raindrops
Raindrops
Convert a number to a string, the contents of which depend on the number's factors.
- If the number has 3 as a factor, output 'Pling'.
- If the number has 5 as a factor, output 'Plang'.
- If the number has 7 as a factor, output 'Plong'.
- If the number does not have 3, 5, or 7 as a factor, just pass the number's digits straight through.
Examples
- 28's factors are 1, 2, 4, 7, 14, 28.
- In raindrop-speak, this would be a simple "Plong".
- 30's factors are 1, 2, 3, 5, 6, 10, 15, 30.
- In raindrop-speak, this would be a "PlingPlang".
- 34 has four factors: 1, 2, 17, and 34.
- In raindrop-speak, this would be "34".
Setup
Follow the setup instructions for Crystal here:
http://exercism.io/languages/crystal
More help installing can be found here:
http://crystal-lang.org/docs/installation/index.html
Making the Test Suite Pass
Execute the tests with:
$ crystal spec
In each test suite all but the first test have been skipped.
Once you get a test passing, you can unskip the next one by changing pending
to it
.
Source
A variation on a famous interview question intended to weed out potential candidates. http://jumpstartlab.com
Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.
raindrops
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raindrops
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- about 4 years ago
- August 11, 2020
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