题目： Implement a trie with insert, search, and startsWith methods. Note:You may assume that all inputs are consist of lowercase letters a-z. 题意及分析：实现一个 ...
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编程语言 时间：
2017-07-31 19:55:04
阅读次数：
131
An anagram of a string is any string that can be formed using the same letters as the original. (We consider the original string an anagram of itself ...
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其他好文 时间：
2017-07-31 14:31:32
阅读次数：
219
A message containing letters from A-Z is being encoded to numbers using the following mapping: Given an encoded message containing digits, determine t ...
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其他好文 时间：
2017-07-30 18:12:05
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154
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo... ...
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其他好文 时间：
2017-07-30 12:47:36
阅读次数：
87
Surprising Strings Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 7225 Accepted: 4663 Description The D-pairs of a string of letters are t ...
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其他好文 时间：
2017-07-29 20:25:32
阅读次数：
129
Given a digit string, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telepho ...
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其他好文 时间：
2017-07-29 18:55:16
阅读次数：
141
Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyboard like the image below. Examp ...
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其他好文 时间：
2017-07-27 22:38:51
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208
The D-pairs of a string of letters are the ordered pairs of letters that are distance D from each other. A string is D-unique if all of its D-pairs ar ...
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其他好文 时间：
2017-07-26 09:40:54
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117
Make a program that filters a list of strings and returns a list with only your friends name in it. If a name has exactly 4 letters in it, you can be ...
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其他好文 时间：
2017-07-25 12:33:50
阅读次数：
200
