Leap year program

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Leap Year Program:

A leap year has 366 days whereas a non-leap year has 365 days.

To check if a year is a leap year it should satisfy either of the two conditions:

  • For years that are not century years (example – 2004, 2008, etc.), the year should be divisible by 4 and not divisible by 100 to be a leap year.
  • For years that are century years (example – 1600, 2000, etc.), the year should be divisible by 400 to be a leap year.

The code for checking if a year is a leap year or not is:

 
#include <stdio.h>

int  main() {

   int  year;

   printf("Enter year: ");

   scanf("%d", & amp; year);

   if  (((year % 4  == 0) & amp; & amp;
         (year % 100 != 0)) || (year % 400  == 0))

      printf("%d is a Leap year", year);

   else

      printf("%d is not a Leap Year", year);

   return  0;

}

  • We have created an integer variable year to store the user input for the year.
  • We are simply checking if the year is divisible by 4 and not divisible by 100 OR if the year is divisible by 400. If any of these two conditions are satisfied, the year is a leap year; else, it is not a leap year.
  • We use the modulus operator to check for divisibility. If a%b is equal to 0, it implies that a is perfectly divisible by b.

We run the code for different inputs and get the outputs accordingly.

Some inputs and outputs for the code are:

 

Enter year:  2002

2002 is not a Leap Year

Enter year:  2000

2000 is a Leap year

Enter year:  1993

1993 is not a Leap Year

Enter year:  1600

1600 is a Leap year

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CopyRight © 2019