classSolution{public:vector<int>intersection(vector<int>& nums1, vector<int>& nums2){sort(nums1.begin(), nums1.end());sort(nums2.begin(), nums2.end());// merge two sorted arraysvector<int> ret;inti =0, j =0;while(i < nums1.size() && j < nums2.size()) {if(nums1[i] ...
LeetCode题解之 Intersection of Two Arrays 1、题目描述 2、问题分析 借助于set来做。 3、代码 1 class Solution { 2 public: 3 vector<int> intersection(vector<int>& nums1, vector<int>& nums2) { 4 vector<int> res; 5 set<int> s1; 6 set<int> s2; 7 for( auto & n : nums1) 8 s1...
Can you solve this real interview question? Intersection of Two Arrays - Given two integer arrays nums1 and nums2, return an array of their intersection. Each element in the result must be unique and you may return the result in any order. Example 1:
Follow up: What if the given array is already sorted? How would you optimize your algorithm? What if nums1’s size is small compared to nums2’s size? Which algorithm is better? What if elements of nums2 are stored on disk, and the memory is limited such that you cannot load all el...
[LeetCode] 350. Intersection of Two Arrays II Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 =[1,2,2,1], nums2 =[2,2] Output:[2,2] 1. 2. Example 2: Input: nums1 =[4,9,5], nums2 =[9,4,9,8,4]...
What if the given array is already sorted? How would you optimize your algorithm? What if nums1's size is small compared to num2's size? Which algorithm is better? What if elements of nums2 are stored on disk, and the memory is limited such that you cannot load all elements into the...
Leetcode:Question4--Median of Two Sorted Arrays 题目描述 解法 这道题目假如采取最普通的做法,即为将两个数组结合在一起,再进行排序,然后取出直接取出中位数即可。排序的算法最优复杂度为 O(nlogn),而取出中位数的复杂度为O(n),遍历两个数组的复杂度也是O(n),所以整个算法的复杂度为O(nlogn),明显超过...
Leetcode:Question4--Median of Two Sorted Arrays 题目描述 解法 这道题目假如采取最普通的做法,即为将两个数组结合在一起,再进行排序,然后取出直接取出中位数即可。排序的算法最优复杂度为 O(nlogn),而取出中位数的复杂度为O(n),遍历两个数组的复杂度也是O(n),所以整个算法的复杂度为O(nlogn),明显...
LeetCode-Intersection of Two Arrays II Description: Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2,2] Output: [2,2] Example 2: Input: nums1 = [4,9,5], nums2 = [9,4,9,8,4] O...350. Intersection of...
What if elements ofnums2are stored on disk, and the memory is limited such that you cannot load all elements into the memory at once? 要完成的函数: vector<int> intersect(vector<int>& nums1, vector<int>& nums2) 说明: 1、这道题给定两个vector,要求返回两个vector的交集,比如nums1=[1,2...