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【leetcode】349. Intersection of Two Arrays

萧萧雨潇潇 2022-07-12 阅读 60

problem

​​349. Intersection of Two Arrays​​

题意,是求解两个数组的交集。

 solution

class Solution {
public:
vector<int> intersection(vector<int>& nums1, vector<int>& nums2) {
unordered_set<int> tmp(nums1.begin(), nums1.end());
vector<int> res;
for(auto a:nums2)
{
if(tmp.count(a))
{
res.push_back(a);
tmp.erase(a);
}
}
return res;
}
};

 

 

参考

1.​​ Leetcode_349. Intersection of Two Arrays​​;

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