Created
February 28, 2013 05:52
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| -- | | |
| -- Create patterns to divide. | |
| -- | |
| -- >>> divide 4 | |
| -- [[1,1,1,1],[1,1,2],[1,2,1],[1,3],[2,1,1],[2,2],[3,1],[4]] | |
| -- | |
| divide :: Int -> [[Int]] | |
| divide 0 = [[]] | |
| divide n = [[x]:y | x <- [1..n], y <- divide (n-x)] |
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