[Haskell-cafe] How to take a minimum sub list that only contain certain number of elements of certain type?

[Magicloud Magiclouds]

Hi,
  For example, I have an array [0..]. Now I want to take a sub list
that starts from index 0, and only contain 4 odds, and is minimum
result. The answer should be [0, 1, 2, 3, 4, 5, 6, 7].
  How to do that? Combining lazy computing, I cannot figure out an
efficient algorithm.
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