Leap Year

In this program, to check the leap year, there is a Mathematical formula for that. Now, according to the formula, if else conditions and statements are used. After checking all the conditions respectively, the program will give output.

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Program to check Leap Year.

#include<stdio.h>
#include<conio.h>
void main()
{ int a;
printf("\n program to check for leap year");
printf("\n\n enter year : ");
scanf("%d",&a);
if((a%400)==0)
{   printf("\n\n %d is a leap year",a);     }
else if((a%100)==0)
{ printf("\n\n it is not a leap year"); }
else if((a%4)==0)
{       printf("\n\n %d is a leap year",a);     }
else
{ printf("\n\n it is not a leap year"); }
getch();
}