fromtypingimportListimportrandomclassSolution:deffindKthLargest(self,nums:List[int],k:int)->int:# 将问题转化为寻找第n-k个最小元素k=len(nums)-kdefquickSelect(l,r):pivot,p=nums[r],l# 将小于等于pivot的元素移动到左侧foriinrange(l,r):i
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's length. 解题思路: ...
解法一:直接利用sort函数排序后,取第k大的元素。 classSolution {public:intfindKthLargest(vector<int>& nums,intk) { sort(nums.begin(), nums.end());returnnums[nums.size() -k]; } }; classSolution {public:intfindKthLargest(vector<int>& nums,intk) { sort(nums.begin(), nums.end(),great...
summary: "Given an integer array nums and an integer k, return the kth largest element in the array." ---## Introduction Given an integer array `nums` and an integer `k`, return the `k-th` largest element in the array. Note that it is the `k-th` largest element in the sorted ...
LeetCode 215. Kth Largest Element in an Array 原题链接在这里:https://leetcode.com/problems/kth-largest-element-in-an-array/ 题目: 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....
Leetcode: Kth Largest Element in an Array 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,return5....
https://leetcode.com/problems/kth-largest-element-in-an-array/description/ 内置排序beat 99%,重新写一下归并和快排比比试试。 自己写的归并排序,beat 40% . 快速排序由于基准点问题第一次直接 TLE. 好吧,修改一下,选取基准点的方法基本是: 1. 取左端或右端。 2. 随机取。 3. 取...
Write a Python program to find the kth (1 <= k <= array's length) largest element in an unsorted array using the heap queue algorithm. Sample Solution: Python Code:import heapq class Solution(object): def find_Kth_Largest(self, nums, k): """ :type nums: List[int] :type of k: ...
解法一:class Solution { public: int kthSmallest(vector<vector<int>>& matrix, int k) { priority_queue<int> q; for (int i = ; i < matrix.size(); ++i) { for (int j = ; j < matrix[i].size(); ++j) { q.emplace(matrix[i][j]);...
class Solution{public:intfindKthLargest(vector<int>&nums,intk){priority_queue<int>nums_pq(nums.begin(),nums.end());for(inti=0;i<k-1;++i){nums_pq.pop();}returnnums_pq.top();}}; Runtime: 16 ms, faster than 83.56% of C++ online submissions for Kth Largest Element in an Array....