leap-year

Instructions

Implement a method that checks if a year is a leap year.

All the following rules must be satisfied:

• A year is not a leap year if not divisible by 4
• A year is a leap year if divisible by 4
• A year is a leap year if divisible by 400
• A year is not a leap year if divisible by 100 but not by 400

Examples:

• 1997 is not a leap year (not divisible by 4)
• 1996 is a leap year (divisible by 4)
• 1600 is a leap year (divisible by 400)
• 1800 is not a leap year (divisible by 4, divisible by 100, NOT divisible by 400)

The method should return true if a year is a leap year, and false if it is not.