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

#include <iostream>
using namespace std;

int main() {
	int a,b;
	cin>>a>>b;
	
	if(a%2==1)&&(b%2==1){
		cout<<"Odd"<<endl;
		
	}
	else{
		cout<<"Even"<<endl;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:21: error: expected identifier before '(' token
    8 |         if(a%2==1)&&(b%2==1){
      |                     ^
Language: Java

import java.util.Scanner;

public class ABC086A {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner stdIn = new Scanner(System.in);

		int a = stdIn.nextInt();
		int b = stdIn.nextInt();

		if ((a * b) % 2 == 0) {
			System.out.println("even");
		}else if ((a * b) % 2 == 1) {
			System.out.println("odd");
		}
	}

}


Compiler output:
Main.java:3: error: class ABC086A is public, should be declared in a file named ABC086A.java
public class ABC086A {
       ^
1 error
Language: C++

import java.util.Scanner;

public class ABC086A {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner stdIn = new Scanner(System.in);

		int a = stdIn.nextInt();
		int b = stdIn.nextInt();

		if ((a * b) % 2 == 0) {
			System.out.println("even");
		}else if ((a * b) % 2 == 1) {
			System.out.println("odd");
		}
	}

}


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 ABC086A {
      | ^~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long
int main()
{
ll n,h;
cin>>n>>h;
if((a*b)%2==0) cout<<"Even";
else cout<<"Odd";
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'a' was not declared in this scope
    8 | if((a*b)%2==0) cout<<"Even";
      |     ^
a.cc:8:7: error: 'b' was not declared in this scope
    8 | if((a*b)%2==0) cout<<"Even";
      |       ^
Language: C++

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

int main() {
  int a, b, c, d;
  cin >> a >> b;
  
  if (a == 2 * c !! b == 2 * d) {
    cout << "Even" << endl;
  }
  else {
    cout << "Odd" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:17: error: expected ')' before '!' token
    8 |   if (a == 2 * c !! b == 2 * d) {
      |      ~          ^~
      |                 )
Language: C++

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

int main() {
  int a, b, c, d;
  cin >> a >> b;
  
  if (a = 2 * c!!b = 2 * d) {
    cout << "Even" << endl;
  }
  else {
    cout << "Odd" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:16: error: expected ')' before '!' token
    8 |   if (a = 2 * c!!b = 2 * d) {
      |      ~         ^
      |                )
Language: C++

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

int main() {
  int a, b, c, d;
  cin >> a >> b;
  
  if () {a = 2 * c!!b = 2 * d) {
    cout << "Even" << endl;
  }
  else {
    cout << "Odd" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:7: error: expected primary-expression before ')' token
    8 |   if () {a = 2 * c!!b = 2 * d) {
      |       ^
a.cc:8:19: error: expected ';' before '!' token
    8 |   if () {a = 2 * c!!b = 2 * d) {
      |                   ^
      |                   ;
a.cc:11:3: error: expected '}' before 'else'
   11 |   else {
      |   ^~~~
a.cc:8:9: note: to match this '{'
    8 |   if () {a = 2 * c!!b = 2 * d) {
      |         ^
Language: C++

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

int main() {
  int a, b, c;
  cin >> a >> b;
  
  if ((a * b)/2 = c) {
    cout << "Even" << endl;
  }
  else {
    cout << "Odd" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:14: error: lvalue required as left operand of assignment
    8 |   if ((a * b)/2 = c) {
      |       ~~~~~~~^~
Language: C++

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

int main() {
  int a, b, c;
  cin >> a >> b;;
  
  if (a * b = 2 * c) {
    cout << "Even" << endl;
  }
  else {
    cout << "Odd" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: lvalue required as left operand of assignment
    8 |   if (a * b = 2 * c) {
      |       ~~^~~
Language: C++

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

int main() {
  int a, b, c;
  cin >> a;
  cin >> b;
  
  if (a * b = 2 * c) {
    cout << "Even" << endl;
  }
  else {
    cout << "Odd" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: lvalue required as left operand of assignment
    9 |   if (a * b = 2 * c) {
      |       ~~^~~
Language: C++

(defn solve [a b]
    (if(zero? (rem (* a b) 2))
        "Even"
        "Odd"
    )
)


(println (solve (read) (read)))

Compiler output:
a.cc:1:6: error: expected ')' before 'solve'
    1 | (defn solve [a b]
      | ~    ^~~~~~
      |      )
Language: C++

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

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

  if ((a*b)%2 == 1) {
    cout << "Odd" << endl;
  }
  else{
    cout << "Even" << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:2: error: expected '}' at end of input
   13 | }
      |  ^
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,x;
  cin>>a>>b;
  x=a*b%2
    if(x==1){
      cout<<"Odd"<<endl;
    }
  else{
    cout<<"Even"<<endl;
  }
}
 

Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: expected ';' before 'if'
    6 |   x=a*b%2
      |          ^
      |          ;
    7 |     if(x==1){
      |     ~~    
a.cc:10:3: error: 'else' without a previous 'if'
   10 |   else{
      |   ^~~~
Language: C++

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

int main() {
  int a,b;
  cin >> a >> b;
  if (a*b % 2 == 1) cout << Odd;
  else cout << Even;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:29: error: 'Odd' was not declared in this scope
    7 |   if (a*b % 2 == 1) cout << Odd;
      |                             ^~~
a.cc:8:16: error: 'Even' was not declared in this scope
    8 |   else cout << Even;
      |                ^~~~
Language: C++

#include<iostream>
using namespace std;
int main(){
    cin>>a >> b;
    if((a*b)%2==0){
        cout<<"Even";
    }else{
        cout<<"Odd";
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:10: error: 'a' was not declared in this scope
    4 |     cin>>a >> b;
      |          ^
a.cc:4:15: error: 'b' was not declared in this scope
    4 |     cin>>a >> b;
      |               ^
Language: C++

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

int main() {
  int A, B;
  cin >> A >> op >> B;

  if (A%2 && B%2) {
    cout << "Odd" << endl;
  }
  else	cout<<"Even"<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:15: error: 'op' was not declared in this scope
    6 |   cin >> A >> op >> B;
      |               ^~
Language: C++

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

int main() {
  cin >> a >> b;
  if (a * b % 2 == 1)
    cout << "Odd" << endl;
  else
    cout << "Even" << endl;
}

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


Compiler output:
a.cc: In function 'int main()':
a.cc:5:11: error: expected primary-expression before '%' token
    5 |     scanf(%d %d,&a,&b);
      |           ^
a.cc:5:12: error: 'd' was not declared in this scope
    5 |     scanf(%d %d,&a,&b);
      |            ^
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:5:11: error: expected primary-expression before '%' token
    5 |     scanf(% d % d, &a, &b);
      |           ^
a.cc:5:13: error: 'd' was not declared in this scope
    5 |     scanf(% d % d, &a, &b);
      |             ^
Language: C++

#include<stdio.h>
int main()
{
int a,b;
if(a*b%2==1){
printf("Odd");
}
else{
printf("Even");
}
return=0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:7: error: expected primary-expression before '=' token
   11 | return=0;
      |       ^
Language: C++

#include<stdio.h>
int main()
{
int a,b;
if(a*bd%2==1){
printf("Odd");
}
else{
printf("Even");
}
return=0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:6: error: 'bd' was not declared in this scope; did you mean 'b'?
    5 | if(a*bd%2==1){
      |      ^~
      |      b
a.cc:11:7: error: expected primary-expression before '=' token
   11 | return=0;
      |       ^
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:5:4: error: expected primary-expression before '%' token
    5 | if(%d*%d%2==1,a,b){
      |    ^
a.cc:5:5: error: 'd' was not declared in this scope
    5 | if(%d*%d%2==1,a,b){
      |     ^
a.cc:5:7: error: expected primary-expression before '%' token
    5 | if(%d*%d%2==1,a,b){
      |       ^
a.cc:11:7: error: expected primary-expression before '=' token
   11 | return=0;
      |       ^
Language: C++

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


Compiler output:
a.cc:2:1: error: 'main' does not name a type
    2 | main int()
      | ^~~~
Language: C++

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


Compiler output:
a.cc:2:1: error: 'main' does not name a type
    2 | main int(){
      | ^~~~
Language: C++

#include<stdio.h>
int main(){
int a,b;
if(a*b%2==1){
printf("Odd");
}
else{
printf("Even");
}
return=0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:7: error: expected primary-expression before '=' token
   10 | return=0;
      |       ^
Language: C++

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

int main(){
  int a,b,c;
  cin >> a >> b;
  c = (a * b) % 2;
  
  if (c == o){
    cout << c << "Even" << endl;
  }else{
    cout << c << "Odd" << endl;
  }
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:12: error: 'o' was not declared in this scope
   10 |   if (c == o){
      |            ^
Language: C++

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

	cin >>a>>b;

    x = (a*b) % 2;

	if { 
		x != 0
	  
			cout <<"odd" <<endl;

	}else  {
			cout <<"even"<<endl;

	
}

	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:12: error: expected '(' before '{' token
   12 |         if {
      |            ^
      |            (
a.cc:17:10: error: 'else' without a previous 'if'
   17 |         }else  {
      |          ^~~~
Language: C++

#inlcude <string>
#include <iostream>
using namespace std;

int main(){
  int a,b,c;
  cin >> a >> b;
  c = (a * b) % 2;
  
  if (c == o){
    cout << c << "Even" << endl;
  }else{
    cout << c << "Odd" << endl;
  }
  
  return 0;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    1 | #inlcude <string>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:10:12: error: 'o' was not declared in this scope
   10 |   if (c == o){
      |            ^
Language: C++

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

using namespace std;

int main() {
	int a, b;
	cin >> a;
	cin >> b;
	if (0 == a * b % 2) {
		cout << "Even" << endl;
	}
	else {
		cout << "Odd" << endl;
	}
}



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

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

using namespace std;

int main() {
	int a, b;
	cin >> a;
	cin >> b;
	if (0 == a * b % 2) {
		cout << "Even" << endl;
	}
	else {
		cout << "Odd" << endl;
	}
}


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

#include "stdafx.h"
#include<iostream>
using namespace std;
int main()
{
	int s;
	int t;
	cin >> s >> t;
	if (s % 2 == 0 || t % 2 == 0) {
		cout << "Even" << endl;
	}else {
		cout << "Odd" << endl;
	}

    return 0;
}


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

#include<stdafx.h>
#include<iostream>
#include<string>
using namespace std;
int main(){
int a,b;
cin>>a>>b;
if((a%2!=0)&&(b%2!=0)){
	cout<<"Even";
}else{
	cout<<"Odd";
}
return 0;
}

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:9:10: error: expected primary-expression before '!=' token
    9 |   if(a*b%!=0){
      |          ^~
Language: C++

#include <iostream>
using namespace std;

int main()
{
	int a, b;
	cin >> a >> b;
	if (a * b % == 0) {
      cout << "Even" << endl; 
   		 }else { cout << "Odd" << endl; 
          }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:21: error: expected primary-expression before '==' token
    8 |         if (a * b % == 0) {
      |                     ^~
Language: C++

#include<iostream>
using namespace std;
int main(){
  int a,b,c;
  cin >> a >> b >> c;
  cout >> ((10b+c)%4? "No":"Yes") << "\n";
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:13: error: unable to find numeric literal operator 'operator""b'
    6 |   cout >> ((10b+c)%4? "No":"Yes") << "\n";
      |             ^~~
Language: C++

#include<iostream>
using namespace std;
int main(){
  int a,b;
  cin >> a >> b;
  if(((a*b)%2) == 0)
    cout << "Even" << "\n";
  else
    cout << "Odd << "\n";
  return 0;
}

Compiler output:
a.cc:9:22: error: stray '\' in program
    9 |     cout << "Odd << "\n";
      |                      ^
a.cc:9:24: warning: missing terminating " character
    9 |     cout << "Odd << "\n";
      |                        ^
a.cc:9:24: error: missing terminating " character
    9 |     cout << "Odd << "\n";
      |                        ^~
a.cc: In function 'int main()':
a.cc:9:22: error: expected ';' before 'n'
    9 |     cout << "Odd << "\n";
      |                      ^~
      |                      ;
Language: C++

include<stdio.h>

int main(void)
{
   int a,b;

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

   if((a*b)%2==0) printf("Even\n");
   else  printf("Odd\n");

   return 0;
}


Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<stdio.h>
      | ^~~~~~~
Language: Java

import java.util.Scanner;
import java.io.File;
import java.io.FileNotFoundException;



public class Main{
	public static void main(String[] args){
		try{
			Scanner sc = new Scanner(System.in);
			Integer num1 = Integer.parseInt(sc.next());
			Integer num2 = Integer.parseInt(sc.next());
			
			Integer ans = num1 * num2;
			
			if (ans % 2 == 0){
				System.out.println("Even");
			} else {
				System.out.println("Odd");
			}
		} catch (FileNotFoundException e){
			System.out.println(e);
		}
	}
}



Compiler output:
Main.java:21: error: exception FileNotFoundException is never thrown in body of corresponding try statement
		} catch (FileNotFoundException e){
		  ^
1 error
Language: Java

import java.util.*;
public class Exam {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
	
    if ((a + b) % 2 == 0) {
      System.out.println("Even");
    }
    else {
      System.out.println("Odd");
    }
  }
}


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

import java.util.*;
public class Exam {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
	
    if ((a + b) % 2 == 0) {
      System.out.println("Even");
    }
    else {
      System.out.println("Odd");
  }
}


Compiler output:
Main.java:14: error: reached end of file while parsing
}
 ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int a, b, c;
  cin >> a >> b;
  c = a * b
  if (c % 2 == 0) {
    cout << "even" << endl;
  } else {
    cout << "odd" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: expected ';' before 'if'
    7 |   c = a * b
      |            ^
      |            ;
    8 |   if (c % 2 == 0) {
      |   ~~        
a.cc:10:5: error: 'else' without a previous 'if'
   10 |   } else {
      |     ^~~~
Language: Java

package A;

import java.util.Scanner;

public class ABC086A {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();

		int c = a * b;

		if (c % 2 == 0) {
			System.out.println("Even");
		} else {
			System.out.println("Odd");
		}
	}
}


Compiler output:
Main.java:5: error: class ABC086A is public, should be declared in a file named ABC086A.java
public class ABC086A {
       ^
1 error
Language: C++

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

   int a,b;

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

   if((a*b)%2=0) printf("Even\n");

   else printf("odd\n");

   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:12: error: lvalue required as left operand of assignment
    9 |    if((a*b)%2=0) printf("Even\n");
      |       ~~~~~^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int num1, num2;
  cin >> num1 >> num2;
  result = num1 * num2;
  if(result % 2 == 0) cout << "Even" << endl;
  else cout << "Odd" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'result' was not declared in this scope
    7 |   result = num1 * num2;
      |   ^~~~~~
Language: C++

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

int main(){
  int num1, num2;
  cin >> num1 >> num2;
  result = num1 * num2;
  if(result % 2 == 0) cout << Even << endl;
  else cout << Odd << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'result' was not declared in this scope
    7 |   result = num1 * num2;
      |   ^~~~~~
a.cc:8:31: error: 'Even' was not declared in this scope
    8 |   if(result % 2 == 0) cout << Even << endl;
      |                               ^~~~
a.cc:9:16: error: 'Odd' was not declared in this scope
    9 |   else cout << Odd << endl;
      |                ^~~
Language: C++

#include <iostream>
 
using namespace std ;

int main() {
  int a , b ;
  cin >> a >> b ;
  if ( a % 2 == 0 || b%2 == 0)
     cout<< "Even"
else 
cout<<"odd" ;
return 0 ; }

Compiler output:
a.cc: In function 'int main()':
a.cc:9:19: error: expected ';' before 'else'
    9 |      cout<< "Even"
      |                   ^
      |                   ;
   10 | else
      | ~~~~
Language: C++

int main()
{
    int a, i;
    
    for(i=0; i<2; i++){
        cin >> a;
        if(a % 2 == 0) {
            cout << "Even" << endl;
            return 0;
        } 
    }
    cout << "Odd" << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'cin' was not declared in this scope
    6 |         cin >> a;
      |         ^~~
a.cc:8:13: error: 'cout' was not declared in this scope
    8 |             cout << "Even" << endl;
      |             ^~~~
a.cc:8:31: error: 'endl' was not declared in this scope
    8 |             cout << "Even" << endl;
      |                               ^~~~
a.cc:12:5: error: 'cout' was not declared in this scope
   12 |     cout << "Odd" << endl;
      |     ^~~~
a.cc:12:22: error: 'endl' was not declared in this scope
   12 |     cout << "Odd" << endl;
      |                      ^~~~
Language: C++

using namespace std;


int main() {
  int a, b;
  cin >> a >> b;
  int c = a * b;
  if (c % 2 == 0) cout << "Even" << endl;
  else cout << "Odd" << endl;
  
}



Compiler output:
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 | using namespace std;
a.cc:8:19: error: 'cout' was not declared in this scope
    8 |   if (c % 2 == 0) cout << "Even" << endl;
      |                   ^~~~
a.cc:8:19: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:8:37: error: 'endl' was not declared in this scope
    8 |   if (c % 2 == 0) cout << "Even" << endl;
      |                                     ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
a.cc:9:8: error: 'cout' was not declared in this scope
    9 |   else cout << "Odd" << endl;
      |        ^~~~
a.cc:9:8: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:9:25: error: 'endl' was not declared in this scope
    9 |   else cout << "Odd" << endl;
      |                         ^~~~
a.cc:9:25: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
Language: C++

using namespace std:


int main() {
  int a, b;
  cin >> a >> b;
  int c = a * b;
  if (c % 2 == 0) cout << "Even" << endl;
  else cout << "Odd" << endl;
  
}



Compiler output:
a.cc:1:20: error: expected ';' before ':' token
    1 | using namespace std:
      |                    ^
      |                    ;
a.cc:1:20: error: expected unqualified-id before ':' token
Language: C++

#include "stdafx.h"
#include <iostream>
#include <string>
using namespace std;

int main()
{
	int a, b, c;

	cin >> a >> b;
	c = a * b;

	if (c % 2 == 0)
		cout << "Even" << endl;
	else
		cout << "Odd" << endl;

    return 0;
}

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

#include <iostream>
using namespace std;

int main()
{
int a,b;
cin >> a >> b;
int c = a*b;
if(c%2 == 0){
cout << "Even"}
else{
cout << "Odd"}
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:15: error: expected ';' before '}' token
   10 | cout << "Even"}
      |               ^
      |               ;
a.cc:12:14: error: expected ';' before '}' token
   12 | cout << "Odd"}
      |              ^
      |              ;
Language: C++

#include <iostream>
using namespace std;

int main()
{
int a,b;
cin >> a >> b;
if(a*b%2==0){
cout << "Odd"}
else{
cout << "Even"}
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:14: error: expected ';' before '}' token
    9 | cout << "Odd"}
      |              ^
      |              ;
a.cc:11:15: error: expected ';' before '}' token
   11 | cout << "Even"}
      |               ^
      |               ;
Language: C++

#include <iostream>
using namespace std;

int main()
{
int a,b;
cin >> a >> b;
if(a*b%2){
cout << "Odd"}
else{
cout << "Even"}
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:14: error: expected ';' before '}' token
    9 | cout << "Odd"}
      |              ^
      |              ;
a.cc:11:15: error: expected ';' before '}' token
   11 | cout << "Even"}
      |               ^
      |               ;
Language: C++


int main() {
    int a, b;
    cin >> a >> b;
    int c = a * b;
    if (c % 2 == 0) cout << "Even" << endl;
    else cout << "Odd" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:5: error: 'cin' was not declared in this scope
    4 |     cin >> a >> b;
      |     ^~~
a.cc:6:21: error: 'cout' was not declared in this scope
    6 |     if (c % 2 == 0) cout << "Even" << endl;
      |                     ^~~~
a.cc:6:39: error: 'endl' was not declared in this scope
    6 |     if (c % 2 == 0) cout << "Even" << endl;
      |                                       ^~~~
a.cc:7:10: error: 'cout' was not declared in this scope
    7 |     else cout << "Odd" << endl;
      |          ^~~~
a.cc:7:27: error: 'endl' was not declared in this scope
    7 |     else cout << "Odd" << endl;
      |                           ^~~~
Language: C++

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

int main(){
  int a,b,c;
  cin >> a >> b;
  c = a*b%2
  if (c == 0){
    cout << "Even" << endl;
  } else {
    cout << "Odd" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: expected ';' before 'if'
    7 |   c = a*b%2
      |            ^
      |            ;
    8 |   if (c == 0){
      |   ~~        
a.cc:10:5: error: 'else' without a previous 'if'
   10 |   } else {
      |     ^~~~
Language: C++

#include<iostream>

int main(){
  int a, b;
  cin >> a >> b;
  if((a*b % 2) == 0) cout << "Even" << endl;
  else cout << "Odd" << endl;

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin >> a >> b;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:6:22: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |   if((a*b % 2) == 0) cout << "Even" << 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:6:40: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 |   if((a*b % 2) == 0) cout << "Even" << 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)
      |     ^~~~
a.cc:7:8: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |   else cout << "Odd" << 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:7:25: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |   else cout << "Odd" << endl;
      |                         ^~~~
      |                         std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

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

int main() {
  int　a,b;
  cin a>>b;
  int c=a*b;
  if(c%2==0) puts("Even");
  else puts("Odd");
   return 0; 
}


Compiler output:
a.cc:5:3: error: extended character 　 is not valid in an identifier
    5 |   int　a,b;
      |   ^
a.cc: In function 'int main()':
a.cc:5:3: error: 'int\U00003000a' was not declared in this scope
    5 |   int　a,b;
      |   ^~~~~~
a.cc:5:10: error: 'b' was not declared in this scope
    5 |   int　a,b;
      |          ^
a.cc:6:6: error: expected ';' before 'a'
    6 |   cin a>>b;
      |      ^~
      |      ;
a.cc:7:9: error: 'a' was not declared in this scope
    7 |   int c=a*b;
      |         ^
Language: C++

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

int main() {
  int　a,b;
  cin a>>b;
  cout c=a*b;
  if(c%2==0) puts("Even");
  else if puts("Odd");
   return 0; 
}


Compiler output:
a.cc:5:3: error: extended character 　 is not valid in an identifier
    5 |   int　a,b;
      |   ^
a.cc: In function 'int main()':
a.cc:5:3: error: 'int\U00003000a' was not declared in this scope
    5 |   int　a,b;
      |   ^~~~~~
a.cc:5:10: error: 'b' was not declared in this scope
    5 |   int　a,b;
      |          ^
a.cc:6:6: error: expected ';' before 'a'
    6 |   cin a>>b;
      |      ^~
      |      ;
a.cc:7:7: error: expected ';' before 'c'
    7 |   cout c=a*b;
      |       ^~
      |       ;
a.cc:8:6: error: 'c' was not declared in this scope
    8 |   if(c%2==0) puts("Even");
      |      ^
a.cc:9:11: error: expected '(' before 'puts'
    9 |   else if puts("Odd");
      |           ^~~~
      |           (
Language: C++

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

int main() {
  int　a,b;
  cin a>>b;
  if(a*b?1){
    cout<<"Odd"<<endl;
  else if{
    *cout<<"Even"<<endl;
   return0; 
}


Compiler output:
a.cc:5:3: error: extended character 　 is not valid in an identifier
    5 |   int　a,b;
      |   ^
a.cc: In function 'int main()':
a.cc:5:3: error: 'int\U00003000a' was not declared in this scope
    5 |   int　a,b;
      |   ^~~~~~
a.cc:5:10: error: 'b' was not declared in this scope
    5 |   int　a,b;
      |          ^
a.cc:6:6: error: expected ';' before 'a'
    6 |   cin a>>b;
      |      ^~
      |      ;
a.cc:7:6: error: 'a' was not declared in this scope
    7 |   if(a*b?1){
      |      ^
a.cc:7:11: error: expected ':' before ')' token
    7 |   if(a*b?1){
      |           ^
      |           :
a.cc:7:11: error: expected primary-expression before ')' token
a.cc:9:3: error: expected '}' before 'else'
    9 |   else if{
      |   ^~~~
a.cc:7:12: note: to match this '{'
    7 |   if(a*b?1){
      |            ^
a.cc:9:10: error: expected '(' before '{' token
    9 |   else if{
      |          ^
      |          (
a.cc:12:2: error: expected '}' at end of input
   12 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C

#include<stdio.h>

int main(void)
{
  int a, b;
  scanf("%d %d",&a,&b);
  if(a*b%2)
    pritf("Odd");
    else
      printf("Even");
     
return 0;      
}

Compiler output:
main.c: In function 'main':
main.c:8:5: error: implicit declaration of function 'pritf'; did you mean 'printf'? [-Wimplicit-function-declaration]
    8 |     pritf("Odd");
      |     ^~~~~
      |     printf
Language: Java

import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

public class sol {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }

    static class Task {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int m = in.nextInt();
            if ((n % 2 == 1) && (m % 2 == 1)) {
                out.println("Odd");
            } else {
                out.println("Even");
            }
        }
    }

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

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

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

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

Compiler output:
Main.java:12: error: class sol is public, should be declared in a file named sol.java
public class sol {
       ^
1 error
Language: C++

#include <iostream>
using namespace std;

int main(){
  int a,b;
  if(a*b%2==0){
    cout<<'Even'<<endl;
  }else{
    cout<<<'Odd'<endl;
  }
}

Compiler output:
a.cc:7:11: warning: multi-character character constant [-Wmultichar]
    7 |     cout<<'Even'<<endl;
      |           ^~~~~~
a.cc:9:12: warning: multi-character character constant [-Wmultichar]
    9 |     cout<<<'Odd'<endl;
      |            ^~~~~
a.cc: In function 'int main()':
a.cc:9:11: error: expected primary-expression before '<' token
    9 |     cout<<<'Odd'<endl;
      |           ^
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int a, b, c;
  cin >> a >> b;
  c = (a*b)%2;
  if(c%2 == 0) cout << "Even" << endl;
  else cout << Odd << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:16: error: 'Odd' was not declared in this scope
    9 |   else cout << Odd << endl;
      |                ^~~
Language: C++

#include<bits/stdc++.h>
using nemespace std;
int a,b;
int main()
{
    cin>>a>>b;
    if (a*b%2) cout<<"Even"<<endl;
    else cout<<"Odd"<<endl;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'nemespace'
    2 | using nemespace std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |     cin>>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:7:16: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |     if (a*b%2) cout<<"Even"<<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:7:30: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |     if (a*b%2) cout<<"Even"<<endl;
      |                              ^~~~
      |                              std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:8:10: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |     else cout<<"Odd"<<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:8:23: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    8 |     else cout<<"Odd"<<endl;
      |                       ^~~~
      |                       std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

using System;
using System.Text;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using static System.Console;
using static System.Math;

namespace AtCoder
{
   public class Program
   {
       public static void Main(string[] args)
       {
           new Program().Solve(new ConsoleInput(Console.In, ' '));
       }

       public void Solve(ConsoleInput cin)
       {
       int a=cin.ReadInt;
       int b=cin.ReadInt;
       int n =(a*b);
       if(n%2==1)
            {
                Console.WriteLine("Odd");
            }
       if(n%2==0)
            {
                Console.WriteLine("Even");
            }
        }
       }
   }

   public class ConsoleInput
   {
       private readonly System.IO.TextReader _stream;
       private char _separator = ' ';
       private Queue<string> inputStream;
       public ConsoleInput(System.IO.TextReader stream, char separator = ' ')
       {
           this._separator = separator;
           this._stream = stream;
           inputStream = new Queue<string>();
       }
       public string Read
       {
           get
           {
               if (inputStream.Count != 0) return inputStream.Dequeue();
               string[] tmp = _stream.ReadLine().Split(_separator);
               for (int i = 0; i < tmp.Length; ++i)
                   inputStream.Enqueue(tmp[i]);
               return inputStream.Dequeue();
           }
       }
       public string ReadLine { get { return _stream.ReadLine(); }}
       public int ReadInt { get { return int.Parse(Read); }}
       public long ReadLong { get { return long.Parse(Read); }}
       public double ReadDouble { get { return double.Parse(Read); }}
       public string[] ReadStrArray(long N) { var ret = new string[N]; for (long i = 0; i < N; ++i) ret[i] = Read; return ret;}
       public int[] ReadIntArray(long N) { var ret = new int[N]; for (long i = 0; i < N; ++i) ret[i] = ReadInt; return ret;}
       public long[] ReadLongArray(long N) { var ret = new long[N]; for (long i = 0; i < N; ++i) ret[i] = ReadLong; return ret;}
   }


Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:2:7: error: expected nested-name-specifier before 'System'
    2 | using System.Text;
      |       ^~~~~~
a.cc:3:7: error: expected nested-name-specifier before 'System'
    3 | using System.Linq;
      |       ^~~~~~
a.cc:4:7: error: expected nested-name-specifier before 'System'
    4 | using System.Collections;
      |       ^~~~~~
a.cc:5:7: error: expected nested-name-specifier before 'System'
    5 | using System.Collections.Generic;
      |       ^~~~~~
a.cc:6:7: error: expected nested-name-specifier before 'static'
    6 | using static System.Console;
      |       ^~~~~~
a.cc:7:7: error: expected nested-name-specifier before 'static'
    7 | using static System.Math;
      |       ^~~~~~
a.cc:11:4: error: expected unqualified-id before 'public'
   11 |    public class Program
      |    ^~~~~~
a.cc:35:4: error: expected unqualified-id before 'public'
   35 |    public class ConsoleInput
      |    ^~~~~~
Language: C++

#include <iostream>
using namespace std;

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

int c = a*b;

if(c%2==0)
  cout << "Even" << endl;
else
  cout << "Odd" << endl;

Compiler output:
a.cc:5:1: error: 'cin' does not name a type
    5 | cin >> a >> b;
      | ^~~
a.cc:9:1: error: expected unqualified-id before 'if'
    9 | if(c%2==0)
      | ^~
a.cc:11:1: error: expected unqualified-id before 'else'
   11 | else
      | ^~~~
Language: C++

#include<iostream>
using namespace std;

int main()
{

    int a;
    std::cin >> a;

    int b;
    std::cin >> a;

    float f = (a*b)/2;

    if(f > 0){

        std::cout << "Odd";
        std

    }else{

        std::cout << "Even";

    }

    int wait;
    std::cin >> wait;
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:5: error: expected primary-expression before '}' token
   20 |     }else{
      |     ^
Language: C

#include<stdio.h>
#include<conio.h>
int main()
{ long int a,b,x,t,m;
    scanf("%ld",&a);
    scanf("%ld",&b);
     if((a*b)%2==0)
     {printf("even");}
     else
        {printf("odd");}

    return 0;
}

Compiler output:
main.c:2:9: fatal error: conio.h: No such file or directory
    2 | #include<conio.h>
      |         ^~~~~~~~~
compilation terminated.
Language: C

#include<stdio.h>
int main()
{
        int a , b, c;
    scanf("%d%d",&a, &b);
    c = a * b;
    if(c%2 != 0){
            printf("Odd\n");
        printf("As %d x %d = %d is odd\n",a , b ,c);
    }
    else{
        printf("Even\n");
        printf("As %d x %d = %d is even\n",a , b ,c);
    
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:16:1: error: expected declaration or statement at end of input
   16 | }
      | ^
Language: C

#include <stdio.h>

int main()
{
	int r,g,b;
	scanf("%d %d %d",&r&g&b);
	if((100*r+10*g+b)%4==0)
	{
		printf("YES\n");
	}
	else
	{
		printf("NO\n");
	}
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:28: error: invalid operands to binary & (have 'int *' and 'int')
    6 |         scanf("%d %d %d",&r&g&b);
      |                          ~~^
      |                          |
      |                          int *
Language: Java

public class no1 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int a = sc.nextInt();
		int b = sc.nextInt();

		int c = a * b;

		if(c % 2 == 0) {
			System.out.println("Odd");
		}else {
			System.out.println("Even");
		}

	}


}


Compiler output:
Main.java:1: error: class no1 is public, should be declared in a file named no1.java
public class no1 {
       ^
Main.java:3: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class no1
Main.java:3: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class no1
3 errors
Language: C++

<?php
echo array_product(explode(' ', fgets(STDIN))) % 2 == 0 ? 'Even' : 'Odd';
?>

Compiler output:
a.cc:2:59: warning: multi-character character constant [-Wmultichar]
    2 | echo array_product(explode(' ', fgets(STDIN))) % 2 == 0 ? 'Even' : 'Odd';
      |                                                           ^~~~~~
a.cc:2:68: warning: multi-character character constant [-Wmultichar]
    2 | echo array_product(explode(' ', fgets(STDIN))) % 2 == 0 ? 'Even' : 'Odd';
      |                                                                    ^~~~~
a.cc:1:1: error: expected unqualified-id before '<' token
    1 | <?php
      | ^
a.cc:3:1: error: expected unqualified-id before '?' token
    3 | ?>
      | ^
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: 'elce' was not declared in this scope
    9 |   elce{
      |   ^~~~
Language: Java

import java.util.*;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
  int a = sc.nextInt();
  int b = sc.nextInt();
  if((a*b)%2 == 0){System.out.println(Even);}
  else{System.out.println(Odd);}
}
}

Compiler output:
Main.java:7: error: cannot find symbol
  if((a*b)%2 == 0){System.out.println(Even);}
                                      ^
  symbol:   variable Even
  location: class Main
Main.java:8: error: cannot find symbol
  else{System.out.println(Odd);}
                          ^
  symbol:   variable Odd
  location: class Main
2 errors
Language: C++

#include <cstdio>
#include <iostream>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <queue>
#include <iomanip>
using namespace std;
int main ()
{
	//freopen(".in","r",stdin);
	//freopen(".out","w",stdout);
	int n,m;
	scanf("%d%d",&n,&m);
	n*=m;
	if(n%i==0) printf("Even\n");
	else printf("Odd\n");
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:14: error: 'i' was not declared in this scope
   17 |         if(n%i==0) printf("Even\n");
      |              ^
Language: C++

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

                              Online C++ Compiler.
               Code, Compile, Run and Debug C++ program online.
Write your code in this editor and press "Run" button to compile and execute it.

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

#include <iostream>

using namespace std;
int a=0, b=0, c=0;

class dd
{
private:
    int x=0;
public:
    dd(int y=0);
    bool check_dd();
};

dd::dd(int y=0)
{
    x=y;
}
bool dd::check_dd()
{
    int z=x%2;
    if(z==1){
        return(false);
    }else{
        return(true);
    }
};

int main()
{
    cin>>a>>b;
    c = a*b;
    dd c_dd(c);
    
    if(c_dd.check_dd()){
        cout<<"Even"<<endl;
    }else{
        cout<<"0dd"<<endl;
    }
}


Compiler output:
a.cc:23:1: error: default argument given for parameter 1 of 'dd::dd(int)' [-fpermissive]
   23 | dd::dd(int y=0)
      | ^~
a.cc:19:5: note: previous specification in 'dd::dd(int)' here
   19 |     dd(int y=0);
      |     ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
inline int read(){
    int f=1,x=0;
    char ch;
    do{
        ch=getchar();
        if(ch=='-'){
            f=-1;
        }
    }while(ch<'0'||ch>'9');
    do{
        x=x*10+ch-48;
        ch=getchar();
    }while(ch>='0'&&ch<='9');
    return f*x;
}
int main(){
    int a=read(),b=read();
    int c=a*b;
    if(c%2==1){
        cout<<"Odd";
    }
    else{
        cout<<"Even"Ven;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:15: error: unable to find string literal operator 'operator""Ven' with 'const char [5]', 'long unsigned int' arguments
   25 |         cout<<"Even"Ven;
      |               ^~~~~~~~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
 int a,b;
 cin>>a>>b;
 if(a*b%2==0){
  cout<<"Even"<<endl;
 }
 else if{a*b%2==1){
  cout<<"Odd"<<endl;
 }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: expected '(' before '{' token
   10 |  else if{a*b%2==1){
      |         ^
      |         (
a.cc:13:2: error: expected '}' at end of input
   13 | }
      |  ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

#include<iostream>
using namespace std;
int main()
{
    // 整数の入力
    int a,b;
    cin >> a >> b;
    // 出力
	if{a*b%2==0,
        cout << "Even" << endl;
    }else if{
      cout << "Odd" << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:11: error: expected '(' before '{' token
    9 |         if{a*b%2==0,
      |           ^
      |           (
a.cc:11:6: error: 'else' without a previous 'if'
   11 |     }else if{
      |      ^~~~
a.cc:11:13: error: expected '(' before '{' token
   11 |     }else if{
      |             ^
      |             (
a.cc:14:2: error: expected '}' at end of input
   14 | }
      |  ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C

#include <stdio.h>

int main() {
	int a, b;
	scanf_s("%d  %d", &a, &b);
	if ((a / 2) != 0 && (b / 2) != 0)
		printf("odd");
	else
		printf("even");

}

Compiler output:
main.c: In function 'main':
main.c:5:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    5 |         scanf_s("%d  %d", &a, &b);
      |         ^~~~~~~
      |         scanf