利用快速排序的思想,从数组S中随机找出一个元素X,把数组分为两部分Sa和Sb。Sa中的元素大于等于X,Sb中元素小于X。这时有两种情况: 1. Sa中元素的个数小于k,则Sb中的第k-|Sa|个元素即为第k大数; 2. Sa中元素的个数大于等于k,则返回Sa中的第k大数。时间复杂度近似为O(n) publicvoidfindk(int[] nums...
题目地址:https://leetcode.com/problems/kth-largest-element-in-an-array/description/题目描述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.
classSolution:deffindKthLargest(self,nums,k):""" :type nums: List[int] :type k: int :rtype: int """foriinrange(k):temp=0forjinrange(len(nums)-i):ifnums[j]>nums[temp]:temp=j nums[temp],nums[len(nums)-i-1]=nums[len(nums)-i-1],nums[temp]returnnums[len(nums)-k] 快速排...
To find the largest element from the array, a simple way is to arrange the elements in ascending order. After sorting, the first element will represent the smallest element, the next element will be the second smallest, and going on, the last element will be the largest element of the arr...
LeetCode 0215. Kth Largest Element in an Array数组中的第K个最大元素【Medium】【Python】【快排】【堆】 Problem LeetCode Find thekth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. ...
找数组中第K大的。找第K大/小的用quick select或heap sort。 /** @lc app=leetcode id=215 lang=cpp** [215] Kth Largest Element in an Array*/// @lc code=startclassSolution{public:intfindKthLargest(vector<int>&nums,intk){constautopartition=[&](intl,intr){constintind=rand()%(r-l+1...
A step-by-step illustrated guide on how to get the indices of the N largest values in a NumPy array in multiple ways.
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:[3,2,1,5,6,4] Example 2:[3,2,3,1,2,4,5,5,6] No…
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 ...
An apertured fibrous nonwoven web with an array of apertures is made that allows for increased functionality and improved aesthetic appearance. The material is particularly well-suited for use as a topsheet or bodyside liner material for... JH Lee,HB Kim,HW Park,... 被引量: 1发表: 2014年...