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

#include <stdio.h>
int main(){
   int x, y, z;
   scanf("%d %d %d",&x, &y, &z) ;
   if(z%2==0||z%x==0||z%y==0){ printf("Yes\n) ;}
    else{
    printf("No\n");
   }
   return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:39: warning: missing terminating " character
    5 |    if(z%2==0||z%x==0||z%y==0){ printf("Yes\n) ;}
      |                                       ^
main.c:5:39: error: missing terminating " character
    5 |    if(z%2==0||z%x==0||z%y==0){ printf("Yes\n) ;}
      |                                       ^~~~~~~~~~
main.c:6:5: error: expected expression before 'else'
    6 |     else{
      |     ^~~~
main.c:9:13: error: expected ';' before '}' token
    9 |    return 0;
      |             ^
      |             ;
   10 | }
      | ~            
main.c:10:1: error: expected declaration or statement at end of input
   10 | }
      | ^
Language: C++

#include<iostream>
#include<cstdio>
#include<algorithm>
using namespace std;
int n,m,s;
int main(){
	scanf("%d %d %d",&n,&m,&s);
	//n+m-1==s||2*n+2*m-2-4==s||(s%4==0&&n>=s/4*2&&m>=s/4*2)||(m>1&&!(s%(m-1))&&!(s/(m-1)%2))||(n>1&&!(s%(n-1))&&!(s/(n-1)%2))?printf("Yes\n"):printf("No");
	n&1?printf("Yes\n");
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:28: error: expected ':' before ';' token
    9 |         n&1?printf("Yes\n");
      |                            ^
      |                            :
a.cc:9:28: error: expected primary-expression before ';' token
Language: C++

#include<bits/stdc++.h>
using namespace std;
int n,m,k;
bool dfs(int c,int co){
  for(int i=0;i<=n;i++){
    if(c==k)return 1;
    c-=co;
    c+=m-co;
  }
  return 0;
}
int main(){
 
  cin >> n >> m >> k;
  int c=0;
  int co=0;
  for(int i=0;i<=m;i++){
    if(dfs(c,co)){
      cout << "Yes" << endl;
      return 0;
    }
    c+=n;
    co++
  }
  /*  swap(n,m);
  c=0;
  co=0;
    for(int i=0;i<m;i++){
    c+=n;
    co++;
    if(dfs(c,co)){
      cout << "Yes" << endl;
      return 0;
    }
    }*/
    cout << "No" << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:9: error: expected ';' before '}' token
   23 |     co++
      |         ^
      |         ;
   24 |   }
      |   ~
Language: Java

import java.io.*;
import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int N = scanner.nextInt();
        int M = scanner.nextInt();
        int K = scanner.nextInt();
        
        System.out.println(check(N, M, K) ? "Yes" : "No");
        
        return;
    }
    
    private static boolean check(int N, int  M, int  K) {
        for (int col = 0; col < M; col++) 
        for (int row = 0; row < N; row++) {
            int sum = (long)col * N + M * row - 2 * (long)col * row;
            if (sum == K) return true;
        }
        return false;
    }
    
}

Compiler output:
Main.java:18: error: incompatible types: possible lossy conversion from long to int
            int sum = (long)col * N + M * row - 2 * (long)col * row;
                                              ^
1 error
Language: C++

#include<iostream>
#include<cstdio>
#include<algorithm>
using namespace std;
int n,m,s;
int main(){
	scanf("%d %d %d",&n,&m,&s);
	n+m-1==s||2*n+2*m-2-4==s||(s%4==0&&n>=s/4*2&&m>=s/4*2)||(m>1&&!(s%(m-1))&&!(s/(m-1)%2))||(n>1&&!(s%(n-1))&&!(s/(n-1)%2))||did(s)||(n*m>1000)?printf("Yes\n"):printf("No");
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:131: error: 'did' was not declared in this scope; did you mean 'div'?
    8 |         n+m-1==s||2*n+2*m-2-4==s||(s%4==0&&n>=s/4*2&&m>=s/4*2)||(m>1&&!(s%(m-1))&&!(s/(m-1)%2))||(n>1&&!(s%(n-1))&&!(s/(n-1)%2))||did(s)||(n*m>1000)?printf("Yes\n"):printf("No");
      |                                                                                                                                   ^~~
      |                                                                                                                                   div
Language: C++

#include<iostream>
using namespace std;
int main()
{
int m,n,k;
if((m+N-1)%2==1)
cout<<"Yes";
else if(k%2==1)
cout<<"No";
else
cout<<"Yes";
return 0:
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:7: error: 'N' was not declared in this scope
    6 | if((m+N-1)%2==1)
      |       ^
a.cc:12:9: error: expected ';' before ':' token
   12 | return 0:
      |         ^
      |         ;
a.cc:12:9: error: expected primary-expression before ':' token
Language: C++

#include <iostream>
using namespace std;

int main(){
	int N, M, K;
	cin >> N >> M >> K;
	bool ok = "No";
	if(K % N == 0 || K % M == 0){
		ok = "Yes";
	}else{
		for(int i = 0; i < N - 1; i++){
			for(int j = 0; j < M - 1; j++){
				if(K == M + (j + 1) * (N - 2) + (i + 1) * (M - 2)){
					ok = "Yes";
					break;
				}
			}
			if(ok == "Yes"){
				break;
			}
		}
	}
	cout << ok << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:31: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   18 |                         if(ok == "Yes"){
      |                            ~~~^~~~~~~~
Language: C++

#include <algorithm>

using namespace std;

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

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

	for (i = 0; i <= n; i++) {
		for (j = 0; j <= m; j++) {
			if (i * (n - j) + (m - i) * j == k) {
				c = 1;
			}
		}
	}

	if (c == 1) {
		printf("Yes\n");
	}
	else {
		printf("No\n");
	}

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: 'scanf' was not declared in this scope
    9 |         scanf("%d %d %d", &n, &m, &k);
      |         ^~~~~
a.cc:20:17: error: 'printf' was not declared in this scope
   20 |                 printf("Yes\n");
      |                 ^~~~~~
a.cc:2:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
    1 | #include <algorithm>
  +++ |+#include <cstdio>
    2 | 
a.cc:23:17: error: 'printf' was not declared in this scope
   23 |                 printf("No\n");
      |                 ^~~~~~
a.cc:23:17: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
Language: C++

#include<bits/stdc++.h>
using namespace std;
int n,m,k;
int main(){
	scanf("%d%d%d",&n,&m,&k);
	if(n==1||m==1) return puts("Yes\n"),0;
	if(!(k%n)||!(k%m)||k==m*n||!k) return puts("Yes\n"),0;
	if(n<m) swap(n,m);
	int l=min((m/2)*n,(n/2)*m),r=max(((m+1)/2)*n,((n+1)/2)*m)
	if(k>=l&&k<=r) return puts("Yes\n"),0;
	return puts("No\n"),0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: expected ',' or ';' before 'if'
   10 |         if(k>=l&&k<=r) return puts("Yes\n"),0;
      |         ^~
Language: C++

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

int N, M, k;
set<int> comb;

int get_split_cnt(int x, int y) {
  return (x+1) * (y+1) + (N-1-x) * (M-1-y)
}

int main() {
  cin >> N >> M >> K;

  int total = N * M;

  if (K % N == 0 || K % M == 0) {
    cout << "Yes" << endl;
    return 0;
  }

  for(int i = 0; i < N/2; i++) {
    for (int j = 0; i < M/2; j++) {
      int num = get_split_cnt(i, j);
      cout << num << endl;
      cout << total - num << endl;
      comb.insert(num);
      comb.insert(total - num);
    }
  }

  if (comb.count(K)) {
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }
}


Compiler output:
a.cc: In function 'int get_split_cnt(int, int)':
a.cc:9:43: error: expected ';' before '}' token
    9 |   return (x+1) * (y+1) + (N-1-x) * (M-1-y)
      |                                           ^
      |                                           ;
   10 | }
      | ~                                          
a.cc: In function 'int main()':
a.cc:13:20: error: 'K' was not declared in this scope
   13 |   cin >> N >> M >> K;
      |                    ^
Language: C++

#include <string>
#include <iostream>
#include <vector>

using namespace std;

vector<vector<int>> calcDivisor(int n) {
    vector<vector<int>> res(2);
    int root = sqrt(n);

    for (int i = 1; i <= root; i++) {
        if (root % i == 0) {
            res[0].push_back(i);
            res[1].push_back(root / i);
        }
    }

    return res;
}

int main() {
    int N, M, K;
    cin >> N >> M >> K;

    vector<vector<int>> res = calcDivisor(K);


    bool existAns = false;
    for (int n = 0; n < res[0].size(); n++) {
        int x = res[0][n];
        int y = res[1][n];

        if (x <= N && y <= M || y <= N && x <= M) {
            existAns = true;
            break;
        }
    }

    if (existAns) { cout << "Yes" << endl; }
    else { cout << "No" << endl; }

    return 0;
}

Compiler output:
a.cc: In function 'std::vector<std::vector<int> > calcDivisor(int)':
a.cc:9:16: error: 'sqrt' was not declared in this scope
    9 |     int root = sqrt(n);
      |                ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{

	scanf("%d%d%d",&n,&m,&k);
	for(register int i=1;i<=n;++i)
		for(register int j=1;j<=m;++j)
			if((n-i)*j+(m-j)*i==k)
			{
				printf("Yes");
				return 0;
			}
	printf("No");
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:25: error: 'n' was not declared in this scope; did you mean 'yn'?
    6 |         scanf("%d%d%d",&n,&m,&k);
      |                         ^
      |                         yn
a.cc:6:28: error: 'm' was not declared in this scope; did you mean 'tm'?
    6 |         scanf("%d%d%d",&n,&m,&k);
      |                            ^
      |                            tm
a.cc:6:31: error: 'k' was not declared in this scope
    6 |         scanf("%d%d%d",&n,&m,&k);
      |                               ^
a.cc:7:26: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    7 |         for(register int i=1;i<=n;++i)
      |                          ^
a.cc:8:34: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    8 |                 for(register int j=1;j<=m;++j)
      |                                  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
	scanf("%d%d%d",&n,&m,&k);
	for(int i=0;i<=n;i++)
		for(int j=0;j<=m;j++)
		if(i*m+j*n-2*i*j==k)
		{
			puts("Yes");
			return 0;
		}
	puts("No");
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:25: error: 'n' was not declared in this scope; did you mean 'yn'?
    5 |         scanf("%d%d%d",&n,&m,&k);
      |                         ^
      |                         yn
a.cc:5:28: error: 'm' was not declared in this scope; did you mean 'tm'?
    5 |         scanf("%d%d%d",&n,&m,&k);
      |                            ^
      |                            tm
a.cc:5:31: error: 'k' was not declared in this scope
    5 |         scanf("%d%d%d",&n,&m,&k);
      |                               ^
Language: C++

#include<iostream>
#include<cstdio>

int N,M,K;

int main()
{
	int i;
	scanf("%d%d%d",&N,&M,&K);
	bool ans=false;
	for(i=1;i<=N;i++)
		for(j=1;j<=M;j++)
			if(i*j+(N-i)*(M-j)==K)
				ans=true;
	if(ans) puts("Yes");
	else puts("No");
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:21: error: 'j' was not declared in this scope
   12 |                 for(j=1;j<=M;j++)
      |                     ^
Language: C++

#include<stdio.h>
#include<algorithm>
#include<string.h>
#include<string>
#include<math.h>
#include<stdlib.h>
#include<time.h>
#include<map>
#include<queue>
#include<set>
#define fo(i,a,b) for(int i=a;i<=b;i++)
#define fd(i,a,b) for(int i=a;i>=b;i--)
using namespace std;
int n,m,k,i,j,s;
int main(){
	scanf("%d%d%d",&n,&m,&k);
	fo(i,1,n)
		fo(j,1,m){
			s=i*m+j*n-i*j;
			if (s==k){
				printf("Yes\n");
				return ;
			}
		}
	printf("No\n");
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:33: error: return-statement with no value, in function returning 'int' [-fpermissive]
   22 |                                 return ;
      |                                 ^~~~~~
Language: C++

#include<iostream>
using namespace std;

int main(){
  int n,m,k,ans;
  cin >> n >> m >>k;
  for(int i=0;i<=m;i++){
    for(int j=0;j<=n;j++){
      if( (n*i+(m-a)*j) ==k ){
        cout << "Yes" <<endl;
        return 0;
      }
    }
  }
  cout << "No" <<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:19: error: 'a' was not declared in this scope
    9 |       if( (n*i+(m-a)*j) ==k ){
      |                   ^
Language: C++

#include "bits/stdc++.h"
#include <sys/timeb.h>
#include <fstream>

using namespace std;

#define repl(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define rep(i,n) repl(i,0,n)
#define replrev(i,a,b) for(int i=(int)(b)-1;i>=(int)(a);i--)
#define reprev(i,n) replrev(i,0,n)
#define repi(itr,ds) for(auto itr=ds.begin();itr!=ds.end();itr++)
#define all(a) a.begin(),a.end()
#define mp make_pair
#define mt make_tuple
#define INF 2000000000
#define INFL 1000000000000000000LL
#define EPS (1e-10)
#define MOD 1000000007
#define PI 3.1415926536
#define RMAX 4294967295

typedef long long ll;
typedef pair<double, double> P;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<bool> vb;
typedef vector<char> vc;
typedef vector<string> vs;
typedef vector<double> vd;
typedef vector<P> vP;
typedef vector<vector<int> > vvi;
typedef vector<vector<bool> > vvb;
typedef vector<vector<ll> > vvll;
typedef vector<vector<char> > vvc;
typedef vector<vector<string> > vvs;
typedef vector<vector<double> > vvd;
typedef vector<vector<P> > vvP;
typedef priority_queue<int, vector<int>, greater<int> > pqli;
typedef priority_queue<ll, vector<ll>, greater<ll> > pqlll;
typedef priority_queue<P, vector<P>, greater<P> > pqlP;
typedef pair<int, pair<int, int> > Edge;
typedef vector<Edge> vE;
typedef priority_queue<Edge, vector<Edge>, greater<Edge> > pqlE;

string debug_show(P a) {
	return "(" + to_string(a.first) + "," + to_string(a.second) + ")";
}



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

	int N, M, K;
	cin >> N >> M >> K;
	K = N*M - K;
	rep(i, N) {
		rep(j, M) {
			if (M*a + N*b - 2 * a*b == K) {
				cout << "Yes" << endl;
				return 0;
			}
		}
	}
	cout << "No" << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:60:31: error: 'a' was not declared in this scope
   60 |                         if (M*a + N*b - 2 * a*b == K) {
      |                               ^
a.cc:60:37: error: 'b' was not declared in this scope
   60 |                         if (M*a + N*b - 2 * a*b == K) {
      |                                     ^
Language: C++

#include <iostream>
#include <fstream>
#include <cstdio>
#include <cmath>
#include <vector>
#include <cstring>
#include <string>
#include <set>
#include <map>
#include <stack>
#include <queue>
#include <deque>
#include <algorithm>
using namespace std;

#define REP(i,n) for(int i=0; i<n; ++i)
#define FOR(i,a,b) for(int i=a; i<=b; ++i)
#define FORR(i,a,b) for (int i=a; i>=b; --i)
#define ALL(c) (c).begin(), (c).end()

typedef long long ll;
typedef vector<int> VI;
typedef vector<ll> VL;
typedef vector<VI> VVI;
typedef vector<VL> VVL;
typedef pair<int,int> P;
typedef pair<ll,ll> PL;

int main() {
	int n, m, k;
	cin >> n >> m >> k;

	REP(i,n+1) RPE(j,m+1){
		int p = i * (m - j) + (n - i) * j;
		if (p == k){
			cout << "Yes" << endl;
			return 0;
		}
	}

	cout << "No" << endl;



    return 0;
}





Compiler output:
a.cc: In function 'int main()':
a.cc:33:24: error: 'j' was not declared in this scope
   33 |         REP(i,n+1) RPE(j,m+1){
      |                        ^
a.cc:33:20: error: 'RPE' was not declared in this scope; did you mean 'REP'?
   33 |         REP(i,n+1) RPE(j,m+1){
      |                    ^~~
      |                    REP
Language: C++

#include<bits/stdc++.h>
using namespace std;
using lli = long long;
#define rep(i,n) for(int i=0;i<n;i++)
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

bool solve(lli h, lli w, vector<lli> cnt) {
    lli r1 = (h%2)*(w%2);
    lli r2 = (h%2)*(w/2)+(w%2)*(h/2);
    assert  ((h * w - 2 * r2 - r1) % 4 == 0);
    lli r4 = (h*w-2*r2-r1) / 4;
    rep(i, 26){
        if(cnt[i] < 4) continue;
        while(r4 > 0 && cnt[i] >= 4) cnt[i]-=4, r4--;
    }
    if(r4a > 0) return false;
    for (int c = 0; r2--; ) {
        while (c < 26 && cnt[c] < 2) c++;
        if (c == 26) return false;
        cnt[c] -= 2;
    }
    return true;
}

int main() {
    lli h, w;
    cin >> h >> w;
    vector<lli> cnt(26);
    rep(i, h) rep(j, w){
        char c;
        cin >> c;
        cnt[c - 'a']++;
    }
    // solve
    bool result = solve(h, w, cnt);
    // output
    printf("%s\n", result ? "Yes" : "No");
    return 0;
}


Compiler output:
a.cc: In function 'bool solve(lli, lli, std::vector<long long int>)':
a.cc:17:8: error: 'r4a' was not declared in this scope; did you mean 'r4'?
   17 |     if(r4a > 0) return false;
      |        ^~~
      |        r4
Language: C++

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

int main(){
  int h, w;
  cin >> h >> w;
  vector<string> mat(h);
  rep(i, h) cin >> mat[i];
  vector<int> vec(26, 0);
  int four=0, two=0, one=0;
  for(int i=0; i<100; i++){
    if(min(h, w) >= 2){
      four++;
      if(w%2==1) two++;
      four += (w-2)/2;
      if(h%2==1) two++;
      four += (h-2)/2;
      w -= 2;
      h -= 2;
    }else{
      if(h!=1 && w!=1){
        if(h==1){
          if(w%2==1) one++;
          two += w/2;
        }else{
          if(h%2==1) one++;
          two += h/2;
        }
        h=0; w=0;
      }else{
        one++;
        h=0; w=0;
      }
    }
  }
  for(int i=0; i<h; i++){
    for(int j=0; j<w; j++){
      vec[mat[i][j]-'a']++;
    }
  }
  for(int i=0; i<four; i++){
    for(int j=0; j<26; j++){
      if(vec[j] >= 4) vec[j] -= 4;
      else{
        cout << "No" << endl;
        return 0;
      }
    }
  }
  for(int i=0; i<two; i++){
    for(int j=0; j<26; j++){
      if(vec[j] >= 2) vec[j] -= 2;
      else{
        cout << "No" << endl;
        return 0;
      }
    }
  }
  for(int i=0; i<one; i++){
    for(int j=0; j<26; j++){
      if(vec[j] >= 1) vec[j] -= 1;
      else{
        cout << "No" << endl;
        return 0;
      }
    }
  }
  cout << "Yes" << endl;
  return 0;
}
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: 'i' was not declared in this scope
    9 |   rep(i, h) cin >> mat[i];
      |       ^
a.cc:9:3: error: 'rep' was not declared in this scope
    9 |   rep(i, h) cin >> mat[i];
      |   ^~~
Language: C++

3 4
aabb
aabb
aacc

Yes

==
2 2
aa
bb

No

==

5 1
t
w
e
e
t

Yes
==

2 5
abxba
abyba

No
==
1 1
z

Yes

Compiler output:
a.cc:1:1: error: expected unqualified-id before numeric constant
    1 | 3 4
      | ^
Language: C++

#include <bits/stdc++.h>
#define rep(i, n, m) for (int i = (int)(n); i < (int)(m); i++)
#define repr(i, n, m) for (int i = (int)(n) - 1; i >= (int)(m); i--)
using namespace std;
using ll = int64_t;
const int MOD = 1000000007; // 10^9+7
// https://atcoder.jp/contests/code-festival-2017-quala/tasks/code_festival_2017_quala_c

int main() {
    int h, w; cin >> h >> w;
    map<char, int> cnt;
    rep(i, 0, h * w) {
        char c; cin >> c;
        cnt[c] += 1;
    }

    if (h % 2 == 0 && w % 2 == 0) {
        for (auto& i : cnt){
            if (i.seocnd % 4 != 0) {
                cout << "No" << endl;
                return 0;
            }
        }
        cout << "Yes" << endl;
    } else if (h % 2 == 1 && w % 2 == 1) {
        int need4 = (h - 1) * (w - 1);
        int need2 = h + w - 2;
        int need1 = 1;

        int num4 = 0;
        int num2 = 0;
        int num1 = 0;

        for (auto& i : cnt){
            int tmp = i.second;
            if (tmp % 2 == 1) {
                if (num1 < need1) {
                    tmp--;
                    num1++;
                } else {
                    cout << "No" << endl;
                    return 0;
                }
            }

            num4 += tmp - tmp % 4;
            num2 += tmp % 4;
        }

        if (num4 > need4) {
            num2 = need4 - num4;
        }

        if (num4 == need4 && num2 == need2 && num1 == need1) cout << "Yes" << endl;
        else cout << "No" << endl;
    } else {
        if (h % 2 == 0) swap(h, w); // hを奇数、wを偶数にする
        int need4 = (h - 1) * w;
        int need2 = w;

        int num4 = 0;
        int num2 = 0;
        for (auto& i : cnt){
            if (i.second % 2 == 1) {
                cout << "No" << endl;
                return 0;
            }

            num4 += i.second - i.second % 4;
            num2 += i.second % 4;
        }
        if (num4 > need4) {
            num2 = need4 - num4;
        }

        if (num4 == need4 && num2 == need2) cout << "Yes" << endl;
        else cout << "No" << endl;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:19: error: 'struct std::pair<const char, int>' has no member named 'seocnd'; did you mean 'second'?
   19 |             if (i.seocnd % 4 != 0) {
      |                   ^~~~~~
      |                   second
Language: C++

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;
const int INF = 1e9;

int main() {
  ll h, w, ans = 0;
  cin >> h >> w;
  string s[h];
  rep(i, h) cin >> s[i];
  unordered_map<ll, char> mp;
  rep(i, h) rep(j, w) mp[s[i][j]]++;
  ll four = 0, two = 0, odd = 0;
  for (auto m : mp) {
    if (m.second % 4 == 0) {
      ll mm = m;
      while (mm > 1) four++, mm /= 4;
    } else if (m.second % 2 == 0)
      two++;
    else
      odd++;
  }

  if (h == 1 && w == 1) {
    cout << "Yes" << endl;
  } else if (h == 1 || w == 1) {
    ll mx = max(h, w);
    if (mx / 2 == four * 2 + two)
      cout << "Yes" << endl;
    else
      cout << "No" << endl;
  } else if (h % 2 == 1 && w % 2 == 1) {
    if (odd % 2 == 1)
      cout << "Yes" << endl;
    else
      cout << "No" << endl;
  } else if (h == 2 || w == 2) {
    if (odd)
      cout << "No" << endl;
    else
      cout << "Yes" << endl;
  } else {
    if (four && odd % 2 == 0)
      cout << "Yes" << endl;
    else
      cout << "No" << endl;
  }

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:15: error: cannot convert 'std::pair<const long long int, char>' to 'll' {aka 'long long int'} in initialization
   18 |       ll mm = m;
      |               ^
      |               |
      |               std::pair<const long long int, char>
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
const ll MOD=1000000007;
const double PI=3.14159265358979;
const ll INF= pow(10,18);
typedef pair<ll,ll> P;
typedef vector<ll> vl;
typedef vector<vl> vvl;
#define FOR(i,a,b) for(ll i=a;i<b;i++)
#define rep(i,n) FOR(i,0,n)
string abc="abcdefghijklmnopqrstuvwxyz";
string ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";

int main() {
  ll h,w;
  cin >> h >> w;
  vector<char> a(h*w);
  vl cnt(26,0);
  rep(i,h*w){
    cin >> a[i];
    rep(j,26){
      if(abc[j]==a[i]){
        cnt[j]++;
      }
    }
  }
  bool A=true;
  if(h%2==0&&w%2==0){
    rep(i,26){
      if(cnt[i]%4!=0){
        A=false;
      }
    }
  }
  ll k,x=0,y=0;
  else if(h*w%2==0){
    if(h%2==0){
      k=h/2;
    }
    else{
      k=w/2;
    }
    rep(i,26){
      if(cnt[i]%2!=0){
        A=false;
      }
      else if(cnt[i]%4==2){
        x++;
      }
      if(x>k){
        A=false;
      }
    }
  }
  else{
    rep(i,26){
      if(cnt[i]%2==1){
        y++;
        if(cnt[i]%4==3){
          x++;
        }
      }
      if(cnt[i]%4==2){
        x++;
      }
    }
    if(y!=1){
      A=false;
    }
    else if(x>(h/2)+(w/2)){
      A=false;
    }
  }
  if(A){
    cout << "Yes" << endl;
  }
  else{
    cout << "No" << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:37:3: error: 'else' without a previous 'if'
   37 |   else if(h*w%2==0){
      |   ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define lvector vector<ll>
#define lque queue<ll>
#define lpque priority_queue<ll>
#define dlpque priority_queue<ll,lvector,greater<ll>>
#define P pair<ll,ll> 
#define ALL(a) (a).begin(),(a).end()
#define rep(i,n) for(ll (i)=0; (i)<(n); ++(i))
#define print(a) cout << (a) << endl

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  ll h,w;cin>>h>>w;
  lvector alph(26,0);
  string s;
  rep(i,h) {
    cin>>s;
    rep(j,w) alph[s[j]-'a']++;
  }
  ll g1=(h%2)*(w%2),g2=(h%2)*(w/2)+(w%2)*(h/2),g4=(h/2)*(w/2);
  rep(i,26) if(g1>0&&alph[i]%2==1) {alph[i]-=1;g1--;}
  rep(i,26) if(g2>0&&alph[i]%4==2) {alph[i]-=2;g2--;}
  g4+=g2/2;
  rep(i,26) if(g4>0&&alph[i]>0&&alph[i]%4==0) {g4-=alph[i]/4;sum+=alph[i];alph[i]=0;} 
  puts((accumulate(ALL(alph),0)==0)?"Yes":"No");
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:62: error: 'sum' was not declared in this scope
   27 |   rep(i,26) if(g4>0&&alph[i]>0&&alph[i]%4==0) {g4-=alph[i]/4;sum+=alph[i];alph[i]=0;}
      |                                                              ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define lvector vector<ll>
#define lque queue<ll>
#define lpque priority_queue<ll>
#define dlpque priority_queue<ll,lvector,greater<ll>>
#define P pair<ll,ll> 
#define ALL(a) (a).begin(),(a).end()
#define rep(i,n) for(ll (i)=0; (i)<(n); ++(i))
#define print(a) cout << (a) << endl

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  ll h,w;cin>>h>>w;
  string s;
  map<char,ll> mp;
  rep(i,h) {
    cin>>s;
    rep(j,w) mp[s[j]]++;
  }
  if(h==1||w==1) {
    ll one_mod2=0;
    for(auto p:mp) {
      ll num=p.second;
      if(num%2==1) one_mod2++;
    }
    print((one_mod2<2)?"Yes":"No");
  }
  else {
    ll one_mod2=0,two_mod4=0;
    bool isok=true;
    for(auto p:mp) {
      ll num=p.second;
      if(num%2!=0) one_mod2++;
      if(num%4==2) two_mod4++;
    }
    if(one_mod2>1) isok=false;
    else if(one_mod2==1) {
      if((h*w)%2!=1) isok=false;
      else {
        if(2*two_mod4>(h+w-1)) isok=false;
        else {
          if(h+w-1-2*two_mod4)%4!=0) isok=false;
        }
      }
    }
    else {
      if(two_mod4>1) {
        if(!(h%2==1||w%2==1)||(h*w)%2==1) isok=false;
      }
    }
    puts(isok?"Yes":"No");
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:45:31: error: expected primary-expression before '%' token
   45 |           if(h+w-1-2*two_mod4)%4!=0) isok=false;
      |                               ^
Language: C++

#include <bits/stdc++.h>
#define exrep(i, a, b) for(long long i = a; i <= b; i++)
#define rep(i,n)for(long long i=0;i<(long long)(n);i++)
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
using namespace std;
typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
typedef vector<ll> vl;
typedef vector<vector<ll>> vvl;
typedef pair<ll, ll> P;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
 
const ll MOD=1e9+7;
const ll INF=1e18;
const int MAX=510000;
const double pi=acos(-1);
int dx[4]={1,0,-1,0};
int dy[4]={0,1,0,-1};



int main(){
  cin.tie(0);
  ios::sync_with_stdio(false); 
  
  int h,w;
  cin >> h >> w;
  map<char,int>mp;
  rep(i,h){
    rep(j,w){
      char c;
      cin >> c;
      mp[c]++;
    }
  }
  bool ok=true;
  if(h%2==0 && w%2==0){
    for(auto p:mp){
      if(p.second%4!=0)ok=false;
    }
  }
  else if((h+w)%2==1){
    int cnt1=0,cnt2=0;
    for(auto p:mp){
      if(p.second%2!=0)ok=false;
    }
  }
  else{
    int g1=1,g2=h/2+w/2;g3=(h/2)*(w/2);
    for(auto p:mp){
      if(p.second%4==1 || p.second%4==3)g1--;
      if(p.second%4==2)g2--;
      if(p.second%4==0)g3--;
    }
    if(g1!=0 || g2!=0 || g3!=0)ok=false;
  }
  if(ok)cout<<"Yes"<<endl;
  else cout<<"No"<<endl;
    
        
}


Compiler output:
a.cc: In function 'int main()':
a.cc:52:25: error: 'g3' was not declared in this scope; did you mean 'g2'?
   52 |     int g1=1,g2=h/2+w/2;g3=(h/2)*(w/2);
      |                         ^~
      |                         g2
Language: C++

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

typedef long long ll;
typedef pair<int, int> P;

const ll mod =  1000000007;  //出力は (ans % mod + mod) % mod  (負の剰余を正にする)
const int inf = 1e9;
const long long INF = 1LL << 60;   // INF = 1152921504606846976

int main()
{
    int h,w; cin >> h >> w;
    char a[h][w]; 
    rep(i,h) rep(j,w) cin >> a[i][j];
    int cnt[26];
    rep(i,26) cnt[i] = 0;
    rep(i,h) rep(j,w) cnt[a[i][j]-'a']++;
    int e = 0, o = 0;
    bool ans = true;
    if(h % 2 == 1 && w % 2 == 1){
        int g1 = 1, g2 = h + w - 2, g3 = (h-1) * (w-1);
        rep(i,g1){
            rep(j,26){
                if(cnt[j] % 4 == 1 || cnt[j] % 4 == 3) cnt[j]--;
            }
        }
        rep(i,g2){
            rep(j,26){ 
                if(cnt[j] % 4 == 2) cnt[j] -= 2;
                
            }
        }
        rep(i,g3){
            rep(j,26){
                if(cnt[j] % 4 == 0) cnt[j] -= 4;
            }
        }
    }else if(h % 2 == 1 || w % 2 == 1){
        int g2,g3;
        if(h % 2 == 0) g2 = h/2;
        else g2 = w/2;
        g3 = (h/2) * (w/2);
        rep(i,g2){
            rep(j,26){
                if(cnt[j] % 4 == 2) cnt[j] -= 2;
            }
        }
        rep(i,g3){
            rep(j,26){
                if(cnt[j] % 4 == 0) cnt[j] -= 4;
            }
        }
    }else{
        int g3 = (h/2) * (w/2);
        rep(i,g3){
            rep(j,26){
                if(cnt[j] % 4 == 0) cnt[j] -= 4;
            }
        }
    }
    int ans = true;
    rep(i,26) if(cnt[i] % 4 != 0) ans = false;
    if(ans) cout << "Yes";
    else cout << "No";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:63:9: error: conflicting declaration 'int ans'
   63 |     int ans = true;
      |         ^~~
a.cc:21:10: note: previous declaration as 'bool ans'
   21 |     bool ans = true;
      |          ^~~
Language: C++

#define _USE_MATH_DEFINES
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cctype>
#include <climits>
#include <clocale>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <ctime>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <regex>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

const int MOD = 1000000007; 
const int INF = 1000000000; //1e9
const int NIL = -1;
const long long LINF = 1000000000000000000; // 1e18
const double EPS = 1E-10;

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



int main(){
    int H, W; std::cin >> H >> W;
    std::vector<int> cnt(26, 0);
    {
        std::string a;
        for(int i(0); i < H; ++i){
            std::cin >> a;
            for(int j(0); j < W; ++j){
                ++cnt[a[j]-'a'];
            }
        }
    }
    int cnt1(0), cnt2(0);
    for(int i(0); i < 26; ++i){
        if(cnt[i] % 2){
            ++cnt1; --cnt[i];
        }
        if(!(cnt[i] % 2) && (cnt[i] % 4)) ++cnt2;
    }
    bool okay(true9+
    int lim1((H % 2) & (W % 2)), lim2(0);
    if(H % 2) lim2 += W / 2;
    if(W % 2) lim2 += H / 2;
    if(cnt1 > lim1) okay = false;
    if(cnt2 > lim2) okay = false;
    std::cout << (okay ? "Yes" : "No") << std::endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:76:15: error: 'true9' was not declared in this scope
   76 |     bool okay(true9+
      |               ^~~~~
a.cc:77:5: error: expected primary-expression before 'int'
   77 |     int lim1((H % 2) & (W % 2)), lim2(0);
      |     ^~~
a.cc:77:34: error: 'lim2' was not declared in this scope
   77 |     int lim1((H % 2) & (W % 2)), lim2(0);
      |                                  ^~~~
a.cc:80:15: error: 'lim1' was not declared in this scope
   80 |     if(cnt1 > lim1) okay = false;
      |               ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
 
int main() {
  vector<int> vec(26,0);
  int W,H;
  cin>>W>>H;
  int count1=0;
  int count2=0;
  int count4=0;
  bool end=false;
  if(H*W%2==1){
    count2=(H+W)/2-1;
    count1=1;
    count4=(H*W-1-2*count2)/4;
  }else if(H%2==0&&W%2==0){
    count1=0;
    count2=0;
    count4=H*W/4;
  }else if(H==2&&W%2==0){
    count1=0;
    count2=H*W/2;
    count4=0;
  }
  else if(W==2&&H%2==0){
    count1=0;
    count2=H*W/2;
    count4=0;
  }
  else{
    count1=0;
    count2=(H+W)/2-1;
    count4=(H*W-2*count2)/4;
  }
  rep(I,W*H){
    char X;
    cin>>X;
    if(X=='a') vec.at(0)++;
    if(X=='b') vec.at(1)++;
    if(X=='c') vec.at(2)++;
    if(X=='d') vec.at(3)++;
    if(X=='e') vec.at(4)++;
    if(X=='f') vec.at(5)++;
    if(X=='g') vec.at(6)++;
    if(X=='h') vec.at(7)++;
    if(X=='i') vec.at(8)++;
    if(X=='j') vec.at(9)++;
    if(X=='k') vec.at(10)++;
    if(X=='l') vec.at(11)++;
    if(X=='m') vec.at(12)++;
    if(X=='n') vec.at(13)++;
    if(X=='o') vec.at(14)++;
    if(X=='p') vec.at(15)++;
    if(X=='q') vec.at(16)++;
    if(X=='r') vec.at(17)++;
    if(X=='s') vec.at(18)++;
    if(X=='t') vec.at(19)++;
    if(X=='u') vec.at(20)++;
    if(X=='v') vec.at(21)++;
    if(X=='w') vec.at(22)++;
    if(X=='x') vec.at(23)++;
    if(X=='y') vec.at(24)++;
    if(X=='z') vec.at(25)++;
  }
    rep(j,26){
        if(i==9999){
          cout<<"No"<<endl;
          end=true;
          break;
        }else if(vec.at(j)>=4&&count4>0){
          vec.at(j)-=4;
          count4--;
        }else if(vec.at(j)>=2&&count2>0){
          vec.at(j)-=2;
          count2--;
        }else if(vec.at(j)>=1&&count1>0){
          vec.at(j)-=1;
          count1--;
        }else if(vec.at(j)==0){
          break;
        }
      }
      if(end==true){
        break;
      }
      if(j==25){
        cout<<"Yes"<<endl;
      }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:67:12: error: 'i' was not declared in this scope
   67 |         if(i==9999){
      |            ^
a.cc:85:9: error: break statement not within loop or switch
   85 |         break;
      |         ^~~~~
a.cc:87:10: error: 'j' was not declared in this scope
   87 |       if(j==25){
      |          ^
a.cc: At global scope:
a.cc:91:1: error: expected declaration before '}' token
   91 | }
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define rep(i,j,n) for(int i=(int)(j);i<(int)(n);i++)
#define REP(i,j,n) for(int i=(int)(j);i<=(int)(n);i++)
#define MOD 1000000007
#define int long long
#define ALL(a) (a).begin(),(a).end()
#define vi vector<int>
#define vii vector<vi>
#define pii pair<int,int>
#define priq priority_queue<int>
#define disup(A,key) distance(A.begin(),upper_bound(ALL(A),(int)(key)))
#define dislow(A,key) distance(A.begin(),lower_bound(ALL(A),(int)(key)))
#define tii tuple<int,int,int>
#define Priq priority_queue<int,vi,greater<int>>
#define pb push_back
#define mp make_pair
#define INF (1ll<<60)
signed main(){
  int H,W; cin>>H>>W;
  map<char,char> M;
  rep(i,0,H){
    string S; cin>>S;
    rep(j,0,W) M[S[j]]++;
  }
  int sum1=0,sum2=0;
  for(auto p:M){
    int X=p.second;
    if(X%4==0) continue;
    else if(X%2==0) sum1++;
    else{
      sum2++;
      X--;
      if(X%4==2) sun2++;
    }
  }
  int max1=0,max2=0;
  if(H%2==1) max1+=W/2;
  if(W%2==1) max1+=H/2;
  if(H%2==1&&W%2==1) max2++;
  string ans="No";
  if(max2>=sum2&&max1>=sum1) ans="Yes";
  cout<<ans<<endl;
  }


Compiler output:
a.cc: In function 'int main()':
a.cc:34:18: error: 'sun2' was not declared in this scope; did you mean 'sum2'?
   34 |       if(X%4==2) sun2++;
      |                  ^~~~
      |                  sum2
Language: C

#include <bits/stdc++.h>
#define rep(i,n) for(int64_t i=0;i < (int64_t)(n);i++)
#define invrep(i,n) for(int64_t i=n-1;i >= 0;i--)
#define _GLIBCXX_DEBUG
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){
  fspcnt = 0;
  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 = 200000; //変更すること
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 modpower(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 modinverse(int64_t n){
	return modpower(n,univMod-2);
}

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

int64_t modcomb(int64_t n,int64_t r){
  return (((modfact.at(n)*modinvfact.at(n-r))%univMod)*modinvfact.at(r))%univMod;
}

int64_t modperm(int64_t n,int64_t r){
  return (modfact.at(n)*modinvfact.at(n-r))%univMod;
}

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(){
  int64_t h,w;
  cin >> h >> w;
  vector<int64_t> alph(26);
  rep(i,h){
    rep(j,w){
      char k;
      cin >> k;
      alph[k - 'a']++;
    }
  }
  int64_t cnt2 = 0;
  int64_t odd = 0;
  rep(i,26){
    if(alph[i] % 2 == 1){
      odd++;
      alph[i]--;
    }
    if(alph[i] % 4 != 0){
      cnt2++;
    }
  }
  if(h % 2 == 0 && w % 2 == 0){
    if(odd == 0 && cnt2 == 0){
      cout << "Yes" << endl;
    }else{
      cout << "No" << endl;
    }
  }else if(h % 2 != 0 && w % 2 == 0){
    if(odd == 0 && cnt2 <= w/2){
      cout << "Yes" << endl;
    }else{
      cout << "No" << endl;
    }
  }else if(w % 2 != 0 && h % 2 == 0){
    if(odd == 0 && cnt2 <= h/2){
      cout << "Yes" << endl;
    }else{
      cout << "No" << endl;
    }
  }else{
    if(odd == 1 && cnt2 <= ((w-1)/2)+((h-1)/2)){
      cout << "Yes" << endl;
    }else{
      cout << "No" << 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: Java


    public long nextLong() {
      if (!hasNext()) {
        throw new NoSuchElementException();
      }
      long n = 0;
      boolean minus = false;
      int b = readByte();
      if (b == '-') {
        minus = true;
        b = readByte();
      }
      if (b < '0' || '9' < b) {
        throw new NumberFormatException();
      }
      while (true) {
        if ('0' <= b && b <= '9') {
          n *= 10;
          n += b - '0';
        } else if (b == -1 || !isPrintableChar(b)) {
          return minus ? -n : n;
        } else {
          throw new NumberFormatException();
        }
        b = readByte();
      }
    }

    public int nextInt() {
      long nl = nextLong();
      if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) {
        throw new NumberFormatException();
      }
      return (int) nl;
    }

    public double nextDouble() {
      return Double.parseDouble(next());
    }
  }
}


Compiler output:
Main.java:2: error: unnamed classes are a preview feature and are disabled by default.
    public long nextLong() {
           ^
  (use --enable-preview to enable unnamed classes)
Main.java:40: error: class, interface, enum, or record expected
  }
  ^
2 errors
Language: C++

#include <bits/stdc++.h>

using namespace std;

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

signed main(){

	lli h,w;
	cin>>h>>w;
	char data[26];

	REP(i,0,h)REP(j,0,w){
		char tmp;
		cin>>tmp;
		data[tmp-'a']++;
	}

	bool flag = (i*j)%2;

	REP(i,0,26){
		if(data[i]%2){
			if(flag)flag=false;
			else{
				cout<<"No"<<endl;
				return 0;
			}
		}
	}

	cout<<"Yes"<<endl;


	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:22: error: 'i' was not declared in this scope
   27 |         bool flag = (i*j)%2;
      |                      ^
a.cc:27:24: error: 'j' was not declared in this scope
   27 |         bool flag = (i*j)%2;
      |                        ^
Language: C++

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

bool solve() {
  int H, W; cin >> H >> W;
  int g1 = H & W & 1;
  int g2 = H % 2 * W / 2 + W % 2 * H / 2;
  int g4 = H * W - g1 - g2 * 2;
  vector<int> cnt(26);
  for (int i = 0; i < H*W; i++) {
    char c; cin >> c;
    cnt[c-'a']++;
  }
  int c1 = 0, c2 = 0, c4 = 0;
  for (int i = 0; i < 26; i++) {
    c4 += cnt[i] / 4; cnt[i] %= 4;
    c2 += cnt[i] / 2; cnt[i] %= 2;
    c1 += cnt[i];
  }
  if (c1 > g1 || c2 > g2) return false;
  return true;
  
}

int main() {
  if (solve()) cout << "Yes" << endl;
  else cout << "No" << endl;
}

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

#include<bits/stdc++.h>
using namespace std;
int main(){

 int H,W; cin >> H >> W;
  vector<int> count(26,0);
  for(int i = 0; i < H; i++){
    for(int j = 0; j < W; j++){
      char c; cin >> c; count[c-'a']++;}}
  int cnt1 = 0; int cnt2 = 0; int cnt3 = 0; int cnt0 = 0;
  for(int i = 0; i < 26 ;i++){
    if(count[i]%4 == 0){ cnt0 += count[i];}
    else if(count[i]%4 == 1){ cnt1 += count[i];}
    else if(count[i]%4 == 2){ 
      cnt4 += (count[i]/4)*4; cnt2 += 2;}
    else if(count[i]%4 == 3){ cnt3 += count[i];}
  }
  
  if( H%2 == 0 && W%2 == 0){
    if( cnt1 || cnt2 || cnt3 ){ cout << "No" << endl; return 0;}
    else{ cout << "Yes" << endl; return 0;}
  } //ここはわかる
  
  else if( H%2 == 0 && W%2 == 1){ //Hだけが偶数
    if( cnt1 || cnt3){ cout << "No" << endl; return 0;}
    
    if( cnt2 <= H){ cout << "Yes" << endl; return 0;}
    
    cout << "No" << endl; return 0;}
  
  else if( H%2 == 1 && W%2 == 0){//Wだけ偶数
    if(cnt1 || cnt3){ cout << "No" << endl; return 0;}
    
    if( cnt2 <= W){ cout << "Yes" << endl; return 0;}
    
    cout << "No" << endl; return 0;}
  
  else{ //H,W共に奇数
    if( cnt1 + cnt3 == 0 || cnt1 +cnt3 > 1){ cout << "No" << endl; return 0;}
    
    if(cnt3){ cnt2++;}
    
    if(cnt2 <= (H+W-2)/2){ cout << "Yes" << endl; return 0;}
    
    else{ cout << "No" << endl; return 0;}
  }
  
  return 0;}
    
    
    
    
    
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:15:7: error: 'cnt4' was not declared in this scope; did you mean 'cnt0'?
   15 |       cnt4 += (count[i]/4)*4; cnt2 += 2;}
      |       ^~~~
      |       cnt0
Language: C++

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

int main() {
  int H,W;
  cin >> H >> W;
  int c[26]=0;
  for(int i=0;i<H*W;i++){
    char a;
    cin >> a;
    c[a-'a']+=1;
  }
  int d[26];
  int x=0,y=0;
  for(int i=0;i<26;i++){
    d[i]=c[i]%4;
    if(d[i]==1)x+=1;
    if(d[i]==2)y+=2;
  }
  if((H%2)*(W%2)>=x && (H%2)*(W-(W%2))+(W%2)*(H-(H%2))>=y)cout << "Yes";
  else cout << "No";
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:13: error: array must be initialized with a brace-enclosed initializer
    7 |   int c[26]=0;
      |             ^
Language: C++

#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define fore(i,a) for(auto &i:a)

using namespace std;
int H, W;
string A[101];

string solve() {
    map<char, int> cnt;
    rep(y, 0, H) rep(x, 0, W) cnt[A[y][x]]++;

    if (H % 2 == 0 && W % 2 == 0) {
        fore(p, cnt) if (p.second % 4) return "No";
        return "Yes";
    }

    if (H % 2 && W % 2) {
        map<int, int> c;
        fore(p, cnt) c[p.second % 4]++;
        if (c[3]) return NO;
        if (c[1] != 1) return "No";
        if (c[2] > (H - 1) / 2 + (W - 1) / 2) return "No";
        return "Yes";
    }

    if (W % 2) swap(H, W);

    map<int, int> c;
    fore(p, cnt) c[p.second % 4]++;
    if (c[1] || c[3]) return "No";
    if (c[2] > W / 2) return "No";
    return "Yes";
}

int main() {
    cin >> H >> W;
    rep(y, 0, H) cin >> A[y];
    cout << solve() << endl;
}

Compiler output:
a.cc: In function 'std::string solve()':
a.cc:21:26: error: 'NO' was not declared in this scope
   21 |         if (c[3]) return NO;
      |                          ^~
Language: C++

#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define fore(i,a) for(auto &i:a)

using namespace std;
int H, W;
string A[101];

string solve() {
    map<char, int> cnt;
    rep(y, 0, H) rep(x, 0, W) cnt[A[y][x]]++;

    if (H % 2 == 0 && W % 2 == 0) {
        fore(p, cnt) if (p.second % 4) return NO;
        return YES;
    }

    if (H % 2 && W % 2) {
        map<int, int> c;
        fore(p, cnt) c[p.second % 4]++;
        if (c[3]) return NO;
        if (c[1] != 1) return NO;
        if (c[2] > (H - 1) / 2 + (W - 1) / 2) return NO;
        return YES;
    }

    if (W % 2) swap(H, W);

    map<int, int> c;
    fore(p, cnt) c[p.second % 4]++;
    if (c[1] || c[3]) return NO;
    if (c[2] > W / 2) return NO;
    return YES;
}

int main() {
    cin >> H >> W;
    rep(y, 0, H) cin >> A[y];
    cout << solve() << endl;
}

Compiler output:
a.cc: In function 'std::string solve()':
a.cc:14:47: error: 'NO' was not declared in this scope
   14 |         fore(p, cnt) if (p.second % 4) return NO;
      |                                               ^~
a.cc:15:16: error: 'YES' was not declared in this scope
   15 |         return YES;
      |                ^~~
a.cc:21:26: error: 'NO' was not declared in this scope
   21 |         if (c[3]) return NO;
      |                          ^~
a.cc:22:31: error: 'NO' was not declared in this scope
   22 |         if (c[1] != 1) return NO;
      |                               ^~
a.cc:23:54: error: 'NO' was not declared in this scope
   23 |         if (c[2] > (H - 1) / 2 + (W - 1) / 2) return NO;
      |                                                      ^~
a.cc:24:16: error: 'YES' was not declared in this scope
   24 |         return YES;
      |                ^~~
a.cc:31:30: error: 'NO' was not declared in this scope
   31 |     if (c[1] || c[3]) return NO;
      |                              ^~
a.cc:32:30: error: 'NO' was not declared in this scope
   32 |     if (c[2] > W / 2) return NO;
      |                              ^~
a.cc:33:12: error: 'YES' was not declared in this scope
   33 |     return YES;
      |            ^~~