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# 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 Suit Pass Execute the tests with: ```bash $ 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](http://jumpstartlab.com) ## Submitting Incomplete Solutions It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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181 entries across 181 versions & 1 rubygems