1、题目描述 Given a string, sort it in decreasing order based on the frequency of characters. Example 1: Input: "tree" Output: "eert" Explanation: 'e' appears twice while 'r' and 't' both appear once. So 'e' must a
Given a string s, sort it in decreasing order based on the frequency of the characters. The frequency of a character is the number of times it appears in the string. Return the sorted string. If there are multiple answers, return any of them. 给定一个字符串,请将字符串里的字符按照出现的...
Given a string, sort it in decreasing order based on the frequency of characters. Example 1: Input: “tree” Output: “eert” Explanation: ‘e’ appears twice while ‘r’ and ‘t’ both appear once. So ‘e’ must appear before both ‘r’ and ‘t’. Therefore “eetr” is also a ...
Given a string s, sort it in decreasing order based on the frequency of characters, and return the sorted string. Example 1: Input: s = "tree" Output: "eert" Explanation: 'e' appears twice while 'r' and 't' both appear once. So 'e' must appear before both 'r' and 't'. There...
Leetcode: Sort Characters By Frequency Given a string, sort it in decreasing order based on the frequency of characters. Example1: Input:"tree"Output:"eert"Explanation:'e' appears twicewhile'r' and 't'both appear once. So'e' must appear before both 'r' and 't'. Therefore "eetr"is ...
Given a string, sort it in decreasing(降序) order based on the frequency(频率) of characters. Example 1: Input: "tree" Output: "eert" Explanation: 'e' appears twice while 'r' and 't' both appear once. So 'e' must appear before both 'r' and 't'. Therefore "eetr" is also a ...
leetcode题目: Sort Characters By Frequency 的C语言解法 题目的链接 Given a string, sort it in decreasing order based on the frequency of characters. Example 1: Input: “tree” Output: “eert” Explanation:’e’ appears twice while ......
https://leetcode.cn/problems/sort-characters-by-frequency 给定一个字符串 s ,根据字符出现的 频率 对其进行 降序排序 。一个字符出现的 频率 是它出现在字符串中的次数。 返回 已排序的字符串 。如果有多个答案,返回其中任何一个。 示例1: 输入: s = "tree" ...
Can you solve this real interview question? Sort Characters By Frequency - Given a string s, sort it in decreasing order based on the frequency of the characters. The frequency of a character is the number of times it appears in the string. Return the s
Since we can rearrange the substring, all we care about is the frequency of each character in that substring. 提示2 How to find the character frequencies efficiently ? 提示3 As a preprocess, calculate the accumulate frequency of all characters for all prefixes of the string. 提示4 How to...