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Combinations of a set of lengths #120

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yuvalwas opened this issue Mar 2, 2022 · 0 comments

yuvalwas commented Mar 2, 2022

I thought this addition might be handy

combinations(a, T::AbstractVector{<:Integer}) = Iterators.flatten([combinations(a, t) for t in T])
julia> collect(combinations(1:5, 2:3))
20-element Vector{Vector{Int64}}:
 [1, 2]
 [1, 3]
 [1, 4]
 [1, 5]
 ⋮
 [2, 3, 4]
 [2, 3, 5]
 [2, 4, 5]
 [3, 4, 5]

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