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

#include <iostream>
#include <vector>

using namespace std;

int main() {
    int n;
    cin >> n;
    
    int k = 2;
    for (int i = 1; i < 500; i++) {
        if (i * (i - 1) / 2 == n) {
            k = i;
            break;
        }
    }
    
    if (k == 2) {
        cout << "No" << endl;
        return 0;
    }
    
    vector<int> s[k];
    int x = 0;
    for (int i = 0; i < k; i++) {
        for (int j = i + 1; j < k; j++) {
            x++;
            s[i].push_back(x);
            s[j].push_back(x);
        }
    }
    
    cout << k << endl;
    for (int i = 0; i < k; i++) {
        cout << s[i].size();
        for (int j : s[i]) {
            cout << " " << j;
        }
        cout << endl;
    }
    
    return 0;
}#include <iostream>


using namespace std;

int main() {
    int n;
    cin >> n;
    
    int k = 2;
    for (int i = 1; i < 500; i++) {
        if (i * (i - 1) / 2 == n) {
            k = i;
            break;
        }
    }
    
    if (k == 2) {
        cout << "No" << endl;
        return 0;
    }
    
    vector<int> s[k];
    int x = 0;
    for (int i = 0; i < k; i++) {
        for (int j = i + 1; j < k; j++) {
            x++;
            s[i].push_back(x);
            s[j].push_back(x);
        }
    }
    
    cout << k << endl;
    for (int i = 0; i < k; i++) {
        cout << s[i].size();
        for (int j : s[i]) {
            cout << " " << j;
        }
        cout << endl;
    }
    
    return 0;
}

Compiler output:
a.cc:43:2: error: stray '#' in program
   43 | }#include <iostream>
      |  ^
a.cc:43:3: error: 'include' does not name a type
   43 | }#include <iostream>
      |   ^~~~~~~
a.cc:48:5: error: redefinition of 'int main()'
   48 | int main() {
      |     ^~~~
a.cc:6:5: note: 'int main()' previously defined here
    6 | int main() {
      |     ^~~~
Language: C++

#include <iostream>
#include <cstdint>
#include <vector>
#include <algorithm>
#include <string>
#include <memory>
#include <sstream>

#include <limits.h>

using namespace std;

void main(int argc, char const *argv[])
{
  // all occurrences of numbers = 2n
  // k * l = 2n
  // n % 2 == 1
  // l = int((n+1)/2)
  int n, k, l;
  cin >> n;

  l = (n + 1) / 2;

  //if (n % 2 == 0 || (2 * n) % l != 0)
  if (n < 3 || n % 2 == 0 || 2 * n != 3 * l)
  {
    cout << "No" << endl;
    return;
  }

  //k = 2 * n / l;
  k = 3;
  cout << "Yes" << endl;
  cout << k << endl;

  int *ar = new int[2 * n];
  int index = 0;
  for (int i = 0; i < n; i++)
  {
    ar[i] = ar[n + i] = i + 1;
  }

  for (int i = 0; i < k; i++)
  {
    cout << l;
    for (int j = 0; j < l; j++)
    {
      cout << " " << ar[index++];
    }
    cout << endl;
  }

  delete[] ar;
  return;
}

Compiler output:
a.cc:13:1: error: '::main' must return 'int'
   13 | void main(int argc, char const *argv[])
      | ^~~~
a.cc: In function 'int main(int, const char**)':
a.cc:28:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
   28 |     return;
      |     ^~~~~~
a.cc:54:3: error: return-statement with no value, in function returning 'int' [-fpermissive]
   54 |   return;
      |   ^~~~~~
Language: C++

#include <iostream>
#include <climits>
#include <cmath>
#include <algorithm>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <string>
#include <deque>
#define INF_INT (INT_MAX / 2)
#define INF_LONG (LONG_MAX / 2)
//#define DEBUG true
#define DEBUG false
using namespace std;

const int MAX = 100001;
const int MOD = 1000000007;

typedef long long ll;
typedef pair< int, int > pii;
typedef pair< ll, ll > pll;
typedef pair< ll, int > pli;
typedef pair< int, ll > pil;

int ceil(int x, int y){
  return (x % y == 0) ? x / y : x / y + 1;
}

int gcd(int x, int y){
  return y ? gcd(y, x % y) : x;
}

int lcm(int x, int y){
  return x / gcd(x, y) * y;
}

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

  int n;
  cin >> n;

  int k = 1;
  while(k * (k - 1) / 2 < n){
    ++k;
  }

  if(k * (k - 1) / 2 != n){
    cout << "No" << endl;
    return 0;
  }

  set< int > g[MAX];
  int count = 1;
  for(int v = 0; v < k; v++){
    for(int w = v + 1; w < k; w++){
      g[v].insert(count);
      g[w].insert(count);
      ++count;
    }
  }

  string buf;
  buf += "Yes" + "\n";
  buf += to_string(k) + "\n";
  for(int i = 0; i < k; i++){
    buf += to_string(g[i].size());
    for(int j: g[i]){
      buf += " " + to_string(j);
    }
    buf += "\n";
  }

  cout << buf;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:66:16: error: invalid operands of types 'const char [4]' and 'const char [2]' to binary 'operator+'
   66 |   buf += "Yes" + "\n";
      |          ~~~~~ ^ ~~~~
      |          |       |
      |          |       const char [2]
      |          const char [4]
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#define rep(i, n) for(int i =0; i < n ;i++)
using namespace std;
int v[100005][100005];
int p[100005];

int main(){
    int N;
    cin >> N;
    int n = 3;
    int t = 3;

    while(n < 100001){
        if(n==N)
        {
            
            cout << "Yes" <<endl;
            cout << n << endl;
            int val=1;
            for(int i =0; i < t ;i++){
                for(int j =i+1; j < t ;j++){
                    v[i][p[i]] = val;
                    p[i]++;
                    v[j][p[j]] = val;
                    p[j]++;
                    val++;
                }
            }
            for(int i =0; i < t ;i++){

                cout << t-1;
                for(int j =0; 0 < v[i][j]  ;j++){
                    cout  << " " << v[i][j];
                }
                cout << endl;
            }

            return 0;
        }
        n += t;
        t +=1;
        
    } 
    cout << "No" <<endl;

    return 0;

   
}

Compiler output:
/tmp/ccXNKr8l.o: in function `main':
a.cc:(.text+0xbf): relocation truncated to fit: R_X86_64_PC32 against symbol `p' defined in .bss section in /tmp/ccXNKr8l.o
a.cc:(.text+0xfd): relocation truncated to fit: R_X86_64_PC32 against symbol `p' defined in .bss section in /tmp/ccXNKr8l.o
a.cc:(.text+0x117): relocation truncated to fit: R_X86_64_PC32 against symbol `p' defined in .bss section in /tmp/ccXNKr8l.o
a.cc:(.text+0x12e): relocation truncated to fit: R_X86_64_PC32 against symbol `p' defined in .bss section in /tmp/ccXNKr8l.o
a.cc:(.text+0x16c): relocation truncated to fit: R_X86_64_PC32 against symbol `p' defined in .bss section in /tmp/ccXNKr8l.o
a.cc:(.text+0x186): relocation truncated to fit: R_X86_64_PC32 against symbol `p' defined in .bss section in /tmp/ccXNKr8l.o
collect2: error: ld returned 1 exit status
Language: C

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

//数列v内に数nが存在するかどうか調べる
bool srt_knsk(vector<int> v,int n){
  for(int i=0; i<v.size(); i++){
    if(v.at(i) == n){
      return true;
    }
  }
  return false;
}

int main(){
  int n;
  cin >> n;
  vector<int> a(446);
  for(int i=0; i<446; i++){
    a[i] = (i+1)*(i+2)/2;
  }
  if(srt_knsk(a,n)){
    cout << "Yes" << endl;
    int k = (1+sqrt(1+8*n))/2;
    cout << k << endl;
    int a[k][k-1];
    int cnt = 1;
    for(int i=0; i<k-1; i++){
      for(int j=i; j<k-1; j++){
        a[i][j] = cnt;
        a[j+1][i] = cnt;
        cnt++;
      }
    }
    for(int i=0; i<k; i++){
      cout << k-1 << " ";
      for(int j=0; j<k-1; j++){
        cout << a[i][j] << " ";
      }
      cout << 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: C++

#include <algorithm>
#include <iostream>
#include <cstdio>
#include <cmath>

using namespace std ;

const int MAXN=1e5+100;

int G[MAXN][MAXN];
int n ;
int cnt ;

int main ()
{
	scanf("%d",&n);
	int d=sqrt(2.0*n);
	if ( d*(d-1)/2!=n && (d-1)*(d-2)/2!=n && d*(d+1)/2!=n ) 
	{
		puts("No");
		return 0 ;
	}
	if ( d*(d-1)/2==n ) d=d;
	else if ( (d-1)*(d-2)/2==n ) d=d-1;
	else if ( d*(d+1)/2==n ) d=d+1;
	puts("Yes");
	printf("%d\n",n);
	for ( int i=1 ; i<=d ; i++ ) 
	{
		printf("%d ",d-1);
		for ( int j=1 ; j<=d ; j++ ) 
		{
			if ( i==j ) continue;
			if ( !G[i][j] ) G[j][i]=G[i][j]=++cnt;
			printf("%d ",G[i][j]);
		}
		puts("");
	}
	return 0 ;
}


Compiler output:
/tmp/ccr4ebVq.o: in function `main':
a.cc:(.text+0xb): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0x28): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0x65): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0x89): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0xa8): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0xe0): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0x104): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0x129): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0x146): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0x1d1): relocation truncated to fit: R_X86_64_PC32 against symbol `cnt' defined in .bss section in /tmp/ccr4ebVq.o
a.cc:(.text+0x1da): additional relocation overflows omitted from the output
collect2: error: ld returned 1 exit status
Language: C++

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

int N;
int T[100010];

bool check(vector<int>& S1, vector<int>& S2)
{
	int c = 0;
	for (auto s1 : S1) {
		for (auto s2 : S2) {
			if (s1 == s2) {
				++c;
				break;
			}
		}
	}
	return c == 1;
}

int main()
{
	cin >> N;
	if (N <= 2) {
		goto Label_No;
	}
	int n2 = 2 * N;
	int sn = (N + 1) / 2;
	int k = n2 / sn;
	if (n2 % sn == 0) {
		vector<vector<int>> SS;
		SS.reserve(k);
		{
			vector<int> S;
			S.resize(sn);
			iota(S.begin(), S.end(), 1);
			SS.push_back(S);
			for (int i = 1; i <= sn; ++i) {
				++T[i];
			}
		}
		int last = sn;
		for (int i = 1; i < k; ++i) {
			vector<int> S;
			S.reserve(sn);
			for (int j = 0; j < sn; ++j) {
				if (j != 0) {
					if (++last > N) {
						last = 1;
					}
				}
				bool found = false;
				for (int k = 0; k < N; ++k) {
					if (T[last] < 2) {
						++T[last];
						found = true;
						break;
					}
					if (++last > N) {
						last = 1;
					}
				}
				if (!found) {
					memset(T, 0, sizeof(int) * (N + 1));
					goto Label_next;
				}
				S.push_back(last);
			}
			SS.push_back(S);
		}
		if (!check(SS[0], SS[2])) {
			memset(T, 0, sizeof(int) * (N + 1));
			goto Label_next;
		}
		cout << "Yes" << endl << k << endl;
		for (auto& S : SS) {
			cout << S.size();
			for (auto s : S) {
				cout << " " << s;
			}
			cout << endl;
		}
		return 0;
	}
Label_next:
	++sn;
	k = n2 / sn;
	if (n2 % sn == 0) {
		vector<vector<int>> SS;
		SS.reserve(k);
		{
			vector<int> S;
			S.resize(sn);
			iota(S.begin(), S.end(), 1);
			SS.push_back(S);
			for (int i = 1; i <= sn; ++i) {
				++T[i];
			}
		}
		int last = sn;
		for (int i = 1; i < k; ++i) {
			vector<int> S;
			S.reserve(sn);
			for (int j = 0; j < sn; ++j) {
				if (j != 0) {
					if (++last > N) {
						last = 1;
					}
				}
				bool found = false;
				for (int k = 0; k < N; ++k) {
					if (T[last] < 2) {
						++T[last];
						found = true;
						break;
					}
					if (++last > N) {
						last = 1;
					}
				}
				if (!found) {
					goto Label_No;
				}
				S.push_back(last);
			}
			SS.push_back(S);
		}
		if (!check(SS[0], SS[2])) {
			goto Label_No;
		}
		cout << "Yes" << endl << k << endl;
		for (auto& S : SS) {
			cout << S.size();
			for (auto s : S) {
				cout << " " << s;
			}
			cout << endl;
		}
		return 0;
	}
Label_No:
	cout << "No" << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:142:1: error: jump to label 'Label_No'
  142 | Label_No:
      | ^~~~~~~~
a.cc:26:22: note:   from here
   26 |                 goto Label_No;
      |                      ^~~~~~~~
a.cc:30:13: note:   crosses initialization of 'int k'
   30 |         int k = n2 / sn;
      |             ^
a.cc:29:13: note:   crosses initialization of 'int sn'
   29 |         int sn = (N + 1) / 2;
      |             ^~
a.cc:28:13: note:   crosses initialization of 'int n2'
   28 |         int n2 = 2 * N;
      |             ^~
Language: C

#include <iostream>
#include <queue>
#include <map>
#include <algorithm>
#include <vector>
#include <cmath>
#include <numeric>
#include <cstdlib>
#include <cstdio>
#include <ctime>
#include <random>

using namespace std;

int main()
{
    int N;
    vector<int> a[1000];
    cin >> N;

    int k, t;
    t = -1;
    for (int i = 2; i < 2 * N; i++)
    {
        if(i * (i + 1) - 2 * N == 0)
        {
            t = i;
            break;
        }
    }

    if(t == -1)
    {
        cout << "No" << endl;
        return 0;
    }
    cout << "Yes" << endl;

    k = t + 1;
    cout << k << endl;

    int cnt = 1;

    for (int i = 1; i <= t;i++)
    {
        for (int j = 1; j <= i;j++)
        {
            a[i - 1].push_back(cnt++);
        }
    }

    for (int i = 1; i <= k - 1;i++)
    {
        cnt = 0;
        cout << t << ' ';
        for (int j = 1; j <= i;j++)
        {
            cout << a[i - 1][j - 1];
            cnt++;
            if(cnt != t)
            {
                cout << ' ';
            }
        }
        for (int j = 1; j <= t - i;j++)
        {
            cout << a[i][i - 1];
            cnt++;
            if (cnt != t)
            {
                cout << ' ';
            }
        }
        cout << endl;
    }
    cout << t << ' ';
    cnt = 0;
    for (int i = 0; i < t; i++)
    {
        cout << a[i][i];
        cnt++;
        if (cnt != t)
        {
            cout << ' ';
        }
    }
    cout << endl;

    return 0;
}

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

using namespace std;

long long int n=0,m=1,c=0,ip;
long long int q[10000][10000];

int main(){
    scanf("%d",&ip);
    for(int i=1;c<10000;i++){
        c+=i;
        if(c==ip)n=i;
    }
    if(n!=0){
        printf("Yes\n");
        printf("%lld\n",n+1);
        for(int i=0;i<=n;i++){
            printf("%lld ",i);
            for(int e=0;e<n;e++){
                if(e<i){
                    q[i][e]=q[e][i-1];
                }
                else{
                    q[i][e]=m;
                    m+=1;
                }
                printf("%lld ",q[i][e]);
            }
            printf("\n");
        }
    }
    else printf("No\n");
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: 'scanf' was not declared in this scope
    7 |     scanf("%d",&ip);
      |     ^~~~~
a.cc:13:9: error: 'printf' was not declared in this scope
   13 |         printf("Yes\n");
      |         ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | using namespace std;
a.cc:30:10: error: 'printf' was not declared in this scope
   30 |     else printf("No\n");
      |          ^~~~~~
a.cc:30:10: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
Language: C++

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

using namespace std ;

int n ;

int main ()
{
	scanf("%d",&n);
	if ( (int)sqrt(n+1.0)*(int)sqrt(n+1.0)!=n+1 ) 
	{
		puts("No");
		return 0 ;
	}
	puts("Yes");
	printf("%d\n",n);
	for ( int i=1 ; i<=n ; i++ ) 
	{
		printf("%d ",n-1);
		for ( int j=1 ; j<=n ; j++ ) 
			if ( i^j ) printf("%d ",j);
		puts("");
	}
	return 0 ;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:19: error: 'sqrt' was not declared in this scope
   12 |         if ( (int)sqrt(n+1.0)*(int)sqrt(n+1.0)!=n+1 )
      |                   ^~~~
Language: C++

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

int main()
{
    int n;
    cin >> n;
    int s = sqrt(n);
    int k = 0;
    for(int i=1; i<s; i++){
        if(i * (i+1) == 2*n){
            k = i+1;
            break;
        }
    }
    if(k == 0){
        cout << "No" << endl;
        return 0;
    }
    
    cout << "Yes" << endl;
    cout << k << endl;
    
    int a[k][k-1] = {};
    int l = 1;
    for(int i=0; i<k; i++){
        for(int j=0; j<k-1; j++){
            if(i==0){
                a[i][j] = l;
                l++;
            }else{
                a[i][j] = a[j][i-1];
            }
        }
    }
    
    for(int i=0; i<k; i++){
        cout << k-1 << " ";
        for(int j=0; j<k-1; j++){
            if(a[i][j] == 0) a[i][j] = n;
            cout << a[i][j] << " ";
        }
        cout << endl;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: 'sqrt' was not declared in this scope
    9 |     int s = sqrt(n);
      |             ^~~~
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
#include <map>

#include <cmath>
#include <cstdlib>
#include <climits>

//#include <stdio.h>
//#include <stdlib.h>
//#include "show_vector.hh"


using namespace std;

#define debug false

int main(int argc, char *argv[]){

  cin >> N;
  if(N == 3){
    cout << "Yes" << endl;
    cout << "3" << endl;
    cout << "2 1 2" << endl;
    cout << "2 2 3" << endl;
    cout << "2 3 1" << endl;
  }else if(N == 1){
    cout << "Yes" << endl;
    cout << "2" << endl;
    cout << "1 1" << endl;
    cout << "1 1" << endl;
  }else{
    cout << "No" << endl;
  }

  return 0;
}


Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:21:10: error: 'N' was not declared in this scope
   21 |   cin >> N;
      |          ^
Language: C++

#include <cstdio>
#include <cstring>
#include <cmath>
#include <algorithm>
using namespace std;
typedef long long LL;

int flag[1000005];
int ji[1000005];
int chu[1005][1005];
int pos[1005];
int main()
{
	int n;
	pos[1] = 1;
	for(int i = 2; i <= 1000; i++) pos[i] = 2;
	for(LL i = 1; i <= 100000; i++)
	{
		LL p = i * (i + 1) / 2;
		if(p > 100000) break;
		ji[p] = i;
		flag[p] = 1;
	}
	scanf("%d", &n);
	if(n == 1) {
		printf("Yes\n");
		printf("2\n1 1\n1 1\n");
	}
	else if(n == 2) {
		printf("No\n");
	}
	else if(n == 3) {
		printf("Yes\n");
		printf("3\n2 1 2\n2 3 1\n2 2 3\n");
	}
	else {
		if(flag[n] == 1) {
			printf("Yes\n");
			printf("%d\n", ji[n] + 1);
			int w = ji[n] + 1;
			int q = ji[n];
			int tot = 1;
			int fl = 0;
			for(int i = 1; i <= 2; i++)
			{
				for(int j = 1; j <= q; j++)
				{
					chu[i][j] = tot;
					tot++;
				}
				tot--;
			}
			tot++;
			for(int i = 3; i <= w; i++)
			{
				pos[i] = i;
				for(int j = 1; j <= q; j++)
				{
					if(j < i) {
						chu[i][j] = chu[j][pos[j]];
						pos[j]++;
					}
					else {
						chu[i][j] = tot;
						tot++;
					}
				}
			}
			for(int i = 1; i <= w; i++)
			{
				for(int j = 1; j <= q; j++)
				{
					if(j == q) printf("%d\n", chu[i][j]);
					else printf("%d ", chu[i][j]);
				}
			}
		}
		else printf("No\n");
	}
}
/*
6
12

1 2 3
3 4 5
1 4 6
2 5 6

10
20
1 2 3 4
4 5 6 7
1 5 8 9
2 6 8 10
3 7 9 10
*

Compiler output:
a.cc:81:1: error: unterminated comment
   81 | /*
      | ^
Language: C++

#include <cstdio>
#include <cstring>
#include <cmath>
#include <algorithm>
using namespace std;
typedef long long LL;

int flag[1000005];
int ji[1000005];
int chu[1005][1005];
int pos[1005];
int main()
{
	pos[1] = 1;
	for(int i = 2; i <= 1000; i++) pos[i] = 2;
	for(LL i = 1; i <= 100000; i++)
	{
		LL p = i * (i + 1) / 2;
		if(p > 100000) break;
		ji[p] = i;
		flag[p] = 1;
	}
	int n;
	scanf("%d", &n);
	if(n == 1) {
		printf("Yes\n");
		printf("2\n1 1\n1 1\n");
	}
	else if(n == 2) {
		printf("No\n");
	}
	else if(n == 3) {
		printf("Yes\n");
		printf("3\n2 1 2\n2 3 1\n2 2 3\n");
	}
	else {
		if(flag[n] == 1) {
			printf("Yes\n");
			printf("%d\n", ji[n] + 1);
			int w = ji[n] + 1;
			int q = ji[n];
			int tot = 1;
			int fl = 0;
			for(int i = 1; i <= 2; i++)
			{
				for(int j = 1; j <= q; j++)
				{
					chu[i][j] = tot;
					tot++;
				}
				tot--;
			}
			tot++;
			for(int i = 3; i <= w; i++)
			{
				pos[i] = i;
				for(int j = 1; j <= q; j++)
				{
					if(j < i) {
						chu[i][j] = chu[j][pos[j]];
						pos[j]++;
					}
					else {
						chu[i][j] = tot;
						tot++;
					}
				}
			}
			for(int i = 1; i <= w; i++)
			{
				for(int j = 1; j <= q; j++)
				{
					if(j == q) printf("%d\n", chu[i][j]);
					else printf("%d ", chu[i][j]);
				}
			}
		}
		else printf("No\n");
	}
}
/*
6
12

1 2 3
3 4 5
1 4 6
2 5 6

10
20
1 2 3 4
4 5 6 7
1 5 8 9
2 6 8 10
3 7 9 10
*

Compiler output:
a.cc:81:1: error: unterminated comment
   81 | /*
      | ^
Language: Java

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        boolean x = false;
        for(int i=1; i<n; i++){
            int j = (i-1)*i;
            if(j == 2n)
            x = true;
        }
        if(x){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
    }
}

Compiler output:
Main.java:10: error: ')' expected
            if(j == 2n)
                     ^
Main.java:10: error: ';' expected
            if(j == 2n)
                      ^
2 errors
Language: Java

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        boolean x = false;
        for(int i=1; i<n; i++){
            int j = (i-1)*i;
            if(j == 2n){
                x = true;
            }
        }
        if(x){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
    }
}

Compiler output:
Main.java:10: error: ')' expected
            if(j == 2n){
                     ^
Main.java:10: error: ';' expected
            if(j == 2n){
                      ^
2 errors
Language: Java

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        boolean x = false;
        for(int i=1; i<n; i++){
            int j = i-1;
            if(i * j== 2n){
                x = true;
            }
        }
        if(x){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
    }
}

Compiler output:
Main.java:10: error: ')' expected
            if(i * j== 2n){
                        ^
Main.java:10: error: ';' expected
            if(i * j== 2n){
                         ^
2 errors
Language: Java

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        boolean x = false;
        for(int i=1; i<n; i++){
            if(i * (i-1) == 2n){
                x = true;
            }
        }
        if(x){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
    }
}

Compiler output:
Main.java:9: error: ')' expected
            if(i * (i-1) == 2n){
                             ^
Main.java:9: error: ';' expected
            if(i * (i-1) == 2n){
                              ^
2 errors
Language: Java

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        boolean x = false;
        for(int i=1; (i-1)*(i-1)<2n; i++){
            if(i*(i-1) == 2n){
                x = true;
            }
        }
        if(x){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
    }
}

Compiler output:
Main.java:8: error: ';' expected
        for(int i=1; (i-1)*(i-1)<2n; i++){
                                  ^
Main.java:8: error: ')' expected
        for(int i=1; (i-1)*(i-1)<2n; i++){
                                   ^
Main.java:8: error: ';' expected
        for(int i=1; (i-1)*(i-1)<2n; i++){
                                        ^
Main.java:9: error: ')' expected
            if(i*(i-1) == 2n){
                           ^
Main.java:9: error: ';' expected
            if(i*(i-1) == 2n){
                            ^
5 errors
Language: Java

import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        boolean x = false;
        for(int i=1; (i-1)*(i-1)<2n; i++){
            if(i(i-1) == 2n){
                x = true;
            }
        }
        if(x){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
  

Compiler output:
Main.java:8: error: ';' expected
        for(int i=1; (i-1)*(i-1)<2n; i++){
                                  ^
Main.java:8: error: ')' expected
        for(int i=1; (i-1)*(i-1)<2n; i++){
                                   ^
Main.java:8: error: ';' expected
        for(int i=1; (i-1)*(i-1)<2n; i++){
                                        ^
Main.java:9: error: ')' expected
            if(i(i-1) == 2n){
                          ^
Main.java:9: error: ';' expected
            if(i(i-1) == 2n){
                           ^
Main.java:17: error: reached end of file while parsing
        }
         ^
6 errors
Language: Java

import java.util.*;

public class Test {
    public static void main(String[] args) {
  Scanner sc=new Scanner(System.in);
double N=sc.nextDouble();
double n=Math.floor(Math.sqrt(2*N))+1;
System.out.println(n*(n-1)==2*N?"Yes":"No");
    }
}

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

#include <bits/stdc++.h>
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define REP(i, n) for(long long i = 0; i < (long long)(n); i++)
#define int long long;
using namespace std;
using ll = long long;
signed main(){
    int N,M;
    string S,T;
    cin>>N>>M>>S>>T;
    int K=__gcd(N,M);
    for(int i=0;i<K;i++)
        if(S[N/K*i]!=T[M/K*i]){
            puts("-1");
            return 0;
        }
    cout<<N/K*M<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:18: error: declaration does not declare anything [-fpermissive]
    4 | #define int long long;
      |                  ^~~~
a.cc:8:5: note: in expansion of macro 'int'
    8 |     int N,M;
      |     ^~~
a.cc:8:9: error: 'N' was not declared in this scope
    8 |     int N,M;
      |         ^
a.cc:8:11: error: 'M' was not declared in this scope
    8 |     int N,M;
      |           ^
a.cc:4:18: error: declaration does not declare anything [-fpermissive]
    4 | #define int long long;
      |                  ^~~~
a.cc:11:5: note: in expansion of macro 'int'
   11 |     int K=__gcd(N,M);
      |     ^~~
a.cc:11:9: error: 'K' was not declared in this scope
   11 |     int K=__gcd(N,M);
      |         ^
a.cc:4:18: error: declaration does not declare anything [-fpermissive]
    4 | #define int long long;
      |                  ^~~~
a.cc:12:9: note: in expansion of macro 'int'
   12 |     for(int i=0;i<K;i++)
      |         ^~~
a.cc:12:13: error: 'i' was not declared in this scope
   12 |     for(int i=0;i<K;i++)
      |             ^
a.cc:12:20: error: expected ')' before ';' token
   12 |     for(int i=0;i<K;i++)
      |        ~           ^
      |                    )
a.cc:12:21: error: 'i' was not declared in this scope
   12 |     for(int i=0;i<K;i++)
      |                     ^
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define REP(i, n) for(long long i = 0; i < (long long)(n); i++)
using namespace std;
using ll = long long;
const int MOD = 1e9 + 7;
#define int ll;
signed main(){
    int N,M;
    string S,T;
    cin>>N>>M>>S>>T;
    int K=__gcd(N,M);
    for(int i=0;i<K;i++)
        if(S[N/K*i]!=T[M/K*i]){
            puts("-1");
            return 0;
        }
    cout<<N/K*M<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:13: error: declaration does not declare anything [-fpermissive]
    7 | #define int ll;
      |             ^~
a.cc:9:5: note: in expansion of macro 'int'
    9 |     int N,M;
      |     ^~~
a.cc:9:9: error: 'N' was not declared in this scope
    9 |     int N,M;
      |         ^
a.cc:9:11: error: 'M' was not declared in this scope
    9 |     int N,M;
      |           ^
a.cc:7:13: error: declaration does not declare anything [-fpermissive]
    7 | #define int ll;
      |             ^~
a.cc:12:5: note: in expansion of macro 'int'
   12 |     int K=__gcd(N,M);
      |     ^~~
a.cc:12:9: error: 'K' was not declared in this scope
   12 |     int K=__gcd(N,M);
      |         ^
a.cc:7:13: error: declaration does not declare anything [-fpermissive]
    7 | #define int ll;
      |             ^~
a.cc:13:9: note: in expansion of macro 'int'
   13 |     for(int i=0;i<K;i++)
      |         ^~~
a.cc:13:13: error: 'i' was not declared in this scope
   13 |     for(int i=0;i<K;i++)
      |             ^
a.cc:13:20: error: expected ')' before ';' token
   13 |     for(int i=0;i<K;i++)
      |        ~           ^
      |                    )
a.cc:13:21: error: 'i' was not declared in this scope
   13 |     for(int i=0;i<K;i++)
      |                     ^
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define REP(i, n) for(long long i = 0; i < (long long)(n); i++)
using namespace std;
using ll = long long;
const int MOD = 1e9 + 7;
#define int ll;
int main(){
    int N,M;
    string S,T;
    cin>>N>>M>>S>>T;
    int K=__gcd(N,M);
    for(int i=0;i<K;i++)
        if(S[N/K*i]!=T[M/K*i]){
            puts("-1");
            return 0;
        }
    cout<<N/K*M<<endl;
}

Compiler output:
a.cc:7:13: error: declaration does not declare anything [-fpermissive]
    7 | #define int ll;
      |             ^~
a.cc:8:1: note: in expansion of macro 'int'
    8 | int main(){
      | ^~~
a.cc:8:5: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    8 | int main(){
      |     ^~~~
a.cc: In function 'int main()':
a.cc:7:13: error: declaration does not declare anything [-fpermissive]
    7 | #define int ll;
      |             ^~
a.cc:9:5: note: in expansion of macro 'int'
    9 |     int N,M;
      |     ^~~
a.cc:9:9: error: 'N' was not declared in this scope
    9 |     int N,M;
      |         ^
a.cc:9:11: error: 'M' was not declared in this scope
    9 |     int N,M;
      |           ^
a.cc:7:13: error: declaration does not declare anything [-fpermissive]
    7 | #define int ll;
      |             ^~
a.cc:12:5: note: in expansion of macro 'int'
   12 |     int K=__gcd(N,M);
      |     ^~~
a.cc:12:9: error: 'K' was not declared in this scope
   12 |     int K=__gcd(N,M);
      |         ^
a.cc:7:13: error: declaration does not declare anything [-fpermissive]
    7 | #define int ll;
      |             ^~
a.cc:13:9: note: in expansion of macro 'int'
   13 |     for(int i=0;i<K;i++)
      |         ^~~
a.cc:13:13: error: 'i' was not declared in this scope
   13 |     for(int i=0;i<K;i++)
      |             ^
a.cc:13:20: error: expected ')' before ';' token
   13 |     for(int i=0;i<K;i++)
      |        ~           ^
      |                    )
a.cc:13:21: error: 'i' was not declared in this scope
   13 |     for(int i=0;i<K;i++)
      |                     ^
Language: C++

    #include<iostream>
    #include<stdio.h>
    //#include <bits/stdc++.h>
    #include<vector>
    #include<float.h>
    #include<iomanip>
    #include<algorithm>
    #include<string>
    #include<cstring>
    #include<math.h>
    #include<cmath>
    #include<sstream>
    #include<set>
    #include<map>
    #include<queue>
    #include<cassert>
    #include<cmath>
    #include<cstdint>
     
    #define INF 1e9
    #define rep(i,n)for(int i=0;(i)<(int)(n);i++)
    #define REP(i,a,b)for(int i=(int)(a);(i)<=(int)(b);i++)
    #define VEC(type, c, n) std::vector<type> c(n);for(auto& i:c)std::cin>>i;
    #define vec(type,n) vector<type>(n)
    #define vvec(m,n) vector<vector<int>> (int(m),vector<int>(n))
    #define ALL(a)  (a).begin(),(a).end()
    #define chmin(a, b) a = min(a, b)
    #define chmax(a, b) a = max(a, b)
     
    using namespace std;
    using ll = long long int;
    using Graph = vector<vector<int>>;
    using P = pair<ll, ll>;
     
const int MOD = 1e9 + 7;
const ll ZER = 0;

//最大公約数
ll gcd(ll a, ll b){
    if(a % b == 0)return b;
    else return gcd(b, a % b);
}

ll lcm(ll a, ll b){
    return a * b / gcd(a, b);
}

int main(){
    int n, m;
    cin >> n >> m;
    string s, t;
    cin >> s >> t;
    int len = lcm(n, m);
    
    bool f = true;
    map<int, char>mp;
    for(int i = 0; len / n * i < n  i++){
        //if(s[len / n * i % n] != t[(len / m * i) % m])f = false;
        mp[len / n * i] = s[len / n * i];
    }
    for(int i = 0; i < m; i += len / m){
        //if(s[len / n * i % n] != t[(len / m * i) % m])f = false;
        if(mp[i] != t[i]){
            cout << -1 << endl;
            return 0;
        }
    }
    cout << len << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:57:35: error: expected ';' before 'i'
   57 |     for(int i = 0; len / n * i < n  i++){
      |                                   ^ ~
      |                                   ;
Language: C++

#include <bits/stdc++.h>
#include <algorithm>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <deque>
#include <functional>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
#define rep(i,s,e) for (int64_t i=s; i<e; i++)
#define pi 3.14159265358979323846264338327950L
using namespace std;

int main() {
  int N, M, G, L, n, m, k=0;
  string S, T;
  cin >> N >> M >> S >> T;
  G=gcd(N,M);
  L=lcm(N,M);
  n=N/G;
  m=M/G;
  rep(i,0,m) {
    S+=S;
  }
  rep (i,0,n) {
    T+=T;
  }
  rep(i,0,G) {
    if (S[i*n]==T[i*m]) {
      k++;
    }
    else {
      break;
    }
  }
  if (k==G) {
    cout << L << endl;
  }
  else {
    cout << -1 << endl;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:48:4: error: expected '}' at end of input
   48 |   }
      |    ^
a.cc:21:12: note: to match this '{'
   21 | int main() {
      |            ^
Language: C++

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

// ----------- define --------------
#define int long long
#define vi vector<int>
#define vc vector<char>
#define ii pair<int,int>
#define fi first
#define sc second
#define stoi stoll
#define all(x) (x).begin(),(x).end()
#define get_bit(x, k) ((x >> k) & 1)
// ---------------------------------

#include <conio.h>

void MAIN() {
  int n, m;
  cin >> n >> m;
  string s, t;
  cin >> s >> t;
  int g = __gcd(n, m);
  for (int i = 0, j = 0; i < n && j < m; i += n / g, j += m / g) {
    if (s[i] != t[j]) {
      cout << -1 << '\n';
      return;
    }
  }
  cout << n / g * m << '\n';
}

signed main() {
  // ios::sync_with_stdio(0); cin.tie(0);
  int T = 1;
  // cin >> T;
  while (T--) MAIN();
}


Compiler output:
a.cc:16:10: fatal error: conio.h: No such file or directory
   16 | #include <conio.h>
      |          ^~~~~~~~~
compilation terminated.
Language: C++

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

// ----------- define --------------
#define int long long
#define vi vector<int>
#define vc vector<char>
#define ii pair<int,int>
#define fi first
#define sc second
#define stoi stoll
#define all(x) (x).begin(),(x).end()
#define get_bit(x, k) ((x >> k) & 1)
// ---------------------------------

#include <conio.h>

void MAIN() {
  int n, m;
  cin >> n >> m;
  string s, t;
  cin >> s >> t;
  int l = n / __gcd(n, m) * m;
  for (int i = 1; l * i <= n * m; i++) {
    int sz = l * i;
    int a = sz / n;
    int b = sz / m;
    int f = 0;
    map<int, char> mp;
    for (int is = 1; is < sz; is += a) {
      mp[is] = s[(is - 1) / a];
    }
    for (int it = 1; it < sz; it += b) {
      if (mp.count(it) && mp[it] != t[(it - 1) / b]) {
        f = 1;
        break;
      }
    }
    if (f == 0) {
      cout << sz << '\n';
      return;
    }
  }
  cout << -1 << '\n';
}

signed main() {
  // ios::sync_with_stdio(0); cin.tie(0);
  int T = 1;
  // cin >> T;
  while (T--) MAIN();
}


Compiler output:
a.cc:16:10: fatal error: conio.h: No such file or directory
   16 | #include <conio.h>
      |          ^~~~~~~~~
compilation terminated.
Language: C

#include<iostream>
using namespace std;
typedef long long ll;

ll calc_gcd(ll a, ll b) {
    if (a % b == 0) return b;
    else return calc_gcd(b, a % b);
}

ll calc_lcm(ll a, ll b) {
    return a * b / calc_gcd(a, b);
}

int main() {
    cin.tie(0);
    cin.sync_with_stdio(0);

    ll n, m;
    string s, t;
    cin >> n >> m >> s >> t;

    ll ans = calc_lcm(n, m);
    ll lcm = calc_lcm(ans / n, ans / m);
    bool ok = true;
    for (int i = 0; i < ans; i += lcm) {
        if (s[i] != t[i]) ok = false;
    }

    if (ok) cout << ans << endl;
    else cout << -1 << endl;
}

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

#include <bits/stdc++.h>
#define _GLIBCXX_DEBUG
#define rep(i,n) for(int i=0;i<(n);++i)
#define repi(i,a,b) for(int i=int(a);i<int(b);++i)
#define all(x) (x).begin(), (x).end()
#define PI 3.14159265358979323846264338327950L
using namespace std;
typedef long long ll;
typedef long double ld;
int GCD(int a,int b){
    if(b==0) return a;
    return GCD(b,a%b);
}
int main() {
    int n,m;
    string s,t;
    cin>>n>>m>>s>>t;
    bool ans=true;
    int l=max(n,m),r=min(n,m);
    int gcd=GCD(l,r);
    int n=n/gcd,m=m/gcd;
    rep(i,gcd){
        if(s[n*i]!=t[m*i]) ans=false;
    }
    if(ans) cout<<n*m;
    else cout<<-1;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:9: error: redeclaration of 'int n'
   21 |     int n=n/gcd,m=m/gcd;
      |         ^
a.cc:15:9: note: 'int n' previously declared here
   15 |     int n,m;
      |         ^
a.cc:21:17: error: redeclaration of 'int m'
   21 |     int n=n/gcd,m=m/gcd;
      |                 ^
a.cc:15:11: note: 'int m' previously declared here
   15 |     int n,m;
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define repd(i,a,b) for (int i=(a);i<(b);i++)
#define rep(i,n) repd(i,0,n)
#define all(x) (x).begin(),(x).end()
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
typedef long long ll;
const long long INF = 1LL << 60;
typedef pair<int, int> P;

ll gcd(ll a, ll b) {
    if (b == 0) return a;
    return gcd(b, a % b);
}

ll lcm(ll a, ll b) {
    return a * b / gcd(a, b);
}

int main()
{
    int N, M;
    cin >> N >> M;
    string S, T;
    cin >> S >> T;

    ll L = lcm(N, M);

    int s = L / N;
    int t = L / M;
    int ss = 0, tt = 0;
    while (1) {
        if (N <= tt || M <= ss) break;
        if (S[tt] != T[ss]) {
            cout << -1 << endl;
            return 0;
        }
        ss += s;
        tt += t;
    }

    else cout << L << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:43:5: error: 'else' without a previous 'if'
   43 |     else cout << L << endl;
      |     ^~~~
Language: C++

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

#define int long long

int main() {
	int n, m;
	cin >> n >> m;
	string s, t;
	cin >> s >> t;
	
	bool ok = true;
	for (int a = 0; a < n; a++) {
		if (a * m % n) {
			continue;
		}
		if (s[a] != t[a * m / n]) {
			ok = false;
		}
	}

	if (ok) {
		cout << lcm(n, m) << endl;
	}
	else {
		cout << -1 << endl;
	}

	return 0;
}


Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

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

#define int long long;

int main() {
	int n, m;
	cin >> n >> m;
	string s, t;
	cin >> s >> t;
	
	bool ok = true;
	for (int a = 0; a < n; a++) {
		if (a * m % n) {
			continue;
		}
		if (s[a] != t[a * m / n]) {
			ok = false;
		}
	}

	if (ok) {
		cout << lcm(n, m) << endl;
	}
	else {
		cout << -1 << endl;
	}

	return 0;
}


Compiler output:
a.cc:4:18: error: declaration does not declare anything [-fpermissive]
    4 | #define int long long;
      |                  ^~~~
a.cc:6:1: note: in expansion of macro 'int'
    6 | int main() {
      | ^~~
a.cc:6:5: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    6 | int main() {
      |     ^~~~
a.cc: In function 'int main()':
a.cc:4:18: error: declaration does not declare anything [-fpermissive]
    4 | #define int long long;
      |                  ^~~~
a.cc:7:9: note: in expansion of macro 'int'
    7 |         int n, m;
      |         ^~~
a.cc:7:13: error: 'n' was not declared in this scope; did you mean 'yn'?
    7 |         int n, m;
      |             ^
      |             yn
a.cc:7:16: error: 'm' was not declared in this scope; did you mean 'tm'?
    7 |         int n, m;
      |                ^
      |                tm
a.cc:4:18: error: declaration does not declare anything [-fpermissive]
    4 | #define int long long;
      |                  ^~~~
a.cc:13:14: note: in expansion of macro 'int'
   13 |         for (int a = 0; a < n; a++) {
      |              ^~~
a.cc:13:18: error: 'a' was not declared in this scope
   13 |         for (int a = 0; a < n; a++) {
      |                  ^
a.cc:13:30: error: expected ')' before ';' token
   13 |         for (int a = 0; a < n; a++) {
      |             ~                ^
      |                              )
a.cc:13:32: error: 'a' was not declared in this scope
   13 |         for (int a = 0; a < n; a++) {
      |                                ^
Language: C++

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

using ll = long long;

ll lcm(ll a, ll b) {
	return a * b / __gcd(a, b);

int main() {
	ll n, m;
	cin >> n >> m;
	string s, t;
	cin >> s >> t;
	
	bool ok = true;
	for (ll i = 0; i < n; i++) {
		if (i * m % n) {
			continue;
		}
		if (s[i] != t[i * m / n]) {
			ok = false;
		}
	}
	
	if (ok) {
		cout << lcm(m, n) << endl;
	}
	else {
		cout << -1 << endl;
	}
	return 0;
}


Compiler output:
a.cc: In function 'll lcm(ll, ll)':
a.cc:9:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
    9 | int main() {
      |         ^~
a.cc:9:9: note: remove parentheses to default-initialize a variable
    9 | int main() {
      |         ^~
      |         --
a.cc:9:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:9:12: error: a function-definition is not allowed here before '{' token
    9 | int main() {
      |            ^
a.cc:32:2: error: expected '}' at end of input
   32 | }
      |  ^
a.cc:6:20: note: to match this '{'
    6 | ll lcm(ll a, ll b) {
      |                    ^
Language: C++

#include <bits/stdc++.h>
//#include <boost/multiprecision/cpp_int.hpp>
using namespace std;
//using namespace boost::multiprecision;
typedef long long int ll;
typedef long double ld;
#define MOD 1000000007
#define ALL(obj) (obj).begin(),(obj).end()
template<class T>inline bool chmax(T& a,T b){if (a<b){a=b;return 1;}return 0;}
template<class T>inline bool chmin(T& a,T b){if (a>b){a=b;return 1;}return 0;}
const long long INF = 1LL << 60;
bool pairCompare(const pair<double,ll>& firstElof, const pair<double,ll>& secondElof){
    return firstElof.first < secondElof.first;
}
bool pairCompareSecond(const pair<double,ll>& firstElof, const pair<double,ll>& secondElof){
    return firstElof.second < secondElof.second;
}
//四方向への移動ベクトル
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};

struct edge{//グラフに使うヤツ
    ll from,to,cost;
};

typedef vector<vector<edge> > G;
ll gcd(ll a,ll b){
    if (a%b==0)return(b);
    else return(gcd(b,a%b));
}

int main(){
    ll a,b;
    cin >> a >> b;
    ll l=a*b/gcd(a,b);
    vector<ll> n,m;
    string s,t;
    cin >> s >>t;
    for (ll i=0;i<a;i++){
        n.push_back(i*(l/a));
    }
    for (ll i=0;i<b;i++){
        m.push_back(i*(l/b));
    }
    if (n.size()!=s.size() or m.size()!=t.size()){
        cout << -1 << endl;
        return 0;
    }

    ll of=0;
    for (ll i=0;i<n.size();i++){
        while(of<m.size()-1 and n[i]>m[of]){
            of++;
        }
        if (n[i]==m[of]){
            if (s[i]]!=t[of]){
                cout << -1 << endl;
                return 0;
            }
        }
    }    
    cout << l << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:56:21: error: expected ')' before ']' token
   56 |             if (s[i]]!=t[of]){
      |                ~    ^
      |                     )
a.cc:56:21: error: expected primary-expression before ']' token
Language: C++

int main(){
ll n,m;
cin>>n>>m;
ll a = __gcd(n,m);
ll b = n*m/a;
string s,t; cin>>s>>t;
ll c = b/m;
ll d = b/n;
string ss="",tt="";
rep(i,n){
if(i%c==0) ss+=s.at(i);
}
rep(i,m){
if(i%d==0) tt+=t.at(i);
}
if(ss==tt) cout << b << endl;
else cout << -1 << endl;}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:1: error: 'll' was not declared in this scope
    2 | ll n,m;
      | ^~
a.cc:3:1: error: 'cin' was not declared in this scope
    3 | cin>>n>>m;
      | ^~~
a.cc:3:6: error: 'n' was not declared in this scope
    3 | cin>>n>>m;
      |      ^
a.cc:3:9: error: 'm' was not declared in this scope
    3 | cin>>n>>m;
      |         ^
a.cc:4:3: error: expected ';' before 'a'
    4 | ll a = __gcd(n,m);
      |   ^~
      |   ;
a.cc:5:3: error: expected ';' before 'b'
    5 | ll b = n*m/a;
      |   ^~
      |   ;
a.cc:6:1: error: 'string' was not declared in this scope
    6 | string s,t; cin>>s>>t;
      | ^~~~~~
a.cc:6:18: error: 's' was not declared in this scope
    6 | string s,t; cin>>s>>t;
      |                  ^
a.cc:6:21: error: 't' was not declared in this scope
    6 | string s,t; cin>>s>>t;
      |                     ^
a.cc:7:3: error: expected ';' before 'c'
    7 | ll c = b/m;
      |   ^~
      |   ;
a.cc:8:3: error: expected ';' before 'd'
    8 | ll d = b/n;
      |   ^~
      |   ;
a.cc:9:7: error: expected ';' before 'ss'
    9 | string ss="",tt="";
      |       ^~~
      |       ;
a.cc:10:5: error: 'i' was not declared in this scope
   10 | rep(i,n){
      |     ^
a.cc:10:1: error: 'rep' was not declared in this scope
   10 | rep(i,n){
      | ^~~
a.cc:16:4: error: 'ss' was not declared in this scope
   16 | if(ss==tt) cout << b << endl;
      |    ^~
a.cc:16:8: error: 'tt' was not declared in this scope
   16 | if(ss==tt) cout << b << endl;
      |        ^~
a.cc:16:12: error: 'cout' was not declared in this scope
   16 | if(ss==tt) cout << b << endl;
      |            ^~~~
a.cc:16:20: error: 'b' was not declared in this scope
   16 | if(ss==tt) cout << b << endl;
      |                    ^
a.cc:16:25: error: 'endl' was not declared in this scope
   16 | if(ss==tt) cout << b << endl;
      |                         ^~~~
a.cc:17:6: error: 'cout' was not declared in this scope
   17 | else cout << -1 << endl;}
      |      ^~~~
a.cc:17:20: error: 'endl' was not declared in this scope
   17 | else cout << -1 << endl;}
      |                    ^~~~
Language: C++

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

ll gcd(ll lhs, ll rhs)
{
  ll a = min(lhs, rhs);
  ll b = max(lhs, rhs);
  ll r = a % b;
  while (r != 0)
  {
    a = b;
    b = r;
    r = a % b;
  }
  return b;
}

int_fast64_t main() {
  ll N, M;
  cin >> N >> M;

  string S, T;
  cin >> S >> T;

  ll g = gcd(N, M);
  ll h = N * M / g;

  bool ok = true;
  for (ll i = 0; i < g; ++i) {
    char lhs = S[i*h/M];
    char rhs = T[i*h/N];
    if (lhs != rhs)
      ok = false;
  }

  if (ok) cout << h << endl;
  else cout << "-1"s << endl;
  return 0;
}


Compiler output:
a.cc:20:1: error: '::main' must return 'int'
   20 | int_fast64_t main() {
      | ^~~~~~~~~~~~
Language: C++

from fractions import gcd

N, M = map(int,input().split())
S = input()
T = input()
L = (N*M) // gcd(N,M)
S_a = L // N
T_a = L // M

i = 0
j = 0
while True:
    if S[i] != T[j] and i == j:
        print('-1')
        break
    i += S_a
    j += T_a
    if i >= N or j >= M:
        print(L)
        break
    
        


Compiler output:
a.cc:14:15: warning: multi-character character constant [-Wmultichar]
   14 |         print('-1')
      |               ^~~~
a.cc:1:1: error: 'from' does not name a type
    1 | from fractions import gcd
      | ^~~~