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  1. main = do
  2. 	m:n:k:_ <- fmap (map read . words) getLine
  3. 	matr <- fmap (map (map (read . return)) . lines) getContents
  4. 	print $ sum [1 | n' <- [1..n], n'' <- [0..n - n'], m' <- [1..m], m'' <- [0..m - m'],
  5. 		let f = (. drop) . (.) . take, sum (f n' n'' matr >>= f m' m'') == k]
Success #stdin #stdout 0s 6352KB
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12
https://ideone.com/e1M2MV
language:
Haskell (ghc 8.4.4)
created:
11 years ago
visibility:
public

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