Au contraire, M::C supports nCk and the described operation can be expressed as a two-deep explicit nested loop of nCk next-combination calls, the lower layer being nC1.

Update: because selecting a single member from a set is the semi-degenerate nC1 case of an nCr.

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^M Free your mind!

In reply to Re^3: Efficient Unique Nested Combinations by Moron
in thread Efficient Unique Nested Combinations by FFRANK

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