Given a non-empty array of integers, return the k most frequent elements. Example 1: Example 2: Note: You may assume k is always ...
Given a non empty array of integers, return thekmost frequent elements. Example : Example : Note: You may assumekis always valid, k number of unique elements. Your algorithm s time complexitymust beb ...
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Given a non-empty array of integers, return the k most frequent elements. Example 1: Example 2: Note: You may assume k is always ...
更多 LeetCode 题解笔记可以访问我的 github。 目录 描述 解法一:排序算法(不满足时间复杂度要求) Java 实现 Python 实现 复杂度分析 解法二:最小堆 思路 ...
Given a non-empty array of integers, return the k most frequent elements. For example,Given [1,1,1,2,2,3] and k = 2, return [1,2]. Note ...
Given a non-empty list of words, return the k most frequent elements. Your answer should be sorted by frequency from highest to lowest. ...
LeetCode:前K个高频单词【692】 题目描述 给一非空的单词列表,返回前 k 个出现次数最多的单词。 返回的答案应该按单词出现频率由高到低排序。如果不同的单词有相同出现频率,按字母顺序排序。 示例 1: 示例 2: 注意: 假定 k 总为有效值 ...
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 1: 示例 2: TopK的问题,思路就是用堆来解决。 先以前K个元素构建一个大小为K的小顶堆,然后从K个元素之后,遍历从索引在K后面的元素 ...
Given a sorted array, two integers k and x, find the k closest elements to x in the array. The result should also be sorted in ascending order. ...
You have k lists of sorted integers in ascending order. Find the smallest range that includes at least one number from each of the k lists. We ...