You can choose a set of integers and remove all the occurrences of these integers in the array. Return the minimum size of the set so that at least half of the integers of the array are removed. Example 1: Input: arr = [3,3,3,3,5,5,5,2,2,7] Output: 2 Explanation: Choosing ...
Given an arrayarr. You can choose a set of integers and remove all the occurrences of these integers in the array. Returnthe minimum size of the setso that at least half of the integers of the array are removed. 样例: 限制: 个人思路: 先一个字典统计所有的字符出现的个数,然后按照从大到...
【leetcode】1338. Reduce Array Size to The Half 题目如下: Given an arrayarr. You can choose a set of integers and remove all the occurrences of these integers in the array. Returnthe minimum size of the setso that at least half of the integers of the array are removed. Example 1: In...
通过array.reduce()实现数据汇总、条件筛选和映射、对象属性的扁平化、转换数据格式、聚合统计、处理树结构数据和性能优化,reduce()的使用详解(附实际应用代码)对象数据统计性能优化reduce watermelo37 2025-01-22 其中callback回调函数用于处理每个数组元素,最后返回一个累加值。 14110 MapReduce中的Map和Reduce函数分别...
LeetCode-1342. Reduce Array Size to The Half 文章分类运维 Given an array arr. You can choose a set of integers and remove all the occurrences of these integers in the array. Returnthe minimum size of the setso thatat leasthalf of the integers of the array are removed....
1. Description Reduce Array Size to The Half 2. Solution 解析:对数组中的元素个数进行统计,并按从大到小排列,一次移除一个元素,直至剩余元素个数小于等于移除的元素个数。 Version 1 classSolution:defminSetSize(self,arr:List[int])->int:stat={}n=len(arr)fornuminarr:stat[num]=stat.get(num,0)...
You are given an integer array arr. You can choose a set of integers and remove all the occurrences of these integers in the array. Return the minimum size of the set so that at least half of the integers of the array are removed. ...