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(This exercise comes from the fantastic exercism.io website)

Given a year, report if it is a leap year.

The tricky thing here is that a leap year in the Gregorian calendar occurs:

on every year that is evenly divisible by 4 except every year that is evenly divisible by 100 unless the year is also evenly divisible by 400

For example, 1997 is not a leap year, but 1996 is. 1900 is not a leap year, but 2000 is.

Notes

Though our exercise adopts some very simple rules, there is more to learn!

For a delightful, four minute explanation of the whole leap year phenomenon, go watch this youtube video: http://www.youtube.com/watch?v=xX96xng7sAE

You may use the arithmetic remainder operator to test for divisibility.

When you are done with the exercise, send us a link to the repository on gitHub.

Note: This is a Rust exercise, no submissions of any other programming language are allowed (so no Python, C++, ...)!