+++ /dev/null
--- Array - array difference operator
---
---
-module Main(main) where
-
-import Array
-import Ix
-
-hist :: (Ix a, Num b) => (a,a) -> [a] -> Array a b
-hist bnds is = accumArray (+) 0 bnds [(i,1) | i <- is , inRange bnds i]
-
-main =
- let
- a1 = hist (0,10) (concat $ take 2 $ repeat [1..20])
- in
- print a1 >>
- print (a1 // [ (i,0) | i<-[0..10], odd i])
-
-
-