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

#include<stdio.h>
int main(){
  int a,b,d,c,d;
  scanf("%d%d",&a,&b);
  c=a*b;
  d=2*a+2*b;
  printf("%d %d",c,d);
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:15: error: redeclaration of 'int d'
    3 |   int a,b,d,c,d;
      |               ^
a.cc:3:11: note: 'int d' previously declared here
    3 |   int a,b,d,c,d;
      |           ^
Language: C++

#include<stdio.h>

int main(){

   int a , b;


    scanf("%d %d", &a , &b);
    
    printf("%d \n", a * b , 2(a + b));    

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:30: error: expression cannot be used as a function
   10 |     printf("%d \n", a * b , 2(a + b));
      |                             ~^~~~~~~
Language: C++

#include<stdio.h>

int main(){

   int a , b;


    scanf("%d %d", &a , &b);
    
    printf("%d \n", a * b );   

    printf("%d \n , 2(a + b)); 

    return 0;
}

Compiler output:
a.cc:12:12: warning: missing terminating " character
   12 |     printf("%d \n , 2(a + b));
      |            ^
a.cc:12:12: error: missing terminating " character
   12 |     printf("%d \n , 2(a + b));
      |            ^~~~~~~~~~~~~~~~~~~ 
a.cc: In function 'int main()':
a.cc:14:5: error: expected primary-expression before 'return'
   14 |     return 0;
      |     ^~~~~~
Language: C++

#include<stdio.h>

int main(){

   int a , b;


    scanf("%d %d", &a , &b);
    
    printf("%d \n", a * b );   

    printf("%d \n", 2(a + b)); 

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:22: error: expression cannot be used as a function
   12 |     printf("%d \n", 2(a + b));
      |                     ~^~~~~~~
Language: C++

#include<stdio.h>

int main(){

   int a , b;


    scanf("%d %d", &a , &b);
    
    printf("%d \n", a * b );   

    printf("%d \n", 2a + 2b); 

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:21: error: unable to find numeric literal operator 'operator""a'
   12 |     printf("%d \n", 2a + 2b);
      |                     ^~
a.cc:12:26: error: unable to find numeric literal operator 'operator""b'
   12 |     printf("%d \n", 2a + 2b);
      |                          ^~
Language: C++

#include <stdio.h>
int main()
{
int a, b, c, d;

scanf("%d %d , &a, &b);
c = a * b;
d = 2 * (a + b);
printf("%d %d\n",c,d);
retutrn 0;
}

Compiler output:
a.cc:6:7: warning: missing terminating " character
    6 | scanf("%d %d , &a, &b);
      |       ^
a.cc:6:7: error: missing terminating " character
    6 | scanf("%d %d , &a, &b);
      |       ^~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:7:10: error: expected ')' before ';' token
    7 | c = a * b;
      |          ^
      |          )
a.cc:6:6: note: to match this '('
    6 | scanf("%d %d , &a, &b);
      |      ^
a.cc:10:1: error: 'retutrn' was not declared in this scope
   10 | retutrn 0;
      | ^~~~~~~
Language: C++

#include <stdio.h>
int main()
{
int a, b, c, d;
scanf("%d %d , &a, &b);
c = a * b;
d = 2 * (a + b);
printf("%d %d\n",c,d);
retutrn 0;
}

Compiler output:
a.cc:5:7: warning: missing terminating " character
    5 | scanf("%d %d , &a, &b);
      |       ^
a.cc:5:7: error: missing terminating " character
    5 | scanf("%d %d , &a, &b);
      |       ^~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:10: error: expected ')' before ';' token
    6 | c = a * b;
      |          ^
      |          )
a.cc:5:6: note: to match this '('
    5 | scanf("%d %d , &a, &b);
      |      ^
a.cc:9:1: error: 'retutrn' was not declared in this scope
    9 | retutrn 0;
      | ^~~~~~~
Language: C++

#include <stdio.h>
int main()
{
int a, b, c, d;

scanf("%d %d , &a, &b);
c = a * b;
d = 2 * (a + b);
printf("%d %d\n",c,d);
return 0;
}

Compiler output:
a.cc:6:7: warning: missing terminating " character
    6 | scanf("%d %d , &a, &b);
      |       ^
a.cc:6:7: error: missing terminating " character
    6 | scanf("%d %d , &a, &b);
      |       ^~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:7:10: error: expected ')' before ';' token
    7 | c = a * b;
      |          ^
      |          )
a.cc:6:6: note: to match this '('
    6 | scanf("%d %d , &a, &b);
      |      ^
Language: C++

#include <stdio.h>
int main()
{
    int a, b, c, d;

    scanf("%d %d , &a, &b);
    c = a * b;
    d = 2 * (a + b);
    printf("%d %d\n",c,d);
return 0;
}

Compiler output:
a.cc:6:11: warning: missing terminating " character
    6 |     scanf("%d %d , &a, &b);
      |           ^
a.cc:6:11: error: missing terminating " character
    6 |     scanf("%d %d , &a, &b);
      |           ^~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:7:14: error: expected ')' before ';' token
    7 |     c = a * b;
      |              ^
      |              )
a.cc:6:10: note: to match this '('
    6 |     scanf("%d %d , &a, &b);
      |          ^
Language: C++

#include <stdio.h>
int main()
{
    int a, b, c, d;
    scanf("%d %d , &a, &b);
    c = a * b;
    d = 2 * (a + b);
    printf("%d %d\n",c,d);
    return 0;
}

Compiler output:
a.cc:5:11: warning: missing terminating " character
    5 |     scanf("%d %d , &a, &b);
      |           ^
a.cc:5:11: error: missing terminating " character
    5 |     scanf("%d %d , &a, &b);
      |           ^~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:14: error: expected ')' before ';' token
    6 |     c = a * b;
      |              ^
      |              )
a.cc:5:10: note: to match this '('
    5 |     scanf("%d %d , &a, &b);
      |          ^
Language: C++

#include <stdio.h>
int main(){
int a, b, c, d;
scanf("%d %d , &a, &b);
c = a * b;
d = 2 * (a + b);
printf("%d %d\n",c,d);
return 0;
}

Compiler output:
a.cc:4:7: warning: missing terminating " character
    4 | scanf("%d %d , &a, &b);
      |       ^
a.cc:4:7: error: missing terminating " character
    4 | scanf("%d %d , &a, &b);
      |       ^~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:5:10: error: expected ')' before ';' token
    5 | c = a * b;
      |          ^
      |          )
a.cc:4:6: note: to match this '('
    4 | scanf("%d %d , &a, &b);
      |      ^
Language: C++

#include <stdio.h>
int main()
{
	int a,b,x,y;

	scanf("%d%d",&a,&b);
	x=2a+2b;
	y = a*b;
	printf("%d %d\n",x,y);
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: unable to find numeric literal operator 'operator""a'
    7 |         x=2a+2b;
      |           ^~
a.cc:7:14: error: unable to find numeric literal operator 'operator""b'
    7 |         x=2a+2b;
      |              ^~
Language: C++

#include <stdio.h>
int main()
{
	int a,b,x,y;

	scanf("%d%d",&a,&b);
	x=a*b;
	y=2*a+2*b;
	printf("%d %d\n",x y);
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:27: error: expected ')' before 'y'
    9 |         printf("%d %d\n",x y);
      |               ~           ^~
      |                           )
Language: C++

#include <stdio.h>

int main(void)

int a, b;
int S, N;
{

	scanf("%d", &a);
	scanf("%d", &b);

	S = a * b;
	N = a + b + a + b;

	printf("%d", S);
	printf("%d", N);

	return 0;
}

Compiler output:
a.cc:5:1: error: expected initializer before 'int'
    5 | int a, b;
      | ^~~
a.cc:7:1: error: expected unqualified-id before '{' token
    7 | {
      | ^
Language: C++

#include<iostream>
using namespace std;
int main (){

int a,b;
cin >> a >> b;
cout << a*b << 2a+2b << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:16: error: unable to find numeric literal operator 'operator""a'
    7 | cout << a*b << 2a+2b << endl;
      |                ^~
a.cc:7:19: error: unable to find numeric literal operator 'operator""b'
    7 | cout << a*b << 2a+2b << endl;
      |                   ^~
Language: C++

#include<iostream>
using namespace std;
int main (){

int a,b;
cin >> a >> b;
cout << a*b << '' << 2a+2b << endl;
	return 0;
}

Compiler output:
a.cc:7:16: error: empty character constant
    7 | cout << a*b << '' << 2a+2b << endl;
      |                ^~
a.cc: In function 'int main()':
a.cc:7:22: error: unable to find numeric literal operator 'operator""a'
    7 | cout << a*b << '' << 2a+2b << endl;
      |                      ^~
a.cc:7:25: error: unable to find numeric literal operator 'operator""b'
    7 | cout << a*b << '' << 2a+2b << endl;
      |                         ^~
Language: C++

#include<iostream>
using namespace std;
int main (){

int a,b;
cin >> a >> b;
cout << a*b << '' << 2*a+2*b << endl;
	return 0;
}

Compiler output:
a.cc:7:16: error: empty character constant
    7 | cout << a*b << '' << 2*a+2*b << endl;
      |                ^~
Language: C++

#include<iostream>
using namespace std;
int main (){

int a,b,c,d;
cin >> a >> b;
c = a + b;
d = c*2;

cout << a*b << '' << d<< endl;
	return 0;
}

Compiler output:
a.cc:10:16: error: empty character constant
   10 | cout << a*b << '' << d<< endl;
      |                ^~
Language: C++

#include<iostream>
using namespace std;
int main(){
 int a, b;
 cin >> a >> b;
 cout << a*b << " " << 2a+2b << endl;
 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:24: error: unable to find numeric literal operator 'operator""a'
    6 |  cout << a*b << " " << 2a+2b << endl;
      |                        ^~
a.cc:6:27: error: unable to find numeric literal operator 'operator""b'
    6 |  cout << a*b << " " << 2a+2b << endl;
      |                           ^~
Language: C++

#include<iostream>
using namespace std;
int main(){
 int a, b;
 cin >> a >> b;
 cout << a * b << " " << 2(a*b) << endl;
 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:27: error: expression cannot be used as a function
    6 |  cout << a * b << " " << 2(a*b) << endl;
      |                          ~^~~~~
Language: C++

#include<iostream>
using namespace std;
int main(){
 int a, b;
 cin >> a >> b;
 cout << a*b << " " << 2(a*b) << endl;
 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:25: error: expression cannot be used as a function
    6 |  cout << a*b << " " << 2(a*b) << endl;
      |                        ~^~~~~
Language: C++

#include<iostream>
using namespace std;
int main(){
 int a, b;
 cin >> a >> b;
 cout << a*b << " " << 2(a+b) << endl;
 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:25: error: expression cannot be used as a function
    6 |  cout << a*b << " " << 2(a+b) << endl;
      |                        ~^~~~~
Language: C++

#include <cstdio>

using namespace std;

int main(){
    int x;
    
    scanf("%d%d", &a, &b);
    
    printf("%d\n%d\n", a*b, 2*(a+b));
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:20: error: 'a' was not declared in this scope
    8 |     scanf("%d%d", &a, &b);
      |                    ^
a.cc:8:24: error: 'b' was not declared in this scope
    8 |     scanf("%d%d", &a, &b);
      |                        ^
Language: C++

using System;

class program
{
    static void Main()
    {
        string[] str = Console.ReadLine().Split(' ');
        double a = double.Parse(str[0]);
        double b = double.Parse(str[1]);

        var area = a * b; //??¢???
        var length = (a * 2) + (b * 2); //??¨?????????

        Console.WriteLine("{0} {1}", area, length);
    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:16:2: error: expected ';' after class definition
   16 | }
      |  ^
      |  ;
a.cc: In static member function 'static void program::Main()':
a.cc:7:9: error: 'string' was not declared in this scope
    7 |         string[] str = Console.ReadLine().Split(' ');
      |         ^~~~~~
a.cc:7:16: error: expected primary-expression before ']' token
    7 |         string[] str = Console.ReadLine().Split(' ');
      |                ^
a.cc:8:20: error: expected primary-expression before 'double'
    8 |         double a = double.Parse(str[0]);
      |                    ^~~~~~
a.cc:9:20: error: expected primary-expression before 'double'
    9 |         double b = double.Parse(str[1]);
      |                    ^~~~~~
a.cc:11:9: error: 'var' was not declared in this scope
   11 |         var area = a * b; //??¢???
      |         ^~~
a.cc:12:13: error: expected ';' before 'length'
   12 |         var length = (a * 2) + (b * 2); //??¨?????????
      |             ^~~~~~
a.cc:14:9: error: 'Console' was not declared in this scope
   14 |         Console.WriteLine("{0} {1}", area, length);
      |         ^~~~~~~
a.cc:14:38: error: 'area' was not declared in this scope
   14 |         Console.WriteLine("{0} {1}", area, length);
      |                                      ^~~~
a.cc:14:44: error: 'length' was not declared in this scope
   14 |         Console.WriteLine("{0} {1}", area, length);
      |                                            ^~~~~~
Language: C++

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

int main(){

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

	cout << a*b << " " << 2(a+b) << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:32: error: expression cannot be used as a function
    9 |         cout << a*b << " " << 2(a+b) << endl;
      |                               ~^~~~~
Language: C++

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

int main(){
  cin >> a >> b;
  cout << a*b <<" " << (a+b)*2 << 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>

int main(int argc, char const *argv[]) {
  int a, b;
  int area, length;
  std::cin >> a >> b;
  area = a*b
  length = 2*a + 2*b
  std::cout << area << " " << length << '\n';
  return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:7:13: error: expected ';' before 'length'
    7 |   area = a*b
      |             ^
      |             ;
    8 |   length = 2*a + 2*b
      |   ~~~~~~
Language: C++

#include <stdio.h>
int main(){
 int a;
 int b;
 
 scanf ("%d%d",&a,&b);
 int c=a*b;
 int d=2(a+b); 
printf("%d %d",c,d);
return(0);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: expression cannot be used as a function
    8 |  int d=2(a+b);
      |        ~^~~~~
Language: C++

public class Main(){
 public static void main(String[]args){
  int a;
  int b;
  a=new java.util.Scanner(System.in).nextInt();
  b=new java.util.Scanner(System.in).nextInt();
  System.out.println(a*b+" "+2*(a+b));
}

}

Compiler output:
a.cc:1:1: error: expected unqualified-id before 'public'
    1 | public class Main(){
      | ^~~~~~
Language: C++

process.stdin.resume();
process.stdin.setEncoding('utf8');
process.stdin.on('data', function (chunk)
{
    const a = parseInt(chunk.trim().split(' ')[0], 10);
    const b = parseInt(chunk.trim().split(' ')[1], 10);
    const s = a * b;
    const l = a * 2 + b * 2;

    console.log(s + ' ' + l);
});

Compiler output:
a.cc:2:27: warning: multi-character character constant [-Wmultichar]
    2 | process.stdin.setEncoding('utf8');
      |                           ^~~~~~
a.cc:3:18: warning: multi-character character constant [-Wmultichar]
    3 | process.stdin.on('data', function (chunk)
      |                  ^~~~~~
a.cc:1:1: error: 'process' does not name a type
    1 | process.stdin.resume();
      | ^~~~~~~
a.cc:2:1: error: 'process' does not name a type
    2 | process.stdin.setEncoding('utf8');
      | ^~~~~~~
a.cc:3:1: error: 'process' does not name a type
    3 | process.stdin.on('data', function (chunk)
      | ^~~~~~~
a.cc:11:2: error: expected unqualified-id before ')' token
   11 | });
      |  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
    int a,b;
   cin >> a >> b;
   cout << a*b << 2(a+b) << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:20: error: expression cannot be used as a function
    6 |    cout << a*b << 2(a+b) << endl;
      |                   ~^~~~~
Language: C++

#include <stdio.h>
int main(void)
    int n,m;
    scanf("%d %d",&n,&m);
    printf("%d\n",n+m);
    return 0;
}

Compiler output:
a.cc:3:5: error: expected initializer before 'int'
    3 |     int n,m;
      |     ^~~
a.cc:4:10: error: expected constructor, destructor, or type conversion before '(' token
    4 |     scanf("%d %d",&n,&m);
      |          ^
a.cc:5:11: error: expected constructor, destructor, or type conversion before '(' token
    5 |     printf("%d\n",n+m);
      |           ^
a.cc:6:5: error: expected unqualified-id before 'return'
    6 |     return 0;
      |     ^~~~~~
a.cc:7:1: error: expected declaration before '}' token
    7 | }
      | ^
Language: C++

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

Compiler output:
a.cc:3:5: error: expected initializer before 'int'
    3 |     int n,m;
      |     ^~~
a.cc:4:10: error: expected constructor, destructor, or type conversion before '(' token
    4 |     scanf("%d %d",&n,&m);
      |          ^
a.cc:5:11: error: expected constructor, destructor, or type conversion before '(' token
    5 |     printf("%d\n",n*m);
      |           ^
a.cc:6:5: error: expected unqualified-id before 'return'
    6 |     return 0;
      |     ^~~~~~
a.cc:7:1: error: expected declaration before '}' token
    7 | }
      | ^
Language: C++

#include <stdio.h>
int main(void)
    int n,m;
    scanf("%d %d",&n,&m);
    printf("%d %d\n",n*m,2*n+2*m);
    return 0;
}

Compiler output:
a.cc:3:5: error: expected initializer before 'int'
    3 |     int n,m;
      |     ^~~
a.cc:4:10: error: expected constructor, destructor, or type conversion before '(' token
    4 |     scanf("%d %d",&n,&m);
      |          ^
a.cc:5:11: error: expected constructor, destructor, or type conversion before '(' token
    5 |     printf("%d %d\n",n*m,2*n+2*m);
      |           ^
a.cc:6:5: error: expected unqualified-id before 'return'
    6 |     return 0;
      |     ^~~~~~
a.cc:7:1: error: expected declaration before '}' token
    7 | }
      | ^
Language: C++

#include <stdlib.h>

int main(int argc, char *argv[])
{
    int x, y;
    int area, len;

    scanf("%d %d", &x, &y);
    printf("%d %d\r\n", area * len, (area * 2) + (len * 2));

    return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:8:5: error: 'scanf' was not declared in this scope
    8 |     scanf("%d %d", &x, &y);
      |     ^~~~~
a.cc:9:5: error: 'printf' was not declared in this scope
    9 |     printf("%d %d\r\n", area * len, (area * 2) + (len * 2));
      |     ^~~~~~
a.cc:2:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
    1 | #include <stdlib.h>
  +++ |+#include <cstdio>
    2 |
Language: C++

#include<iostream>
using namespace std;

int main()
{
    int a,b;
    cin >> a >> b;
    cout << a*b << ' ' << 2(a+b) << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:28: error: expression cannot be used as a function
    8 |     cout << a*b << ' ' << 2(a+b) << endl;
      |                           ~^~~~~
Language: C++

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

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

a=gets.to_i,b=gets.to_i;
p(a*b," ",2*a*b)

Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a=gets.to_i,b=gets.to_i;
      | ^
a.cc:2:2: error: expected constructor, destructor, or type conversion before '(' token
    2 | p(a*b," ",2*a*b)
      |  ^
Language: C++

#include <iostream>
using namespace std;

int a,b;

int main(){
  cin >> a >> b;
  cout << a*b
  cout << " "
  cout << 2*(a*b) << endl;

  return 0;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:8:14: error: expected ';' before 'cout'
    8 |   cout << a*b
      |              ^
      |              ;
    9 |   cout << " "
      |   ~~~~
Language: C++

#include<iostream.
using namespace std;

int main()
{
int a,b;

cin >> a;
cout << " ";
cin >> b;

cout <<a*b << 2(a+b) << endl;

return 0;
}

Compiler output:
a.cc:1:19: error: missing terminating > character
    1 | #include<iostream.
      |                   ^
a.cc:1:9: fatal error: iostream.: No such file or directory
    1 | #include<iostream.
      |         ^
compilation terminated.
Language: C++

#include<iostream.
using namespace std;
 
int main()
{
int a,b;
 
cin >> a;
cout << " ";
cin >> b;
 
cout <<a*b << " " << 2(a+b) << endl;
 
return 0;
}

Compiler output:
a.cc:1:19: error: missing terminating > character
    1 | #include<iostream.
      |                   ^
a.cc:1:9: fatal error: iostream.: No such file or directory
    1 | #include<iostream.
      |         ^
compilation terminated.
Language: C++

#include <stdio.h>

int main(void){

int a=0
int b=0
scanf("%d %d",&a,&b);
printf("%d %d\n",a*b,2*a+2*b)
    return 0; // ???????????¨??±????????????
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:1: error: expected ',' or ';' before 'int'
    6 | int b=0
      | ^~~
a.cc:8:20: error: 'b' was not declared in this scope
    8 | printf("%d %d\n",a*b,2*a+2*b)
      |                    ^
Language: C++

include<iostream>

using namespace std;

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

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:7:4: error: 'cin' was not declared in this scope
    7 |    cin >> a;
      |    ^~~
a.cc:9:4: error: 'cout' was not declared in this scope
    9 |    cout << a*b << endl;
      |    ^~~~
a.cc:9:19: error: 'endl' was not declared in this scope
    9 |    cout << a*b << endl;
      |                   ^~~~
Language: C++

include <iostream>
??
using namespace std;
??
int main(){
??????int a,b;
??????cin >> a;
??????cin >> b;
??????cout << a*b << endl;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
a.cc:4:1: error: expected unqualified-id before '?' token
    4 | ??
      | ^
Language: C++

include <iostream>
??
using namespace std;
??
int main(){
   int a,b;
   cin >> a;
   cin >> b;
   cout << a*b << endl;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
a.cc:4:1: error: expected unqualified-id before '?' token
    4 | ??
      | ^
Language: C++

include <iostream>

using namespace std;

int main(){
   int a,b;
   cin >> a;
   cin >> b;
   cout << a*b << " " << a*2+b*2 << endl;
   return 0;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:7:4: error: 'cin' was not declared in this scope
    7 |    cin >> a;
      |    ^~~
a.cc:9:4: error: 'cout' was not declared in this scope
    9 |    cout << a*b << " " << a*2+b*2 << endl;
      |    ^~~~
a.cc:9:37: error: 'endl' was not declared in this scope
    9 |    cout << a*b << " " << a*2+b*2 << endl;
      |                                     ^~~~
Language: C++

#include <iostream>
??
using namespace std;
??
int main(){
??????int a,b;
??????cin >> a;
??????cin >> b;
??????cout << a*b << " " << a*2+b*2 << endl;
??????return 0;
}

Compiler output:
a.cc:2:1: error: expected unqualified-id before '?' token
    2 | ??
      | ^
a.cc:4:1: error: expected unqualified-id before '?' token
    4 | ??
      | ^
Language: C++

#include <iostream>
int main(){

int a,b;
cin>>a>>b;
cout<<a*b<<(a+b)*2<<endl;
return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:1: 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:6:1: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 | cout<<a*b<<(a+b)*2<<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:6:21: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 | cout<<a*b<<(a+b)*2<<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 <cstdio
int main()
{
int a,b,S,L;
S=a*b;
L=(a+b)*2;
printf("%d %d",S,L);
return 0;
}

Compiler output:
a.cc:1:17: error: missing terminating > character
    1 | #include <cstdio
      |                 ^
Language: C++

#include <cstdio>
int main()
{
int a,b,S,L;
scanf("%d%d",&a,&b);
S=a*b;
L=(a+b)*2;
printf("%d %d"\n,S,L);
return 0;
}

Compiler output:
a.cc:8:15: error: stray '\' in program
    8 | printf("%d %d"\n,S,L);
      |               ^
a.cc: In function 'int main()':
a.cc:8:15: error: expected ')' before 'n'
    8 | printf("%d %d"\n,S,L);
      |       ~       ^~
      |               )
Language: C++

int main(){
    int a,b;
    cin>>a;
    cin>>b;
    
    cout<<a*b<<" "<<2*(a+b)<<endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin>>a;
      |     ^~~
a.cc:6:5: error: 'cout' was not declared in this scope
    6 |     cout<<a*b<<" "<<2*(a+b)<<endl;
      |     ^~~~
a.cc:6:30: error: 'endl' was not declared in this scope
    6 |     cout<<a*b<<" "<<2*(a+b)<<endl;
      |                              ^~~~
Language: C++

#include <iostream>
using namespace std;
int main()
{
int a,b;

1 <=a;
b <-100;

cin>>a;
cout<<" ";
cin>>b;

coot << a*b << " " << 2*a+2*b << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:1: error: 'coot' was not declared in this scope
   14 | coot << a*b << " " << 2*a+2*b << endl;
      | ^~~~
Language: C++

#include <iostream>
using namespace std;

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

    cout << a * b << " " << 2 * (a + b) << endl;
 
    return 0:
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:13: error: expected ';' before ':' token
   10 |     return 0:
      |             ^
      |             ;
a.cc:10:13: error: expected primary-expression before ':' token
Language: C++

#include<iostream>
using namespace std

int main()
{
    int a, b;

    cin >> a >> b;

    cout << a * b << "" << 2 * (a + b) << endl
}

Compiler output:
a.cc:2:20: error: expected ';' before 'int'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | 
    4 | int main()
      | ~~~                 
a.cc: In function 'int main()':
a.cc:10:47: error: expected ';' before '}' token
   10 |     cout << a * b << "" << 2 * (a + b) << endl
      |                                               ^
      |                                               ;
   11 | }
      | ~
Language: C++

#include<iostream>
using namespace std

int main()
{
    int a, b;
    int area, length;

    cin >> a >> b;

    area = a * b;
    length = 2 * (a + b);
    cout << area << "" << length << endl
}

Compiler output:
a.cc:2:20: error: expected ';' before 'int'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | 
    4 | int main()
      | ~~~                 
a.cc: In function 'int main()':
a.cc:13:41: error: expected ';' before '}' token
   13 |     cout << area << "" << length << endl
      |                                         ^
      |                                         ;
   14 | }
      | ~
Language: C++

#include<iostream>
using namespace std
 
main()
{
    int a, b;
    int area, length;
 
    cin >> a >> b;
 
    area = a * b;
    length = 2 * (a + b);
    cout << area << "" << length << endl
}

Compiler output:
a.cc:2:20: error: expected ';' before 'main'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | 
    4 | main()
      | ~~~~                
a.cc:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    4 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:13:41: error: expected ';' before '}' token
   13 |     cout << area << "" << length << endl
      |                                         ^
      |                                         ;
   14 | }
      | ~
Language: C++

#include<iostream>
using namespace std

int main()
{
    int a, b;
    int area, length;

    cin >> a >> b;

    area = a * b;
    length = 2 * (a + b);
    cout << area << "" << length << endl;
}

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

#include<iostream>
using namespace std

main()
{
    int a, b;
    int area, length;

    cin >> a >> b;

    area = a * b;
    length = 2 * (a + b);
    cout << area << "" << length << endl;
}

Compiler output:
a.cc:2:20: error: expected ';' before 'main'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | 
    4 | main()
      | ~~~~                
a.cc:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    4 | main()
      | ^~~~
Language: C++

#include<iostream>
using namespace std;
 
main(){
   int a, b;
   int area, length;
 
    cin >> a >> b;
 
   area = a * b;
   length =2*( a + b);
 
    cout << area << " " << length << endl;
    
 
 

Compiler output:
a.cc:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    4 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:13:43: error: expected '}' at end of input
   13 |     cout << area << " " << length << endl;
      |                                           ^
a.cc:4:7: note: to match this '{'
    4 | main(){
      |       ^
Language: C++

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

int main(){
    int a,b;
    cin >> a >> b;
    cout << a * b << 2(a + b) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:23: error: expression cannot be used as a function
    7 |     cout << a * b << 2(a + b) << endl;
      |                      ~^~~~~~~
Language: C++

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

int main(){
    int a,b;
    cin >> a >> b;
    cout << a * b << " " << 2(a + b) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:30: error: expression cannot be used as a function
    7 |     cout << a * b << " " << 2(a + b) << endl;
      |                             ~^~~~~~~
Language: C++

#include<stdio.h>
 
int main(void)
{
    int a, b, x, y;
    scanf("%d %d", &a, &b);
    x = a * b;
    y = 2 * (a + b);
    printf("%d %d\n", x, y)
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:28: error: expected ';' before 'return'
    9 |     printf("%d %d\n", x, y)
      |                            ^
      |                            ;
   10 |     return 0;
      |     ~~~~~~
Language: C++

#include <iostream>
using namespace std;

int main(){
	int a,b;
	cin  >> a >> b;
	cout << a*b << " " << 2(a+b) << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:32: error: expression cannot be used as a function
    7 |         cout << a*b << " " << 2(a+b) << endl;
      |                               ~^~~~~
Language: C++

#include <iostream>
using namespace	std;

int main()
{
  int a,b;
  cin >> a,b;
  cout << a*b ,	2*a+2*b	<< endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:25: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
    8 |   cout << a*b , 2*a+2*b << endl;
      |                 ~~~~~~~~^~~~~~~
Language: C++

#include <cstdio>
using namespace std;
int main() {
	int a, b;
	int s, l;

	cin >> a >> b;

	s = a*b;
	l = 2 * (a + b);

	cout << s <<" "<< l << endl;

	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'cin' was not declared in this scope
    7 |         cin >> a >> b;
      |         ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <cstdio>
  +++ |+#include <iostream>
    2 | using namespace std;
a.cc:12:9: error: 'cout' was not declared in this scope
   12 |         cout << s <<" "<< l << endl;
      |         ^~~~
a.cc:12:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:12:32: error: 'endl' was not declared in this scope
   12 |         cout << s <<" "<< l << endl;
      |                                ^~~~
a.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    1 | #include <cstdio>
  +++ |+#include <ostream>
    2 | using namespace std;
Language: C++

import java.util.Scanner;

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

		if(1<=a && b <= 100){
			int area = a*b;
			int perimeter = (a+b)*2;
			System.out.print(area + " " + perimeter);
		}

		sc.close();
	}
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: C++

    using System;
     
    public class Test
    {
    	public static void Main()
    	{
    	      ???int tate = 0, yoko = 0, menseki = 0, syu = 0;
                string[] data = Console.ReadLine().Split();//????????\?????????
                tate = int.Parse(data[0]);
                yoko = int.Parse(data[1]);
                menseki = tate * yoko;//??¢???????±?????????????
                syu = (tate * 2) + (yoko * 2);//??¨?????????????±?????????????
                Console.WriteLine("{0},{1}", menseki, syu);
    	}
    }

Compiler output:
a.cc:1:11: error: expected nested-name-specifier before 'System'
    1 |     using System;
      |           ^~~~~~
a.cc:3:5: error: expected unqualified-id before 'public'
    3 |     public class Test
      |     ^~~~~~
Language: C++

#include<iostream>
using namespace std;

int main(){
	
	int a, b, L, S;
	cin >> a >> b;

	S = a * b;
	L = 2a + 2b;

	cout << S << L << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:13: error: unable to find numeric literal operator 'operator""a'
   10 |         L = 2a + 2b;
      |             ^~
a.cc:10:18: error: unable to find numeric literal operator 'operator""b'
   10 |         L = 2a + 2b;
      |                  ^~
Language: C++

main() {
int a,b;
scanf("%d%d",&a,&b);
if(a>=1 && b<=100) {
a=a*b;
}
printf("%d\n",a);
return 0;
}

Compiler output:
a.cc:1:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    1 | main() {
      | ^~~~
a.cc: In function 'int main()':
a.cc:3:1: error: 'scanf' was not declared in this scope
    3 | scanf("%d%d",&a,&b);
      | ^~~~~
a.cc:7:1: error: 'printf' was not declared in this scope
    7 | printf("%d\n",a);
      | ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | main() {
Language: C++

int main(){
int a, b, x, y;
scanf("%d", &a, &b);
x = a+a+b+b;
y = a*b;
printf("%d%d\n", x, y);
return 0;	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:1: error: 'scanf' was not declared in this scope
    3 | scanf("%d", &a, &b);
      | ^~~~~
a.cc:6:1: error: 'printf' was not declared in this scope
    6 | printf("%d%d\n", x, y);
      | ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int main(){
Language: C++

int main(){
int a, b, x, y;
scanf("%d", &a, &b);
printf("%d%d\n", a*b, a+a+b+b);
return 0;	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:1: error: 'scanf' was not declared in this scope
    3 | scanf("%d", &a, &b);
      | ^~~~~
a.cc:4:1: error: 'printf' was not declared in this scope
    4 | printf("%d%d\n", a*b, a+a+b+b);
      | ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int main(){
Language: C++

int main(){
int a,b,x,y;
scanf("%d%d",&a,&b);
if(a>=1 && a<=100 && b>=1 && b<=100){
x=a*b;
y=2*(a+b);
}
printf("%d %d\n", x, y);
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:1: error: 'scanf' was not declared in this scope
    3 | scanf("%d%d",&a,&b);
      | ^~~~~
a.cc:8:1: error: 'printf' was not declared in this scope
    8 | printf("%d %d\n", x, y);
      | ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int main(){
Language: C++


int main() {
	int a, b;
	cin >> a >> b;
	cout << 2 * a + 2 * b << " " << a*b << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: 'cin' was not declared in this scope
    4 |         cin >> a >> b;
      |         ^~~
a.cc:5:9: error: 'cout' was not declared in this scope
    5 |         cout << 2 * a + 2 * b << " " << a*b << endl;
      |         ^~~~
a.cc:5:48: error: 'endl' was not declared in this scope
    5 |         cout << 2 * a + 2 * b << " " << a*b << endl;
      |                                                ^~~~
Language: C++

#include?? <iostream>
using namespace std;
??
??
??
int main() {
????????int a, b;
????????cin >> a >> b;
????????cout << a * b << " " << 2*a+2*b << endl;
????????return 0;
}

Compiler output:
a.cc:1:9: error: #include expects "FILENAME" or <FILENAME>
    1 | #include?? <iostream>
      |         ^
a.cc:3:1: error: expected unqualified-id before '?' token
    3 | ??
      | ^
Language: C++

#include <iostream>
using namespace std;

int main() {
  int a, b;
  cin >> a >> b;
  cout << a * b << " " << 2 * (a + b) << endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:7:47: error: expected '}' at end of input
    7 |   cout << a * b << " " << 2 * (a + b) << endl;
      |                                               ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include<iostream>
using namespace std;

int main()
{
   int a,b;
   cin>>a>>b;
   cout<<a*b<<\n;
   cout<<2*(a+b)<<\n;
   return 0;
}

Compiler output:
a.cc:8:15: error: stray '\' in program
    8 |    cout<<a*b<<\n;
      |               ^
a.cc:9:19: error: stray '\' in program
    9 |    cout<<2*(a+b)<<\n;
      |                   ^
a.cc: In function 'int main()':
a.cc:8:16: error: 'n' was not declared in this scope
    8 |    cout<<a*b<<\n;
      |                ^
Language: C++

#include <stdio.h>

int main (void)
{

int a;
int b;

scanf("%d %d", &a, %b);

printf("%d\n", a * b \t 2 * (a + b));

return 0;
}

Compiler output:
a.cc:11:22: error: stray '\' in program
   11 | printf("%d\n", a * b \t 2 * (a + b));
      |                      ^
a.cc: In function 'int main()':
a.cc:9:20: error: expected primary-expression before '%' token
    9 | scanf("%d %d", &a, %b);
      |                    ^
a.cc:11:21: error: expected ')' before 't'
   11 | printf("%d\n", a * b \t 2 * (a + b));
      |       ~             ^ ~
      |                     )
Language: C++

#include <stdio.h>

int main (void)
{

int a;
int b;

scanf("%d %d", &a, %b);

printf("%d\n", a * b \t 2 * (a + b)\n);

return 0;
}

Compiler output:
a.cc:11:22: error: stray '\' in program
   11 | printf("%d\n", a * b \t 2 * (a + b)\n);
      |                      ^
a.cc:11:36: error: stray '\' in program
   11 | printf("%d\n", a * b \t 2 * (a + b)\n);
      |                                    ^
a.cc: In function 'int main()':
a.cc:9:20: error: expected primary-expression before '%' token
    9 | scanf("%d %d", &a, %b);
      |                    ^
a.cc:11:21: error: expected ')' before 't'
   11 | printf("%d\n", a * b \t 2 * (a + b)\n);
      |       ~             ^ ~
      |                     )
Language: C++

#include<iostream>
using namespace std;

int main(){
 int a;
 int b;
 int x;
 int y;
 cin >> a >> b;

 x=a*b;
 y=a*2+b*2;

 cout << x y <<endl;

 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:11: error: expected ';' before 'y'
   14 |  cout << x y <<endl;
      |           ^~
      |           ;
Language: C++

#include <iostream>
using namespace std;
   
int main()
{
  int x=0;
  cin>>x>>y;
  
  cout<<x*y<<2*(x+y)<<"\n";
     
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: 'y' was not declared in this scope
    7 |   cin>>x>>y;
      |           ^
Language: C++

#include <iostream>
using namespace std;
        
int main()
{
  int x=0;
  int y=0;
  cin>>x>>y;
       
  cout<<x*y<<" "<<2*(x+y)endl;
          
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:26: error: expected ';' before 'endl'
   10 |   cout<<x*y<<" "<<2*(x+y)endl;
      |                          ^~~~
      |                          ;
Language: C++

#include<iostream>
using namespace std;
int main(){
int a,b;
cin>>a>>b;
cout<<a*b<< <<(a+b)*2<<'\n';
return 0;


}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:13: error: expected primary-expression before '<<' token
    6 | cout<<a*b<< <<(a+b)*2<<'\n';
      |             ^~
Language: C++

#include<cstdio>

 int main void(){
   int a,b;
   scanf("%d%d",&a,&b);
   printf("%d %d",a*b,2*(a+b));
  return 0;
 }

Compiler output:
a.cc:3:11: error: expected initializer before 'void'
    3 |  int main void(){
      |           ^~~~
Language: C++

a, b = gets.split(' ').map(&:to_i)
area = a * b
perimeter = (a + b) * 2
puts "#{area} #{perimeter}"

Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a, b = gets.split(' ').map(&:to_i)
      | ^
Language: C++

#include<stdio.h>
int main(){
int a=3;
int b=5;
int c;
int d;
scanf("%d %d",&a &b);
printf("%d %d\n",c d);
c=a*b;
d=2*(a+b);
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: invalid operands of types 'int*' and 'int' to binary 'operator&'
    7 | scanf("%d %d",&a &b);
      |               ~~ ^~
      |               |   |
      |               |   int
      |               int*
a.cc:8:19: error: expected ')' before 'd'
    8 | printf("%d %d\n",c d);
      |       ~           ^~
      |                   )
Language: C++

#include<stdio.h>
int main(){
int a=0;
int b=0;
int c;
int d;
scanf("%d %d",&a &b);
printf("%d %d\n",c d);
c=a*b;
d=2*(a+b);
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: invalid operands of types 'int*' and 'int' to binary 'operator&'
    7 | scanf("%d %d",&a &b);
      |               ~~ ^~
      |               |   |
      |               |   int
      |               int*
a.cc:8:19: error: expected ')' before 'd'
    8 | printf("%d %d\n",c d);
      |       ~           ^~
      |                   )
Language: C++

#include<stdio.h>
int main(){
int a=0;
int b=0;
int c;
int d;
scanf("%d %d",&a,&b);
printf("%d %d\n",c d);
c=a*b;
d=2*(a+b);
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:19: error: expected ')' before 'd'
    8 | printf("%d %d\n",c d);
      |       ~           ^~
      |                   )
Language: C++

#include<stdio.h>

int main(void){
int a;
int b;

scanf("%d",&a);
scanf("%d",&b);

if(a<1||b>100)
printf("Too Large");

printf("%d %d\n"a*b,a*2+b*2);








}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:8: error: unable to find string literal operator 'operator""a' with 'const char [7]', 'long unsigned int' arguments
   13 | printf("%d %d\n"a*b,a*2+b*2);
      |        ^~~~~~~~~~
Language: C++

using System;

namespace AizuOnline
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            var x = Console.ReadLine().Split(' ');
            Console.WriteLine(Convert.ToInt32(x[0]) * Convert.ToInt32(x[1]));
        }
    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:5:5: error: 'internal' does not name a type
    5 |     internal class Program
      |     ^~~~~~~~
Language: C++

using System;

namespace AizuOnline
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            var x = Console.ReadLine().Split(' ');
            Console.WriteLine(Convert.ToInt32(x[0]) * Convert.ToInt32(x[1]));
            Console.ReadLine();
        }
    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:5:5: error: 'internal' does not name a type
    5 |     internal class Program
      |     ^~~~~~~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
	int a,b,c,d;
	cin >> a >> b;
	c=a*b;
	d=2(a+b);
	cout << c <<" "<< d;
return 0;}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:12: error: expression cannot be used as a function
    8 |         d=2(a+b);
      |           ~^~~~~
Language: C++

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

int main() {
	int a, b;
	scanf_s("%d", &a);
	scanf_s("%d", &b);

	printf("%d", a * b);
	printf(" ");
	printf("%d", 2 * a + 2 * b);

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    7 |         scanf_s("%d", &a);
      |         ^~~~~~~
      |         scanf
Language: C++

#include<iostream>
#include<algorithm>
#include<stdio.h>
using namespace std;

int main() {
	int a, b;
	scanf_s("%d", &a);
	scanf_s("%d", &b);

	printf("%d", a * b);
	printf(" ");
	printf("%d", 2 * a + 2 * b);

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    8 |         scanf_s("%d", &a);
      |         ^~~~~~~
      |         scanf
Language: C++

#include<iostream>
#include<stdio.h>

int main() {
	int a, b;
	scanf_s("%d", &a);
	scanf_s("%d", &b);

	printf("%d", a * b);
	printf(" ");
	printf("%d", 2 * a + 2 * b);

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    6 |         scanf_s("%d", &a);
      |         ^~~~~~~
      |         scanf
Language: C++

#include "cstdio"

int main(){
int a,b;
scanf("%d %d",&a,&b);
printf("%d %d\n",ab,2*a+2*b);
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:18: error: 'ab' was not declared in this scope; did you mean 'b'?
    6 | printf("%d %d\n",ab,2*a+2*b);
      |                  ^~
      |                  b
Language: C++

#include <stdio.h>
int main(){
 int x, y;
scanf("%d%d", &x, &y);
prinf("%d %d\n", x*y,  x*2 + y*2);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:1: error: 'prinf' was not declared in this scope; did you mean 'printf'?
    5 | prinf("%d %d\n", x*y,  x*2 + y*2);
      | ^~~~~
      | printf
Language: C++

#include <stdio.h>
int main(){
 int x, y;
scanf("%d%d", &x, &y);
prinf("%d %d\n", x*y,  x*x + y*y);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:1: error: 'prinf' was not declared in this scope; did you mean 'printf'?
    5 | prinf("%d %d\n", x*y,  x*x + y*y);
      | ^~~~~
      | printf
Language: C++

x, y = raw_input().split(' ')
print '{} {}'.format(x*y, (x+y)*2)

Compiler output:
a.cc:2:7: warning: multi-character literal with 5 characters exceeds 'int' size of 4 bytes
    2 | print '{} {}'.format(x*y, (x+y)*2)
      |       ^~~~~~~
a.cc:1:1: error: 'x' does not name a type
    1 | x, y = raw_input().split(' ')
      | ^
Language: C++

#include<iostream>
using namespace std;
int main(){
	int a;
	int b;
	cin >> a;
	cin >> b;
	cout << a*b <<" "<<2a+2b<< endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:28: error: unable to find numeric literal operator 'operator""a'
    8 |         cout << a*b <<" "<<2a+2b<< endl;
      |                            ^~
a.cc:8:31: error: unable to find numeric literal operator 'operator""b'
    8 |         cout << a*b <<" "<<2a+2b<< endl;
      |                               ^~