Difference between revisions of "Talk:99 questions/Solutions/31"
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(New page: Does something like this deserves being put on the wiki ? <haskell> isPrime :: Int -> Bool isPrime n | n <= 1 = False isPrime n = isPrime' 2 n where isPrime' x n | x*x > n = True ...) |
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| − | Does something |
+ | Does something as simple but as dump as this should be on the wiki ? |
<haskell> |
<haskell> |
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isPrime :: Int -> Bool |
isPrime :: Int -> Bool |
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Revision as of 09:29, 14 January 2012
Does something as simple but as dump as this should be on the wiki ?
isPrime :: Int -> Bool
isPrime n | n <= 1 = False
isPrime n = isPrime' 2 n
where isPrime' x n | x*x > n = True
| otherwise = (n `rem` x) /= 0 && isPrime' (x+1) n