StreamChecker(words): Constructor, init the data structure with the given words. query(letter): returns true if and only if for somek >= 1, the lastkcharacters queried (in order from oldest to newest, including this letter just queried) spell one of the words in the given list. Example...
[leetcode] 1032: Stream of Characters: Tries&AC自动机 其实这道题好像大部分人都直接用Tries倒序来解,但我觉得AC自动机可能更高效一点(毕竟是在Tries基础上优化的算法如果还不如原始Tries似乎说不过去)。 根据定义写了个原始的在堆上创建树形结构的solution但好像性能并不是很乐观。另外一些用AC解的dalao好像是...
Leetcode: Stream of Characters Implement the StreamCheckerclassas follows: StreamChecker(words): Constructor, init the data structure with the given words. query(letter): returnstrueifand onlyifforsome k >= 1, the last k characters queried (in order from oldest to newest, includingthisletter j...
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/** @lc app=leetcode id=1032 lang=cpp** [1032] Stream of Characters** https://leetcode.com/problems/stream-of-characters/description/** algorithms* Hard (42.81%)* Likes: 130* Dislikes: 32* Total Accepted: 7.3K* Total Submissions: 16.9K* Testcase Example: '["StreamChecker","query",...
Stream流中有一个static <T><T> of(T... values) 通过数组获取: (Stream.of(arr)) 通过直接给多个数据的方式 函数拼接与终结方法 在上述介绍的各种方法中,凡是返回值仍然为Stream接口的为函数拼接方法,它们支持链式调用;而返回值不再为Stream接口的为终结方法,不再支持链式调用。如下表所示: ...
原题链接在这里:https://leetcode.com/problems/stream-of-characters/ 题目: Implement theStreamCheckerclass as follows: StreamChecker(words): Constructor, init the data structure with the given words. query(letter): returns true if and only if for somek >= 1, the lastkcharacters queried (in ...
【leetcode】1032. Stream of Characters 题目如下: Implement theStreamCheckerclass as follows: StreamChecker(words): Constructor, init the data structure with the given words. query(letter): returns true if and only if for somek >= 1, the lastkcharacters queried (in order from oldest to ...
用字典树即可解决。首先在init的时候,把words中所有word逆置后存入字典树中;在query的时候,也有逆序的方式记录所有历史query过的值,同时判断其前缀是否存在于字典树中即可。 functionNode() {this.children= {} }classStreamChecker{constructor(words) {this.history=''this.root=newNode;for(letwordofwords) {this...
Leetcode: Stream of Characters Implement the StreamCheckerclassas follows: StreamChecker(words): Constructor, init the data structure with the given words. query(letter): returnstrueifand onlyifforsome k >= 1, the last k characters queried (in order from oldest to newest, includingthisletter ...