  +++ |+#include <cstring>
    2 | #include <string>
Language: C++

#include<iostream>
using namespace std;
int even(int i){
if(i%2==0)return 2;
else return 1;
}
int main(){
int N;
int i;
cin>>N;
int a[N];
cin >> a[N];
int c[N];
for(i=0;i<N;i++)c[i]=even(a[i]);
int p,q,res;
p=1;q=1;
for(i=0;i<N;i++){
p=3*p;
q=c[i]*q;
}
res = p - q;
if(N==1)res=3-even(a[0])
cout<<res;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:25: error: expected ';' before 'cout'
   22 | if(N==1)res=3-even(a[0])
      |                         ^
      |                         ;
   23 | cout<<res;
      | ~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int n,a[15],sum,prev = 1;
int main()
{
    cin >> n;
    for(int i=0;i<n;i++)cin >> a[i];
    for(int i=0;i<n;i++){
        if(a[i]%2==0){
            sum += prev*pow(3,n-i-1);
            prev *= 2;
        }
        else{
            sum += 2*prev*pow(3,n-1-i);
        }
    }
    cout << sum;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:20: error: reference to 'prev' is ambiguous
   10 |             sum += prev*pow(3,n-i-1);
      |                    ^~~~
In file included from /usr/include/c++/14/bits/stl_algobase.h:66,
                 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_iterator_base_funcs.h:244:5: note: candidates are: 'template<class _BidirectionalIterator> constexpr _BidirectionalIterator std::prev(_BidirectionalIterator, typename iterator_traits<_Iter>::difference_type)'
  244 |     prev(_BidirectionalIterator __x, typename
      |     ^~~~
a.cc:3:17: note:                 'int prev'
    3 | int n,a[15],sum,prev = 1;
      |                 ^~~~
a.cc:11:13: error: reference to 'prev' is ambiguous
   11 |             prev *= 2;
      |             ^~~~
/usr/include/c++/14/bits/stl_iterator_base_funcs.h:244:5: note: candidates are: 'template<class _BidirectionalIterator> constexpr _BidirectionalIterator std::prev(_BidirectionalIterator, typename iterator_traits<_Iter>::difference_type)'
  244 |     prev(_BidirectionalIterator __x, typename
      |     ^~~~
a.cc:3:17: note:                 'int prev'
    3 | int n,a[15],sum,prev = 1;
      |                 ^~~~
a.cc:14:22: error: reference to 'prev' is ambiguous
   14 |             sum += 2*prev*pow(3,n-1-i);
      |                      ^~~~
/usr/include/c++/14/bits/stl_iterator_base_funcs.h:244:5: note: candidates are: 'template<class _BidirectionalIterator> constexpr _BidirectionalIterator std::prev(_BidirectionalIterator, typename iterator_traits<_Iter>::difference_type)'
  244 |     prev(_BidirectionalIterator __x, typename
      |     ^~~~
a.cc:3:17: note:                 'int prev'
    3 | int n,a[15],sum,prev = 1;
      |                 ^~~~
Language: C++

#include<iostream>
using namespace std;
int even(int i){
if(i%2==0)return 0;
else return 1;
}
int main(){
int N;
int i;
cin>>N;
int a[N]
cin >> a[N];
int c[N];
for(i=0;i<N;i++){
c[i]=0;
if(even(a[i]-1))c[i]+=2;
else c[i]+=1;
}
int p,q,res;
p=1;q=1;
for(i=0;i<N;i++){
p=3*p;
q=c[i]*q;
}
res = p - q;
cout<<res;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:1: error: expected initializer before 'cin'
   12 | cin >> a[N];
      | ^~~
a.cc:16:9: error: 'a' was not declared in this scope
   16 | if(even(a[i]-1))c[i]+=2;
      |         ^
Language: C++

#include <bits/stdc++.h>

#define INF ll_MAX

using namespace std;

ll main(void){
	ll n;
	cin >> n;
	vector<ll> a(n,0);

	vector<bool> odd(100,true);

	for(ll i = 0;i < n;i++){
		cin >> a[i];
		if(a[i]%2 == 0)odd[i] = false;
	}

	ll ans = 0;
	for(ll i = 0;i < n;i++){
		ll temp = 1;
		for(ll j = 0;j < n;j++){
			if(j < i){
				if(a[j] == 1){
					continue; 
				}else if(odd[j]){
					continue;
				}else{
					temp *= 2;
				}
			}else if(j == i){
				if(a[j] == 1){
					continue; 
				}else if(odd[j]){
					temp *= 2;;
				}else{
					continue;
				}
			}else{
				if(a[j] == 1){
					temp *= 2; 
				}else{
					temp *= 3;;
				}				
			}
		}
	ans += temp;
	}



	cout << ans << endl;

	return 0;
}

Compiler output:
a.cc:7:1: error: 'll' does not name a type
    7 | ll main(void){
      | ^~
Language: C++

print3**(@a=glob<>)-2**grep$_%2,@a

Compiler output:
a.cc:1:10: error: stray '@' in program
    1 | print3**(@a=glob<>)-2**grep$_%2,@a
      |          ^
a.cc:1:33: error: stray '@' in program
    1 | print3**(@a=glob<>)-2**grep$_%2,@a
      |                                 ^
a.cc:1:1: error: 'print3' does not name a type
    1 | print3**(@a=glob<>)-2**grep$_%2,@a
      | ^~~~~~
Language: C++

#include<iostream>
using namespace std;
int even(int i){
if(i%2==0)return 0;
else return 1;
}
int main(){
int N;
int i;
int a[10];
cin>>N;
cin >> a[10];
int c[N];
for(i=0;i<N;i++){
c[i]=0;
if(even(a[i]-1)){
c[i]+=2;
else c[i]+=1;
}
}
int p,q,res;
p=1;q=1;
for(i=0;i<N;i++){
p=3*p;
q=c[i]*q;
}
res = p - q;
cout<<res;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:1: error: expected '}' before 'else'
   18 | else c[i]+=1;
      | ^~~~
a.cc:16:17: note: to match this '{'
   16 | if(even(a[i]-1)){
      |                 ^
a.cc: At global scope:
a.cc:22:1: error: 'p' does not name a type
   22 | p=1;q=1;
      | ^
a.cc:22:5: error: 'q' does not name a type
   22 | p=1;q=1;
      |     ^
a.cc:23:1: error: expected unqualified-id before 'for'
   23 | for(i=0;i<N;i++){
      | ^~~
a.cc:23:9: error: 'i' does not name a type
   23 | for(i=0;i<N;i++){
      |         ^
a.cc:23:13: error: 'i' does not name a type
   23 | for(i=0;i<N;i++){
      |             ^
a.cc:27:1: error: 'res' does not name a type
   27 | res = p - q;
      | ^~~
a.cc:28:1: error: 'cout' does not name a type
   28 | cout<<res;
      | ^~~~
a.cc:29:1: error: expected unqualified-id before 'return'
   29 | return 0;
      | ^~~~~~
a.cc:30:1: error: expected declaration before '}' token
   30 | }
      | ^
Language: C++

#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<iomanip>
#include<algorithm>
#include<cmath>
#include<math.h>
#include<functional>
using namespace std;

int main() {
	int n, a, prime = 0;
	vector<int> v;
	cin >> n;
	for (int i = 0; i < n; i++) {
		cin >> a;
		if (a % 2 == 0)prime++;
		v.push_back(a);
	}
	long long ans = 1,counter = 0;
	for (unsigned i = 0; i < v.size(); i++) {
		if (v[i] == 1)ans *= 2;
		else if (v[i] == 100)ans *= 2;
		else ans *= 3;
	}
	for (unsigned i = 0; i < v.size(); i++) {
		if (v[i] % 2 == 0 && v[i] != 100)counter++;
	}
	cout << ans - long long(pow(2,counter)) << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:23: error: expected primary-expression before 'long'
   30 |         cout << ans - long long(pow(2,counter)) << endl;
      |                       ^~~~
Language: C++

#include<iostream>
using namespace std;
int even(int i){
if(i%2==0)return 0;
else return 1;
}
int main(){
int N;
int i;
int a[10];
cin>>N;
cin >> a[10];
int c[N];
for(i=0,i<N,i++){
c[i]=0;
if(even(a[i]-1)){
c[i]+=2;
else c[i]+=1;
}
}
int p,q,res;
p=1;q=1;
for(i=0;i<N;i++){
p=3*p;
q=c[i]*q;
}
res = p - q;
cout<<res;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:16: error: expected ';' before ')' token
   14 | for(i=0,i<N,i++){
      |                ^
      |                ;
a.cc:21:6: error: expected initializer before ',' token
   21 | int p,q,res;
      |      ^
a.cc:21:6: error: expected ';' before ',' token
   21 | int p,q,res;
      |      ^
      |      ;
a.cc:21:6: error: expected primary-expression before ',' token
a.cc:21:7: error: 'q' was not declared in this scope
   21 | int p,q,res;
      |       ^
a.cc:21:9: error: 'res' was not declared in this scope
   21 | int p,q,res;
      |         ^~~
a.cc:21:12: error: expected ')' before ';' token
   21 | int p,q,res;
      |            ^
      |            )
a.cc:14:4: note: to match this '('
   14 | for(i=0,i<N,i++){
      |    ^
a.cc:22:1: error: 'p' was not declared in this scope
   22 | p=1;q=1;
      | ^
a.cc:22:5: error: 'q' was not declared in this scope
   22 | p=1;q=1;
      |     ^
a.cc:27:1: error: 'res' was not declared in this scope
   27 | res = p - q;
      | ^~~
Language: C++

#include<iostream>
using namespace std;
int even(int i){
if(i%2==0)return 0;
else return 1;
}
int main(){
int N;
int i;
int a[10];
cin>>N;
cin >> a[10];
int c[N];
for(i=0,i<N,i++){
c[i]=0;
if(even(a[i]-1)){
c[i]+=2;
else c[i]+=1;
}
int p,q,res;
p=1;q=1;
for(i=0;i<N;i++){
p=3*p;
q=c[i]*q;
}
res = p - q;
cout<<res;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:16: error: expected ';' before ')' token
   14 | for(i=0,i<N,i++){
      |                ^
      |                ;
a.cc:29:2: error: expected primary-expression at end of input
   29 | }
      |  ^
a.cc:29:2: error: expected ';' at end of input
   29 | }
      |  ^
      |  ;
a.cc:29:2: error: expected primary-expression at end of input
a.cc:29:2: error: expected ')' at end of input
   29 | }
      |  ^
      |  )
a.cc:14:4: note: to match this '('
   14 | for(i=0,i<N,i++){
      |    ^
a.cc:29:2: error: expected statement at end of input
   29 | }
      |  ^
a.cc:29:2: error: expected '}' at end of input
a.cc:7:11: note: to match this '{'
    7 | int main(){
      |           ^
Language: C++

#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
using namespace std;
#define REP(i, a, n) for(int i=a; i<n; i++)
#define RREP(i, a, n) for(int i=n-1; i>=a; i--)
#define INF 1000000000
#define ll long long

int n, a[11];
int cnt = 0;
void check(int num) {
	if (num >= n) return;

	if (a[num] % 2 == 0) {
		cnt += pow(3.0, n - num - 1);
		check(num + 1);
		check(num + 1);
	}
	else {
		cnt += (2 * pow(3.0, n - num - 1));
		check(num + 1);
	}
}
int main()
{
	cin >> n;
	REP(i, 0, n) cin >> a[i];

	check(0);
	cout << cnt << endl;
	return 0;
}

Compiler output:
a.cc: In function 'void check(int)':
a.cc:17:24: error: 'pow' was not declared in this scope
   17 |                 cnt += pow(3.0, n - num - 1);
      |                        ^~~
a.cc:22:29: error: 'pow' was not declared in this scope
   22 |                 cnt += (2 * pow(3.0, n - num - 1));
      |                             ^~~
Language: C++

#include<iostream>
#include<string>
using namespace std;
int main() {
	int N;
	int A[N];
	int maxans=1;
	int count = 0;
	for (int i = 0; i < A; i++) {
		maxans *= 3;
	}
	int kisuu[N];
	for (int i = 0; i < A; i++) {
		if (A[i] % 2 == 0) {
			kisuu[i] = 2;
		}
		else {
			kisuu[i] = 1;
		}
	}
	int subnum = 1;
	for (int i = 0; i < A; i++) {
		subnum *= kisuu[i];
	}
	cout << maxans - subnum << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:27: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    9 |         for (int i = 0; i < A; i++) {
      |                         ~~^~~
a.cc:13:27: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   13 |         for (int i = 0; i < A; i++) {
      |                         ~~^~~
a.cc:22:27: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   22 |         for (int i = 0; i < A; i++) {
      |                         ~~^~~
Language: C++

#include<iostream>
#include<string>
using namespace std;
int main() {
	int N;
	int A[N];
	int maxans=1;
	int count = 0;
	for (int i = 0; i < A; i++) {
		maxans *= 3;
	}
	int kisuu[A];
	for (int i = 0; i < A; i++) {
		if (A[i] % 2 == 0) {
			kisuu[i] = 2;
		}
		else {
			kisuu[i] = 1;
		}
	}
	subnum = 1;
	for (int i = 0; i < A; i++) {
		subnum *= kisuu[i];
	}
	cout << maxans - subnum << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:27: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    9 |         for (int i = 0; i < A; i++) {
      |                         ~~^~~
a.cc:12:19: error: conversion from 'int*' to 'long unsigned int' in a converted constant expression
   12 |         int kisuu[A];
      |                   ^
a.cc:12:19: error: could not convert 'A' from 'int [N]' to 'long unsigned int'
   12 |         int kisuu[A];
      |                   ^
      |                   |
      |                   int [N]
a.cc:12:19: error: size of array 'kisuu' has non-integral type 'int [N]'
a.cc:13:27: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   13 |         for (int i = 0; i < A; i++) {
      |                         ~~^~~
a.cc:21:9: error: 'subnum' was not declared in this scope
   21 |         subnum = 1;
      |         ^~~~~~
a.cc:22:27: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   22 |         for (int i = 0; i < A; i++) {
      |                         ~~^~~
Language: C++

#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
#include<camth>
int count(std::vector<int>v2, bool f) {
	std::vector<int> v = v2;
	if (f)return pow(3, v2.size());
	else if (v.size() <= 1) { if (v[0] % 2 == 0)return 1; else return 2; }
	else {
		if (v2[0] % 2 == 0) { v.erase(v.begin()); return count(v, 1)+count(v,0)*2; }
		else { v.erase(v.begin()); return 2*count(v, 1)+count(v,0); }
	}
}
int main() {
	int n;
	std::cin >> n;
	std::vector<int>v(n);
	for (auto& i:v)std::cin >>i;
	std::cout << count(v, 0) << std::endl;
	 return 0;
}

Compiler output:
a.cc:5:9: fatal error: camth: No such file or directory
    5 | #include<camth>
      |         ^~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
int count(std::vector<int>v2, bool f) {
	std::vector<int> v = v2;
	if (f)return pow(3, v2.size());
	else if (v.size() <= 1) { if (v[0] % 2 == 0)return 1; else return 2; }
	else {
		if (v2[0] % 2 == 0) { v.erase(v.begin()); return count(v, 1)+count(v,0)*2; }
		else { v.erase(v.begin()); return 2*count(v, 1)+count(v,0); }
	}
}
int main() {
	int n;
	std::cin >> n;
	std::vector<int>v(n);
	for (auto& i:v)std::cin >>i;
	std::cout << count(v, 0) << std::endl;
	 return 0;
}

Compiler output:
a.cc: In function 'int count(std::vector<int>, bool)':
a.cc:7:22: error: 'pow' was not declared in this scope
    7 |         if (f)return pow(3, v2.size());
      |                      ^~~
Language: C++

#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <float.h>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <limits>
#include <locale>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <wchar.h>
#include <wctype.h>
#include <algorithm>
#include <bitset>
#include <cctype>
#include <cerrno>
#include <clocale>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <deque>
#include <exception>
#include <functional>
#include <map>
#include <ios>
#include <iosfwd>
#include <istream>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <utility>
#include <vector>
#include <cwchar>
#include <cwctype>
#include <complex.h>
#include <fenv.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stdint.h>
#include <tgmath.h>
#include <conio.h>
#include <numeric>
#include <list>
#include <windows.h>
#include <cfloat>
#include <climits>
#include <unordered_map>
#include <unordered_set>
using namespace std;

typedef long long ll;
typedef unsigned int ui;
typedef unsigned long long ull;
#define ui(n) (unsigned int)(n)
#define ll(n) (long long)(n)
#define ull(n) (unsigned long long)(n)
#define fl(n) (float)(n)
#define dou(n) (double)(n)

int n,a[11],ans;

inline void dfs(int ci,int res)
{
	if(ci==n) {if(res==0) ans++;return;}
	dfs(ci+1,res*(a[ci]-1)%2);
	dfs(ci+1,res*a[ci]%2);
	dfs(ci+1,res*(a[ci]+1)%2);
}

int main()
{
	cin>>n;
	for(int i=0;i<n;i++) cin>>a[i];
	dfs(0,1);
	cout<<ans;
	return 0;
}

Compiler output:
a.cc:53:10: fatal error: conio.h: No such file or directory
   53 | #include <conio.h>
      |          ^~~~~~~~~
compilation terminated.
Language: C

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

int main(void){
	int N = '0' + getchar();
	int a[10];
	for(int i=0; i<N; i++){
		a[i] = '0' + getchar();
	}

	int num=0; // にている列の数
	int odd=0, even=0; // a内の偶数、奇数の数
	int extra=1; // 似ている列のうち積が奇数のもの

	num = (int) pow(3.0, N);

	for(int i=0; i<N; i++){
		if(a[i]%2==0){
			even++;
		}
		else{
			odd++;
		}
	}

	extra = (int) (pow(1.0, odd) + pow(2.0, even));

	printf("%d\n", num-extra);
	return 0;
}


Compiler output:
main.c:1:2: error: stray '#' in program
    1 | w#include <stdio.h>
      |  ^
main.c:1:1: error: unknown type name 'w'
    1 | w#include <stdio.h>
      | ^
main.c:1:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | w#include <stdio.h>
      |           ^
main.c: In function 'main':
main.c:5:23: error: implicit declaration of function 'getchar' [-Wimplicit-function-declaration]
    5 |         int N = '0' + getchar();
      |                       ^~~~~~~
main.c:3:1: note: 'getchar' is defined in header '<stdio.h>'; this is probably fixable by adding '#include <stdio.h>'
    2 | #include <math.h>
  +++ |+#include <stdio.h>
    3 | 
main.c:28:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   28 |         printf("%d\n", num-extra);
      |         ^~~~~~
main.c:28:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:28:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:28:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C++

#include<iostream>	// 入出力
#include<stdio.h>	// printf()が使える 小数は%fで
#include<math.h>	// 数学の関数
#include<vector>	// 配列
#include<string>	// 文字列
#include<map>		// 連想配列
#include<stack>		// スタック
#include<queue>		// キュー
#include<algorithm> // ソートとか

using namespace std;

using ll = long long;



int main()
{

	int N; cin >> N;

	ll not = 1, all = 1;

	for (int i = 0; i < N; ++i)
	{
		int A; cin >> A;

		if (A % 2 == 0)
		{
			not*= 2;
		}
		all *= 3;
	}

	cout << all - not << endl;

	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:12: error: expected unqualified-id before 'not' token
   22 |         ll not = 1, all = 1;
      |            ^~~
a.cc:30:28: error: expected primary-expression before '*=' token
   30 |                         not*= 2;
      |                            ^~
a.cc:32:17: error: 'all' was not declared in this scope; did you mean 'll'?
   32 |                 all *= 3;
      |                 ^~~
      |                 ll
a.cc:35:17: error: 'all' was not declared in this scope; did you mean 'll'?
   35 |         cout << all - not << endl;
      |                 ^~~
      |                 ll
a.cc:35:27: error: expected primary-expression before '<<' token
   35 |         cout << all - not << endl;
      |                           ^~
Language: C++

#include <iostream>
using namespace std;
long long int kaizyou3(int n){
  if(n==1){
    return 1;
  }else{
    return kaizyou3(n-1)*3;
  }
}

main(){
  int n;
  cin >> n;
  int a[n];
  for(int i=;i<n;i++){
    cin >> a[i];
  }
  long long int ans;
  ans=kaizyou3(n);
  long long int flag=1;
  for(int i=0;i<n;i++){
    if(a[i]%2==1){
      flag*=2;
    }
  }
  ans-=flag;
  cout << ans << endl;
}


Compiler output:
a.cc:11:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:15:13: error: expected primary-expression before ';' token
   15 |   for(int i=;i<n;i++){
      |             ^
Language: C++

#include <iostream>
using namespace std;
int kaizyou3(int n){
  if(n==1){
    return 1;
  }else{
    return kaizyou3(n-1)*3;
  }
}

main(){
  int n;
  cin >> n;
  int a[n];
  for(int i=;i<n;i++){
    cin >> a[i];
  }
  long long int ans;
  ans=kaizyou3(n);
  int flag=1;
  for(int i=0;i<n;i++){
    if(a[i]%2==1){
      flag*=2;
    }
  }
  ans-=flag;
  cout << ans << endl;
}


Compiler output:
a.cc:11:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:15:13: error: expected primary-expression before ';' token
   15 |   for(int i=;i<n;i++){
      |             ^
Language: C++

#include <iostream>
using namespace std;
kaizyou3(int n){
  if(n==1){
    return 1;
  }else{
    return kaizyou3(n-1)*3;
  }
}

main(){
  int n;
  cin >> n;
  int a[n];
  for(int i=;i<n;i++){
    cin >> a[i];
  }
  long long int ans;
  ans=kaizyou3(n);
  int flag=1;
  for(int i=0;i<n;i++){
    if(a[i]%2==1){
      flag*=2;
    }
  }
  ans-=flag;
  cout << ans << endl;
}


Compiler output:
a.cc:3:1: error: ISO C++ forbids declaration of 'kaizyou3' with no type [-fpermissive]
    3 | kaizyou3(int n){
      | ^~~~~~~~
a.cc:11:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:15:13: error: expected primary-expression before ';' token
   15 |   for(int i=;i<n;i++){
      |             ^
Language: C++

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


using namespace std;


int main()
{

	int N, tmp, ans;

	cin >> N;
	tmp = 1;
	for (int i = 0; i < N; i++) {
		int n;
		cin >> n;
		if (n % 2 == 0) tmp *= 2;
	}
	cout << pow(3, N) - tmp << endl;
	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:17: error: 'pow' was not declared in this scope
   21 |         cout << pow(3, N) - tmp << endl;
      |                 ^~~
Language: C++


#include <bits/stdc++.h>
#define REP(i,n) for(LL i=0;i<(LL)(n);i++)
#define ALL(x) (x).begin(),(x).end()
#define LL long long
#define pii pair<LL,LL>
#define pll pair<LL,LL>

using namespace std;

int main(){

    LL n;cin>>n;

    LL a[n];REP(i,n)cin>>a[i];

    LL ans=1;
    REP(i,N)ans*=3;
    LL sub=1;
    REP(i,n)if(a[i]%2==0)sub*=2;
    cout<<ans-sub<<endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:11: error: 'N' was not declared in this scope
   18 |     REP(i,N)ans*=3;
      |           ^
a.cc:3:36: note: in definition of macro 'REP'
    3 | #define REP(i,n) for(LL i=0;i<(LL)(n);i++)
      |                                    ^
Language: C++

#include <bits/stdc++.h>
 
#define _overload(_1,_2,_3,name,...) name
#define _rep(i,n) _range(i,0,n)
#define _range(i,a,b) for(int i=(int)(a);i<(int)(b);++i)
#define rep(...) _overload(__VA_ARGS__,_range,_rep,)(__VA_ARGS__)
 
#define _rrep(i,n) _rrange(i,n,0)
#define _rrange(i,a,b) for(int i=(int)(a)-1;i>=(int)(b);--i)
#define rrep(...) _overload(__VA_ARGS__,_rrange,_rrep,)(__VA_ARGS__)
 
#define _all(arg) begin(arg),end(arg)
#define uniq(arg) sort(_all(arg)),(arg).erase(unique(_all(arg)),end(arg))
#define getidx(ary,key) lower_bound(_all(ary),key)-begin(ary)
#define clr(a,b) memset((a),(b),sizeof(a))
#define bit(n) (1LL<<(n))
 
// #define DEBUG
 
#ifdef DEBUG
    #define dump(...) fprintf(stderr, __VA_ARGS__)
#else
    #define dump(...)
#endif
 
template<class T>bool chmax(T &a, const T &b) { return (a<b)?(a=b,1):0;}
template<class T>bool chmin(T &a, const T &b) { return (b<a)?(a=b,1):0;}
 
using namespace std;
using ll=long long;
using vi=vector<int>;
using vll=vector<ll>;
 
const double EPS = 1e-10;
const double PI = acos(-1.0);
const ll inf =1LL << 62;
const ll mod=1000000007LL;
const int dx[4]={1,0,-1,0};
const int dy[4]={0,1,0,-1};
 
 
ll extgcd(ll a,ll b,ll& x,ll& y){x=1,y=0;ll g=a;if(b!=0) g=extgcd(b,a%b,y,x),y-=a/b*x;return g;}
ll ADD(const ll &a, const ll &b,const ll &mod) { return (a+b)%mod;}
ll SUB(const ll &a, const ll &b,const ll &mod) { return (a-b+mod)%mod;}
ll MUL(const ll &a, const ll &b,const ll &mod) { return (1LL*a*b)%mod;}
ll DIV(const ll &a, const ll &b,const ll &mod) {ll x,y; extgcd(b,mod,x,y);return MUL(a,(x+mod)%mod,mod);}
 
random_device rd;
mt19937 mt(rd());
uniform_int_distribution<int> dice(1,6);
uniform_real_distribution<double> score(0.0,10.0);

int main(void){
    cin.tie(0);
    ios::sync_with_stdio(false);

    int n; cin >> n;
    vi a(n);
    vector<vll> dp(n + 1, vll(2));
    dp[0][0] = 1;
    rep(i, n){
        rep(j, 2){
            int& cur = dp[i][j];
            if(cur == 0) continue;

            if(j == 0){
                if(a[i] % 2){
                    dp[i + 1][1] += cur * 1;
                    dp[i + 1][0] += cur * 2;
                }
                else {
                    dp[i + 1][1] += cur * 2;
                    dp[i + 1][0] += cur * 1;
                }
            }
            else {
                dp[i + 1][1] += cur * 3;
            }
        }
    }

    cout << dp[n][1] << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:63:31: error: cannot bind non-const lvalue reference of type 'int&' to a value of type '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'}
   63 |             int& cur = dp[i][j];
      |                               ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define _GLIBCXX_DEBUG
#define rep(i, from, to) for (int i = from; i < (to); ++i)
#define mp(x,y) make_pair(x,y)
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()
using ll = long long;
using vin=vector<int>;
using vll=vector<ll>;
using P = pair<int, int>;
const int inf=1e9+7;
const ll INF=1e18;
template <typename T> void chmin(T &a, T b) { a = min(a, b); }
template <typename T> void chmax(T &a, T b) { a = max(a, b); }

int main() {
解説の方が超綺麗

Compiler output:
a.cc: In function 'int main()':
a.cc:18:1: error: '\U000089e3\U00008aac\U0000306e\U000065b9\U0000304c\U00008d85\U00007dba\U00009e97' was not declared in this scope
   18 | 解説の方が超綺麗
      | ^~~~~~~~~~~~~~~~
a.cc:18:17: error: expected '}' at end of input
   18 | 解説の方が超綺麗
      |                 ^
a.cc:17:12: note: to match this '{'
   17 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  string s; cin >> s;
  n = s.size();
  int res = 0;
  for(int i=0, j = n-1; i<j;){
    if(s[i] == s[j]) ++i, --j;
    else if(s[i] == 'x' and s[j] != 'x') res++, i++;
    else if(s[j] == 'x' and s[j] != 'x') res++, j--;
    else res = -1;
  }
  
  cout << res << endl;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'n' was not declared in this scope
    6 |   n = s.size();
      |   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  string s; cin >> s;
  n = s.size();
  int res = 0;
  for(int i=0, j = n-1; i<j){
    if(s[i] == s[j]) ++i, --j;
    else if(s[i] == 'x' and s[j] != 'x') res++, i++;
    else if(s[j] == 'x' and s[j] != 'x') res++, j--;
    else res = -1;
  }
  
  cout << res << endl;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'n' was not declared in this scope
    6 |   n = s.size();
      |   ^
a.cc:8:28: error: expected ';' before ')' token
    8 |   for(int i=0, j = n-1; i<j){
      |                            ^
      |                            ;
Language: C++

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

int main(){
  string s; cin >> s;
  n = s.size();
  int res = 0;
  for(int i=0; j = n-1; i<j){
    if(s[i] == s[j]) ++i, --j;
    else if(s[i] == 'x' and s[j] != 'x') res++, i++;
    else if(s[j] == 'x' and s[j] != 'x') res++, j--;
    else res = -1;
  }
  
  cout << res << endl;
}
  
    

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'n' was not declared in this scope
    6 |   n = s.size();
      |   ^
a.cc:8:16: error: 'j' was not declared in this scope
    8 |   for(int i=0; j = n-1; i<j){
      |                ^
Language: C++

#include <bits/stdc++.h>
#define fi first
#define se second
#define pii pair<int,int>
#define pb push_back
#define mp make_pair
#define enter putchar('\n')
#define space putchar(' ')
//#define ivorysi
using namespace std;
typedef long long int64;
template<class T>
void read(T &res) {
    res = 0;T f = 1;char c = getchar();
    while(c < '0' || c > '9') {
        if(c == '-') f = -1;
        c = getchar();
    }
    while(c >= '0' && c <= '9') {
        res = res * 10 + c - '0';
        c = getchar();
    }
    res *= f;
}
template<class T>
void out(T x) {
    if(x < 0) {x = -x;putchar('-');}
    if(x >= 10) {
        out(x / 10);
    }
    putchar('0' + x % 10);
}
char s[100005];
int N;
int main() {
#ifdef ivorysi
    freopen("f1.in","r",stdin);
#endif
    scanf("%s",s + 1);
    N = strlen(s + 1);
    int p = 1,q = N;
    int ans = 0;
    while(p < q) {
        if(s[p] == s[q]) {++p;--q;}
        else {
            if(s[p] == 'x') {++p;++ans;}
            else if(s[q] == 'x') {--q;++ans;}
            else {puts("-1");return 0;}
        }
    }
    out(ans);enter;return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:51:29: error: expected '}' at end of input
   51 |     out(ans);enter;return 0;
      |                             ^
a.cc:35:12: note: to match this '{'
   35 | int main() {
      |            ^
Language: C++

#include<bits/stdc++.h>
#include<unordered_set>
#include<unordered_map>
#include <iostream>
#include <string>
#include <cmath>
using namespace std;
#define ll long long
#define rep(i, n) for (ll i = 0; i < (n); i++)
#define FOR(i,a,b) for(ll i=(a);i<(b);i++)
#define FORR(i,a,b)for(ll i=(a);i<=(b);i++)
#define repR(i,n) for(ll i=n;i>=0;i--)
#define all(v)(v).begin(),(v).end()
#define rall(v)(v).rbegin(),(v).rend()
#define F first
#define S second
#define pb push_back
#define pu push
#define COUT(x) cout<<(x)<<endl
#define PQ priority_queue<ll>
#define PQR priority_queue<ll,vector<ll>,greater<ll>>
#define YES(n) cout << ((n) ? "YES" : "NO"  ) << endl
#define Yes(n) cout << ((n) ? "Yes" : "No"  ) << endl
#define mp make_pair
#define maxs(x,y) (x = max(x,y))
#define mins(x,y) (x = min(x,y))
#define sz(x) (int)(x).size()
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const ll MOD = 1000000007LL;
const ll INF = 1LL << 60;
using vll = vector<ll>;
using vb = vector<bool>;
using vvb = vector<vb>;
using vvll = vector<vll>;
using vstr = vector<string>;
using pll = pair<ll, ll>;
using vc = vector<char>;
using vvc = vector<vc>;
ll dx[4]={0,1,0,-1};
ll dy[4]={1,0,-1,0};
int main(){
  string s;
  cin>>s;
  string h="";
  vll xx(0);
  ll cu=0;
  rep(i,sz(s)){
    if(s[i]=='x'){
      continue;
    }
    h+=s[i];
  }
  s.pb('&');
  rep(i,sz(s)){
      if(s[i]=='x') {
        cu++;
      }
   else{
     xx.pb(cu);
     cu=0;
   }
  }
  s-='&';
  if(sz(h)%2==1){
    ll k=sz(h)/2;
    for(int i=1;i<=k;i++){
      if(h[k-i]!=h[k+i]){
        COUT(-1);
        return 0;
      }
    }
    ll ans=0;
    ll t=sz(xx)/2-1;
    ll tt=t+1;
    while(t>=0){
      ans+=max(xx[t],xx[tt]);
      t--;
      tt++;
    }
    COUT(ans);
  }
  else{
    ll k=sz(h)/2-1;
    ll kk=k+1;
    while(k>=0){
      if(h[k]!=h[kk]){
        COUT(-1);
        return 0;
      }
      kk++;
      k--; 
    }
    ll ans=0;
    ll t=sz(xx)/2;
    for(int i=1;i<=t;i++){
      ans+=max(xx[t-i],xx[t+i]);
    }
    COUT(ans);
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:64:4: error: no match for 'operator-=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'char')
   64 |   s-='&';
      |   ~^~~~~
Language: C++

#include <bits/stdc++.h>
#define fi first
#define se second
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define rrep(i,n) for(int i = 1; i <= (n); ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define rng(a) a.begin(),a.end()
#define rrng(a) a.rbegin(),a.rend()
#define maxs(x,y) (x = max(x,y))
#define mins(x,y) (x = min(x,y))
#define limit(x,l,r) max(l,min(x,r))
#define lims(x,l,r) (x = max(l,min(x,r)))
#define isin(x,l,r) ((l) <= (x) && (x) < (r))
#define pb push_back
#define eb emplace_back
#define sz(x) (int)(x).size()
#define pcnt __builtin_popcountll
#define uni(x) x.erase(unique(rng(x)),x.end())
#define show(x) cout<<#x<<" = "<<x<<endl;
#define PQ(T) priority_queue<T,v(T),greater<T> >
#define bn(x) ((1<<x)-1)
#define dup(x,y) (((x)+(y)-1)/(y))
#define newline puts("")
#define v(T) vector<T>
#define vv(T) v(v(T))
using namespace std;
typedef long long int ll;
typedef unsigned uint;
typedef unsigned long long ull;
typedef pair<int,int> P;
typedef tuple<int,int,int> T;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vl;
typedef vector<P> vp;
typedef vector<T> vt;

int main() {
	string S,T;
	cin >> S;
	vector<int>kug(1, 0);
	for (int i = 0; i < S.size(); ++i) {
		if (S[i] != 'x') {
			T.push_back(S[i]);
			kug.push_back(0);
		}
		else {
			kug.back()++;
		}
	}
	for (int i = 0; i < T.size(); ++i) {
		if (T[i] != T[T.size() - 1 - i]) {
			cout << "-1\n";
			return 0;
		}
	}
	int ans = 0;
	for (int i = 0; i < kug.size(); ++i) {
		ans += abs(kug[i] - kug[kug.size() - 1 - i]);
		
	}
	cout << ans / 2 << endl;
	return 0;
}
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <cstring>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <list>
#include <algorithm>
#include <functional>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
#include <unordered_set>
#include <unordered_map>
#include <array>
#include <cassert>
#include <bitset>
using namespace std;
using LL = long long;

int main() {
	string S,T;
	cin >> S;
	vector<int>kug(1, 0);
	for (int i = 0; i < S.size(); ++i) {
		if (S[i] != 'x') {
			T.push_back(S[i]);
			kug.push_back(0);
		}
		else {
			kug.back()++;
		}
	}
	for (int i = 0; i < T.size(); ++i) {
		if (T[i] != T[T.size() - 1 - i]) {
			cout << "-1\n";
			return 0;
		}
	}
	int ans = 0;
	for (int i = 0; i < kug.size(); ++i) {
		ans += abs(kug[i] - kug[kug.size() - 1 - i]);
		
	}
	cout << ans / 2 << endl;
	return 0;
}

Compiler output:
a.cc:94:5: error: redefinition of 'int main()'
   94 | int main() {
      |     ^~~~
a.cc:39:5: note: 'int main()' previously defined here
   39 | int main() {
      |     ^~~~
Language: C++

#include <iostream>
using namespace std;
int main(){
  string s;cin>>s;
  int mn = 0;
  int mx = s.size()-1;
  int ans = 0;
  while(mn < mx){
    if(s[mn] == s[mx]){
      mn++;mx--;
    }else if(s[mn] == 'x'){
      mn++;
      ans++;
    }else if(s[mx] == 'x'){
      mx--;
      ans++;
    }else{
      cout << -1 << endl;
      return 0;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:2: error: expected '}' at end of input
   22 | }
      |  ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

s = input()
ns = s.replace("x","")
l = len(ns)

if ns[:l//2] == ns[(l+1)//2:]:
    ans = 0
    left = 0
    right = len(s) - 1
    while left <= right:
        if s[left] != s[right]:
            if s[left] == "x":
                right += 1
            else:
                left -= 1
            ans += 1
        left += 1
        right -= 1
else:
    ans = -1

print(ans)




Compiler output:
a.cc:1:1: error: 's' does not name a type
    1 | s = input()
      | ^
Language: C

#include <bits/stdc++.h>
#define rep(i,n) for(int64_t i=0;i < (int64_t)(n);i++)
using namespace std;

//////全探索したいときに開けよ////////
/*
vector<vector<int>> fspattern;
vector<int> fspattern_draft;
int fspcnt = 0;

void setfspattern_core(int floor,int number,int degree){
  if(floor==degree){
    fspattern.at(fspcnt) = fspattern_draft;
    fspcnt++;
  }else{
    rep(i,number){
      fspattern_draft.at(floor) = i;
      setfspattern_core(floor+1,number,degree);
    }
  }
}

void setfspattern(int number,int degree){
  int64_t array_num = 1;
  rep(i,degree){
    array_num *= number;
  }
  fspattern = vector<vector<int>>(array_num,vector<int>(degree));
  fspattern_draft = vector<int>(degree);
  setfspattern_core(0,number,degree);
}
*/

//////nCrのmodを求めたいときに開けよ/////////
//int64_t univMod = 1000000007;
//int64_t factnum = 100000
//vector<int64_t> modfact(factnum);
//vector<int64_t> modinvfact(factnum);

/*void setmodfact(){
  for(int i=0;i<factnum;i++){
    if(i == 0){
      modfact.at(i) = 1;
    }else{
      modfact.at(i) = (modfact.at(i-1)*i)%univMod;
    }
  }
}

int64_t calcmodpower(int64_t a,int64_t n){
  int64_t res = 1;
  while(n != 0){
    if(n & 1){
      res = (res * a) % univMod;
    }
    a = (a*a) % univMod;
    n = n >> 1;
  }
  return res;
}

int64_t calcinverse(int64_t n){
	return calcmodpower(n,univMod-2);
}

void setmodinvfact(){
  for(int i=0;i<factnum;i++){
    if(i==0){
      modinvfact.at(i) = 1;
    }else{
      modinvfact.at(i) = calcmodpower(modfact.at(i),univMod-2);
    }
  }
}*/


/*
int64_t calcGCD(int64_t a,int64_t b){
	int64_t p = a;
	int64_t q = b;
	int64_t c = a%b;
	while(c != 0){
		p = q;
		q = c;
		c = p%q;
	}
	return q;
}
*/

int main(){
  string s;
  cin >> s;
  string wx;
  rep(i,s.size()){
    if(s.at(i) != 'x'){
      wx.push_back(s.at(i));
    }
  }
  //cout << wx;
  string wxr = wx;
  reverse(wx.begin(),wx.end());
  int result = 0;
  if(wxr != wx){
    cout << -1 << endl;
  }else{
    int l = 0;
    int r = s.size()-1;
    while(l != r){
      if(s.at(l) == s.at(r)){
        l++;
        r--;
      }else{
        if(s.at(l) == 'x'){
          l++;
          result++;
        }
        if(s.at(r) == 'x'){
          r--;
          result++;
        }
      }
    }
    cout << result << endl;
  }
}
        
        

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

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

typedef long long  ll;

ll MOD = 1000000007;
ll INF = 100000000000000;
double PI = 3.1415926535;

template<typename T>
void remove(std::vector<T>& vector, unsigned int index)
{
    vector.erase(vector.begin() + index);
}

using Graph = vector<vector<pair<ll,ll>>>;


int main(){
  string S;cin >> S;
  int N = S.size();
  string T = "";
  vector<int> P(1,0);
  for(int i = 0;i < N;i++){
    if(S[i] != 'x'){
      T.push_back(S[i]);
      P.push_back(i);
    }
  }
  P.push_back(N);
  int m = T.size();
  //cout << m << endl;
  for(int i = 1;i <= m/2;i++){
    if(m % 2 == 0){
      if(T[m/2-i] != T[m/2+i-1]){
      cout << -1 << endl;
      return 0;
    }else{
      if(T[m/2-i] != T[m/2+i]){
        cout << -1 << endl;
        return 0;
      }
    }
  }
  /*for(int i = 0;i <= m;i++){
    cout << P[i] << ' ';
  }
  cout << endl;*/
  int ans = 0;
  //if(m % 2 == 1){
    int a = 1;
    //cout << m << endl;
    int lbase,rbase;
    if(m % 2 == 0){
      lbase = P[m/2+1]+1;rbase = P[m/2+2]+1;
    }else{
      a++;
      lbase = P[m/2+1]+1;rbase = P[m/2+1]+1;
    }
    bool lfrag = 0,rfrag = 0;
    int l = 0,r = 0;
    S = 'a' + S + 'a';
    //cout << S << endl;
    for(int i = 1;i <= m/2+a;i++){
      int l = 0,r = 0;
      int j = 0;
      //cout << lbase << ' ' << rbase << ' ' << l << ' ' << r << ' ' << ">>";
      while(rbase <= N){
        rbase++;
        if(S[rbase+j] != 'x'){
          break;
        }
        r++;
        
      }
      j = 0;
      while(lbase >= 0){
        lbase--;
        if(S[lbase-j] != 'x'){
          break;
        }
        l++;
        
      }
      //cout << lbase << ' ' << rbase << ' ' << l << ' ' << r <<  endl;
      ans += abs(r-l);
    }
  //}
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:90:2: error: expected '}' at end of input
   90 | }
      |  ^
a.cc:19:11: note: to match this '{'
   19 | int main(){
      |           ^