Given a non-empty array of integers,returnthe k most frequent elements. For example, Given [1,1,1,2,2,3] and k = 2,return[1,2]. Note: You may assume k is always valid,1≤ k ≤ number of unique elements. Your algorithm's time complexity must be better than O(n log n), whe...
347. Top K Frequent ElementsMedium Topics Companies Given an integer array nums and an integer k, return the k most frequent elements. You may return the answer in any order. Example 1: Input: nums = [1,1,1,2,2,3], k = 2 Output: [1,2] Example 2: Input: nums = [1], k ...
Given a non-empty array of integers, return thekmost frequent elements. Example 1: Input:nums =[1,1,1,2,2,3], k =2Output:[1,2] Example 2: Input:nums =[1], k =1Output:[1] Note: You may assumekis always valid, 1 ≤k≤ number of unique elements. Your algorithm's time comp...
Top K Frequent Elements】 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]. 其实最简单的就是想到就是用一个小顶堆实现,如果堆中元素个数小于K,则插入元素,如果大于......
Top K Frequent Elements Given a non-empty array of integers, return the k most frequent elements. Example 1: Input: nums = [1,1,1,2,2,3], k = 2 Output: [1,2] Example 2: Input: nums = [1], k = 1 Output: [1] 不写也会忘 Queue heap =......
[leetcode] 347. Top K Frequent Elements Description Given a non-empty array of integers, return the k most frequent elements. Example 1: Input: AI检测代码解析 nums = [1,1,1,2,2,3], k = 2 1. Output: AI检测代码解析 [1,2]
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: You may assume k is always valid, 1 ≤ k ≤ number of unique elements. Your algorithm’s time complexity must be better than O(n log...
class Solution: def topKFrequent(self, nums: List[int], k: int) -> List[int]: # 统计 nums 中每个数字出现的次数, # 时间复杂度为 O(n) ,空间复杂度为 O(n) num_to_cnt = Counter(nums) #将 num_to_cnt 中的数字及其出现次数收集到数组中, # 时间复杂度为 O(n) ,空间复杂度为 O(n)...
[LeetCode] Top K Frequent Elements 简介: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: You may assume k is always valid, 1 ≤ k ≤ num...
https://leetcode.com/problems/k-closest-points-to-origin/ https://leetcode.com/problems/kth-largest-element-in-an-array/ https://leetcode.com/problems/kth-smallest-element-in-a-bst/ https://leetcode.com/problems/top-k-frequent-elements/ ...