CareerCup

#include<stdio.h>
main()
{
int num;
char str[2][]={"EVEN","ODD"};
printf("ENTER ANY NUMBER:");
scanf("%d",&num);
printf("GIVEN NUMBER IS %s",str[num%2]);

}

c# variant.

bool isEven = !Convert.ToBoolean( num % 2 );

Just use the last bit to determine whether it is odd.

1 for true, 0 for false

typedef int bool;
#define true 1
#define false 0
bool isOdd(int n) {return n&1;}

or this

typedef enum { false, true } bool;

int is_odd(uint n) {
return (n & 0x1);
}

def odd_or_even(x):
  if x & 1 != 0
    return "odd"
  else
    return even