```javascript function Node() { this.endCount = 0 this.word = '' this.children = {} } class Tire { constructor() { this.root = new Node() } addWord... ...
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其他好文 时间:
2019-12-28 22:44:48
阅读次数:
65
一眼看出是使用回溯法。 javascript function findWords(board, words) { var rows = board.length, cols = board[0].length, res = [] var visited = new Array(rows).fill ...
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其他好文 时间:
2019-12-27 00:32:31
阅读次数:
136
Problem Statement Given a list of words and two words word1 and word2, return the shortest distance between these two words in the list. Example: Assu ...
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其他好文 时间:
2019-12-26 09:31:42
阅读次数:
87
Google "how many words does a native speaker know" 一、an average of 20,000 to 30,000 vocabulary words ①Even with intensive study, how many words do non ...
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其他好文 时间:
2019-12-25 01:37:36
阅读次数:
178
Description Given a board which is a 2D matrix includes a-z and dictionary dict, find the largest collection of words on the board, the words can not ...
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其他好文 时间:
2019-12-22 00:39:36
阅读次数:
70
Description Given a set of words without duplicates, find all word squares you can build from them. A sequence of words forms a valid word square if t ...
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其他好文 时间:
2019-12-22 00:37:08
阅读次数:
86
Description Description Given two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is count ...
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其他好文 时间:
2019-12-21 22:27:54
阅读次数:
111
Given a matrix of lower alphabets and a dictionary. Find all words in the dictionary that can be found in the matrix. A word can start from any positi ...
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其他好文 时间:
2019-12-21 11:45:03
阅读次数:
100
"?? ?? ??" 题意:给你一些序列,要求把这些序列翻转之后能首尾相连(01,10),并且字符串不能相同,询问最小步数; 1.我们只关心这个字符串 首尾位置 ,一共只有四种情况:00,01,10,11;00 和 11 是没必要翻转的,剩下 01,10 只要存在就可以相互抵消(0110,1001这 ...
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其他好文 时间:
2019-12-18 21:39:19
阅读次数:
94