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  1. myfoldl _ v [] = v
  2. myfoldl f v (x:xs) = myfoldl f (f v x) xs
  3.  
  4. mysum =  myfoldl (+) 0
  5.  
  6. sumlist xs = [mysum [1..x] | x <- xs]
  7.  
  8. mytake 0 _ = []
  9. mytake n (x:xs) = x:mytake (n - 1) xs
  10.  
  11. main = print (mytake 10 (sumlist [1..1000000]))
  12.  
  13.  
Success #stdin #stdout 0.02s 3592KB
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Standard input is empty
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[1,3,6,10,15,21,28,36,45,55]
https://ideone.com/insK7
language:
Haskell (ghc 8.4.4)
created:
12 years ago
visibility:
public

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