/* 
   Program# 13 
   date : 25-12-2008
   Even number or Odd number 
*/

#include <stdio.h>
main(){
int n,x;
printf("\nEnter a number : ");
scanf("%d",&n);
x=n%2; 
if(x==0) // even number is a number which is divisible by 2
printf("\n%d : Even number\n",n);
else
printf("\n%d : Odd number\n",n);
}

1.The sign of the remainder is always same as the sign of the numerator.
2. The modular division % operator returns the remainder on dividing one integer 35 with another integer.
3. It cannot be applied on float.
4. If the expression (x = = 0) evaluates to true means, the printf statement next to if will get printed, otherwise the statement after else will get printed.

if - else statement

if(condition)
    true statement;     
else
    false statement;

if(condition)
  {
           statement 1;
           statement 2;
           .
           .
           statement n;
  }
else
  {
           statement 1;
           statement 2;
           .
           .
           statement n;
  }