Changeset 20943 for lang/haskell/nario/Util.hs
- Timestamp:
- 10/08/08 07:34:08 (3 months ago)
- Files:
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- 1 modified
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lang/haskell/nario/Util.hs (modified) (1 diff)
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lang/haskell/nario/Util.hs
r20925 r20943 8 8 9 9 -- けつの n 個取り出し 10 lastN n xs = loopn [] xs10 lastN n xs = supply n [] xs 11 11 where 12 loop _ acc [] = acc 13 loop 0 acc (x:xs) = loop 0 (tail acc ++ [x]) xs 14 loop n acc (x:xs) = loop (n-1) (acc ++ [x]) xs 12 supply _ acc [] = acc 13 supply 0 acc xs = queue acc xs 14 supply n acc (x:xs) = supply (n-1) (acc ++ [x]) xs 15 queue acc [] = acc 16 queue acc (x:xs) = queue (tail acc ++ [x]) xs 15 17 16 18 -- 数値の符号を返す
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