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] Output:[4,9] Note: Each element in the result should appear as many times as it ...
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] ...
Given two integer arrays nums1 and nums2, return an array of their intersection. Each element in the result must appear as many times as it shows in both arrays and you may return the result in any order. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2,2] Output: [2,2] ...
Output: [2,2] Example 2: Input: nums1 = [4,9,5], nums2 = [9,4,9,8,4] Output: [4,9] Note: Each element in the result should appear as many times as it shows in both arrays. The result can be in any order. Follow up: What if the given array is already sorted? How w...
42 -- 7:56 App LeetCode力扣 2. 两数相加 Add Two Numbers 16 -- 9:25 App LeetCode力扣 350. 两个数组的交集 II Intersection of Two Arrays II 104 -- 9:07 App LeetCode力扣 509. 斐波那契数 Fibonacci Number 89 -- 7:44 App LeetCode力扣 56. 合并区间 Merge Intervals 104 -- 6:32...
Each element in the result should appear as many times as it shows in both arrays. The result can be in any order. 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 num2's size? Which algorithm is...
arr2 = [1,2,5,7,9] arr3 = [1,3,4,5,8] 9 1 2 3 4 5 6 › [1,2,3,4,5] [1,2,5,7,9] [1,3,4,5,8] [197,418,523,876,1356] [501,880,1593,1710,1870] [521,682,1337,1395,1764] Source 该题目是 Plus 会员专享题 ...
这道题就是Intersection of Two Arrays的加强版。同样用HashMap来做。需要考虑在intersection中重复的次数。 代码如下: public class Solution { public int[] intersection(int[] nums1, int[] nums2) { HashMap<Integer, Integer> map = new HashMap<Integer, Integer>(); HashMap<Integer, Integer> resultM...
LeetCode Top Interview Questions 350. Intersection of Two Arrays II (Java版; Easy) 题目描述 AI检测代码解析 Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2,2]
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...