Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. Example 1: Input: [3,2,1,5,6,4] and k = 2 Output: 5 Example 2: Input: [3,2,3,1,2,4,5,5,6] and k = 4 Output:…

class Solution { public: int findKthLargest(vector<int>& nums, int k) { sort(nums.begin(), nums.end()); return nums[nums.size() - k]; } };…

215. 数组中的第K个最大元素 问题描述 在未排序的数组中找到第 k 个最大的元素.请注意,你需要找的是数组排序后的第 k 个最大的元素,而不是第 k 个不同的元素. 示例 示例 1: 输入: [3,2,1,5,6,4] 和 k = 2 输出: 5 示例 2: 输入: [3,2,3,1,2,4,5,5,6] 和 k = 4 输出: 4 思路 从大到小排序,返回第 k-1 个元素. class Solution: def findKthLargest(self, nums, k): ""…

Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. For example, Given [3,2,1,5,6,4] and k = 2, return 5. Note: You may assume k is always valid, 1 ≤ k ≤ array'…

//1.single number和变体 //2.lru lfu 3.给一个正整数集合,求一个和最大且能被3整除的子集.Follow up: 如果集合里有正有负 4.leetcode200-number of islands;followup:leetcode694-Number of Distinct Islands,leetcode253 5.leetcode69 sqrt double (binary search) //6.很简单的二叉树题,判断树的所有节点value是不是都相同:fol…

算法刷题笔记 Leetcode-11. Container With Most Water Method: (对撞指针)每次保留两指针中最大的那个即可求得最大的面积 Runtime: 16 ms, faster than 95.65% of C++ online submissions for Container With Most Water. Memory Usage: 9.9 MB, less than 43.30% of C++ online submissions for Contai…

215. 数组中的第K个最大元素 LeetCode-215 另一道类似的第k大元素问题:https://www.cnblogs.com/GarrettWale/p/14386862.html 题目详情 方法一:使用快速排序 package com.walegarrett.interview; /** * @Author WaleGarrett * @Date 2021/2/17 22:24 */ import java.util.Arrays; /** * 题目描述:在未排序的数组中找到第 k…