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Determine if a string is squeezable: Difference between revisions
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</pre>
=={{header|Haskell}}==
<lang haskell>import Text.Printf (printf)
input :: [(String, Char)]
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main =
mapM_ (\(a, b, c) -> printf "squeeze: '%c'\nold: %3d «««%s»»»\nnew: %3d «««%s»»»\n\n" c (length a) a (length b) b)
$ (\(s, c) -> (s, collapse s c, c)) <$> input</lang>
{{out}}
<pre>
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