'How to calculate combinations in Python [duplicate]
I want to calculate a combination set as a collection of all possible subsets of k items selected from n items. For example, if n = 4 and k = 3, then the items are the integers (0, 1, 2, 3), then there are 4 possible combination elements:
[0, 1, 2]
[0, 1, 3]
[0, 2, 3]
[1, 2, 3]
Is there a function to do it in Python?
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