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

#include<bits/stdc++.h>
using namespace std;
int main(){
 	int k,i,j,l;
  	cin>>l;
  	int ans = 0;
  	for(i=1;i<=l;++i)
      	for(j=1;j<=l;++j)
          	for(k=1;k<=l;++k)
				ans += __gcd(__gcd(a,b),c);
  	cout<<ans<<"\n";
}			


Compiler output:
a.cc: In function 'int main()':
a.cc:10:52: error: 'a' was not declared in this scope
   10 |                                 ans += __gcd(__gcd(a,b),c);
      |                                                    ^
a.cc:10:54: error: 'b' was not declared in this scope
   10 |                                 ans += __gcd(__gcd(a,b),c);
      |                                                      ^
a.cc:10:57: error: 'c' was not declared in this scope
   10 |                                 ans += __gcd(__gcd(a,b),c);
      |                                                         ^
Language: C

#include<bits/stdc++.h>
using namespace std;
int main(){
 	int k,i,j,l;
  	cin>>l;
  	int ans = 0;
  	for(i=1;i<=l;++i)
      	for(j=1;j<=l;++j)
          	for(k=1;k<=l;++k)
				ans += __gcd(__gcd(a,b),c);
  	cout<<ans<<"\n";
}			


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

// Knock, Knock. Tera baap aaya
#include <bits/stdc++.h>
#define int long long
#define sz(x) (int)(x.size())
using namespace std;

int32_t main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);  

    int ans = 0;
    int k;	cin >> k;
    for(int i = 1; i <= k; i++)
    	for(int j = 1; j <= k; j++)
    		for(int l = 1; l <= k; l++)
    			ans += __gcd(i, __gcd(j, l));
    		cout << ans;
}


Compiler output:
main.c:2:10: fatal error: bits/stdc++.h: No such file or directory
    2 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C

#include<stdio.h>
int main()
{
  int a,i,j,k,l,d;
scanf("%d",&a);
  d=0;

  for(i=1;i<a+1;++i)
  {
    for(j=1;j<a+1;j++)
    {
      for(k=1;k<a+1;++k)
      {
       l=gcd(i,j,l);
      d=d+l;
      }
    }
  }
printf("%d",d);

return 0;
}

Compiler output:
main.c: In function 'main':
main.c:14:10: error: implicit declaration of function 'gcd' [-Wimplicit-function-declaration]
   14 |        l=gcd(i,j,l);
      |          ^~~
Language: Java

import java.util.Scanner;
public class Main2{
 public static void main(String[] args) {
   Scanner kbd = new Scanner(System.in);
   int k =kbd.nextInt();
   long a=0;
   for(int i=1;i<=k;i++){
     for(int l=1;l<=k;l++){
       for(int h=1;h<=k;h++){
         int d=gcd(i,l);
         int e=gcd(d,h);
         a=a+e;
       }
     }
   }
  System.out.println(a);
}

   static int gcd (int a, int b) {
     return b>0?gcd(b,a%b):a;
   }
}


Compiler output:
Main.java:2: error: class Main2 is public, should be declared in a file named Main2.java
public class Main2{
       ^
1 error
Language: C

#include <bits/stdc++.h>
using namespace std;
int gcd(int a,int b){
  int r;
  while(b>0){
    r=a%b;
    a=b;
    b=r;
  }
  return a;
} 
int main() {
  int n;
  cin >> n;
  int i,j,k;
  int sum=0;
  for(i=1;i<n+1;i++){
    for(j=1;j<n+1;j++){
      for(k=1;k<n+1;k++){
        sum+=gcd(j,gcd(i,k));
        
      }
    }
  }
  cout << sum;
}
        
  
        
  

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<iostream>
#include<algorithm>
using namespace std;
int gcd(int a,int b){
  if(b>a){swap(a,b);}
	while(b!=0){
      a=a%b;
      swap(a,b);
    } 
  return a;
}
int main(){
  int ans=0;
int n;cin>>n;
  for(int i=1;i<=n;i++){
  	for(int j=1;j<=n;j++){
      int k=gcd(i,j);
      for(int h=1;h<n;h++){
      	ans+=gcd(h,k);
      }
  }
    cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:2: error: expected '}' at end of input
   24 | }
      |  ^
a.cc:12:11: note: to match this '{'
   12 | int main(){
      |           ^
Language: C++

#include<iostream>
using namespace std;
int gcd(int a,int b) {
  if(b==0) return a;
  else return gcd(b,a%b);
}

int main() {
  int K,
  cin>>K;
  int sum =0;
  
  for(int i=1;i<=K;i++) {
    for(int j=1;j<=K;j++) {
      for(int k=1;k<=K;k++) {
        sum += gcd(i,gcd(j,k));
      }
    }
  }
  cout<<sum<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:6: error: expected initializer before '>>' token
   10 |   cin>>K;
      |      ^~
Language: C++

#include<iostream>
#define long long ll
using namespace std;
int gcd2(int x,int y){
  if(y==0) return x;
  return gcd2(y,x%y);
}
int gcd(int a,int b,int c){
  return gcd2(gcd2(a,b),c);
}
int main(){
  int K;cin>>K;
  ll sum=0;
  for(int a=1;a<=K;a++){
    for(int b=1;b<=K;b++){
      for(int c=1;c<=K;c++){
        sum+=gcd(a,b,c);
      }
    }
  }
  cout<<sum<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:3: error: 'll' was not declared in this scope
   13 |   ll sum=0;
      |   ^~
a.cc:17:9: error: 'sum' was not declared in this scope
   17 |         sum+=gcd(a,b,c);
      |         ^~~
a.cc:21:9: error: 'sum' was not declared in this scope
   21 |   cout<<sum<<endl;
      |         ^~~
Language: C

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

int gcd(int a, int b){
    int r= a%b;
    while(r>0){
        a=b;
        b=r;
        r=a%b;
    }
    return(b);
}

int main() {
    int K;
    cin >> K;
    int sum=0;
    for(int a=1; a<=K; a++){
        for(int b=1; b<=K; b++){
            for(int c=1; c<=K; c++){
                sum += gcd(a, gcd(b,c));
            }
        }
    }
    cout << sum << endl;
}

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

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

int gcd(int m, int n){
   while (n != 0){
      int t = n;
      n = m % n;
      m = t;
   }
   return m;
}

int main(){
   int K;
   cin >> K;
   vector<int> gcd_ab;
   for (int m = K; m>0; m--){
      for (int n = K; n>0; n--){
         if (m > n){
            gcd_ab.push_back(gcd(m, n));
         } else{
            gcd_ab.push_back(gcd(n, m));
         }
      }
   }

   int sum = 0;
   for (int x : gcd_ab){
      for (int i=K; i>0; i--){
         int m, n;
         if (i > x){
            m = i;
            n = x;
         }else{
            m = x;
            n = i;
         }
         sum += gcd(m, n);
      }
   }

   cout << sum << endl;

   //for (int i=0; i<gcd_ab.size(); i++)
   //   cout << gcd_ab.at(i) << " " << 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 <stdio.h>
int gcd(int , int);

int main(){
  int K;
  long sum = 0;
  int ans_1;
  scanf("%d", &K);

  for(int a=1; a<=K; a++){
    for(int b=1; b<=K; b++){
      ans_1=gcd(a, b);

      for(c=1; c<=K; c++){
        sum += gcd(ans_1, c);
      }
    }
  }
  printf("%ld", sum);
  return 0;
}

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

Compiler output:
main.c: In function 'main':
main.c:14:11: error: 'c' undeclared (first use in this function)
   14 |       for(c=1; c<=K; c++){
      |           ^
main.c:14:11: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
int gcd(int , int);

int main(){
  int K;
  long sum = 0;
  int ans_1;
  scanf("%d", &K);

  for(int a=1; a<=K; a++){
    for(int b=1; b<=K; b++){
      ans_1=gcd(a, b);

      for(c=1; c<=K; c++){
        sum += gcd(ans_1, c);
      }
    }
  }
  printf("%d", sum);
  return 0;
}

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

Compiler output:
main.c: In function 'main':
main.c:14:11: error: 'c' undeclared (first use in this function)
   14 |       for(c=1; c<=K; c++){
      |           ^
main.c:14:11: note: each undeclared identifier is reported only once for each function it appears in
Language: C

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

int gcd2(int,int);
int gcd3(int,int,int);

int main(){

    int ans=0;
    int k;
    cin>>k;

    for(int a=1;a<=k;a++){
        for(int b=1;b<=k;b++){
            for(int c=1;c<=k;c++){
                ans+=gcd3(a,b,c);
            }
        }
    }
    cout<<ans<<endl;



    return 0;
}

int gcd2(int a,int b){

    if(a<b) swap(a,b);
    if(a%b==0) return b;
    
    return gcd2(b,a%b);

}


int gcd3(int a,int b,int c){

    return gcd2(gcd2(a,b),c);

}


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

#include <bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin>>n;
  int sum=0;
  for(int i=0;i<n;i++){
    for(int k=0;k<n;k++){
      for(int j=0;j<n;j++){
        sum +=gcd(i,k,j);
      }
    }
  }
  cout<<sum<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:18: error: no matching function for call to 'gcd(int&, int&, int&)'
   10 |         sum +=gcd(i,k,j);
      |               ~~~^~~~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:58,
                 from a.cc:1:
/usr/include/c++/14/numeric:173:5: note: candidate: 'template<class _Mn, class _Nn> constexpr std::common_type_t<_Mn, _Nn> std::gcd(_Mn, _Nn)'
  173 |     gcd(_Mn __m, _Nn __n) noexcept
      |     ^~~
/usr/include/c++/14/numeric:173:5: note:   candidate expects 2 arguments, 3 provided
Language: C

#include "bits/stdc++.h"
#define rep(i,n) for(int i=0;i<(n);++i)
#define rep_b(i,n) for(int i=1;i<=(n);++i)

using namespace std;

int main()
{
	int N, a, b, c, sum = 0;
	cin >> N;
	rep_b(a, N)
		rep_b(b, N)
		rep_b(c, N)
	{
		sum += gcd(c, gcd(a, b));
	}
	cout << sum;
	return 0;
}

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

#include "bits/stdc++.h"
#define rep(i,n) for(int i=0;i<(n);++i)
#define rep_b(i,n) for(int i=1;i<=(n);++i)

using namespace std;

int gcd(int n, int m)
{
	int r;
	if (n > m) {
		int t = m;
		m = n;
		n = t;
	}
	while ((r = m % n) != 0) {
		m = n;
		n = r;
	}
	return n;
}

int main()
{
	int N, a, b, c, sum = 0;
	cin >> N;
	rep_b(a, N)
		rep_b(b, N)
		rep_b(c, N)
	{
		sum += gcd(c, gcd(a, b));
	}
	cout << sum;
	return 0;
}

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

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

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

int main()
{
  int a,b,c,ans;
  cin >> a >> b >> c;
  ans = gcd(a,gcd(b,c));
  
  cout << ans ;
  

return 0;
}


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

#include<bits/stdc++.h> 
using namespace std;
int main(){
	int K; cin >> K;
	int s=0;
	for(int i=1; i<=n; i++){
		for(int j=1; j<=n; j++){
			for(int k=1; k<=n; k++){
				s += gcd(i, gcd(j, k));
			}
		}
	}
	cout <<s<<endl ;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:25: error: 'n' was not declared in this scope
    6 |         for(int i=1; i<=n; i++){
      |                         ^
Language: C++

#include<bits/stdc++.h> 
using namespace std;
int main(){
	int K; cin >> K;
	int s=0;
	for(int i=1; i<=n; i++){
		for(int j=1; j<=n; j++){
			for(int k=1; k<=n; k++){
				s += gcd(i, gcd(j, k));
			}
		}
	}
	cout << res<<endl ;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:25: error: 'n' was not declared in this scope
    6 |         for(int i=1; i<=n; i++){
      |                         ^
a.cc:13:17: error: 'res' was not declared in this scope
   13 |         cout << res<<endl ;
      |                 ^~~
Language: C

#include<bits/stdc++.h>
using namespace std;
#define ll long long
int  k;
ll ans;
int main()
{

cin>>k;
for(int a=1;a<=k;a++)
   for(int b=1;b<=k;b++)
        for(int c=1;c<=k;c++)
{
ans+=__gcd(__gcd(a,b),c);	
}
cout<<ans;
return 0;

}

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

#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll ans,n;
int main(){
	cin>>n;
	for(int a=1;a<=n;a++)
		for(int b=1;b<=n;b++)
			for(int c=1;c<=n;c++){
				ans+=__gcd(__gcd(a,b),c);
			}
	cout<<ans;
	return 0;
}

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

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int k,ans;
int main(){
    cin>>k;
    for(int a=1;a<=k;a++)
      for(int b=1;b<=k;b++)
        for(int c=1;c<=k;c++)
        {
        	ans+=__gcd(__gcd(a,b),c);
		}
	cout<<ans;
	return 0;
}


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

from fractions import gcd
k = int(input())
ans = 0
for i in range(1, k+1):
    for j in range(1, k+1):
        for y in range(1, k+1):
            ans += gcd(gcd(i,j), y)
print(ans)


Compiler output:
main.c:1:1: error: unknown type name 'from'
    1 | from fractions import gcd
      | ^~~~
main.c:1:16: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'import'
    1 | from fractions import gcd
      |                ^~~~~~
main.c:1:16: error: unknown type name 'import'
Language: C

#include<bits/stdc++.h>
using namespace std;
#define ll long long
ll k;
ll ans;
int main()
{
cin>>k;
for(int a=1;a<=k;a++)
for(int b=1;b<=k;b++)
for(int c=1;c<=k;c++)
{
ans+=__gcd(__gcd(a,b),c);	
}
cout<<ans;
return 0;

}

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

#include<bits/stdc++.h>
using namespace std;
#define ll long long
ll k;
ll ans;
int main()
{
cin>>k;
for(int a=1;a<=k;a++)
for(int b=1;b<=k;b++)
for(int c=1;c<=k;c++)
{
ans+=__gcd(__gcd(a,b),c);	
}
return 0;

}


Compiler output:
main.c:1:9: fatal error: bits/stdc++.h: No such file or directory
    1 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: Java

import java.util.Scanner;

public class C162 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int K = sc.nextInt();
		sc.close();
		int s=0;
		for(int i=1; i<=K; i++) {
			for(int j=1; j<=K; j++) {
				for(int k=1; k<=K; k++) {
					s+=gcd(gcd(i,j),k);
				}
			}
		}
		System.out.println(s);
	}

	public static int gcd(int a, int b) {
		int r;
		while((r = a%b) != 0) {
			a=b;
			b=r;
		}
		return b;
	}

}


Compiler output:
Main.java:3: error: class C162 is public, should be declared in a file named C162.java
public class C162 {
       ^
1 error
Language: C

#include <iostream>
using namespace std;

int k;

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

int main() {
	cin >> k;
	long long ans = 0;
	for (int a=1; a<=k; a++) {
		for (int b=1; b<=k; b++) {
			for (int c=1; c<=k; c++) {
				ans += gcd(a, gcd(b, c));
			}
		}
	}
	cout << ans;
}

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

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a,h;
	cin>>a;
	h=0;
	for(int i=1;i<=a;i++)
	for(int j=1;j<=a;j++)
	for(int k=1;k<=a;k++)
	for(int l=i;l>=1;l--)
	{
	    if(i%l==0&&j%l==0&&k%l==0)
	    {
	    	h+=l;
	    	break;
		}
	}
	cout<<h;
    return 0;
}

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

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main()
{
	int a,b,r,A,B;
	cin>>a>>b;
	A=a;B=b;
	r=a%b;
	while(r!=0)
	{
		a=b; 
		b=r;
		r=a%b;
	}
	cout<<b<<endl;
    return 0;
}


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

import java.util.Scanner;
public class RBG {
    private static int gcd(int p,int q){
        int temp=p%q;
        while (temp!=0) {
            p = q;
            q = temp;
            temp = p % q;
        }
        return q;
    }
    
    public static int gcd(int a,int b,int c){
        return gcd(gcd(a,b),c);
    }
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int k=sc.nextInt();

        int sum=0;
        for(int i=1;i<k+1;i++){
            for(int j=1;j<k+1;j++){
                for(int m=1;m<k+1;m++){
                    sum+=gcd(i,j,m);
                }
            }
        }
        System.out.println(sum);


    }
}


Compiler output:
Main.java:2: error: class RBG is public, should be declared in a file named RBG.java
public class RBG {
       ^
1 error
Language: C

/******************************************************************************

            EYENINE,THE ELDER_WAND!!!
            THE ROOT OVER MINUS EIGHTY ONE!!

*******************************************************************************/

#include<bits/stdc++.h>
#define ALL_UP_WITH return 0
#define tc int tt;tt=read();while(tt--)
#define vi vector<int>
using namespace std;
int count1=0,n;
int gcd(int p, int q){
 if(p % q == 0)return q;
 return gcd(q, p % q);
 }

int main(){

    ios::sync_with_stdio(false);
    cin.tie(0);
long long int k;cin>>k;
 long long int ans=0;
    for(int i=0;i<k;i++)
        for(int j=0;j<k;j++)
            for(int p=0;p<k;p++)
                    ans+=gcd(i+1,gcd(j+1,p+1));

    cout<<ans<<endl;

    ALL_UP_WITH;
}


Compiler output:
main.c:8:9: fatal error: bits/stdc++.h: No such file or directory
    8 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C

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

int main()
{
    int n, ans = 0, a, b, c, i;
    cin>>n;
    for(a = 1; a <= n; a++)
    {
        for(b = 1; b <= n; b++)
        {
            for(c = 1; c <= n; c++)
            {
                i = __gcd(c, b);
                ans += __gcd(a, i);
            }
        }
    }
    cout<<ans;
    return 0;
}


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 <iostream>
#include <map>
#include <utility>

using namespace std;

long long int GCD(long long int x, long long int y) {
    if(x<y) swap(x, y);
    if(y==0) return x;
    return GCD(y, x%y);
}

int main() {
    long long int K;
    cin >> K;
    map<pair<int, int>, long long int> mp;
    for(long long int i=1; i<=K; i++) {
        for(long long j=i; j<=K; j++) {
            mp[make_pair(i, j)] = GCD(i, j);
            if(i==j) continue;
            mp[make_pair(j, i)] = mp[make_pair(i, j)];
        }
    }

    long long int ans=0;
    for(long long int i=1; i<=K; i++) {
        for(long long int j=i; j<=K; j++) {
            long long int ij=mp[make_pair(i, j)];
            for(long long int k=j; k<=K; k++) {
                if(i==j && j==k) {
                    ans += mp[make_pair(ij, k)];
                } else if(i==j || j==k) {
                    ans += mp[make_pair(ij, k)]*3;
                } else {
                    ans += mp[make_pair(ij, k)]*6;
                }
            }
        }
    }
    cout << ans << endl;

    return 0;
    
}

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

//ABC 162 C
#include <iostream>
using namespace std;

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

}
int main(){
    long long int a,b,c,d;
    b = c = d = 0;
    cin >> a;
    for(int i = 1;i <= a;i++){
        for(int ii = 1;ii <= a;ii++){
            for(int iii = 1;iii <= a;iii++){
                b = gcd(i,ii);
                c = gcd(b,iii);
                d = d + c;
            }
        }
    }
    cout << d << endl;


}

Compiler output:
a.cc: In function 'int gcd(int, int)':
a.cc:9:30: error: expected ';' before '}' token
    9 |         return gcd(b , a % b)
      |                              ^
      |                              ;
   10 |     }
      |     ~
Language: C++

//ABC 162 C
#include <iostream>
using namespace std;

int fact(int a,int b){
    int i,ii,kazu,kazuzu,ireka;
    if(a < b){
        ireka = a;
        a = b;
        b = ireka;
    }
    if(a > b){
        while(i == 0){
            kazu = a / b;
            if(b * kazu == a){
                i = 1;
            }else{
                kazuzu = a;
                a = b;
                b = kazuzu - kazu * b;
            }
        }
        return(b);
    }else if(a == b){
        return(a);
    }
}
int gcd(int a,int b){
    if(a % b == 0){
        return(b);
    }else{
        return gcd(b , a % b)
    }

}
int main(){
    long long int a,b,c,d;
    b = c = d = 0;
    cin >> a;
    for(int i = 1;i <= a;i++){
        for(int ii = 1;ii <= a;ii++){
            for(int iii = 1;iii <= a;iii++){
                b = gcd(i,ii);
                c = gcd(b,iii);
                d = d + c;
            }
        }
    }
    cout << d << endl;


}

Compiler output:
a.cc: In function 'int gcd(int, int)':
a.cc:32:30: error: expected ';' before '}' token
   32 |         return gcd(b , a % b)
      |                              ^
      |                              ;
   33 |     }
      |     ~                         
a.cc: In function 'int fact(int, int)':
a.cc:27:1: warning: control reaches end of non-void function [-Wreturn-type]
   27 | }
      | ^
Language: C

//ABC 162 C
#include <iostream>
using namespace std;

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

}
int main(){
    long long int a,b,c,d;
    b = c = d = 0;
    cin >> a;
    for(int i = 1;i <= a;i++){
        for(int ii = 1;ii <= a;ii++){
            for(int iii = 1;iii <= a;iii++){
                b = gcd(i,ii);
                c = gcd(b,iii);
                d = d + c;
            }
        }
    }
    cout << d << endl;


}

Compiler output:
main.c:2:10: fatal error: iostream: No such file or directory
    2 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/sdtc++.h>
#include<math.h>
using namespace std;
int main(){
  int gcd(int p,int q){
    while(q!=0){
      int r=p%q;
          p=q;
          q=r;
    }
    return p;
  }
  return 0;
}

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

#include <iostream>
#include <stdio.h>
#include <bits/stdc++.h>
#include <math.h>
using namespace std;
int gcd(int x, int y){
    if (y>x){
       swap(x,y); 
    }
    while (y!=0){
        int r=x%y;
        x=y;
        y=r;
    }
    return x;
}

int gcd3(int x, int y, int z){
    int a=gcd(x,y);
    int b=gcd(a,z);
    return b;
}
int main(){
    int sum=0;
    int k;
    cin>>k;
    for (int i=1; i<=k; i++){
        for (int j=1; j<=k; j++){
            for (int t=1; t<=k; t++){
                sum+=gcd3(i,j,t);
            }
        }
    }
    cout<<sum<<endl;
}

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

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

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

int main(void)
{
  ll N, sum = 0;
  cin >> N;

  int i, j, k;
  for (i=1;i<=N;i++){
    for (j=1;j<=N;j++){
      for (k=1;k<=N;k++){
        sum += my_gcd(my_gcd(i, j), k);
      }
    }
  }

  cout << sum << endl;
  
  return 0;
}


Compiler output:
a.cc: In function 'int my_gcd(int, int)':
a.cc:10:10: error: 'gcd' was not declared in this scope
   10 |   return gcd(b, a%b);
      |          ^~~
Language: C++

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

int my_gcd(a, b)
{
  if (a%b == 0){
    return b;
  }
  return my_gcd(b, a%b);
}

int main(void)
{
  ll N, sum = 0;
  cin >> N;

  int i, j, k;
  for (i=1;i<=N;i++){
    for (j=1;j<=N;j++){
      for (k=1;k<=N;k++){
        sum += my_gcd(my_gcd(i, j), k);
      }
    }
  }

  cout << sum << endl;
  
  return 0;
}


Compiler output:
a.cc:5:12: error: 'a' was not declared in this scope
    5 | int my_gcd(a, b)
      |            ^
a.cc:5:15: error: 'b' was not declared in this scope
    5 | int my_gcd(a, b)
      |               ^
a.cc:5:16: error: expression list treated as compound expression in initializer [-fpermissive]
    5 | int my_gcd(a, b)
      |                ^
a.cc: In function 'int main()':
a.cc:22:29: error: 'my_gcd' cannot be used as a function
   22 |         sum += my_gcd(my_gcd(i, j), k);
      |                       ~~~~~~^~~~~~
a.cc:22:22: error: 'my_gcd' cannot be used as a function
   22 |         sum += my_gcd(my_gcd(i, j), k);
      |                ~~~~~~^~~~~~~~~~~~~~~~~
Language: C++

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

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

int main(void)
{
  ll N, sum = 0;
  cin >> N;

  int i, j, k;
  for (i=1;i<=N;i++){
    for (j=1;j<=N;j++){
      for (k=1;k<=N;k++){
        sum += my_gcd(my_gcd(i, j), k);
      }
    }
  }

  cout << sum << endl;
  
  return 0;
}


Compiler output:
a.cc:5:12: error: 'a' was not declared in this scope
    5 | int my_gcd(a, b)
      |            ^
a.cc:5:15: error: 'b' was not declared in this scope
    5 | int my_gcd(a, b)
      |               ^
a.cc:5:16: error: expression list treated as compound expression in initializer [-fpermissive]
    5 | int my_gcd(a, b)
      |                ^
a.cc: In function 'int main()':
a.cc:22:29: error: 'my_gcd' cannot be used as a function
   22 |         sum += my_gcd(my_gcd(i, j), k);
      |                       ~~~~~~^~~~~~
a.cc:22:22: error: 'my_gcd' cannot be used as a function
   22 |         sum += my_gcd(my_gcd(i, j), k);
      |                ~~~~~~^~~~~~~~~~~~~~~~~
Language: C

k = gets.to_i
total = 0

(1..k).each do |h|
  (1..k).each do |i|
    t = h.gcd(i)
    (1..k).each do |j|
      total += t.gcd(j)
    end
  end
end

puts total

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | k = gets.to_i
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'k' [-Wimplicit-int]
main.c:1:5: error: 'gets' undeclared here (not in a function)
    1 | k = gets.to_i
      |     ^~~~
main.c:2:1: error: expected ',' or ';' before 'total'
    2 | total = 0
      | ^~~~~
main.c:4:2: error: too many decimal points in number
    4 | (1..k).each do |h|
      |  ^~~~
main.c:5:4: error: too many decimal points in number
    5 |   (1..k).each do |i|
      |    ^~~~
main.c:7:6: error: too many decimal points in number
    7 |     (1..k).each do |j|
      |      ^~~~
Language: C++

#include <bits/stdc++.h>

#define forn(i, n) for (int i = 0; i < int(n); ++i)
#define for1(i, n) for (int i = 1; i <= int(n); ++i)
#define ms(a, x) memset(a, x, sizeof(a))
#define F first
#define S second
#define all(x) (x).begin(),(x).end()

using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int INF = 0x3f3f3f3f;
mt19937 gen(random_device{}());
template<typename... Args> void write(Args... args) { ((cout << args << " "), ...); cout<<endl;}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin>>n;
    ll sum=0;
    for1(i,n) for1(j,n) for1(k,n) sum+=gcd(gcd(i,j),k);
    cout<<sum;
    return 0;
}

#include <bits/stdc++.h>

#define forn(i, n) for (int i = 0; i < int(n); ++i)
#define for1(i, n) for (int i = 1; i <= int(n); ++i)
#define ms(a, x) memset(a, x, sizeof(a))
#define F first
#define S second
#define all(x) (x).begin(),(x).end()

using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int INF = 0x3f3f3f3f;
mt19937 gen(random_device{}());
template<typename... Args> void write(Args... args) { ((cout << args << " "), ...); cout<<endl;}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin>>n;
    ll sum=0;
    for1(i,n) for1(j,n) for1(k,n) sum+=gcd(gcd(i,j),k);
    cout<<sum;
    return 0;
}



Compiler output:
a.cc:40:11: error: redefinition of 'const int INF'
   40 | const int INF = 0x3f3f3f3f;
      |           ^~~
a.cc:13:11: note: 'const int INF' previously defined here
   13 | const int INF = 0x3f3f3f3f;
      |           ^~~
a.cc:41:9: error: redefinition of 'std::mt19937 gen'
   41 | mt19937 gen(random_device{}());
      |         ^~~
a.cc:14:9: note: 'std::mt19937 gen' previously declared here
   14 | mt19937 gen(random_device{}());
      |         ^~~
a.cc:42:33: error: redefinition of 'template<class ... Args> void write(Args ...)'
   42 | template<typename... Args> void write(Args... args) { ((cout << args << " "), ...); cout<<endl;}
      |                                 ^~~~~
a.cc:15:33: note: 'template<class ... Args> void write(Args ...)' previously declared here
   15 | template<typename... Args> void write(Args... args) { ((cout << args << " "), ...); cout<<endl;}
      |                                 ^~~~~
a.cc:44:5: error: redefinition of 'int main()'
   44 | int main() {
      |     ^~~~
a.cc:17:5: note: 'int main()' previously defined here
   17 | int main() {
      |     ^~~~
Language: C

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

ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }

int main()
{
  int K;
  long int sum = 0;
  cin >> K;
  for (int i = 1; i <= K; i++)
  {
    for (int j = 1; j <= K; j++)
    {
      for (int k = 1; k <= K; k++)
      {
        sum += gcd(gcd(i, j), k);
      }
    }
  }
  cout << sum << 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<iostream>
#include<cmath>
#include<stack>
#include<vector>
#include<cstring>
#include<algorithm>
#include<set>
#include<queue>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <complex>
#include <sstream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <cassert>
using namespace std;
typedef long long ll;
const ll inf =1e17;
#define scn(a) scanf("%d",&a)
#define scd(a) scanf("%lf",&a)
#define scl(a) scanf("%lld",&a)
#define ptf(a) printf("%d\n",&a)
#define mes(a,b) memset(a,b,sizeof(a))
#define fon(s,n) for(int i=s;i<=n;i++)
#define range(i,a,b) for(int i=a;i<=b;++i)
#define rerange(i,a,b) for(int i=a;i>=b;--i)
//#define N 100010
const int S=20;
int gcd(int a,int b) { return b>0 ? gcd(b,a%b):a;}
ll lcm(ll a,ll b){return a*b/gcd(a,b);}
ll q_pow(ll a,ll b,ll mod)
{
	ll ans=1,res=a;
	while(b){
		if(b&1) ans=ans*res%mod;
		res=res*res%mod;
		b>>=1;
	}
	return ans%mod;
}


int main(){
	int n,temp;
    ll sum=0;
	scn(n);
	for(int i=1;i<=n;i++)
		for(int j=1;j<=n;j++)
			for(int k=1;k<=n;k++)
				temp=gcd(i,j),d=gcd(k,temp),sum+=temp;
	printf("%lld\n",sum);
	return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:63:47: error: 'd' was not declared in this scope
   63 |                                 temp=gcd(i,j),d=gcd(k,temp),sum+=temp;
      |                                               ^
Language: C++

#include<iostream>
#include<cmath>
#include<stack>
#include<vector>
#include<cstring>
#include<algorithm>
#include<set>
#include<queue>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <complex>
#include <sstream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <cassert>
using namespace std;
typedef long long ll;
const ll inf =1e17;
#define scn(a) scanf("%d",&a)
#define scd(a) scanf("%lf",&a)
#define scl(a) scanf("%lld",&a)
#define ptf(a) printf("%d\n",&a)
#define mes(a,b) memset(a,b,sizeof(a))
#define fon(s,n) for(int i=s;i<=n;i++)
#define range(i,a,b) for(int i=a;i<=b;++i)
#define rerange(i,a,b) for(int i=a;i>=b;--i)
//#define N 100010
const int S=20;
ll gcd(ll a,ll b) { return b>0 ? gcd(b,a%b):a;}
ll lcm(ll a,ll b){return a*b/gcd(a,b);}
ll q_pow(ll a,ll b,ll mod)
{
	ll ans=1,res=a;
	while(b){
		if(b&1) ans=ans*res%mod;
		res=res*res%mod;
		b>>=1;
	}
	return ans%mod;
}


int main(){
	int n,temp;
    ll sum=0;
	scn(n);
	for(int i=1;i<=n;i++)
		for(int j=1;j<=n;j++)
			for(int k=1;k<=n;k++)
				temp=gcd(i,j),d=gcd(k,temp),sum+=temp;
	printf("%lld\n",sum);
	return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:63:47: error: 'd' was not declared in this scope
   63 |                                 temp=gcd(i,j),d=gcd(k,temp),sum+=temp;
      |                                               ^
Language: C

#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<cmath>

using namespace std;

long long int gcd(long long int k,int i,int j,int l)
{
    long long int a, b, c;

                a = i;
                b = j;
                while (1)
                {

                    if (a == 0)
                    {
                        c = l;
                        while (1)
                        {

                            if (b == 0)
                            {
                                return  c;
                                
                            }
                            else if (c == 0)
                            {
                                return b;
                               
                            }
                            (b >= c) ? b %= c : c %= b;
                        }
                    }
                    else if (b == 0)
                    {
                        c = l;
                        while (1)
                        {

                            if (a == 0)
                            {
                                return c;
                               
                            }
                            else if (c == 0)
                            {
                                return a;
                               
                            }
                            (a >= c) ? a %= c : c %= a;
                        }
                    }
                    (a >= b) ? a %= b : b %= a;
                }
 }

int main()
{

    long long int k, result = 0;
    cin >> k;

    for (int i = 1; i < (k+1);i++)
    {
        for (int j = 1; j < (k+1); j++)
        {
            for (int l = 1; l < (k+1); l++)
            {
                result += gcd(k,i,j,l);
            }
        }
    }

        cout << result;
}


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>
using namespace std;
int main(){
  long int sum=0,k;
  cin >> k;
  int i,j,m;
  for(i=1;i<=k;i++)
    for(j=1;j<=k;j++)
      for(m=1;m<=k;m++)
        sum+=__gcd(__gcd(i,j),k);
  cout << sum << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:19: error: no matching function for call to '__gcd(int, long int&)'
   10 |         sum+=__gcd(__gcd(i,j),k);
      |              ~~~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algo.h:1137:5: note: candidate: 'template<class _EuclideanRingElement> _EuclideanRingElement std::__gcd(_EuclideanRingElement, _EuclideanRingElement)'
 1137 |     __gcd(_EuclideanRingElement __m, _EuclideanRingElement __n)
      |     ^~~~~
/usr/include/c++/14/bits/stl_algo.h:1137:5: note:   template argument deduction/substitution failed:
a.cc:10:19: note:   deduced conflicting types for parameter '_EuclideanRingElement' ('int' and 'long int')
   10 |         sum+=__gcd(__gcd(i,j),k);
      |              ~~~~~^~~~~~~~~~~~~~
Language: C++

#include<iostream>
using namespace std;

int gcd(int p, int q) {
	if (p % q == 0)	return q;
	return gcd(q, p % q);
}


int main() {
	int K;
	int ans = 0;
	scanf_s("%d", &K);
	for (int i = 1; i <= K; i++)
		for (int j = 1; j <= K; j++)
			for (int h = 1; h <= K; h++)
				ans += gcd(gcd(i, j), h);
	cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
   13 |         scanf_s("%d", &K);
      |         ^~~~~~~
      |         scanf
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long ans=0;
int main(){
    int k;
    cin>>k;
    for(int i=1;i<=k;i++)
        for(int j=1;j<=k;j++)
            for(int l=1;l<=k;l++)
                ans++__gcd(l,__gcd(i,j));
    cout<<ans;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:22: error: expected ';' before '__gcd'
   10 |                 ans++__gcd(l,__gcd(i,j));
      |                      ^~~~~
      |                      ;
Language: C++

#include<bits/stdc++.h>
using namepace std;
long long ans=0;
int main(){
    int k;
    cin>>k;
    for(int i=1;i<=k;i++)
        for(int j=1;j<=k;j++)
            for(int l=1;l<=k;l++)
                ans++__gcd(l,__gcd(i,j));
    cout<<ans;
    return 0;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namepace'
    2 | using namepace std;
      |       ^~~~~~~~
a.cc: In function 'int main()':
a.cc:6:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |     cin>>k;
      |     ^~~
      |     std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:10:22: error: expected ';' before '__gcd'
   10 |                 ans++__gcd(l,__gcd(i,j));
      |                      ^~~~~
      |                      ;
a.cc:11:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   11 |     cout<<ans;
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: Java

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int result = 0;
        
        for(int i = 1; i <= n; i++) {
            for(int j = 1; j <= n; j++) {
                for(int k = 1; k <= n; k++) {
                    result += euclid(j,euclid(k,i));
                }
            }
        }
        System.out.println(result);
    }

    private static int euclid(int m, int n) {
        int tmp;

        if(m < n) {
            tmp = m;
            m = n;
            n = tmp;
        }
        while(n > 0){
            tmp = m % n;
            m = n;
            n = tmp;
        }
        return m;
    }
}


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

#include<bits/stdc++.h>
using namespace std;
#define ALL(v) (v).begin(),(v).end()
#define REP(i,p,n) for(int i=p;i<(int)(n);++i)
#define rep(i,n) REP(i,0,n)
#define SZ(x) ((int)(x).size())
#define debug(x) cerr << #x << ": " << x << '\n'

typedef long long int Int;
typedef pair<int,int> P;
using ll = long long;
using VI = vector<int>;
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; }
const long long INF = 1LL<<60;
int gcd(Int a, Int b) {
 return b != 0 ? gcd(b, a % b) : a;
}//gcd

int main(){
    int k;cin >> k;
    int Ans = 0;
    for(int i=1;i<=k;i++){
        for(int j=1;j<=k;j++){
            for(int t=1;t<=k;t++){
                int tmp = gcd(i,j);
                int ans = gcd(tmp,t);
                Ans+=ans;
            }
        }
    }
    cout << Ans << endl;
}

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

#include<stdio.h>

int main(void){
  int K; scanf("%d",&K);
  long int ans = 0;

  for(int a = 1;a <= K;a++){
    for(int b = 1;b <= K;b++){
      for(int c = 1;c <= K;c++){
        int a_copy = a,b_copy = b;

        //a,b
        int g_ab,r,tmp;
        if(a_copy < b_copy){
          tmp = a_copy;
          a_copy = b_copy;
          b_copy = tmp;
        }
        r = a_copy % b_copy;
        while(r > 0){
          a_copy = b_copy;
          b_copy = r;
          r = a_copy % b_copy;
        }
        g_ab = b_copy;

        //b,c
        int b_copy = b,c_copy = c;
        if(b_copy < c_copy){
          tmp = b_copy;
          b_copy = c_copy;
          c_copy = tmp;
        }
        r = b_copy % c_copy;
        while(r > 0){
          b_copy = c_copy;
          c_copy = r;
          r = b_copy % c_copy;
        }
        g_bc = c_copy;

        //g_ab,g_bc
        if(g_ab < g_bc){
          tmp = g_ab;
          g_ab = g_bc;
          g_bc = tmp;
        }
        r = g_ab % g_bc;
        while(r > 0){
          g_ab = g_bc;
          g_bc = r;
          r = g_ab % g_bc;
        }
        g_abc = g_bc;
        ans += g_abc;
      }
    }
  }
  printf("%d",ans);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:28:13: error: redefinition of 'b_copy'
   28 |         int b_copy = b,c_copy = c;
      |             ^~~~~~
main.c:10:24: note: previous definition of 'b_copy' with type 'int'
   10 |         int a_copy = a,b_copy = b;
      |                        ^~~~~~
main.c:40:9: error: 'g_bc' undeclared (first use in this function)
   40 |         g_bc = c_copy;
      |         ^~~~
main.c:40:9: note: each undeclared identifier is reported only once for each function it appears in
main.c:54:9: error: 'g_abc' undeclared (first use in this function); did you mean 'g_ab'?
   54 |         g_abc = g_bc;
      |         ^~~~~
      |         g_ab
Language: C++

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

int main() {
  int K = 0, S = 0;
  cin >> K;
    for (int a = 1; a <= K; a++) {
      for (int b = 1; b <= K; b++) {
        for (int c = 1; c <= K; c++) {
          for (int i = K; i == 1; i--) {
            S += gcd(gcd(a,b), c)
            }
          }
        }
      }
    }
  cout << S << endl;
}
    


Compiler output:
a.cc: In function 'int main()':
a.cc:11:34: error: expected ';' before '}' token
   11 |             S += gcd(gcd(a,b), c)
      |                                  ^
      |                                  ;
   12 |             }
      |             ~                     
a.cc: At global scope:
a.cc:17:3: error: 'cout' does not name a type
   17 |   cout << S << endl;
      |   ^~~~
a.cc:18:1: error: expected declaration before '}' token
   18 | }
      | ^
Language: C++

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

int main() {
  int K = 0, S = 0;
  cin >> K;
    for (int a = 1; a <= K; a++) {
      for (int b = 1; b <= K; b++) {
        for (int c = 1; c <= K; c++) {
          S += gcd(a, b, c);
        }
      }
    }
  cout << S << endl;
}
    


Compiler output:
a.cc: In function 'int main()':
a.cc:10:19: error: no matching function for call to 'gcd(int&, int&, int&)'
   10 |           S += gcd(a, b, c);
      |                ~~~^~~~~~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:58,
                 from a.cc:1:
/usr/include/c++/14/numeric:173:5: note: candidate: 'template<class _Mn, class _Nn> constexpr std::common_type_t<_Mn, _Nn> std::gcd(_Mn, _Nn)'
  173 |     gcd(_Mn __m, _Nn __n) noexcept
      |     ^~~
/usr/include/c++/14/numeric:173:5: note:   candidate expects 2 arguments, 3 provided
Language: C++

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

int main() {
  int K = 0, S = 0;
  cin >> K
    for (int a = 1; a <= K; a++) {
      for (int b = 1; b <= K; b++) {
        for (int c = 1; c <= K; c++) {
          S += gcd(a, b, c);
        }
      }
    }
  cout << S << endl;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:6:11: error: expected ';' before 'for'
    6 |   cin >> K
      |           ^
      |           ;
    7 |     for (int a = 1; a <= K; a++) {
      |     ~~~    
a.cc:7:21: error: 'a' was not declared in this scope
    7 |     for (int a = 1; a <= K; a++) {
      |                     ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
//最大公約数を求めるプログラム
int answer(int a, int b, int c) {
  int A,x;
  x = 1;
  A = min(a,min(b,c));
  for (int i = 1; i < A + 1; i++) {
    if (a % i = 0 && b % i = 0 && c % i = 0) {
      x = i;
    }
  }
  return x;
}

int main() {
  int K, y;
  y = 0;
  cin >> K;
  for (int i = 1; i < K + 1; i++) {
    for (int j = 1; j < K + 1; j++) {
      for (int l = 1; l< K + 1; l++){
        y += answer(i, j, l);
      }
    }
  }
  cout << y << endl;
}

        
    
    


Compiler output:
a.cc: In function 'int answer(int, int, int)':
a.cc:9:32: error: lvalue required as left operand of assignment
    9 |     if (a % i = 0 && b % i = 0 && c % i = 0) {
      |                              ~~^~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
//最大公約数を求めるプログラム
int answer(int a, int b, int c) {
  int A,x;
  x = 1;
  A = min(a,min(b,c));
  for (int i = 1; i < A + 1; i++) {
    if (a % i = 0 & b % i = 0 & c % i = 0) {
      x = i;
    }
  }
  return x;
}

int main() {
  int K, y;
  y = 0;
  cin >> K;
  for (int i = 1; i < K + 1; i++) {
    for (int j = 1; j < K + 1; j++) {
      for (int l = 1; l< K + 1; l++){
        y += answer(i, j, l);
      }
    }
  }
  cout << y << endl;
}

        
    
    


Compiler output:
a.cc: In function 'int answer(int, int, int)':
a.cc:9:31: error: lvalue required as left operand of assignment
    9 |     if (a % i = 0 & b % i = 0 & c % i = 0) {
      |                             ~~^~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
//最大公約数を求めるプログラム
int answer(int a, int b, int c) {
  int A,x;
  x = 1;
  A = min(a,min(b,c));
  for (int i = 1; i < A + 1; i++) {
    if (a % i = 0 & b % i = 0 c % i = 0) {
      x = i;
    }
  }
  return x;
}

int main() {
  int K, y;
  y = 0;
  cin >> K;
  for (int i = 1; i < K + 1; i++) {
    for (int j = 1; j < K + 1; j++) {
      for (int l = 1; l< K + 1; l++){
        y += answer(i, j, l);
      }
    }
  }
  cout << y << endl;
}

        
    
    


Compiler output:
a.cc: In function 'int answer(int, int, int)':
a.cc:9:19: error: lvalue required as left operand of assignment
    9 |     if (a % i = 0 & b % i = 0 c % i = 0) {
      |                 ~~^~~~~~~
a.cc:9:30: error: expected ')' before 'c'
    9 |     if (a % i = 0 & b % i = 0 c % i = 0) {
      |        ~                     ^~
      |                              )