42 lines
1.1 KiB
Markdown
42 lines
1.1 KiB
Markdown
|
# Leap
|
||
|
|
|
||
|
|
Write a program that will take a year and report if it is a leap year.
|
||
|
|
|
||
|
|
The tricky thing here is that a leap year occurs:
|
||
|
|
|
||
|
|
```plain
|
||
|
|
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.
|
||
|
|
|
||
|
|
If your language provides a method in the standard library that does
|
||
|
|
this look-up, pretend it doesn't exist and implement it yourself.
|
||
|
|
|
||
|
|
## Notes
|
||
|
|
|
||
|
|
For a delightful, four minute explanation of the whole leap year
|
||
|
|
phenomenon, go watch [this youtube video][video].
|
||
|
|
|
||
|
|
[video]: http://www.youtube.com/watch?v=xX96xng7sAE
|
||
|
|
|
||
|
|
* * * *
|
||
|
|
|
||
|
|
For installation and learning resources, refer to the
|
||
|
|
[exercism help page](http://help.exercism.io/getting-started-with-lfe.html).
|
||
|
|
|
||
|
|
For running the tests provided, you will need `make`. Open a terminal
|
||
|
|
window and run the following from the exercise directory:
|
||
|
|
|
||
|
|
make test
|
||
|
|
|
||
|
|
And you should now be able to see the results of the test suite for
|
||
|
|
the exercise.
|
||
|
|
|
||
|
|
## Source
|
||
|
|
|
||
|
|
JavaRanch Cattle Drive, exercise 3 [view source](http://www.javaranch.com/leap.jsp)
|