题解 | #两个数组的交集#

class Solution {
    bool hash[1010] = {0};
public:
    vector<int> intersection(vector<int>& nums1, vector<int>& nums2) 
    {
        vector<int> ret;
        for(auto x : nums1)
        {
            hash[x] = true;
        }

        for(auto x : nums2)
        {
            if(hash[x])
            {
                ret.push_back(x);
                hash[x] = false;
            }
        }

        return ret;
    }
};