Longest Common PrefixWrite a function to find the longest common prefix string amongst an array of strings.Solution：public class Solution { public ...
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其他好文 时间：
2014-06-30 12:18:25
阅读次数：
255
题目
Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.
Note: You can only move either down...
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其他好文 时间：
2014-06-30 11:10:34
阅读次数：
211
题目
Given two words word1 and word2, find the minimum number of steps required to convert word1 to word2. (each operation is counted as 1 step.)
You have the following 3 operations permitte...
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其他好文 时间：
2014-06-30 00:46:38
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262
【题目】
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory?
【题意】
给定一个整数以外，其中除了一个整数只出现一次以外...
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其他好文 时间：
2014-06-29 22:52:35
阅读次数：
246
题目
Given an unsorted array of integers, find the length of the longest consecutive elements sequence.
For example,
Given [100, 4, 200, 1, 3, 2],
The longest consecutive elements sequence...
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其他好文 时间：
2014-06-29 22:16:48
阅读次数：
239
find命令
find pathname -options [-print -exec -ok ...]
-print： find命令将匹配的文件输出到标准输出。
-exec： find命令对匹配的文件执行该参数所给出的shell命令。相应命令的形式为'command' { } \;，注意{ }和\；之间的空格。
-ok： 和-exec的作用相同，只不过以一种更...
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系统相关 时间：
2014-06-29 20:48:34
阅读次数：
355
题目
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 = "ADOBECODEBANC"
T = "ABC"
Minimum wi...
Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest pa...
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其他好文 时间：
2014-06-29 20:28:58
阅读次数：
183
def new # @foo = Foo.new @foos = Foo.find(:all,:conditions=>["project_id = #{@project.id}"]) @foolist = @foos.map do |f| { :id => f.id...
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其他好文 时间：
2014-06-29 20:19:48
阅读次数：
437
#include#includechar *find_char(char const *source_str, char const *desc_str);int main(void){ char *source_str = "ABCDEF"; char *desc_str = "MMD...
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其他好文 时间：
2014-06-29 19:32:34
阅读次数：
171
