Program To Check Leap Year in C using if else Statement

In this program, You learn about leap year in detail in below then learn program to check leap year in C using if-else statement. 

Leap Year

A leap year is exactly divisible by 4 except for century years (years ending with 00). The century year is a leap year only if it is perfectly divisible by 400. Since 1900 is divisible by 4 and is also a century year (ending with 00), it has been divisible by 400 for a leap year. Since it's not divisible by 400, 1900 is not a leap year.

Check leap year in C

Program:

#include<stdio.h>
int main()
{ 
 int year;
  printf("\n Enter a year:");
   scanf("%d",&year);
       if(year%100==0)
        {
          if(year%400==0)
             { 
               printf("%d is a leap year",year);
              }
          else
             {
               printf("%d is not a leap year",year);
             }
        }
       else
        { 
          if(year%4==0)
             {
               printf("%d is a leap year",year);
             }
          else
             {
               printf("%d is not a leap  year",year);
             }
        }
 return 0;
}

For example, if the user enters 1900 then the output will be:

Enter a year:1900

1900 is not a leap year

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