Program to check given number is odd or even

#include<stdio.h>
#include<conio.h>
void main()
{
   int a;   /* for any integer */
   clrscr();
   printf("Enter a number \n");
   scanf("%d", &a);
   if(a%2==0)    /* checks for remainder is zero or not for 
                      even number it should be 0 */
     printf("even number");
   else
     printf("odd number");
getch();
}
    Output1:-
    Enter a number
    20
    even number
    Output2:-
    Enter a number
    15
    odd number