intersection python Code Snippet in 2024
listbeginner
Last Updated: 20 April 2024
Returns a list of elements that exist in both lists.
- Create a
setfromaandb. - Use the built-in set operator
&to only keep values contained in both sets, then transform thesetback into alist.
def intersection(a, b):
_a, _b = set(a), set(b)
return list(_a & _b)intersection([1, 2, 3], [4, 3, 2]) # [2, 3]
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