Determine if a string is collapsible: Difference between revisions
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=={{header|Haskell}}== |
=={{header|Haskell}}== |
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<lang haskell> |
<lang haskell> |
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import Text.Printf |
import Text.Printf (printf) |
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import Data.Maybe |
import Data.Maybe (catMaybes) |
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import Control.Applicative |
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input :: [String] |
input :: [String] |
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