In English, we have a concept called root, which can be followed by some other words to form another longer word - let's call this word successor. For example, the root an, followed by other, which can form another word another. Now, given a dictiona…

原题链接在这里:https://leetcode.com/problems/replace-words/description/ 题目: In English, we have a concept called root, which can be followed by some other words to form another longer word - let's call this word successor. For example, the root an, followed…

To some string S, we will perform some replacement operations that replace groups of letters with new ones (not necessarily the same size). Each replacement operation has 3 parameters: a starting index i, a source word x and a target word y.  The rul…

原题链接在这里:https://leetcode.com/problems/replace-the-substring-for-balanced-string/ 题目: You are given a string containing only 4 kinds of characters 'Q', 'W', 'E' and 'R'. A string is said to be balanced if each of its characters appears n/4 times where…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 set 字典 前缀树 日期 题目地址:https://leetcode.com/problems/replace-words/description/ 题目描述 In English, we have a concept called root, which can be followed by some other words to form an…

[LeetCode]833. Find And Replace in String 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/find-and-replace-in-string/description/ 题目描述: To some string S, we will perform some…

题目标签:HashMap 题目给了我们一个array 的 root, 让我们把sentence 里面得每一个word 去掉它得 successor. 把每一个root 存入hash set,然后遍历sentence 里面得每一个 word, 从index 1 开始遍历 如果有找到这个root,就把这个word 替换掉.具体看code. Java Solution: Runtime: 158 ms, faster than 25.65% Memory Usage: 50.3 MB, less th…

You have a list of words and a pattern, and you want to know which words in words matches the pattern. A word matches the pattern if there exists a permutation of letters p so that after replacing every letter x in the pattern with p(x), we get the d…

To some string S, we will perform some replacement operations that replace groups of letters with new ones (not necessarily the same size). Each replacement operation has 3 parameters: a starting index i, a source word x and a target word y. The rule…

题目如下: You are given a string containing only 4 kinds of characters 'Q', 'W', 'E' and 'R'. A string is said to be balanced if each of its characters appears n/4 times where n is the length of the string. Return the minimum length of the substring that…