349 intersection of two Arrays the intersection of two arrays

Source: Internet
Author: User

Given two arrays, write a function to calculate the intersection of them.
Given num1= [1, 2, 2, 1], nums2 = [2, 2], return [2].
Each element in the result must be unique.
We can not consider the order of the output results.
See: https://leetcode.com/problems/intersection-of-two-arrays/description/

Class Solution {public:    vector<int> intersection (vector<int>& nums1, vector<int>& NUMS2) {        set<int> s (nums1.begin (), Nums1.end ()), res;        for (auto Num:nums2)        {            if (S.count (num))            {                res.insert (num);            }        }        Return vector<int> (Res.begin (), Res.end ());    };

Reference: https://www.cnblogs.com/grandyang/p/5507129.html

349 intersection of two Arrays the intersection of two arrays

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.