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

#include <iostream>

int main(){
  int A,B;
  cin >> A >> B;
  cout << A*B << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin >> A >> B;
      |   ^~~
      |   std::cin
In file included 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:6:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |   cout << A*B << endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:6:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 |   cout << A*B << endl;
      |                  ^~~~
      |                  std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>
using namespace std;

int main() {

    int A,B;
    cin >> A;
    cin >> B;
    
    cout << A*B "\n";

}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:16: error: expected ';' before string constant
   10 |     cout << A*B "\n";
      |                ^~~~~
      |                ;
Language: C++

#include <iostream>
using namespace std;

int main() {

    int A,B;
    cout << A*B "\n";
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:16: error: expected ';' before string constant
    7 |     cout << A*B "\n";
      |                ^~~~~
      |                ;
Language: C

#include<stdio.h>
int main(void){
int a,b;
scanf("%d %d"&a,&b);
  printf("%d",a*b);
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:4:14: error: invalid operands to binary & (have 'char *' and 'int')
    4 | scanf("%d %d"&a,&b);
      |       ~~~~~~~^
      |       |
      |       char *
Language: C

#include<stdio.h>
int msin(void){
int a,b;
scanf("%d %d"&a,&b);
  printf("%d",a*b);
  return 0;
}


Compiler output:
main.c: In function 'msin':
main.c:4:14: error: invalid operands to binary & (have 'char *' and 'int')
    4 | scanf("%d %d"&a,&b);
      |       ~~~~~~~^
      |       |
      |       char *
Language: C

#include<stdio.h>
int main(void){
int a,b;
scanf("%d %d"&a,&b);
  printf("%d",a*b);
}


Compiler output:
main.c: In function 'main':
main.c:4:14: error: invalid operands to binary & (have 'char *' and 'int')
    4 | scanf("%d %d"&a,&b);
      |       ~~~~~~~^
      |       |
      |       char *
Language: C

#include<stdio.h>
int msin(void){
int a,b;
scanf("%d %d"&a,&b);
  printf("%d",a*b);
}


Compiler output:
main.c: In function 'msin':
main.c:4:14: error: invalid operands to binary & (have 'char *' and 'int')
    4 | scanf("%d %d"&a,&b);
      |       ~~~~~~~^
      |       |
      |       char *
Language: C

#include<stdio.h>
int msin(void){
int a,b;
scanf("%d %d"a,b);
  printf("%d",a*b);
}

Compiler output:
main.c: In function 'msin':
main.c:4:14: error: expected ')' before 'a'
    4 | scanf("%d %d"a,b);
      |      ~       ^
      |              )
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n;
  cin >> n;
  vector<long long int> vec(n);
  int f1 = 0;
  //0があるかどうかのフラグ
  int f2 = 0;
  //10^{18}を超えたかどうかのフラグ
  for (int i = 0; i < n; i++){
    long long int a;
    cin >> a;
    if (a == 0){
      f1++;
      cout << 0 << endl;
      break;
    }else{
      vec.at(i) = a;
    }
  }
  if (f1 == 0){
    //0の項がなかった場合以降の処理を行います
    sort(vec.begin(),vec.end());
    reverse(vec.begin(),vec.end());
    //sortで昇順に並び替え、reverseで降順に並び替えています
    long long int ans = 1;
    for (int i = 0; i < n; i++){
      ans = ans*vec.at(i);
      if (ans > Math.pow(10,18)){
        f2++;
        cout << -1 << endl;
        break;
      }
    }
    if (f2 == 0){
      cout << ans << endl;
    }
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:17: error: 'Math' was not declared in this scope
   30 |       if (ans > Math.pow(10,18)){
      |                 ^~~~
Language: C++

#include<stdc++.h>
using namespace std;
int main(){
  int x,y;
  cin >> x >> y;
  cout << x * y << endl;
}

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

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ld long double
#define pb push_back
#define mp make_pair
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define LOL cout<<'\n';
#define MOD 1000000007
#define sz(x) ((int)x.size())
#define INF LONG_LONG_MAX
#define NINF LONG_LONG_MIN
#define deb(x) cout << "[" << (#x) << "=" << x << "]" << '\n';
#define deb2(x,y) cout << "[" << (#x) << "=" << x << "] [" << (#y) << "=" << y << "]" << '\n';
#define deb3(x,y,z) cout << "[" << (#x) << "=" << x << "] [" << (#y) << "=" << y << "] [" << (#z) << "=" << z << "]" << '\n';

const int N=1e5+7;
int n,m,k,q,l,r,x,y,z;
int a[N],b[N],c[N];
string s,t;
int ans=0,cnt=0;

void solve(){
	cin>>n>>m;
	cout<<n*m;LOL
}

signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0); cout.tie(0);
  int _=1;>>_;
  for(int i=1 ; i<=_ ; i++) solve();
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:11: error: expected primary-expression before '>>' token
   33 |   int _=1;>>_;
      |           ^~
Language: C++

int a;
int b;
cin >> a;
cin >> b;
cout << a * b;

Compiler output:
a.cc:3:1: error: 'cin' does not name a type
    3 | cin >> a;
      | ^~~
a.cc:4:1: error: 'cin' does not name a type
    4 | cin >> b;
      | ^~~
a.cc:5:1: error: 'cout' does not name a type
    5 | cout << a * b;
      | ^~~~
Language: C++

#inlude <bits/stdc++.h>
using namespace std;
int main() {
    int A,B;
    cin >> A >> B;
    cout << A*B << endl;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #inlude; did you mean #include?
    1 | #inlude <bits/stdc++.h>
      |  ^~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:5:5: error: 'cin' was not declared in this scope
    5 |     cin >> A >> B;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #inlude <bits/stdc++.h>
a.cc:6:5: error: 'cout' was not declared in this scope
    6 |     cout << A*B << endl;
      |     ^~~~
a.cc:6:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:6:20: error: 'endl' was not declared in this scope
    6 |     cout << A*B << endl;
      |                    ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #inlude <bits/stdc++.h>
Language: C

#include<stdio.h>
int main()
  {
  int a,b;
  scanf("%d %d",&a,&b);
  printf("%d",a*b);
  return 0;
. }

Compiler output:
main.c: In function 'main':
main.c:8:1: error: expected expression before '.' token
    8 | . }
      | ^
Language: C++

#include <iosstream>
#include <string>
 
int main(){
  int A;
  int B;
  //std::cin >> A;
  //std::cin >> B;
  std::cin >> A >> B;
  
  std::cout << A*B;
}

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

#include <iosstream>
#include <string>
 
int main(){
  int A;
  int B;
  std::cin >> A;
  std::cin >> B;
  
  std::cout << A*B;
}

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

#include <iosteram>
#include <string>

int main(){
  int A;
  int B;
  std::cin >> A;
  std::cin >> B;
  
  std::cout << A*B;
}

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

#include <iostream>

int main()
{
    int a,s;
    cin >>a >> s;

    std::cout << a * s << std::endl;
}


Compiler output:
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 >>a >> s;
      |     ^~~
      |     std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
Language: C++

 #include<iostream>
using namespace std;
int main(){
 int a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,1,2,3,4,5,6,7,8,9;
  cin >> a;
  no title
    hentai ito yokuto}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:58: error: expected unqualified-id before numeric constant
    4 |  int a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,1,2,3,4,5,6,7,8,9;
      |                                                          ^
a.cc:6:3: error: 'no' was not declared in this scope; did you mean 'o'?
    6 |   no title
      |   ^~
      |   o
Language: C++

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

int main() {
  cin >> a >> b;
  cout << a * b << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:10: error: 'a' was not declared in this scope
    5 |   cin >> a >> b;
      |          ^
a.cc:5:15: error: 'b' was not declared in this scope
    5 |   cin >> a >> b;
      |               ^
Language: C++

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

int main() {
  cin << a << b;
  cout << a * b << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:10: error: 'a' was not declared in this scope
    5 |   cin << a << b;
      |          ^
a.cc:5:15: error: 'b' was not declared in this scope
    5 |   cin << a << b;
      |               ^
Language: C++

#include<iostream>
#include<bits/stdc++.h>
int main()
{int a, b;
 cin>>ab>>b;
 cout<<a*b<<endl;
 return 0;}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:2: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |  cin>>ab>>b;
      |  ^~~
      |  std::cin
In file included 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:5:7: error: 'ab' was not declared in this scope; did you mean 'b'?
    5 |  cin>>ab>>b;
      |       ^~
      |       b
a.cc:6:2: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |  cout<<a*b<<endl;
      |  ^~~~
      |  std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:6:13: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 |  cout<<a*b<<endl;
      |             ^~~~
      |             std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a,b;cin>>a>>b;
    cout<<a*b<<endl;
    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 IOS ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define loop(i,n)for(i=0;i<n;i++)
#define INF 1000000000
#define mp make_pair
#define pb push_back
using ll = long long int;
typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<int> vi;
#define f first
#define s second
const int MX = 100002;
pii tree[MX*4];
int ar[MX];

int main()
{
    int a,b;cin>>a>>b;cout<<a*b<<endl;
    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;
using int64 = long long;

int main(){
  int a, b;
  cin >> a >> b;
  cout << a * b << endl;
}　

Compiler output:
a.cc:9:2: error: extended character 　 is not valid in an identifier
    9 | }　
      |  ^
a.cc:9:2: error: '\U00003000' does not name a type
    9 | }　
      |  ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n;
  int s=0;
  int t=1;
  cin>>n;
vector<int> vec(n);
  for(int i=0;i<n;i++){
    cin>>vec.at(i);
    t*=vec.at(i);
    s+=　float log10 (float vec(i));}
  if(s>18){cout<<-1<<endl;}
  else{cout<<t<<endl;}
}


Compiler output:
a.cc:12:8: error: extended character 　 is not valid in an identifier
   12 |     s+=　float log10 (float vec(i));}
      |        ^
a.cc: In function 'int main()':
a.cc:12:8: error: '\U00003000float' was not declared in this scope; did you mean 'float'?
   12 |     s+=　float log10 (float vec(i));}
      |        ^~~~~~~
      |        float
Language: C++

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

int A, B, C;

int main() {
    cin>>A>>B;
    C = A*B;
    cout<<C<<endl;
}


Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <bits/stdc++.h>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:7:5: error: 'cin' was not declared in this scope
    7 |     cin>>A>>B;
      |     ^~~
a.cc:9:5: error: 'cout' was not declared in this scope
    9 |     cout<<C<<endl;
      |     ^~~~
a.cc:9:14: error: 'endl' was not declared in this scope
    9 |     cout<<C<<endl;
      |              ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(void){
 int a,b;
  
  cin>>a>>b;
  
  cout<<a*b<<endl;
  
  return 0
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:11: error: expected ';' before '}' token
   10 |   return 0
      |           ^
      |           ;
   11 | }
      | ~
Language: C++

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

long long a,b,c;
long long count=0;
cin>>a>>b;
cout<<a*b<<endl
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:16: error: expected ';' before 'return'
    9 | cout<<a*b<<endl
      |                ^
      |                ;
   10 | return 0;
      | ~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
#ifndef RAHUL
    freopen("input.txt","r",stdin);
    freopen("output.txt","w",stdout);
#endif
long long a,b,c;
long long count=0;
cin>>a>>b;
cout<<a*b<<endl
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:16: error: expected ';' before 'return'
   12 | cout<<a*b<<endl
      |                ^
      |                ;
   13 | return 0;
      | ~~~~~~
Language: C++

#include<iostream> 

int main() {
  int a,b;
  cin>>a>>b;
  cout<<a*b;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin>>a>>b;
      |   ^~~
      |   std::cin
In file included 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:6:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |   cout<<a*b;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

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

int main()
{
  int a,b; cin>>a>>b;
  cout<<a*b<<endl;
}

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

import java.io.*;
import java.util.*;

public class A{
    static class FastReader 
    { 
        BufferedReader br; 
        StringTokenizer st; 
        public FastReader(){br = new BufferedReader(new InputStreamReader(System.in));} 
        String next(){while (st == null || !st.hasMoreElements()){try{st = new StringTokenizer(br.readLine());}catch (IOException  e){e.printStackTrace();}}return st.nextToken();} 
        int nextInt(){return Integer.parseInt(next());} 
        long nextLong(){return Long.parseLong(next());} 
        double nextDouble(){return Double.parseDouble(next());} 
        int[] readArray(int n){int[] a=new int[n];for (int i=0; i<n; i++) a[i]=nextInt();return a;}
        long[] readLongArray(int n){long[] a=new long[n];for (int i=0; i<n; i++) a[i]=nextLong();return a;}
        String nextLine(){String str = "";try{str = br.readLine();}catch (IOException e){e.printStackTrace();}return str;} 
    }
    static int getgcd(int n1,int n2){
        while(n1 != n2){
            if(n1 > n2) n1 -= n2;
            else n2 -= n1;
        }
        return n1;
    }
    static boolean isSorted(int[] arr, int n){
        for(int i=1;i<n;i++){
            if(arr[i]<arr[i-1]) return false;
        }
        return true;
    }
    static boolean isPrime(long n){
        if(n==2) return true;
        else if(n%2==0) return false;
        for(int i=3;i<=n/2;i+=2){
            if(n%i==0) return false;
        }
        return true;
    }
    static void printArray(int[] arr){
        for(int x:arr){
            System.out.print(x+" ");
        }
        System.out.println();
    }
    public static void main(String[] args) throws NumberFormatException, IOException {
        FastReader s=new FastReader();
        //int t = s.nextInt();
        int a,b;
        boolean found;
        //while(t>0){
            a=s.nextInt();b=s.nextInt();
            System.out.println(a*b);
            //t--;
        //}
    }
}

Compiler output:
Main.java:4: error: class A is public, should be declared in a file named A.java
public class A{
       ^
1 error
Language: C++

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

typedef unsigned long long ll;
#define mod 1000000007
#define all(x) (x).begin(),(x).end()


void solve(){
  ll aLL,bLL;
  cin>>a>>b;
  cout<<a*bLL;
}

int main()
{
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  //int t;
  //cin>>t;
  //while(t--){
      solve();
  //}
  return 0;
}

Compiler output:
a.cc: In function 'void solve()':
a.cc:11:8: error: 'a' was not declared in this scope
   11 |   cin>>a>>b;
      |        ^
a.cc:11:11: error: 'b' was not declared in this scope
   11 |   cin>>a>>b;
      |           ^
Language: C

#include <stdio.h>
int main(void){
  	int a;
  	int b;
	printf("数値A: \n");
  	scanf("%d",&a;);
 	printf("数値B: \n");
  	scanf("%d",&b;);
  printf("A*bは%dです。",a*b);
  
  
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:22: error: expected ')' before ';' token
    6 |         scanf("%d",&a;);
      |              ~       ^
      |                      )
main.c:8:22: error: expected ')' before ';' token
    8 |         scanf("%d",&b;);
      |              ~       ^
      |                      )
Language: Java

import java.io.BufferedReader;
import java.io.*;
import java.util.*;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Collections;
import java.util.Arrays;

public class Main {
	public static void main(final String[] args){
    
    final Scanner sc = new Scanner(System.in);
    final int a = sc.nextInt();
    //final List<Integer> list = new ArrayList<>();
    int b = sc.nextInt();

    System.out.pritntln(a * b);
    




    

    



    
  

    


    


    

    
    
    



    





}
}

Compiler output:
Main.java:18: error: cannot find symbol
    System.out.pritntln(a * b);
              ^
  symbol:   method pritntln(int)
  location: variable out of type PrintStream
1 error
Language: Java

import java.util.*;
import java.math.BigInteger;

public class Main {
  
  public static void main(String[] args) {
    
    Scanner scan = new Scanner(System.in);
    int N = scan.nextInt();
    BigInteger product = new BigInteger.ONE;
    BigInteger limit = new BigInteger("
    
    for (int i = 1, i <= N; i++) {
      int A_i = scan.nextInt();
      product = product.multiply(BigInteger.valueof(A_i));
      
      return;
    }
    
    if (product.compareTo(limit) > 0) {
      System.out.println(-1);
    }
	
	System.out.println(product);
                                      }
                                      }

Compiler output:
Main.java:10: error: '(' or '[' expected
    BigInteger product = new BigInteger.ONE;
                                           ^
Main.java:11: error: unclosed string literal
    BigInteger limit = new BigInteger("
                                      ^
Main.java:13: error: ';' expected
    for (int i = 1, i <= N; i++) {
                     ^
Main.java:13: error: illegal start of expression
    for (int i = 1, i <= N; i++) {
                      ^
4 errors
Language: Java

import java.util.*;
 
public class Main {
 
	public static void main(String[] arguments) {
    
    	Scanner scan = new Scanner(System.in);
       	int N = scan.nextInt();
        
        double product = 1;
      	double limit = Math.pow(10,18);
        
        while (i <= N) {
        	int A_i = scan.nextInt();
            
            product = product * A_i;
        }
        
        if (product < limit) {
        	System.out.println(product);
        }
        
        else {
        	System.out.println("-1");
		}
    }
}

Compiler output:
Main.java:13: error: cannot find symbol
        while (i <= N) {
               ^
  symbol:   variable i
  location: class Main
1 error
Language: Java

import java.util.*;
 
public class Main {
 
	public static void main(String[] arguments) {
    
    	Scanner scan = new Scanner(System.in);
       	int N = scan.nextInt();
        
        int product = 1;
        
        for (int i = 1; i <= N; i++) {
        	int A_i = scan.nextInt();
            
            product = product * A_i;
        }
        
        if (product < 10^18) {
        	System.out.println(product);
        }
        
        else {
        	System.out.println("-1");
		}
    }
}

Compiler output:
Main.java:18: error: bad operand types for binary operator '^'
        if (product < 10^18) {
                        ^
  first type:  boolean
  second type: int
1 error
Language: C++

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

int main() {
 intA , B;
  cin >> A >> B;
  cout << A*B << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:2: error: 'intA' was not declared in this scope; did you mean 'int'?
    5 |  intA , B;
      |  ^~~~
      |  int
a.cc:5:9: error: 'B' was not declared in this scope
    5 |  intA , B;
      |         ^
a.cc:6:10: error: 'A' was not declared in this scope
    6 |   cin >> A >> B;
      |          ^
Language: C++

#include <iostream>
using namespace std;

int mian(){
  int a, b;
  cin >> a >> b;
  return a*b;
}


Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#incluse <iostream>
using namespace std;

int mian(){
  int a, b;
  cin >> a >> b;
  return a*b;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incluse; did you mean #include?
    1 | #incluse <iostream>
      |  ^~~~~~~
      |  include
a.cc: In function 'int mian()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin >> a >> b;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #incluse <iostream>
Language: Java

import java.util.*;

public class Main {
  public static void main(String[] arguments) {
    
    Scanner scan = new Scanner(system.in);
    int n = scan.nextInt();
    int m = scan.nextInt();
    
    System.out.println(n + m);
  }
}

Compiler output:
Main.java:6: error: cannot find symbol
    Scanner scan = new Scanner(system.in);
                               ^
  symbol:   variable system
  location: class Main
1 error
Language: C++

#include<iostream>
int main()
{
  int A,B;
  cin>>A>>B;
  cout<<A+B;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin>>A>>B;
      |   ^~~
      |   std::cin
In file included 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:6:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |   cout<<A+B;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include <bits/stdc++.h>
#define REP(i, n) for(int i = 0; i < n; i++)
#define REPR(i, n) for(int i = n; i >= 0; i--)
#define FOR(i, m, n) for(int i = m; i < n; i++)
#define INF 2e9
#define ALL(v) v.begin(), v.end()
using namespace std;
typedef long long ll;
int main()
{
  int A,B;
  cin >> A >> B;
  cout A * B;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:7: error: expected ';' before 'A'
   13 |   cout A * B;
      |       ^~
      |       ;
Language: C

#include<stdio.h>
int main(void)
{
    int A;
    int B;

    printf("1から１００の数字を入力してください ￥n");
    scanf("%d", A);
    scanf("%d", B);
    if (1 <= A,B <= 100 ){
        printf("%d", A * B );
    }
    else{
        printf("範囲外です￥n" );
    }


Compiler output:
main.c: In function 'main':
main.c:15:5: error: expected declaration or statement at end of input
   15 |     }
      |     ^
Language: C

#include<studio.h>
#include<stdio.h>
int main(void)
{
    int A;
    int B;

    printf("1から１００の数字を入力してください ￥n");
    scanf("%d", A);
    scanf("%d", B);
    if (1 <= A,B <= 100 ){
        printf("%d", A * B );
    }
    else{
        printf("範囲外です￥n" );
    }


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

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

int main() {
  int A, B

  cin >> A >> B
  if (A<=100 && A>=1 && B<=100 && B>=1){ 
  cout << A*B << endl;
  {
{


Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: expected initializer before 'cin'
    7 |   cin >> A >> B
      |   ^~~
a.cc:11:2: error: expected '}' at end of input
   11 | {
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include<iostream>
#include<math.h>
#include<bits/stdc++.h>
#include<queue>
#include<cstdio>
#define rep(i,n) for (int i=0;i<(n);++i)
using ll = long long;
using namespace std;
using P = pair<int,int>;

int main(){
    int n;
    cin>>n;
    ll a[n];
    ll ans=1;
    rep(i,n){
        cin>>a[i];
    }
    rep(i,n){
        ans = ans*a[i];
    }
    if(ans>1000000000000000000){
        cout<<-1<<endl;
    }else if(n==0){
        cout<<0<<endl;
    }else{
        cout<<ans<<endl;
    }
    return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:29:14: error: expected '}' at end of input
   29 |     return 0;
      |              ^
a.cc:11:11: note: to match this '{'
   11 | int main(){
      |           ^
Language: Java

import java.io.*;
import java.util.*;
import java.lang.*:

public class Main {
 	public static void main (String[] args) {
     	Scanner sc = new Scanner(System.in);
      	int a = sc.nextInt();
      	int b = sc.nextInt();
      	System.out.println(a*b);
    }
}

Compiler output:
Main.java:3: error: ';' expected
import java.lang.*:
                  ^
1 error
Language: C

#include <stdio.h>

int main () {
    int a , b, ans = 0;
    scnaf("%d %d", &a, &b);
    ans=a*b;
    printf("%d\n", ans);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:5: error: implicit declaration of function 'scnaf'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    5 |     scnaf("%d %d", &a, &b);
      |     ^~~~~
      |     scanf
Language: C++

#include <algorithm>
#include <bitset>
#include <cassert>
#include <cmath>
#include <climits>
#include <cstdlib>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <string>
#include <vector>
using namespace std;

int main() {
    int A, V; cin >> A >> B;
    cout << A * B << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:27: error: 'B' was not declared in this scope
   17 |     int A, V; cin >> A >> B;
      |                           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
const int N = 1e6+10 , OO = 0x3f3f3f3f ;
const int mod = 1e9 + 7;
 
#define clr(arr,val) memset(arr , val , sizeof (arr))
#define loop(i,n) for(int i = 0;i < int(n);i++)
#define rloop(i,n) for(int i = int(n)-1;i >= 0;i--)
#define xloop(i,a,b) for(int i = int(a);i <= int(b);i++)
#define range(vec) for(auto &x : vec) cin >> x;
#define ALL(v) ((v).begin()) , ((v).end())
#define SZ(v)  ((int)((v).size()))
int dx[]={1,0,-1,0};int dy[]={0,1,0,-1}; //4 Direction
//int dx[]={1,1,0,-1,-1,-1,0,1};int dy[]={0,1,1,1,0,-1,-1,-1};//8 direction
//int dx[]={2,1,-1,-2,-2,-1,1,2};int dy[]={1,2,2,1,-1,-2,-2,-1};//Knight Direction
//int dx[6]={2,1,-1,-2,-1,1};int dy[6]={0,1,1,0,-1,-1}; //Hexagonal Direction

int x , n;

int main()
{
   // startTime = (double)clock();
    #ifndef ONLINE_JUDGE
        //freopen("in.in", "r", stdin);
        //freopen("out.in", "w", stdout);
    #endif
	//ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    
    scanf("%d %d",  &a , &b);
    printf("%d\n" , a * b);

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:22: error: 'a' was not declared in this scope
   31 |     scanf("%d %d",  &a , &b);
      |                      ^
a.cc:31:27: error: 'b' was not declared in this scope
   31 |     scanf("%d %d",  &a , &b);
      |                           ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main(){
  	int a, b;
  	cin >> a >> n;
  	cout << a * b << '\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:21: error: 'n' was not declared in this scope
    7 |         cin >> a >> n;
      |                     ^
Language: C++

#include <iostream>
#include<bits/stdc++.h>
using namespace std;
#define ull unsigned long long
#define ll long long int
#define all(v) v.begin(), v.end()
#define allr(v) v.rbegin(),v.rend() //reverse
#define vl vector<long long>v(n);
#define mii unordered_map<ll,ll>
#define pb push_back
double pi = 2*acos(0.0);
ll power(ll a,ll b){ ll res=1;while(b){if(b&1)res=res*a;b=b/2; a=(a*a); }return res;}


} 
 int main()
 {
       ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
       ll tst;
       tst=1;
       //cin>>tst;
    
       while(tst--)
       {
        ull a,b;
        cin>>a>>b;
        cout<<a*b<<endl;
        
       }
 }

Compiler output:
a.cc:15:1: error: expected declaration before '}' token
   15 | }
      | ^
Language: C++

#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
#include<cmath>
#include<bitset>
#include<deque>
#include<functional>
#include<iterator>
#include<map>
#include<set>
#include<stack>
#include<queue>
#include<utility>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> P;
#define a first
#define b second
#define sz(x) (ll)((x).size())
#define pb push_back
#define mp make_pair
#define bg begin()
#define ed end()
#define all(x) (x).bg,(x).ed
#define rep(i,n) for(ll i=0;i<(n);i++)
#define rep1(i,n) for(ll i=1;i<=(n);i++)
#define rrep(i,n) for(ll i=(n)-1;i>=0;i--)
#define rrep1(i,n) for(ll i=(n);i>=1;i--)
#define FOR(i,a,b) for(ll i=(a);i<(b);i++)
const ll MOD=1000000007;
const ll INF=1000000000000000;
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;}
ll maxx(ll x,ll y,ll z){return max(max(x,y),z);}
ll minn(ll x,ll y,ll z){return min(min(x,y),z);}
ll gcd(ll x,ll y){if(x%y==0) return y;else return gcd(y,x%y);}
ll lcm(ll x,ll y){return x*(y/gcd(x,y));}

vector<ll> pw2(51,1);vector<ll> pw10(19,1);
int main(){
    {rep1(i,50) pw2[i]=2*pw2[i-1];}
    {rep1(i,18) pw10[i]=10*pw10[i-1];}
    
    ll N,M; cin>>N>>M;
    lcout<<N*M<<endl;
    
}



Compiler output:
a.cc: In function 'int main()':
a.cc:46:5: error: 'lcout' was not declared in this scope
   46 |     lcout<<N*M<<endl;
      |     ^~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#include<chrono>
#define gc getchar_unlocked
#define fo(i,n) for(i=0;i<n;i++)
#define Fo(i,k,n) for(i=k;k<n?i<n:i>n;k<n?i+=1:i-=1)
#define ll long long
#define deb(x) cout << #x << "=" << x << endl
#define deb2(x, y) cout << #x << "=" << x << "," << #y << "=" << y << endl
#define pb push_back
#define mp make_pair
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define clr(x) memset(x, 0, sizeof(x))
#define sortall(x) sort(all(x))
#define tr(it, a) for(auto it = a.begin(); it != a.end(); it++)
#define PI 3.1415926535897932384626
#define MAX(a,b) (a>b)?a:b
#define MIN(a,b) (a>b)?b:a
#define MIN3(a,b,c)         MIN(a,MIN(b,c))
#define MAX3(a,b,c)         MAX(a,MAX(b,c))
#define MIN4(a,b,c,d)       MIN(a,MIN(b,MIN(c,d)))
#define MAX4(a,b,c,d)       MAX(a,MAX(b,MAX(c,d)))
#define MAX5(a,b,c,d,e)     MAX(MAX3(a,b,c),MAX(d,e))
#define MIN5(a,b,c,d,e)     MIN(MIN3(a,b,c),MIN(d,e))
typedef pair<int, int>  pii;
typedef pair<ll, ll>  pl;
typedef vector<int>   vi;
typedef vector<ll>    vl;
typedef vector<pii>   vpii;
typedef vector<pl>    vpl;
typedef vector<vi>    vvi;
typedef vector<vl>    vvl;
int mpow(int base, int exp); 
void ipgraph(int m);
void DFS(int n);
bool isprime(ll n);
ll gcd(ll a,ll b);
void rstgraph(int n);

const int mod = 1'000'000'007;
const int N = 3e5, M = N;
//=======================================================================================
vector<vector<int>> list;
vi g[N];
int vis[N];
int nodes=0;
v
void iluzn() {
 int n,m;
 cin>>n>>m;
 ll ans=n*m;
 cout<<ans;

 }

 
  
int main() {
  // #ifndef ONLINE_JUDGE
  //   freopen("input.txt","r",stdin);
  //   freopen("output.txt","w",stdout);
  // #endif
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    int t = 1;
    // cin >> t;
    while(t--) {
      iluzn();
      }
    return 0;
}
int mpow(int base, int exp) {
  base %= mod;
  int result = 1;
  while (exp > 0) {
    if (exp & 1) result = ((ll)result * base) % mod;
    base = ((ll)base * base) % mod;
    exp >>= 1;
  }
  return result;
}
bool isprime(ll n){
    if(n<=1)
        return false;
    if(n==2)
        return true;
    if(n%2==0)
        return false;
    ll rt = sqrt(n);
    for(ll i=3;i<rt;i+=2){
        if(n%i==0)
            return false;
    }
    return true;
}
ll gcd(ll a,ll b){
    if(a%b){
        return gcd(b,a%b);
    }
    else{
        return b;
    }
}
void ipgraph(int m){
  int u, v;
  while(m--){
    cin>>u>>v;
    g[u].pb(v);
    g[v].pb(u);
  }
}

void DFS(int n)
{  ++nodes;
    vis[n] = 1;
    for(vector<int>::iterator i = g[n].begin(); i != g[n].end() ; i++)
    {
        if(!vis[*i])
            DFS(*i);
    }
}
void rstgraph(int n){
  int i;
  fo(i,n+1){
    g[i].clear();
    vis[i]=0;
  }
  nodes=0;
}

Compiler output:
a.cc:49:1: error: 'v' does not name a type; did you mean 'vl'?
   49 | v
      | ^
      | vl
a.cc: In function 'int main()':
a.cc:69:7: error: 'iluzn' was not declared in this scope
   69 |       iluzn();
      |       ^~~~~
Language: C++

#include <iostream>
using namespace std;

int main() {
  int a,b
   
  cin >> a >> b;
  cout <<a * b << endl;
  return ;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: expected initializer before 'cin'
    7 |   cin >> a >> b;
      |   ^~~
a.cc:8:14: error: 'b' was not declared in this scope
    8 |   cout <<a * b << endl;
      |              ^
a.cc:9:3: error: return-statement with no value, in function returning 'int' [-fpermissive]
    9 |   return ;
      |   ^~~~~~
Language: C++

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

int main() {
	long a,b
  	cin >> a >> b;
  	cout << a*b << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: expected initializer before 'cin'
    7 |         cin >> a >> b;
      |         ^~~
a.cc:8:19: error: 'b' was not declared in this scope
    8 |         cout << a*b << endl;
      |                   ^
Language: C

#include <stdio.h>
int main(void){
    int a, b
    
    scanf("%d %d", &a, &b);
    a = a * b;
    printf("%d\n", a);
}


Compiler output:
main.c: In function 'main':
main.c:5:5: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
    5 |     scanf("%d %d", &a, &b);
      |     ^~~~~
main.c:6:13: error: 'b' undeclared (first use in this function)
    6 |     a = a * b;
      |             ^
main.c:6:13: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <iostream>
using namespace std;

int main()
{
  int a;
  int b;
  cin>>a>>b;
  cout a*b;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: expected ';' before 'a'
    9 |   cout a*b;
      |       ^~
      |       ;
Language: C

#include<stdio.h>
#include<stdlib.h>
int main()
{
    int a,b;
    scanf("%d %d",&a,&b);
    printf("%d"a*b);
}

Compiler output:
main.c: In function 'main':
main.c:7:16: error: expected ')' before 'a'
    7 |     printf("%d"a*b);
      |           ~    ^
      |                )
Language: C

#inlcude<stdio.h>

int main(){
  int a,b,out;
  
  scanf("%d %d",a,b);
  out=a*b;
  printf("%d",out);
  
  return 0;
}

Compiler output:
main.c:1:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    1 | #inlcude<stdio.h>
      |  ^~~~~~~
      |  include
main.c: In function 'main':
main.c:6:3: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    6 |   scanf("%d %d",a,b);
      |   ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #inlcude<stdio.h>
main.c:6:3: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    6 |   scanf("%d %d",a,b);
      |   ^~~~~
main.c:6:3: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:8:3: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    8 |   printf("%d",out);
      |   ^~~~~~
main.c:8:3: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:8:3: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:8:3: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: Java

//code written by a living bruh moment
import java.io.*;
import java.lang.*;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.IOException;
import java.util.StringTokenizer;
import java.util.Random;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.Collections;

public class AtcoderABC169 {
    static InputReader in = new InputReader(System.in);
    static PrintWriter out = new PrintWriter(System.out);

    public static void main(String[] args) {
        int n = in.nextInt();
        int m = in.nextInt();
        out.println(n*m);
        out.close();
    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }
        public long nextLong()
        {
            return Long.parseLong(next());
        }
        public double nextDouble()
        {
            return Double.parseDouble(next());
        }
        public String nextLine()
        {
            try
            {
                return reader.readLine();
            }
            catch(Exception e)
            {
                e.printStackTrace();
            }
            return null;
        }
        public boolean hasNext()
        {
            String next=null;
            try
            {
                next=reader.readLine();
            }
            catch(Exception e)
            {
            }
            if(next==null)
            {
                return false;
            }
            tokenizer=new StringTokenizer(next);
            return true;
        }
    }
}

Compiler output:
Main.java:16: error: class AtcoderABC169 is public, should be declared in a file named AtcoderABC169.java
public class AtcoderABC169 {
       ^
1 error
Language: C++

#include<iostream>
using namespace std;
int main(){
  int A,B;
  cin >> A >> B;
  cout A*B;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:7: error: expected ';' before 'A'
    6 |   cout A*B;
      |       ^~
      |       ;
Language: C++

#include <iostream>
int main(){

  int a,b; std::cin >> a >> b;
  std:: cout << a * b << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:26: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    5 |   std:: cout << a * b << endl;
      |                          ^~~~
      |                          std::endl
In file included from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: Java

import java.io.*;
import java.lang.Math;
import java.util.*;
public class Main {
    public static void main (String[]args) throws IOException{
        
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        String line = in.readLine(); // to read multiple integers line
        String[] strs = line.trim().split("\\s+");

        long x = Long.parseLong(strs[0]);
        double q = Double.parseDouble((strs[1]));
        double xp = q*100;
        long sum = x*xp;

        System.out.println(sum/100);

        
    }
}

Compiler output:
Main.java:14: error: incompatible types: possible lossy conversion from double to long
        long sum = x*xp;
                    ^
1 error
Language: C++

#include<bits/stdc++.h>
void main()
{
  int a,b;
  cin>>a>>b;
  cout<<a*b<<endl;
}
  

Compiler output:
a.cc:2:1: error: '::main' must return 'int'
    2 | void main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin>>a>>b;
      |   ^~~
      |   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:6:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |   cout<<a*b<<endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:6:14: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 |   cout<<a*b<<endl;
      |              ^~~~
      |              std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C

#include<stdio.h>
int main(){
  int A,B;
  scanf(%d%d,&A,&B);
  
  printf(%d,A*B);
}

Compiler output:
main.c: In function 'main':
main.c:4:9: error: expected expression before '%' token
    4 |   scanf(%d%d,&A,&B);
      |         ^
main.c:6:10: error: expected expression before '%' token
    6 |   printf(%d,A*B);
      |          ^
Language: C

#include <iostream>
using namespace std;
int main(void){
    // Your code here!
    
    int a,b;
    
    cin>>a>>b;
    
    cout<<(a*b)<<endl;
    
    return 0;
    
}


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

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int N = sc.nextInt();
		long A[] = new long[N];
		
		for(int i; i < N; ++i){
		    A[i] = sc.nextLong();
		}
		long ans = 0;
		for(int i; i < N; ++i){
		    if(A[i] < (long)Math.pow(10,18)/ans){
		        ans *= A[i];
		    }else{
		        ans = -1;
		    }
		}
		System.out.println(ans);
	}
}

Compiler output:
Main.java:9: error: variable i might not have been initialized
		for(int i; i < N; ++i){
		           ^
Main.java:13: error: variable i might not have been initialized
		for(int i; i < N; ++i){
		           ^
2 errors
Language: C

#include<stdio.h>
int main(void)
{
	int a,b,seki;
    scanf("%d %d %d",&a,&b,&c);
    c=a*b;
    printf("c=%d\n",c)
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:29: error: 'c' undeclared (first use in this function)
    5 |     scanf("%d %d %d",&a,&b,&c);
      |                             ^
main.c:5:29: note: each undeclared identifier is reported only once for each function it appears in
main.c:7:23: error: expected ';' before 'return'
    7 |     printf("c=%d\n",c)
      |                       ^
      |                       ;
    8 |     return 0;
      |     ~~~~~~
Language: Java

package cp;

import java.util.Scanner;


public class CP {

    
    public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        
        System.out.println(a*b);
    }
    
}


Compiler output:
Main.java:6: error: class CP is public, should be declared in a file named CP.java
public class CP {
       ^
1 error
Language: C++

#include<iostream>
using namespac std;
#define int long long
int32_t main()
{
  int a,b;
  cin>>a>>b;
  cout<<a*b;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namespac'
    2 | using namespac std;
      |       ^~~~~~~~
a.cc: In function 'int32_t main()':
a.cc:7:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   cin>>a>>b;
      |   ^~~
      |   std::cin
In file included 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:8:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |   cout<<a*b;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

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

int main() {
  int a,b;
  cin >> a >> b;
  
  sout << a * b << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'sout' was not declared in this scope; did you mean 'stdout'?
    8 |   sout << a * b << endl;
      |   ^~~~
      |   stdout