find same elements between two sequences

a=[2 5 4 6 6 7 9 8 4 5 61 2 56 41]
b=[1 9 7 3 2 4 5 1 6 4 78 1 12 56 14 27 46 1 3 2 4]
how to find same elements in between two sequences. in above 2,4,5,6,7,9,56 are same elements.

回答(1 个)

a=[2 5 4 6 6 7 9 8 4 5 61 2 56 41]
b=[1 9 7 3 2 4 5 1 6 4 78 1 12 56 14 27 46 1 3 2 4]
c=intersect(a,b)

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