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

import java.io.*;
import java.util.*;
import java.math.*;
import java.awt.Point;

public class Code {
	static final long MOD = 998244353L;
	//static final long INF = -1000000000000000007L;
	//static final long MOD = 1000000007L;
	//static final int INF = 1000000007;
	public static void main(String[] args) {
		FastScanner sc = new FastScanner();
		PrintWriter pw = new PrintWriter(System.out);
		boolean[] hit = new boolean[3];
		int A = sc.ni()-1;
		int B = sc.ni()-1;
		hit[A] = true;
		hit[B] = true;
		for (int i = 0; i < 3; i++) {
			if (!hit[i]) {
				pw.println(i+1);
				break;
			}
		}
		pw.close();
	}
	
	//Fast exponentiation (x^y mod m)
	public static long power(long x, long y, long m) { 
		long ans = 1;
		x %= m;
		while (y > 0) { 
			if(y % 2 == 1) 
				ans = (ans * x) % m; 
			y /= 2;  
			x = (x * x) % m;
		} 
		return ans; 
	}
	
    public static int[][] sort(int[][] array) {
    	//Sort an array (immune to quicksort TLE)
		Random rgen = new Random();
		for (int i = 0; i < array.length; i++) {
		    int randomPosition = rgen.nextInt(array.length);
		    int[] temp = array[i];
		    array[i] = array[randomPosition];
		    array[randomPosition] = temp;
		}
		Arrays.sort(array, new Comparator<int[]>() {
			  @Override
        	  public int compare(int[] arr1, int[] arr2) {
				  return arr1[0]-arr2[0]; //ascending order
	          }
		});
		return array;
	}
    
    public static long[][] sort(long[][] array) {
    	//Sort an array (immune to quicksort TLE)
		Random rgen = new Random();
		for (int i = 0; i < array.length; i++) {
		    int randomPosition = rgen.nextInt(array.length);
		    long[] temp = array[i];
		    array[i] = array[randomPosition];
		    array[randomPosition] = temp;
		}
		Arrays.sort(array, new Comparator<long[]>() {
			  @Override
        	  public int compare(long[] arr1, long[] arr2) {
				  return 0;
	          }
		});
		return array;
	}
    
    static class FastScanner { 
        BufferedReader br; 
        StringTokenizer st; 
  
        public FastScanner() { 
            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 ni() { 
            return Integer.parseInt(next()); 
        } 
  
        long nl() { 
            return Long.parseLong(next()); 
        } 
  
        double nd() { 
            return Double.parseDouble(next()); 
        } 
  
        String nextLine() { 
            String str = ""; 
            try { 
                str = br.readLine(); 
            } catch (IOException e) {
                e.printStackTrace(); 
            } 
            return str;
        }
    }
}

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

#include <algorithm>
using namespace std;
int x, y;
int main(){
  cin>>x>>y;
  cout<<6-x-y;
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   cin>>x>>y;
      |   ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <algorithm>
  +++ |+#include <iostream>
    2 | using namespace std;
a.cc:6:3: error: 'cout' was not declared in this scope
    6 |   cout<<6-x-y;
      |   ^~~~
a.cc:6:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

#include <algorithm>
using namespace std;
int a[2], x, y;
int main(){
  cin>>x>>y;
  a[0]=1;
  a[1]=2;
  a[2]=3;
  cout<<a[6-x-y-1)
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   cin>>x>>y;
      |   ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <algorithm>
  +++ |+#include <iostream>
    2 | using namespace std;
a.cc:9:3: error: 'cout' was not declared in this scope
    9 |   cout<<a[6-x-y-1)
      |   ^~~~
a.cc:9:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:9:18: error: expected ']' before ')' token
    9 |   cout<<a[6-x-y-1)
      |                  ^
      |                  ]
Language: C++

#include<iostream>
#include<string>

using namespace std;

int main(){
    int A, B;
    cin >> A >> B;
    if (A + B == 5){
        cout << 1 << endl;
    }elif (A + B == 4){
        cout << 2 << endl;
    }elif (A + B ==3){
        cout << 3 << endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:6: error: 'elif' was not declared in this scope
   11 |     }elif (A + B == 4){
      |      ^~~~
Language: C++

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

int main() {
  int A, B, a[4];
  cin >> A >> B;
  
   a = {0, 0, 0, 0}
  a[A] = 1;
  a[B] = 1;
  for(int i=1;i < 4;i++){
    if(a[i] = 0){
      cout << i << endl;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:6: error: assigning to an array from an initializer list
    8 |    a = {0, 0, 0, 0}
      |    ~~^~~~~~~~~~~~~~
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include<stdio.h>
int main(){
  int a,b;
  scanf("%d %d",&a,&b);
  
  if((a==1 && b==2) || (a==2 && b==1)){
    printf("3");
    return 0;
  }
  else if((a==1 && b==3) || (a==3 && b==1)){
    printf("2");
    return 0;
  }
  else((a==3 && b==2) || (a==2 && b==3)){
    printf("1");
    return 0;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:41: error: expected ';' before '{' token
   14 |   else((a==3 && b==2) || (a==2 && b==3)){
      |                                         ^
      |                                         ;
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int a, b; cin>>a>>b;
  if(a!=1 or b!=1) cout<<"1\n";
  else if(a!=2 or b!=2 cout<<"2\n";
  else cout<<"3\n";
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:23: error: expected ';' before 'cout'
    7 |   else if(a!=2 or b!=2 cout<<"2\n";
      |                       ^~~~~
      |                       ;
a.cc:8:3: error: expected primary-expression before 'else'
    8 |   else cout<<"3\n";
      |   ^~~~
a.cc:7:36: error: expected ')' before 'else'
    7 |   else if(a!=2 or b!=2 cout<<"2\n";
      |          ~                         ^
      |                                    )
    8 |   else cout<<"3\n";
      |   ~~~~
Language: Java

class RoundOne{
  public static void main(String[] args){
    int A;
    int B;
    if(A=3&&B=1){
      system.out.println(2);
  }else if(A=1&&B=2)
      system.out.println(3);
  }else if(A=2&&B=3)
      system.out.println(1);
}
   


Compiler output:
Main.java:9: error: illegal start of type
  }else if(A=2&&B=3)
   ^
Main.java:9: error: <identifier> expected
  }else if(A=2&&B=3)
            ^
Main.java:9: error: ';' expected
  }else if(A=2&&B=3)
                   ^
Main.java:10: error: <identifier> expected
      system.out.println(1);
                        ^
Main.java:10: error: illegal start of type
      system.out.println(1);
                         ^
5 errors
Language: C++

#include <iostream> 
#include <bits/stdc++.h>
#include <vector> 
#include <algorithm> 
#include <string>
#include <cmath>
#include <iomanip> 
#include<climits> 
#include <utility>      
#include <numeric> 
#include <iterator>
#include <map> 
using namespace std; 
#define ll long long int
int main()
{
  int a,b
    cin>>a>>b;
  cout<<6-a-b<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:5: error: expected initializer before 'cin'
   18 |     cin>>a>>b;
      |     ^~~
a.cc:19:13: error: 'b' was not declared in this scope
   19 |   cout<<6-a-b<<endl;
      |             ^
Language: C++

int main()
{
  int a,b;
  cin>>a>>b;
  cout<<6-a-b<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   cin>>a>>b;
      |   ^~~
a.cc:5:3: error: 'cout' was not declared in this scope
    5 |   cout<<6-a-b<<endl;
      |   ^~~~
a.cc:5:16: error: 'endl' was not declared in this scope
    5 |   cout<<6-a-b<<endl;
      |                ^~~~
Language: C++

int main()
{
  int a,b;
  cin>>a>>b;
  cout<<6-a-b<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   cin>>a>>b;
      |   ^~~
a.cc:5:3: error: 'cout' was not declared in this scope
    5 |   cout<<6-a-b<<endl;
      |   ^~~~
a.cc:5:16: error: 'endl' was not declared in this scope
    5 |   cout<<6-a-b<<endl;
      |                ^~~~
Language: C++

#inclde<iostream>
using namespace std;
int c[5];
int main()
{
  int a,b;
  cin>>a>>b;
  c[a]=1;c[b]=1;
  for(int i=1;i<=3;i++)
  {
    if(c[i]==0){cout<<i<<endl;break;}
  }
  return 0;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #inclde; did you mean #include?
    1 | #inclde<iostream>
      |  ^~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   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 | #inclde<iostream>
a.cc:11:17: error: 'cout' was not declared in this scope
   11 |     if(c[i]==0){cout<<i<<endl;break;}
      |                 ^~~~
a.cc:11:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:11:26: error: 'endl' was not declared in this scope
   11 |     if(c[i]==0){cout<<i<<endl;break;}
      |                          ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #inclde<iostream>
Language: C++

#include<bits/stdc++.h>
using namespace std;
#ifdef LOCAL_DEBUG
  #include "LOCAL_DEBUG.hpp"
#endif
#define int long long

signed main(){

  vector<int> v(3, 1);
  int a, b; cin >> a >> b;
  for(int i = 0; i < n; i++){
    if(a-1 == i) v[i] = 0;
    if(b-1 == i) v[i] == 0;
  }
  for(int i = 0; i < n; i++){
    if(v[i]){
      cout << i+1 << endl;
      return 0;
    }
  }

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:22: error: 'n' was not declared in this scope
   12 |   for(int i = 0; i < n; i++){
      |                      ^
a.cc:16:22: error: 'n' was not declared in this scope
   16 |   for(int i = 0; i < n; i++){
      |                      ^
Language: C++

#inclde<bits/stdc++.h>
using namespace std;
int c[5];
int main()
{
  int a,b;
  cin>>a>>b;
  c[a]=1;c[b]=1;
  for(int i=1;i<=3;i++)
  {
    if(c[i]==0){cout<<i<<endl;break;}
  }
  return 0;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #inclde; did you mean #include?
    1 | #inclde<bits/stdc++.h>
      |  ^~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   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 | #inclde<bits/stdc++.h>
a.cc:11:17: error: 'cout' was not declared in this scope
   11 |     if(c[i]==0){cout<<i<<endl;break;}
      |                 ^~~~
a.cc:11:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:11:26: error: 'endl' was not declared in this scope
   11 |     if(c[i]==0){cout<<i<<endl;break;}
      |                          ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #inclde<bits/stdc++.h>
Language: C

#include <bits/stdc++.h>

using namespace std;

int main(){
    int x,y;
    cin >>x>>y;
    vector<int> list(4);
    for(int i=0;i<4;i++){
        list[i] =i;
    }
    list[x]=0;
    list[y]=0;
    for(int h=0;h<4;h++){
        if(list[h]){
            cout <<h<<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>
using namespace std;
int main(){
	vector<bool> curr(3,false);
    int a;
  	int b;
  	cin>>a>>b;
  	curr[a-1] = true;
  	curr[b-1] = true;
  	for(int i = 0; i < 3; ++i){
    	if(curr[i] == false){
        	cout<<i+1<<endl;
        }
    }
  	
  	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: 'vector' was not declared in this scope
    4 |         vector<bool> curr(3,false);
      |         ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include<iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:4:16: error: expected primary-expression before 'bool'
    4 |         vector<bool> curr(3,false);
      |                ^~~~
a.cc:8:9: error: 'curr' was not declared in this scope
    8 |         curr[a-1] = true;
      |         ^~~~
Language: C++

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

int main () {
    int A,B;
    cin>>A>>B;
    cout<<6-A-B<<endl;
}


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

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

int main() {
  ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
  int a, b;
  cin >> a >> b;
  if (a + b == 3) 
    cout << 3 << '\n';
  else if (a + b == 4)
    cout << 2 << '\n';
  else {
    cout << 1 << '\n';
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C

	package main

	import "fmt"

	func hoge(a, b) int {
		var c := 0 int
		if (a == 1 && b == 2) || (a == 2 && b == 1){
			return 3
		}else if (a == 1 && b == 3) || (a == 3 && b == 1) {
			return 2
		} else{
			return 1
		}
	}

	func main(){
		var a, b int
		fmt.Scan(&a, &b)
		fmt.Println(hoge(a, b))
	}

Compiler output:
main.c:1:9: error: unknown type name 'package'
    1 |         package main
      |         ^~~~~~~
main.c:3:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'import'
    3 |         import "fmt"
      |         ^~~~~~
main.c:16:9: error: unknown type name 'func'
   16 |         func main(){
      |         ^~~~
main.c: In function 'main':
main.c:17:17: error: unknown type name 'var'
   17 |                 var a, b int
      |                 ^~~
main.c:17:26: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'int'
   17 |                 var a, b int
      |                          ^~~
main.c:20:9: error: expected declaration or statement at end of input
   20 |         }
      |         ^
Language: C++

#include <iostream>
#include <string>
#include <vector>
#include <utility>
#include <functional>
#include <numeric>
#include <list>
#include <set>
#include <map>
#include <algorithm>
#include <cmath>
#include <limits>
#include <iomanip>
#include <bitset>
#include <queue>
#include <unordered_set>
#include <unordered_map>

using namespace std;
typedef long long ll;
typedef pair<int,int> pii;

#define rep(i, n) for(int i = 0;i < n;i++)
const int INF = 1LL << 30;
const int MOD = 1000000007;

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

    int a,b; cin >> a >> b;

    rep(i,3){
        if(i+1 !=  a  && u+1 != b)  cout << i+1 << endl;
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:26: error: 'u' was not declared in this scope
   34 |         if(i+1 !=  a  && u+1 != b)  cout << i+1 << endl;
      |                          ^
Language: C++

//Sani buyuk Osman Pasa Plevneden cikmam diyor.
//FatihSultanMehmedHan
//Abdulhamid Han
//Bismillahirrahmanirrahim
//█▀█─█──█──█▀█─█─█
//█▄█─█──█──█▄█─█▄█
//█─█─█▄─█▄─█─█─█─█

#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

#include <bits/stdc++.h>

using namespace std;

typedef long long lo;
typedef pair< lo,lo > PII;

#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)

const lo MAX = -1000000000000000000;
const lo MIN = 1000000000000000000;
const lo inf = 1000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 500005;
const lo mod = 1000000007;

int n,m,b[li],a[li],k,flag,t;
int cev;
string s;
vector<int> v;

int main(void){
	scanf("%d %d",&n,&m);
	a[n]=1;
	a[m]=1;
	for(int i=1;i<=3;i++){
		if(vis[i]==0)printf("%d\n",i);
	}
	return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:46:20: error: 'vis' was not declared in this scope
   46 |                 if(vis[i]==0)printf("%d\n",i);
      |                    ^~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int a,b;
  cin>>a>>b;
  if(a==1 || a==2 || a=3 || b==1 || b==2 || b==3)
  {
  if(a==1)
  {
    if(b=2)
      cout<<"3";
    else
      cout<<"2";
  }
  else if (a==2)
  {
    if(b=1)
      cout<<"3";
    else
      cout<<"1";
  }
  else
  {
    if(b=2)
      cout<<"1";
    else
      cout<<"2";
  }
  }
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:19: error: lvalue required as left operand of assignment
    7 |   if(a==1 || a==2 || a=3 || b==1 || b==2 || b==3)
      |      ~~~~~~~~~~~~~^~~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int a,b;
  cin>>a>>b;
  if(a==1 || a==2 || a=3 || b==1 || b==2 || b=3)
  {
  if(a==1)
  {
    if(b=2)
      cout<<"3";
    else
      cout<<"2";
  }
  else if (a==2)
  {
    if(b=1)
      cout<<"3";
    else
      cout<<"1";
  }
  else
  {
    if(b=2)
      cout<<"1";
    else
      cout<<"2";
  }
  }
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:42: error: lvalue required as left operand of assignment
    7 |   if(a==1 || a==2 || a=3 || b==1 || b==2 || b=3)
      |                        ~~~~~~~~~~~~~~~~~~^~~~
Language: C++

#include<iostrem>
using namespace std;
int main()
{
  int a,b;
  cin>>a>>b;
  if(a==1)
  {
    if(b=2)
      cout<<"3";
    else
      cout<<"2";
  }
  else if (a==2)
  {
    if(b=1)
      cout<<"3";
    else
      cout<<"1";
  }
  else
  {
    if(b=2)
      cout<<"1";
    else
      cout<<"2";
  }
}

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

#include<bits.stdc++.h>
using namespace std;
typedef long long ll;
#define FAST ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
int main(){
    FAST
    int a,b;
    cin>>a>>b;
    if(a==1 && b==2)cout<<3;
    else if(a==1 && b==3)cout<<2;
    if(a==3 && b==2)cout<<1;
    return 0;
}

Compiler output:
a.cc: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 st first
#define nd second
#define mp make_pair
#define pb push_back
#define sol (k+k)
#define sag (k+k+1)
#define orta ((bas+son)/2)
#define ort ((bas+son+1ll)/2ll)
#define coc g[node][i]
#define mod 1000000007
#define inf 1000000009
#define N 1000005
using namespace std;
 
typedef long long ll;
typedef pair < int , int > ii;
 
int x,y;
int main() {
	
	cin >> x >> y; 
	if(x + y == 3) cout << "3";
	else if (x + y == 4) cout << "2";
	else
	 cout << "1"
	 
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:21: error: expected ';' before 'return'
   26 |          cout << "1"
      |                     ^
      |                     ;
   27 | 
   28 |         return 0;
      |         ~~~~~~
Language: C++

#include<bits/stdc++.h>
using name space std;
int mark[4];
int main()
{
	int a,b;
  	cin>>a>>b;
  	mark[a]++;
  	mark[b]++;
  	for(int i=1;i<4;i++)
      	if(!mark[i])
          	cout<<i;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'name'
    2 | using name space std;
      |       ^~~~
a.cc: In function 'int main()':
a.cc:7:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |         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:12:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |                 cout<<i;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

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

int main(){
  int a,b;
  cin>>a>>b;
  cout<<6-a-b<<endl;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incldue; did you mean #include?
    1 | #incldue <bits/stdc++.h>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
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 | #incldue <bits/stdc++.h>
a.cc:7:3: error: 'cout' was not declared in this scope
    7 |   cout<<6-a-b<<endl;
      |   ^~~~
a.cc:7:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:7:16: error: 'endl' was not declared in this scope
    7 |   cout<<6-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 | #incldue <bits/stdc++.h>
Language: C++

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

int main ()
{
  int a, b;
  
  cin >> a >> b;
  
  if (a != 1 && b != 1) cout << 1;
  
  else if (a != 2 && b != 2) cout << 2;
  
  else cout << 3;
  
  return 0;
}

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

#include<iostream>
using namespace std;
int a,b;
int main()
{
  cin >> a>> b;
  for(int i=1;i<4;++i){
    if(i!=a && i!=b) cout << i << "\n";
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:2: error: expected '}' at end of input
    9 | }
      |  ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

#include<iostream>
using namespace std;
int a,b;
int main()
{
  cin >> a>> b;
  for(int i=1;i<4;+*i){
    if(i!=a && i!=b) cout << i << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: invalid type argument of unary '*' (have 'int')
    7 |   for(int i=1;i<4;+*i){
      |                    ^~
a.cc:9:2: error: expected '}' at end of input
    9 | }
      |  ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: Java

import java.io.*;
import java.lang.reflect.Array;
import java.util.*;
import java.lang.*;
import java.math.*;


public class Tests {
    static class sol{
        static int []A=new int[31235325];
        public static void solve(InputReader in,PrintWriter out) {
            int a=in.nextInt();
            int b=in.nextInt();

            A[a ] = 1;
            A[b ] = 1;
            if(A[1]==0)
                out.print(1);
            else if(A[2]==0)
                out.print(2);
            else if(A[3]==0)
                out.print(3);

        }
    }
    public static void main(String[] args) throws FileNotFoundException {
          InputStream input=System.in;
//        InputStream input=new FileInputStream(new File("src//input.in"));
        InputReader in=new InputReader(input);
        OutputStream output=System.out;
        PrintWriter out=new PrintWriter(output);
        sol a=new sol();
        a.solve(in,out);
        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 boolean hasNext() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (Exception e) {
                    return false;
                }
            }
            return true;
        }

        public String next() {
            if (hasNext())
                return tokenizer.nextToken();
            return null;
        }

        public String nextLine() {
            if (hasNext())
                return tokenizer.nextToken("");
            else
                return null;
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public long nextLong() {
            return Long.parseLong(next());
        }

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

        public BigInteger nextBigInteger() {
            return new BigInteger(next());
        }

        public BigDecimal nextBigDecimal() {
            return new BigDecimal(next());
        }
    }
}


Compiler output:
Main.java:8: error: class Tests is public, should be declared in a file named Tests.java
public class Tests {
       ^
1 error
Language: Java

import java.io.*;
import java.lang.reflect.Array;
import java.util.*;
import java.lang.*;
import java.math.*;


public class main {
    static class sol{

        public static void solve(InputReader in,PrintWriter out) {
            int a=in.nextInt();
            int b=in.nextInt();
            int []A=new int[3];
            if(a<3&&b<3) {
                A[a - 1] = 1;
                A[b - 1] = 1;
            }
            for(int i=1;i<=3;i++)
                if(A[i-1]==0){
                    out.print(i);
                    return ;
                }
        }
    }
    public static void main(String[] args) throws FileNotFoundException {
   InputStream input=System.in;
     //   InputStream input=new FileInputStream(new File("src//input.in"));
        InputReader in=new InputReader(input);
        OutputStream output=System.out;
        PrintWriter out=new PrintWriter(output);
        sol a=new sol();
        a.solve(in,out);
        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 boolean hasNext() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (Exception e) {
                    return false;
                }
            }
            return true;
        }

        public String next() {
            if (hasNext())
                return tokenizer.nextToken();
            return null;
        }

        public String nextLine() {
            if (hasNext())
                return tokenizer.nextToken("");
            else
                return null;
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public long nextLong() {
            return Long.parseLong(next());
        }

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

        public BigInteger nextBigInteger() {
            return new BigInteger(next());
        }

        public BigDecimal nextBigDecimal() {
            return new BigDecimal(next());
        }
    }
}


Compiler output:
Main.java:8: error: class main is public, should be declared in a file named main.java
public class main {
       ^
1 error
Language: Java

import java.io.*;
import java.lang.reflect.Array;
import java.util.*;
import java.lang.*;
import java.math.*;


public class Tests {
    static class sol{

        public static void solve(InputReader in,PrintWriter out) {
            int a=in.nextInt();
            int b=in.nextInt();
            int []A=new int[3];
            if(a<3&&b<3) {
                A[a - 1] = 1;
                A[b - 1] = 1;
            }
            for(int i=1;i<=3;i++)
                if(A[i-1]==0){
                    out.print(i);
                    return ;
                }
        }
    }
    public static void main(String[] args) throws FileNotFoundException {
        InputStream input=System.in;
     //   InputStream input=new FileInputStream(new File("src//input.in"));
        InputReader in=new InputReader(input);
        OutputStream output=System.out;
        PrintWriter out=new PrintWriter(output);
        sol a=new sol();
        a.solve(in,out);
        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 boolean hasNext() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (Exception e) {
                    return false;
                }
            }
            return true;
        }

        public String next() {
            if (hasNext())
                return tokenizer.nextToken();
            return null;
        }

        public String nextLine() {
            if (hasNext())
                return tokenizer.nextToken("");
            else
                return null;
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public long nextLong() {
            return Long.parseLong(next());
        }

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

        public BigInteger nextBigInteger() {
            return new BigInteger(next());
        }

        public BigDecimal nextBigDecimal() {
            return new BigDecimal(next());
        }
    }
}


Compiler output:
Main.java:8: error: class Tests is public, should be declared in a file named Tests.java
public class Tests {
       ^
1 error
Language: Java

import java.io.*;
import java.lang.reflect.Array;
import java.util.*;
import java.lang.*;
import java.math.*;


public class Tests {
    static class sol{

        public static void solve(InputReader in,PrintWriter out) {
            int a=in.nextInt();
            int b=in.nextInt();
            int A[]=new int[3+1];
            A[a]=1;
            A[b]=1;
            for(int i=1;i<4;i++)
                if(A[i]==0){
                    out.print(i);
                    return ;
                }
        }
    }
    public static void main(String[] args) throws FileNotFoundException {
    InputStream input=System.in;
       // InputStream input=new FileInputStream(new File("src//input.in"));
        InputReader in=new InputReader(input);
        OutputStream output=System.out;
        PrintWriter out=new PrintWriter(output);
        sol a=new sol();
        a.solve(in,out);
        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 boolean hasNext() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (Exception e) {
                    return false;
                }
            }
            return true;
        }

        public String next() {
            if (hasNext())
                return tokenizer.nextToken();
            return null;
        }

        public String nextLine() {
            if (hasNext())
                return tokenizer.nextToken("");
            else
                return null;
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public long nextLong() {
            return Long.parseLong(next());
        }

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

        public BigInteger nextBigInteger() {
            return new BigInteger(next());
        }

        public BigDecimal nextBigDecimal() {
            return new BigDecimal(next());
        }
    }
}


Compiler output:
Main.java:8: error: class Tests is public, should be declared in a file named Tests.java
public class Tests {
       ^
1 error
Language: C++

#include<iostream>
#include<string>
using namespace std;
int main()
{
  string a;
  string b;
  int n;
  cin>>n;
  cin>>a;
  cin>>b;
  string ans="";
  
 for(int i=0;i<n;i++)
 {
   s=s+a[i];
   s=s+b[i];
   
 }
  cout<<s;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:4: error: 's' was not declared in this scope
   16 |    s=s+a[i];
      |    ^
a.cc:20:9: error: 's' was not declared in this scope
   20 |   cout<<s;
      |         ^
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:
a.cc: In function 'int main()':
a.cc:8:17: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
    8 |   cout << a ^ b << endl;
      |               ~~^~~~~~~
Language: C++

#include <iostream>
using namespace std
int main()
{
  int a,b;
  cin>>a>>b;
  cout<<(6-a-b);
}


Compiler output:
a.cc:2:20: error: expected ';' before 'int'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | int main()
      | ~~~
Language: Java


import java.util.*;

public class Main {
    public static void main(String[] args) {

        solve_148_A();
      
        return;
    }

    private static void solve_148_A() {
        Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();
        int C;
        
        C = (6 - A - B);
        
        System.out.println(C);
    }

Compiler output:
Main.java:21: error: reached end of file while parsing
    }
     ^
1 error
Language: C++

// MACRO FOR INPUT
// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
#[allow(unused_macros)]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        let mut next = || { iter.next().unwrap() };
        input_inner!{next, $($r)*}
    };
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String{
            bytes
                .by_ref()
                .map(|r|r.unwrap() as char)
                .skip_while(|c|c.is_whitespace())
                .take_while(|c|!c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}

#[allow(unused_macros)]
macro_rules! input_inner {
    ($next:expr) => {};
    ($next:expr, ) => {};

    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };

    ($next:expr, mut $var:ident : $t:tt $($r:tt)*) => {
        let mut $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}

#[allow(unused_macros)]
macro_rules! read_value {
    ($next:expr, ( $($t:tt),* )) => {
        ( $(read_value!($next, $t)),* )
    };

    ($next:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    };

    ($next:expr, chars) => {
        read_value!($next, String).chars().collect::<Vec<char>>()
    };

    ($next:expr, bytes) => {
        read_value!($next, String).into_bytes()
    };

    ($next:expr, usize1) => {
        read_value!($next, usize) - 1
    };

    ($next:expr, $t:ty) => {
        $next().parse::<$t>().expect("Parse error")
    };
}
////////////////////////////////////////////////////////

fn solve() {
    input!(a: i32, b: i32);
    let mut ans;
    ans = 6 - a -b;

    println!("{}", ans);
}

fn main() {
    // In order to avoid potential stack overflow, spawn a new thread.
    let stack_size = 104_857_600; // 100 MB
    let thd = std::thread::Builder::new().stack_size(stack_size);
    thd.spawn(|| solve()).unwrap().join().unwrap();
}

Compiler output:
a.cc:3:2: error: invalid preprocessing directive #[
    3 | #[allow(unused_macros)]
      |  ^
a.cc:25:2: error: invalid preprocessing directive #[
   25 | #[allow(unused_macros)]
      |  ^
a.cc:41:2: error: invalid preprocessing directive #[
   41 | #[allow(unused_macros)]
      |  ^
a.cc:48:10: error: too many decimal points in number
   48 |         (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
      |          ^~~~~~~
a.cc:4:1: error: 'macro_rules' does not name a type
    4 | macro_rules! input {
      | ^~~~~~~~~~~
a.cc:26:1: error: 'macro_rules' does not name a type
   26 | macro_rules! input_inner {
      | ^~~~~~~~~~~
a.cc:42:1: error: 'macro_rules' does not name a type
   42 | macro_rules! read_value {
      | ^~~~~~~~~~~
a.cc:69:1: error: 'fn' does not name a type
   69 | fn solve() {
      | ^~
a.cc:77:1: error: 'fn' does not name a type
   77 | fn main() {
      | ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define MOD 1000000007
//#define MOD 998244353
#define INF 1145141919810893364
//#define INF 810114514
#define PI 3.141592653589
typedef pair<int,int> PP;
typedef long long ll;
#define int ll
#define setdouble setprecision
#define REP(i,n) for(int i=0;i<(n);++i)
#define OREP(i,n) for(int i=1;i<=(n);++i)
#define RREP(i,n) for(int i=(n)-1;i>=0;--i)
#define GOODBYE do { cout << "0" << endl; return 0; } while (false)
#define MM <<" "<<
#define Endl endl


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



Compiler output:
a.cc: In function 'int main()':
a.cc:23:17: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   23 |     cout << A^B << endl;
      |               ~~^~~~~~~
Language: C++

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

int main() {
    int a, b;
    cin >> a >> b;
    for(int i = 0; i <= b; i++){
        if((A * i) % B == 0){
            cout << A * i << endl;
            break;
        }
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: 'A' was not declared in this scope
    8 |         if((A * i) % B == 0){
      |             ^
a.cc:8:22: error: 'B' was not declared in this scope
    8 |         if((A * i) % B == 0){
      |                      ^
Language: C

#include<stdio.h>
int main(){
  int a, b;
  scnaf("%d %d", &a, &b);
  printf("%d\n", 6 - a- b);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:3: error: implicit declaration of function 'scnaf'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    4 |   scnaf("%d %d", &a, &b);
      |   ^~~~~
      |   scanf
Language: C

#include<stdio.h>
int main(){
  int a, b;
  scnaf("%d %d", &a, &b);
  printf("&d\n", 6 - a- b);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:3: error: implicit declaration of function 'scnaf'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    4 |   scnaf("%d %d", &a, &b);
      |   ^~~~~
      |   scanf
Language: C++

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

int main(){
  int A,B,C;
  cin >>A>>B;
  
  if(A==1 or B==2){
    C = 3;
  }else if(A==1 or B==3){
    C = 2;
  }else if(A==2 or B==3){
    C = 1;
  }else if(A==2 or B==1){
    C = 3;
  }else if(A==3 or B==1){
    C = 2;
  }else(A==3 or B==2){
    C = 1;
  }
  
  cout<<C<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:22: error: expected ';' before '{' token
   19 |   }else(A==3 or B==2){
      |                      ^
      |                      ;
Language: C++

#include <bits\stdc++.h>

#define sc second
#define fr first
#define mk make_pair
#define pb push_back
#define int long long

using namespace std;

const int N = (1e6 + 5);
const int inf = (1e9 + 7);

main () {
    int a,b;
    cin >> a >> b;
    cout << 6 - a - b << endl;

}


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

using System;
Class tintin{
  	static void main(){
      var n    = int.Parse(Console.ReadLine());
      var m    = int.Parse(Console.ReadLine());
      Console.Write("{0}",6-n-m);
    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:2:1: error: 'Class' does not name a type; did you mean 'class'?
    2 | Class tintin{
      | ^~~~~
      | class
Language: C++

#include<stdio.h>
#include<math.h>
#include<queue>
#include<stack>
#include<string.h>
#include<algorithm>
#include<cctype>
#include<map>
#include<set>
typedef long long ll;
using namespace std;
int u[4];
int main()
{
	int a,b;
	scanf("%d%d",&a,&b);
	u[a]=1;u[b]=1;
	for(int i=1;i<=3;i++){
		if(a[i]==0)printf("%d\n",i);
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:21: error: invalid types 'int[int]' for array subscript
   19 |                 if(a[i]==0)printf("%d\n",i);
      |                     ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
   
  int A,B;
  
  cin >> A >> B;
  
  if (A != B){
    cout << 6-A-B << endl;
  }
  
  ]
  

  

Compiler output:
a.cc: In function 'int main()':
a.cc:14:3: error: expected primary-expression before ']' token
   14 |   ]
      |   ^
a.cc:14:4: error: expected '}' at end of input
   14 |   ]
      |    ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

int main()
{
 int a,b;
  cin >> a >> b;
if (a < b)
{int tmp = a;
 a = b;
 b = tmp;
}
  if (a == 3 && b == 2)
    cout << 1 << endl;
  else if (a == 3 && b == 1)
    cout << 2 << endl;
  else
    cout << 3 << endl;
}

Compiler output:
a.cc: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++)
using namespace std;
typedef long long ll;

int main() {
  int a,b; cin >> a >> b;
  int mini = min(a,b), max = maxi(a,b);
  if(mini == 1 && maxi == 2) cout << 3 << endl;
  if(mini == 1 && maxi == 3) cout << 2 << endl;
  if(mini == 2 && maxi == 3) cout << 1 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:30: error: 'maxi' was not declared in this scope; did you mean 'max'?
    8 |   int mini = min(a,b), max = maxi(a,b);
      |                              ^~~~
      |                              max
Language: C++

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

int main() {
  int a,b; cin >> a >> b;
  int min = min(a,b), max = max(a,b);
  if(min == 1 && max == 2) cout << 3 << endl;
  if(min == 1 && max == 3) cout << 2 << endl;
  if(min == 2 && max == 3) cout << 1 << endl;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:16: error: 'min' cannot be used as a function
    8 |   int min = min(a,b), max = max(a,b);
      |             ~~~^~~~~
a.cc:9:22: error: invalid operands of types '<unresolved overloaded function type>' and 'int' to binary 'operator=='
    9 |   if(min == 1 && max == 2) cout << 3 << endl;
      |                  ~~~~^~~~
a.cc:10:22: error: invalid operands of types '<unresolved overloaded function type>' and 'int' to binary 'operator=='
   10 |   if(min == 1 && max == 3) cout << 2 << endl;
      |                  ~~~~^~~~
a.cc:11:22: error: invalid operands of types '<unresolved overloaded function type>' and 'int' to binary 'operator=='
   11 |   if(min == 2 && max == 3) cout << 1 << endl;
      |                  ~~~~^~~~
Language: C++

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

int main(){
  int A, B, r, tmp;
  long x
  cin >> A >> B;
  x = A * B;
 
  /* 自然数 A > B を確認・入替 */
  if(A<B){
    tmp = A;
    A = B;
    B = tmp;
  }
 
  /* ユークリッドの互除法 */
  r = A % B;
  while(r!=0){
    A = B;
    B = r;
    r = A % B;
  }
	cout << x / 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:8:3: error: 'x' was not declared in this scope
    8 |   x = A * B;
      |   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
   
  int N;
  
  cin >> N;
  
  string S;
  
  string T;
  
  cin >> S >> T;
  
  for (int i=0; i<N; i++){
   printf(S[i]);
  }
  
  for (int i=0; i<N; i++){
    printf(T[i]);
  }
   }
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:17:10: error: invalid conversion from '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} to 'const char*' [-fpermissive]
   17 |    printf(S[i]);
      |    ~~~~~~^~~~~~
      |          |
      |          __gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}
In file included from /usr/include/c++/14/cstdio:42,
                 from /usr/include/c++/14/ext/string_conversions.h:45,
                 from /usr/include/c++/14/bits/basic_string.h:4154,
                 from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/stdio.h:363:43: note:   initializing argument 1 of 'int printf(const char*, ...)'
  363 | extern int printf (const char *__restrict __format, ...);
      |                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
a.cc:21:11: error: invalid conversion from '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} to 'const char*' [-fpermissive]
   21 |     printf(T[i]);
      |     ~~~~~~^~~~~~
      |           |
      |           __gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}
/usr/include/stdio.h:363:43: note:   initializing argument 1 of 'int printf(const char*, ...)'
  363 | extern int printf (const char *__restrict __format, ...);
      |                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~