Tracks
/
Crystal
Crystal
/
Exercises
/
Leap
Leap

Leap

Easy
OverviewDig DeeperCommunity Solutions

Introduction

A leap year (in the Gregorian calendar) occurs:

  • In every year that is evenly divisible by 4.
  • Unless the year is evenly divisible by 100, in which case it's only a leap year if the year is also evenly divisible by 400.

Some examples:

  • 1997 was not a leap year as it's not divisible by 4.
  • 1900 was not a leap year as it's not divisible by 400.
  • 2000 was a leap year!
Note

For a delightful, four-minute explanation of the whole phenomenon of leap years, check out this YouTube video.

Instructions

Your task is to determine whether a given year is a leap year.

There are various ways to solve leap, this exercise focuses on not using the built-in Time.leap_year? method. This is because the goal of this exercise is to learn about dealing with comparisons and boolean logic. But for any other purpose, it is recommended to use the built-in method.

Source

CodeRanch Cattle Drive, Assignment 3The link opens in a new window or tab
Edit via GitHub The link opens in a new window or tab
Crystal Exercism

Ready to start Leap?

Sign up to Exercism to learn and master Crystal with 21 concepts, 125 exercises, and real human mentoring, all for free.

Sign up, it’s free! Log in to Exercism
Deep Dive into Leap!

Deep dive into the different algorithms and approaches you can use to solve Leap, as Jeremy and Erik explore interesting Community Solutions across 10 different languages on Exercism.