Leap Year Program in C

A leap year is a year that contains an additional day in February month i.e. February 29. It means that a leap year has 366 days instead of the usual 365 days. In this article, we will see the program to check for leap year in C.

Conditions for a Leap Year

A leap year occurs once every four years and to check whether a year is a leap year, the following conditions should be satisfied:

• It is a multiple of 4 but not of 100, or
• It is a multiple of 400.

For example, 2000 is a leap year but 1900 is not.

Leap Year

Complexity Analysis

• Time Complexity: O(1)
• Auxiliary Space: O(1)