Given a 2D board and a list of words from the dictionary, find all words in the board.Each word must be constructed from letters of sequentially adjac...
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编程语言 时间：
2015-06-09 21:26:18
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163
Implement a trie with insert, search, and startsWith methods. Note:You may assume that all inputs are consist of lowercase letters a-z.解题思路：参考百度百科：Tri...
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编程语言 时间：
2015-06-09 19:31:02
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135
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：
2015-06-09 16:59:44
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135
message containing letters fromA-Zis being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26Given an encoded message contain...
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其他好文 时间：
2015-06-09 08:28:19
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116
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for “abcabcbb” is “abc”, which the length is 3. For “...
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其他好文 时间：
2015-06-08 17:32:43
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136
Problem DescriptionEach course grade is one of the following five letters: A, B, C, D, and F. (Note that there is no grade E.) The grade A indicates s...
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其他好文 时间：
2015-06-06 18:09:14
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100
题目：
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which
the length is...
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其他好文 时间：
2015-06-06 14:57:54
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120
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：
2015-06-06 10:25:13
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115
一：Implement Trie (Prefix Tree)
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.
分析：此题是典型的trie树，...
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其他好文 时间：
2015-06-05 22:42:59
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182
题目：A message containing letters fromA-Zis being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26Given an encoded message co...
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其他好文 时间：
2015-06-04 15:41:42
阅读次数：
112
