Largest int from concatenated ints: Difference between revisions

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<lang haskell>import Data.List (sortBy)
<lang haskell>import Data.List (sortBy)


nines = 9:map ((+9).(*10)) nines
nines = iterate ((+9).(*10)) 9


maxcat = foldl (\a (n,d)->a * (1 + d) + n) 0 .
maxcat = foldl (\a (n,d)->a * (1 + d) + n) 0 .
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