力扣链接:leetcode.com/problems/k 博主Grandyang的c++解法:[LeetCode] 215. Kth Largest Element in an Array 数组中第k大的数字 开始的时候我的脑子里产生了很多天马行空的想法,比如用一个queue去重新存放顺序之类的。但是那显然是不合理且乱糟糟的。kth largest,就是一个排序问题。这里又一次用到了分治法,...
215 Kth Largest Element in an Array # 215 Kth Largest Element in an Array 题目来源: https://leetcode.com/problems/kth-largest-element-in-an-array/description/ 题意分析: 在一个无序链表中找出第k大的元素。 Example 1: Input: [3,2,1,5,6,4] and k = 2 Outp... ...
Kth Largest Element in an Array [leetcode]215. Kth Largest Element in an Array Analysis 好冷鸭~会下雪么—— [每天刷题并不难0.0] Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted ord...leetcode_215 Kth Largest Element in an Arr...
LeetCode 34. Find First and Last Position of Element in Sorted Array 题目描述: 给定一个按照升序排列的整数数组 nums,和一个目标值 target。找出给定目标值在数组中的开始位置和结束位置。 你的算法时间复杂度必须是 O(log n) 级别。 如果数组中不存在目标值,返回 [-1, -1]。 示例 1: 输入: nums ...
剑指offer 最小的k个数 、 leetcode 215. Kth Largest Element in an Array 、lintcode 80. Median、295. Find Median from Data Stream(剑指 数据流中位数) topK 注意multiset的一个bug: multiset带一个参数的erase函数原型有两种。一是传递一个元素值,如上面例子代码中,这时候删除的是集合中所有值等于输入...
[LeetCode] 34. Search for a Range 搜索一个范围(Find First and Last Position of Element in Sorted Array) 原题目:Search for a Range, 现在题目改为: 34. Find First and Last Position of Element in Sorted ArrayGiven an array of integers nums sorted in ascending order, find the starting and...
7 changes: 6 additions & 1 deletion 7 leetcode-x/find-majority-element/README.md Original file line numberDiff line numberDiff line change @@ -26,4 +26,9 @@ find majority element(主要元素) 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/find-majority-element-lcci 著作权归...
LeetCode-Find First and Last Position of Element in Sorted Array,LeetCodeJavaC++FindFirstandLastPositionofElementinSortedArray
1. Problem Descriptions:Given an array of integers nums sorted in non-decreasing order, find the starting and ending position of a given target value.If target is not found in the array, return [-1…
Runtime:35 ms, faster than100.00%of Java online submissions for Find Occurrences of an Element in an Array. Memory Usage:64.2 MB, less than100.00%of Java online submissions for Find Occurrences of an Element in an Array.