Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example:Given "25525511135",return ["25...
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其他好文 时间：
2015-01-22 15:21:34
阅读次数：
108
Given a string, find the length of the longest substring T that contains at most 2 distinct characters.For example, Given s = “eceba”,T is "ece" which...
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其他好文 时间：
2015-01-22 14:52:17
阅读次数：
134
The API: int read4(char *buf) reads 4 characters at a time from a file.The return value is the actual number of characters read. For example, it retur...
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其他好文 时间：
2015-01-22 08:13:46
阅读次数：
487
Given a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid.The brackets must close in the correct ...
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其他好文 时间：
2015-01-21 23:56:00
阅读次数：
280
Implement wildcard pattern matching with support for '?' and '*'.
'?' Matches any single character.
'*' Matches any sequence of characters (including the empty sequence).
The matching should cover t...
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其他好文 时间：
2015-01-21 15:21:59
阅读次数：
184
标题：Valid Palindrome通过率：21.9%难度：简单Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For exam...
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其他好文 时间：
2015-01-21 10:09:24
阅读次数：
171
Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n).For example,S="ADOBECODEBA...
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编程语言 时间：
2015-01-21 06:35:47
阅读次数：
255
The problem:Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a plan, a...
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其他好文 时间：
2015-01-21 06:34:49
阅读次数：
192
Valid NumberValidate if a given string is numeric.Some examples:"0"=>true" 0.1 "=>true"abc"=>false"1 a"=>false"2e10"=>trueNote:It is intended for the ...
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其他好文 时间：
2015-01-20 23:29:44
阅读次数：
329
题目：
Given a string s and a dictionary of words dict, add spaces in s to construct a sentence where each word is a valid dictionary word.
Return all such possible sentences.
For example, given...
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编程语言 时间：
2015-01-20 22:22:42
阅读次数：
241
