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: 4 Note:...
1.Problem 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. 题意很简单,找到一个一维数组中的第K大的数并返回。数组中第K大的数也是面试中经常考察的问题。现在就借Leetcode上的这题来详细总结下这个问题的...
我们直接使用 java 提供的排序算法,又因为默认是从小到大排序,所以将倒数第 k 个数返回即可。 public int findKthLargest(int[] nums, int k) { Arrays.sort(nums); return nums[nums.length - k]; } 解法二 我们没必要把所有数字正确排序,我们可以借鉴快排中分区的思想,这里不细讲了,大家可以去回顾一下快...
class Solution { public: int findKthLargest(vector<int>& nums, int k) { int left = 0,right = nums.size(); while(true){ int pos = partition(nums, left, right); if(pos == k-1) return nums[pos]; if(pos > k-1) right = pos; else left = pos+1; } } int partition(vector<...
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....
Write a Scala program to compute the average value of an array element except the largest and smallest values. Sample Solution: Scala Code: objectscala_basic{defmain(args:Array[String]):Unit={vararray_nums=Array(5,7,2,4,9);println("Original array:")for(x<-array_nums){print(s"${x},...
题目地址 https://leetcode.com/problems/kth-largest-element-in-an-array/ 题目分析 这道题希望我们从一个无序的数组中选取第k大的元素。有三种方法。 排序法 这是最直观的方法,需要对数组进行排序,然后返回第k大的元素,即从小到大排好序的数组中的索引为(n-k)的数 (n 是数组的长度)。
冒泡排序 两两比较,把最大的放在最后,然后次大的放倒数第二,依次执行。。。 classSolution:deffindKthLargest(self,nums,k):""" :type nums: List[int] :type k: int :rtype: int """foriinrange(len(nums)):forjinrange(len(nums)-i-1):ifnums[j]>nums[j+1]:nums[j],nums[j+1]=nums[j...
The disk drive provides a method of adaptively managing a cache segment divided into chunks by defining an unavailable data type to be stored in an element of a chunk array which indicates that the chunk is not available, and defining an available data type to be stored in an element of ...
You work with an array of JSON objects read from stdin, filter them using JavaScript to produce a results array that is printed to stdout. jsed - jsed is a small command-line utility to add, remove, and search for data in a JSON structure. jshon - Jshon is a JSON parser designed ...