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

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:5:16: error: expected unqualified-id before 'int'
    5 |         int a, int b; cin>>a>>b;
      |                ^~~
a.cc:5:31: error: 'b' was not declared in this scope
    5 |         int a, int b; cin>>a>>b;
      |                               ^
Language: Java

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

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   cin >> a >> b;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | using namespace std;
a.cc:8:5: error: 'cout' was not declared in this scope
    8 |     cout << "Even";
      |     ^~~~
a.cc:8:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:11:5: error: 'cout' was not declared in this scope
   11 |     cout << "Odd";
      |     ^~~~
a.cc:11:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

#include <iostream>

using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:9:8: error: expected ')' before 'mod'
    9 |   if (c mod 2 == 0){
      |      ~ ^~~~
      |        )
Language: C++

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

int main(){
  int A, B;
  string message;
  
  if((A * B) % 2 == 1){
    message == "Odd";
  }else{
    message == "Even"
  }
  
  cout << message << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: warning: ignoring return value of 'bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*) [with _CharT = char; _Traits = char_traits<char>; _Alloc = allocator<char>]', declared with attribute 'nodiscard' [-Wunused-result]
    9 |     message == "Odd";
      |     ~~~~~~~~^~~~~~~~
In file included from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_string.h:3772:5: note: declared here
 3772 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
a.cc:11:22: error: expected ';' before '}' token
   11 |     message == "Even"
      |                      ^
      |                      ;
   12 |   }
      |   ~                   
a.cc:11:13: warning: ignoring return value of 'bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*) [with _CharT = char; _Traits = char_traits<char>; _Alloc = allocator<char>]', declared with attribute 'nodiscard' [-Wunused-result]
   11 |     message == "Even"
      |     ~~~~~~~~^~~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3772:5: note: declared here
 3772 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
Language: C

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

Compiler output:
main.c: In function 'main':
main.c:6:8: error: expected ')' before ':' token
    6 |   if((a:b%2)==0){
      |      ~ ^
      |        )
Language: C

#include<stdio.h>
int main()
{
  int a,b;
  char s[2][100]="Even","Odd";
  scanf("%d" "%d",&a,&b);
  if((a:b%2)==0){
    printf("Even");
  }else{
  printf("Odd");
  }
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:18: error: invalid initializer
    5 |   char s[2][100]="Even","Odd";
      |                  ^~~~~~
main.c:5:25: error: expected identifier or '(' before string constant
    5 |   char s[2][100]="Even","Odd";
      |                         ^~~~~
main.c:7:8: error: expected ')' before ':' token
    7 |   if((a:b%2)==0){
      |      ~ ^
      |        )
Language: C

#include<stdio.h>
int main()
{
  int a,b;
  char s[2][100]="Even","Odd";
  scanf("%d" "%d",&a,&b);
  printf("&s\n",s[(a*b)%2)]);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:18: error: invalid initializer
    5 |   char s[2][100]="Even","Odd";
      |                  ^~~~~~
main.c:5:25: error: expected identifier or '(' before string constant
    5 |   char s[2][100]="Even","Odd";
      |                         ^~~~~
main.c:7:26: error: expected ']' before ')' token
    7 |   printf("&s\n",s[(a*b)%2)]);
      |                          ^
      |                          ]
main.c:7:27: error: expected ';' before ']' token
    7 |   printf("&s\n",s[(a*b)%2)]);
      |                           ^
      |                           ;
main.c:7:27: error: expected statement before ']' token
main.c:7:28: error: expected statement before ')' token
    7 |   printf("&s\n",s[(a*b)%2)]);
      |                            ^
Language: C

#include<stdio.h>
int main()
{
  int a,b;
  char s[100];
  scanf("%d" "%d",&a,&b);
  ((a*b)%2)==0?s="Even":s="Odd";
  printf("&s\n",s);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:17: error: assignment to expression with array type
    7 |   ((a*b)%2)==0?s="Even":s="Odd";
      |                 ^
Language: C

#include<stdio.h>
int main()
{
  int a,b;
  char s[100];
  scanf("%d" "%d",&a,&b);
  ((a*b)%2)==0?s=Even:s=Odd;
  printf("&s\n",s);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:18: error: 'Even' undeclared (first use in this function)
    7 |   ((a*b)%2)==0?s=Even:s=Odd;
      |                  ^~~~
main.c:7:18: note: each undeclared identifier is reported only once for each function it appears in
main.c:7:25: error: 'Odd' undeclared (first use in this function)
    7 |   ((a*b)%2)==0?s=Even:s=Odd;
      |                         ^~~
Language: C

#include<stdio.h>
int main()
{
  int a,b;
  char s[100];
  scanf("%d" "%d",&a,&b);
  if(((a*b)%2)==0){
    s = "Even";
  }else{
    s = "Odd";
  }
  printf("&s\n",s);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:7: error: assignment to expression with array type
    8 |     s = "Even";
      |       ^
main.c:10:7: error: assignment to expression with array type
   10 |     s = "Odd";
      |       ^
Language: C

#include<stdio.h>
int main()
{
  int a,b;
  char s[100]
  scanf("%d" "%d",&a,&b);
  if(((a*b)%2)==0){
    s = "Even"
  }else{
    s = "Odd"
  }
  printf("&s\n",s);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
    6 |   scanf("%d" "%d",&a,&b);
      |   ^~~~~
main.c:8:5: error: 's' undeclared (first use in this function)
    8 |     s = "Even"
      |     ^
main.c:8:5: note: each undeclared identifier is reported only once for each function it appears in
main.c:8:15: error: expected ';' before '}' token
    8 |     s = "Even"
      |               ^
      |               ;
    9 |   }else{
      |   ~            
main.c:10:14: error: expected ';' before '}' token
   10 |     s = "Odd"
      |              ^
      |              ;
   11 |   }
      |   ~
Language: C++

#include<iostream>
using namespace std;
int main(){
  cin.tie(9);
  ios::sync_with_stdio(false);
  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:4:11: error: invalid conversion from 'int' to 'std::basic_ostream<char>*' [-fpermissive]
    4 |   cin.tie(9);
      |           ^
      |           |
      |           int
In file included from /usr/include/c++/14/ios:46,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/basic_ios.h:311:43: note:   initializing argument 1 of 'std::basic_ostream<_CharT, _Traits>* std::basic_ios<_CharT, _Traits>::tie(std::basic_ostream<_CharT, _Traits>*) [with _CharT = char; _Traits = std::char_traits<char>]'
  311 |       tie(basic_ostream<_CharT, _Traits>* __tiestr)
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Language: C++

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

int main()
{
  int a;
  int b;
  int c;
  
  cin>>a:
  cin>>b;
  
  c=a*b;
  
  if(c%2==0)
  {
    cout<<'Even'<<end1;
  }
  else
  {
    cout<<'Odd'<<end1;
  }
}

Compiler output:
a.cc:17:11: warning: multi-character character constant [-Wmultichar]
   17 |     cout<<'Even'<<end1;
      |           ^~~~~~
a.cc:21:11: warning: multi-character character constant [-Wmultichar]
   21 |     cout<<'Odd'<<end1;
      |           ^~~~~
a.cc: In function 'int main()':
a.cc:10:9: error: found ':' in nested-name-specifier, expected '::'
   10 |   cin>>a:
      |         ^
      |         ::
a.cc:10:8: error: 'a' is not a class, namespace, or enumeration
   10 |   cin>>a:
      |        ^
a.cc:17:19: error: 'end1' was not declared in this scope
   17 |     cout<<'Even'<<end1;
      |                   ^~~~
a.cc:21:18: error: 'end1' was not declared in this scope
   21 |     cout<<'Odd'<<end1;
      |                  ^~~~
Language: C++

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

int main()
{
  int a,b;
  cin>>a;
  cin>>b;
  
  if(a*b/2%=0)
  {
    cout<<'Even'<<end1;
  }
  else
  {
    cout<<'Odd'<<end1;
  }
}

Compiler output:
a.cc:12:11: warning: multi-character character constant [-Wmultichar]
   12 |     cout<<'Even'<<end1;
      |           ^~~~~~
a.cc:16:11: warning: multi-character character constant [-Wmultichar]
   16 |     cout<<'Odd'<<end1;
      |           ^~~~~
a.cc:2:7: error: expected nested-name-specifier before 'namespase'
    2 | using namespase std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   cin>>a;
      |   ^~~
      |   std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:10:11: warning: division by zero [-Wdiv-by-zero]
   10 |   if(a*b/2%=0)
      |      ~~~~~^~~
a.cc:10:9: error: lvalue required as left operand of assignment
   10 |   if(a*b/2%=0)
      |      ~~~^~
a.cc:12:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |     cout<<'Even'<<end1;
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:12:19: error: 'end1' was not declared in this scope
   12 |     cout<<'Even'<<end1;
      |                   ^~~~
a.cc:16:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   16 |     cout<<'Odd'<<end1;
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:16:18: error: 'end1' was not declared in this scope
   16 |     cout<<'Odd'<<end1;
      |                  ^~~~
Language: C++

#include <iostream>
using namespace std
  
int main(){
  int a,b;
  cin >> a >> b;
  string s;
  int target, sq;
  s = to_string(a) + to_string(b);
  target = int(s);
  sq = int(sqrt(double(target)));
  
  if(pow(sq, 2) == target){
  	cout << "Yes" << endl;
  }else{
  	cout << "No" << endl;
  }

  return 0;
}


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:10:12: error: invalid cast from type 'std::string' {aka 'std::__cxx11::basic_string<char>'} to type 'int'
   10 |   target = int(s);
      |            ^~~~~~
a.cc:11:12: error: 'sqrt' was not declared in this scope; did you mean 'sq'?
   11 |   sq = int(sqrt(double(target)));
      |            ^~~~
      |            sq
a.cc:13:6: error: 'pow' was not declared in this scope
   13 |   if(pow(sq, 2) == target){
      |      ^~~
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: expected initializer before 'cin'
    6 |   cin>>A>>B;
      |   ^~~
a.cc:7:9: error: 'B' was not declared in this scope
    7 |   if((A*B)%2==0){
      |         ^
Language: Java

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

Compiler output:
Main.java:5: error: cannot find symbol
    	Scannar sc = new Scanner(System.in);
    	^
  symbol:   class Scannar
  location: class Main
1 error
Language: Java

import java.util.Scanner;

public class Main{
	public static void main(String[] args){
    	Scannar sc = new Scanner(System.in);
   		int a = Integer.parseInt(sc.next());
      	int b = Integer.parseInt(sc.next());
      	if(a*b % 2 == 0){
          System.out.println("Even");
        }else{
          System.out.println("Odd");
    }
}

Compiler output:
Main.java:13: 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:7:10: error: expected ';' before 'if'
    7 |   c = a*b
      |          ^
      |          ;
    8 |   if (c%2 == 0){
      |   ~~      
a.cc:11:3: error: 'else' without a previous 'if'
   11 |   else{
      |   ^~~~
Language: Java

import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    int a = scan.nextInt();
    int b = scan.nextInt();
    
    System.out.println((a * b) % 2 == 0 ? "Even" : "Odd")
  }
}


Compiler output:
Main.java:9: error: ';' expected
    System.out.println((a * b) % 2 == 0 ? "Even" : "Odd")
                                                         ^
1 error
Language: Java

import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    int a = scan.nextInt();
    int b = scan.nextInt();
    
    System.out.println((a * b) % 2 = 0 ? "Even" : "Odd");
  }
}


Compiler output:
Main.java:9: error: unexpected type
    System.out.println((a * b) % 2 = 0 ? "Even" : "Odd");
                               ^
  required: variable
  found:    value
Main.java:9: error: incompatible types: int cannot be converted to boolean
    System.out.println((a * b) % 2 = 0 ? "Even" : "Odd");
                                     ^
2 errors
Language: Java

import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    int a = scan.nextInt();
    int b = scan.nextInt();
    
    System.out.println((a * b) % 2 = 0 ? "Even" : "Odd")
  }
}

Compiler output:
Main.java:9: error: ';' expected
    System.out.println((a * b) % 2 = 0 ? "Even" : "Odd")
                                                        ^
1 error
Language: C++

#include<iostream>
using namespace std;

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


Compiler output:
a.cc: In function 'int main()':
a.cc:8:4: error: lvalue required as left operand of assignment
    8 |   a*b=c;
      |   ~^~
Language: C++

#include<iostream>
using namespace std;

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


Compiler output:
a.cc: In function 'int main()':
a.cc:7:23: error: lvalue required as left operand of assignment
    7 |         if (a % 2 = 0 || b % 2 = 0) {
      |                     ~~^~~~~~~~
Language: C++

#include<iostream>
using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:8:4: error: lvalue required as left operand of assignment
    8 |   a*b=c;
      |   ~^~
a.cc:11:11: error: 'Even' was not declared in this scope
   11 |     cout<<Even<<endl;
      |           ^~~~
a.cc:15:11: error: 'Odd' was not declared in this scope
   15 |     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 << endl;
	}
	else {
		cout << Odd << endl;
	}
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:23: error: lvalue required as left operand of assignment
    7 |         if (a % 2 = 0 || b % 2 = 0) {
      |                     ~~^~~~~~~~
a.cc:8:25: error: 'Even' was not declared in this scope
    8 |                 cout << Even << endl;
      |                         ^~~~
a.cc:11:25: error: 'Odd' was not declared in this scope
   11 |                 cout << Odd << endl;
      |                         ^~~
Language: C++

#include<iostream>
usinf namespace std;
 
int main(){
	int a,b;
  	cin>>a>>b;
  	if(a%2=0||b%2=0){
    	cout<<Even<<endl;
    }else{
    	cout<<Odd<<endle;
    }
  return 0;
}


Compiler output:
a.cc:2:1: error: 'usinf' does not name a type
    2 | usinf namespace std;
      | ^~~~~
a.cc: In function 'int main()':
a.cc:6:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |         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:7:17: error: lvalue required as left operand of assignment
    7 |         if(a%2=0||b%2=0){
      |                ~^~~~~
a.cc:8:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |         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:8:15: error: 'Even' was not declared in this scope
    8 |         cout<<Even<<endl;
      |               ^~~~
a.cc:8:21: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    8 |         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:10:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |         cout<<Odd<<endle;
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:10:15: error: 'Odd' was not declared in this scope
   10 |         cout<<Odd<<endle;
      |               ^~~
a.cc:10:20: error: 'endle' was not declared in this scope
   10 |         cout<<Odd<<endle;
      |                    ^~~~~
Language: C++

#include<iosteram>
usinf namespace std;

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

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

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

int main(){
    int a, b;
    cin >> a >> b;
    int c = a * b;

    if(c % 2 = 1){
        cout << "Odd" << endl;
    }

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

}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:10: error: lvalue required as left operand of assignment
    9 |     if(c % 2 = 1){
      |        ~~^~~
a.cc:13:15: error: lvalue required as left operand of assignment
   13 |     else if(c % 2 = 0){
      |             ~~^~~
Language: C

#include <stdio.h>

main{
  int a,b;
  scanf("%d",a);
  scanf("%d",b);
  
  int c = a*b;
  
  if(c%2 == 0){
    printf("even");
  }else{
    printf("odd");
  }
  
  return 0;
}

Compiler output:
main.c:3:5: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    3 | main{
      |     ^
Language: C++

#include <bits/stdc++.h>と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:1:33: warning: extra tokens at end of #include directive
    1 | #include <bits/stdc++.h>とusing namespace std;
      |                                 ^~~~~~~~~
a.cc:1:10: fatal error: bits/stdc++.h>とusin: No such file or directory
    1 | #include <bits/stdc++.h>とusing namespace std;
      |          ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: Java

import java.io.BufferedReader;
import java.io.InputStreamReader;
 
public class Main {
    public static void main(String args[]) throws Exception{
        String[] s = new BufferedReader(new InputStreamReader(System.in)).readLine().split(" ");
        if((s[0].charAt(s[0].length() - 1)) & 1 == 0){
          System.out.println("Even");
        } else if((s[1].charAt(s[1].length() - 1)) & 1 == 0) {
          System.out.println("Even");
        } else {
          System.out.println("Odd");
        }
    }
}

Compiler output:
Main.java:7: error: bad operand types for binary operator '&'
        if((s[0].charAt(s[0].length() - 1)) & 1 == 0){
                                            ^
  first type:  char
  second type: boolean
Main.java:9: error: bad operand types for binary operator '&'
        } else if((s[1].charAt(s[1].length() - 1)) & 1 == 0) {
                                                   ^
  first type:  char
  second type: boolean
2 errors
Language: Java

import java.io.BufferedReader;
import java.io.InputStreamReader;
 
public class Main {
    public static void main(String args[]) throws Exception{
        BufferedReader stdR = new BufferedReader(new InputStreamReader(System.in));
        String[] s = stdR.readLine().split(" ");
        if((s[0].charAt(s[0].length() - 1)) & 0){
          System.out.println("Even");
        } else if((s[1].charAt(s[1].length() - 1)) & 0) {
          System.out.println("Even");
        } else {
          System.out.println("Odd");
        }
    }
}

Compiler output:
Main.java:8: error: incompatible types: int cannot be converted to boolean
        if((s[0].charAt(s[0].length() - 1)) & 0){
                                            ^
Main.java:10: error: incompatible types: int cannot be converted to boolean
        } else if((s[1].charAt(s[1].length() - 1)) & 0) {
                                                   ^
2 errors
Language: Java

import java.io.BufferedReader;
import java.io.InputStreamReader;
 
public class Main {
    public static void main(String args[]) throws Exception{
        BufferedReader stdR = new BufferedReader(new InputStreamReader(System.in));
        String[] s = stdR.readLine().split(" ");
        if(s[0].charAt(s[0].length() - 1) & 0){
          System.out.println("Even");
        } else if(s[1].charAt(s[1].length() - 1) & 0) {
          System.out.println("Even");
        } else {
          System.out.println("Odd");
        }
    }
}

Compiler output:
Main.java:8: error: incompatible types: int cannot be converted to boolean
        if(s[0].charAt(s[0].length() - 1) & 0){
                                          ^
Main.java:10: error: incompatible types: int cannot be converted to boolean
        } else if(s[1].charAt(s[1].length() - 1) & 0) {
                                                 ^
2 errors
Language: Java

import java.io.*;
public class Main{
  public static void main(String args[]) throws IOException {
    InputStreamReader isr = new InputStreamReader(System.in);
    int pos = -1;
    
    for(int next; (next = isr.read()) != ' '; pos = next);
    if(pos & 1 == 0){
      System.out.println("Even");
      return;
    }
    
    for(int next; (next = isr.read()) != -1; pos = next);
    if(pos & 1 == 0){
      System.out.println("Even");
      return;
    }
    
    System.out.println("Odd");
  }
}

Compiler output:
Main.java:8: error: bad operand types for binary operator '&'
    if(pos & 1 == 0){
           ^
  first type:  int
  second type: boolean
Main.java:14: error: bad operand types for binary operator '&'
    if(pos & 1 == 0){
           ^
  first type:  int
  second type: boolean
2 errors
Language: Java

import java.io.*;
public class Main{
  public static void main(String args[]) throws IOException {
    InputStreamReader isr = new InputStreamReader(System.in));
    int pos = -1;
    
    for(int next; (next = isr.read()) != ' '; pos = next);
    if(pos & 1 == 0){
      System.out.println("Even");
      return;
    }
    
    for(int next; (next = isr.read()) != -1; pos = next);
    if(pos & 1 == 0){
      System.out.println("Even");
      return;
    }
    
    System.out.println("Odd");
  }
}

Compiler output:
Main.java:4: error: ';' expected
    InputStreamReader isr = new InputStreamReader(System.in));
                                                            ^
1 error
Language: Java

import java.io.*;
public class Main{
  public static void main(String args[]){
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String s = br.readLine();
    if((s.charAt(s.indexOf(" ") - 1) & 1) == 0){
      System.out.println("Even");
    } else if ((s.charAt(s.length() - 1) & 1) == 0) {
      System.out.println("Even");
    } else {
      System.out.println("Odd");
    }
  }
}

Compiler output:
Main.java:5: error: unreported exception IOException; must be caught or declared to be thrown
    String s = br.readLine();
                          ^
1 error
Language: Java

import java.io.*;
public class Main{
  public static void main(String args[]){
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String s = br.readLine();
    if(s.charAt(s.indexOf(" ") - 1) & 1 == 0){
      System.out.println("Even");
    } else if (s.charAt(s.length() - 1) & 1 == 0) {
      System.out.println("Even");
    } else {
      System.out.println("Odd");
    }
  }
}

Compiler output:
Main.java:6: error: bad operand types for binary operator '&'
    if(s.charAt(s.indexOf(" ") - 1) & 1 == 0){
                                    ^
  first type:  char
  second type: boolean
Main.java:8: error: bad operand types for binary operator '&'
    } else if (s.charAt(s.length() - 1) & 1 == 0) {
                                        ^
  first type:  char
  second type: boolean
2 errors
Language: Java

import java.io.*;
public class Main{
  public static void main(String args[]){
    BufferedReader br = new BufferedReader(new InputStreamReader);
    String s = br.readLine();
    if(s.charAt(s.indexOf(" ") - 1) & 1 == 0){
      System.out.println("Even");
    } else if (s.charAt(s.length() - 1) & 1 == 0) {
      System.out.println("Even");
    } else {
      System.out.println("Odd");
    }
  }
}

Compiler output:
Main.java:4: error: '(' or '[' expected
    BufferedReader br = new BufferedReader(new InputStreamReader);
                                                                ^
1 error
Language: Java

import java.util.*;
public class Main{
  public static void main(String args[]){
    Scanner scn = new Scanner(System.in);
    int x = scn.nextInt();
    int y = scn.nextInt();
    if(x & y == 1){
      System.out.println("Even");
    } else {
      System.out.println("Odd");
    }
  }
}

Compiler output:
Main.java:7: error: bad operand types for binary operator '&'
    if(x & y == 1){
         ^
  first type:  int
  second type: boolean
1 error
Language: Java

import java.util.*;
public class Main{
  public static void main(String args[]){
    Scanner scn = new Scanner(System.in);
    int x = scn.nextInt();
    int y = scn.nextInt();
    if(1 & x & y == 1){
      System.out.println("Even");
    } else {
      System.out.println("Odd");
    }
  }
}

Compiler output:
Main.java:7: error: bad operand types for binary operator '&'
    if(1 & x & y == 1){
             ^
  first type:  int
  second type: boolean
1 error
Language: Java

import java.util.*;
public class Main{
  Scanner scn = new Scanner(System.in);
  int x = scn.nextInt();
  int y = scn.nextInt();
  if(x * y % 2 == 0){
    System.out.println("Even");
  } else {
    System.out.println("Odd");
  }
}

Compiler output:
Main.java:6: error: illegal start of type
  if(x * y % 2 == 0){
  ^
Main.java:6: error: <identifier> expected
  if(x * y % 2 == 0){
      ^
Main.java:6: error: <identifier> expected
  if(x * y % 2 == 0){
          ^
Main.java:8: error: illegal start of type
  } else {
    ^
4 errors
Language: C++

a, b = input().split(" ")

if (int(a) * int(b) % 2 != 0):
    print('Odd')
else:
    print('Even')

Compiler output:
a.cc:4:11: warning: multi-character character constant [-Wmultichar]
    4 |     print('Odd')
      |           ^~~~~
a.cc:6:11: warning: multi-character character constant [-Wmultichar]
    6 |     print('Even')
      |           ^~~~~~
a.cc:1:1: error: 'a' does not name a type
    1 | a, b = input().split(" ")
      | ^
Language: C++

    #include <bits/stdc++.h>
    using namespace std;
     
    int main() {
      int a, b;
      cin >> a >> b ;
      
      if((a*b) % 2 == 0){
        cout << "Even" << endl;
      }
      id((a*b) % 2 ==1){
        cout << "Odd" << endl;
      }
    }
        

Compiler output:
a.cc: In function 'int main()':
a.cc:11:7: error: 'id' was not declared in this scope
   11 |       id((a*b) % 2 ==1){
      |       ^~
Language: C++

#include <bits/stdc++.h>
u#includesing namespace std;
int main() {
  int a, b;
  cin >> a >> b;
  if (a % 2 == 0 || b % 2 == 0) {
    cout << "Odd" << endl;
  }
  else {
    cout << "Even" << endl;
  }
}

Compiler output:
a.cc:2:2: error: stray '#' in program
    2 | u#includesing namespace std;
      |  ^
a.cc:2:1: error: 'u' does not name a type
    2 | u#includesing namespace std;
      | ^
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin >> a >> b;
      |   ^~~
      |   std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |     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:7:22: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |     cout << "Odd" << 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:10:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |     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:10:23: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   10 |     cout << "Even" << endl;
      |                       ^~~~
      |                       std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// スペース区切りの整数の入力
		int a = sc.nextInt();
		int b = sc.nextInt();
		// 文字列の出力
		String s = "Odd";
      	if (a*b%2==0) {
          s="Even"
        }
		// 出力
		System.out.println(s);
	}
}

Compiler output:
Main.java:11: error: ';' expected
          s="Even"
                  ^
1 error
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// スペース区切りの整数の入力
		int a = sc.nextInt();
		int b = sc.nextInt();
		// 文字列の出力
		String s = ”Odd”;
      	if (a*b%2==0) {
          s=”Even”
        }
		// 出力
		System.out.println(s);
	}
}

Compiler output:
Main.java:9: error: illegal character: '\u201d'
		String s = ?Odd?;
		           ^
Main.java:9: error: illegal character: '\u201d'
		String s = ?Odd?;
		               ^
Main.java:9: error: not a statement
		String s = ?Odd?;
		            ^
Main.java:11: error: illegal character: '\u201d'
          s=?Even?
            ^
Main.java:11: error: illegal character: '\u201d'
          s=?Even?
                 ^
Main.java:11: error: not a statement
          s=?Even?
             ^
6 errors
Language: C++

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

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

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

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

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

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) {
      |      ~~~~~~^~~
a.cc:10:13: error: 'Even' was not declared in this scope
   10 |     cout << Even << endl;
      |             ^~~~
a.cc:14:13: error: 'Odd' was not declared in this scope
   14 |     cout << Odd << endl;
      |             ^~~
Language: C++

#include<iostream>
using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: 'ebdl' was not declared in this scope
   11 |   cout<<"Odd"<<ebdl;
      |                ^~~~
Language: C++

#include <bits/stdc++.h>
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;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: lvalue required as left operand of assignment
    7 |   if(a%2=1 && b%2=1){
      |          ~~^~~~~~
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){
   cout << "Even" << endl; 
  }
  else{
   cout << "Odd" << endl; 
  }
}


Compiler output:
a.cc:5:1: error: extended character 　 is not valid in an identifier
    5 | 　int a,b;
      | ^
a.cc: In function 'int main()':
a.cc:5:1: error: '\U00003000int' was not declared in this scope
    5 | 　int a,b;
      | ^~~~~
a.cc:6:10: error: 'a' was not declared in this scope
    6 |   cin >> a >> b;
      |          ^
a.cc:6:15: error: 'b' was not declared in this scope
    6 |   cin >> a >> b;
      |               ^
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:10:21: error: expected primary-expression before '<' token
   10 |     cout << "Odd" <<< endl;
      |                     ^
Language: C++

using System;
 
public class HelloWorld
{
    
    public static void Main(string[] args)
    {
        string[] arr = Console.ReadLine().Split(' ');
        int a = Int32.Parse(arr[0]);
        int b = Int32.Parse(arr[1]);

        string ret = ((a*b)%2 == 0) ? "Even" : "Odd";
        Console.WriteLine (ret);
    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class HelloWorld
      | ^~~~~~
Language: C++

#include <iostream>
using namespace std;

int main{
	
  int A,B;
  cin >> A >> B;
  
  int product = A*B;
  
  if (product%2 == 0){
  	cout << "Even";
  }else{
  	cout << "odd";
  }



}

Compiler output:
a.cc:4:5: error: cannot declare '::main' to be a global variable
    4 | int main{
      |     ^~~~
a.cc:6:3: error: expected primary-expression before 'int'
    6 |   int A,B;
      |   ^~~
a.cc:6:3: error: expected '}' before 'int'
a.cc:4:9: note: to match this '{'
    4 | int main{
      |         ^
a.cc:7:3: error: 'cin' does not name a type
    7 |   cin >> A >> B;
      |   ^~~
a.cc:9:17: error: 'A' was not declared in this scope
    9 |   int product = A*B;
      |                 ^
a.cc:9:19: error: 'B' was not declared in this scope
    9 |   int product = A*B;
      |                   ^
a.cc:11:3: error: expected unqualified-id before 'if'
   11 |   if (product%2 == 0){
      |   ^~
a.cc:13:4: error: expected unqualified-id before 'else'
   13 |   }else{
      |    ^~~~
a.cc:19:1: error: expected declaration before '}' token
   19 | }
      | ^
Language: C++

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

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:14:2: error: expected '}' at end of input
   14 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

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

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C

#include <stdio.h>
int main void()
{
  int a,b,c;
  char s[100];
  
  scanf("%d &d",&a,&b);
  
  if((a+b)%2==0)
  {
     printf("Even");
  }
  else
  {
         printf("Odd");
  }

  
  return 0;
}

Compiler output:
main.c:2:9: error: expected ';' before 'void'
    2 | int main void()
      |         ^~~~~
      |         ;
main.c:2:15: error: expected identifier or '(' before ')' token
    2 | int main void()
      |               ^
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:11:3: error: expected '}' before 'else'
   11 |   else {
      |   ^~~~
a.cc:9:27: note: to match this '{'
    9 |   if ( (a * b) % 2 == 0 ) {
      |                           ^
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 |         cin >> a;
      |         ^~~
      |         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:7:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |                 cout << "Even";
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:10:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |                 cout << "Odd";
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: Java

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

Compiler output:
Main.java:5: error: cannot find symbol
      double x = (double) (a*b)/2;
                           ^
  symbol:   variable a
  location: class Main
Main.java:5: error: cannot find symbol
      double x = (double) (a*b)/2;
                             ^
  symbol:   variable b
  location: class Main
Main.java:6: error: cannot find symbol
      if(x == (a*b)/2 ) System.out.println("Even");
               ^
  symbol:   variable a
  location: class Main
Main.java:6: error: cannot find symbol
      if(x == (a*b)/2 ) System.out.println("Even");
                 ^
  symbol:   variable b
  location: class Main
4 errors
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: expected initializer before 'cin'
    6 |   cin >> a >> b;
      |   ^~~
a.cc:8:11: error: 'b' was not declared in this scope
    8 |   if( a * b % 2 == 0){
      |           ^
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: 'Even' was not declared in this scope
    8 |     cout << Even << endl;
      |             ^~~~
a.cc:10:13: error: 'Odd' was not declared in this scope
   10 |     cout << Odd << endl;
      |             ^~~
Language: C++

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

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

Compiler output:
a.cc:6:1: error: extended character 　 is not valid in an identifier
    6 | 　cin >> a >> b;
      | ^
a.cc:7:1: error: extended character 　 is not valid in an identifier
    7 | 　if ((a*b)%2 == 0) {
      | ^
a.cc:9:1: error: extended character 　 is not valid in an identifier
    9 | 　}
      | ^
a.cc:10:1: error: extended character 　 is not valid in an identifier
   10 | 　else {
      | ^
a.cc:12:1: error: extended character 　 is not valid in an identifier
   12 | 　}
      | ^
a.cc: In function 'int main()':
a.cc:6:1: error: '\U00003000cin' was not declared in this scope
    6 | 　cin >> a >> b;
      | ^~~~~
a.cc:7:1: error: '\U00003000if' was not declared in this scope
    7 | 　if ((a*b)%2 == 0) {
      | ^~~~
a.cc:10:1: error: '\U00003000else' was not declared in this scope
   10 | 　else {
      | ^~~~~~
Language: C++

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


Compiler output:
a.cc: In function 'int main()':
a.cc:7:21: error: 'B' was not declared in this scope
    7 |   if (a % 2 == 0 || B % 2 == 0){
      |                     ^
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"<<endl;
  else cout<<"Odd"<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: found ':' in nested-name-specifier, expected '::'
    7 |   int c=a:b;
      |          ^
      |          ::
a.cc:7:9: error: 'a' is not a class, namespace, or enumeration
    7 |   int c=a:b;
      |         ^
Language: C++

Ⅴ#include <iostream>
using namespace std;

int main() {
	int N, A;
	cin >> N >> A;

	if (N % 2 == 1 && A % 2 == 1) {
		cout << "Odd" << endl;
	}
	else {
		cout << "Even" << endl;
	}
}

Compiler output:
a.cc:1:2: error: stray '#' in program
    1 | Ⅴ#include <iostream>
      |  ^
a.cc:1:1: error: '\U00002164' does not name a type
    1 | Ⅴ#include <iostream>
      | ^
a.cc: In function 'int main()':
a.cc:6:9: error: 'cin' was not declared in this scope
    6 |         cin >> N >> A;
      |         ^~~
a.cc:9:17: error: 'cout' was not declared in this scope
    9 |                 cout << "Odd" << endl;
      |                 ^~~~
a.cc:9:34: error: 'endl' was not declared in this scope
    9 |                 cout << "Odd" << endl;
      |                                  ^~~~
a.cc:12:17: error: 'cout' was not declared in this scope
   12 |                 cout << "Even" << endl;
      |                 ^~~~
a.cc:12:35: error: 'endl' was not declared in this scope
   12 |                 cout << "Even" << endl;
      |                                   ^~~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
    // 整数の入力
    int a,b;
    cin >> a >>b;
    // スペース区切りの整数の入力
    int c = a * b;
  if ( c % 2 == 0 ) count << "Even" <<endl;
   else cout << "Odd" << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:21: error: 'count' was not declared in this scope
   10 |   if ( c % 2 == 0 ) count << "Even" <<endl;
      |                     ^~~~~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'intc' was not declared in this scope; did you mean 'int'?
    7 |   intc=a*b;
      |   ^~~~
      |   int
a.cc:8:6: error: 'c' was not declared in this scope
    8 |   if(c%2==0) count<<"Even"<<endl;
      |      ^
a.cc:8:14: error: 'count' was not declared in this scope
    8 |   if(c%2==0) count<<"Even"<<endl;
      |              ^~~~~
a.cc:9:8: error: 'count' was not declared in this scope
    9 |   else count<<"Odd"<<endl;
      |        ^~~~~