Determine if a string has all unique characters: Difference between revisions
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(→{{header|Haskell}}: Added a variation (fusion) within the string-folding draft.) |
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(zip [0 ..] xs)))) |
(zip [0 ..] xs)))) |
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-- OR, fusing filter and minimumByMay down to a single fold: |
-- OR, fusing filter, toList and minimumByMay down to a single fold: |
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duplicatedCharIndices_ :: String -> Maybe (Char, [Int]) |
duplicatedCharIndices_ :: String -> Maybe (Char, [Int]) |
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duplicatedCharIndices_ xs = |
duplicatedCharIndices_ xs = |
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