15. leetcode 349. Intersection of Two Arrays
Given two arrays, write a function to compute their intersection.
Example:
Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2].
Note:
- Each
element in the result must be unique. - The
result can be in any order.
思路:利用
C++ 中的set 容器。

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