I have an array @a that gives some indices of another array @b

eg , @a_indices = (1,3,5)

If I know the size of @b, is there an easy way to determine the complementary positions?

eg if $b = 10 what are the positions that are not @a.

I was thinking I could create an array of indices 

@b_indices = (0..9)

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and then find the non-intersecting elements with @a_indices. Surely there must be an easier way? Thanks.

In reply to complementary array indices by coldy

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