Combination Sum IGiven a set of candidate
numbers (C) and a target number (T), find all unique combinations in C where the
candidate numbers sums to T...
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其他好文 时间：
2014-05-19 16:41:14
阅读次数：
269
A linked list is given such that each node
contains an additional random pointer which could point to any node in the list
or null.Return a deep copy ...
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其他好文 时间：
2014-05-19 15:50:28
阅读次数：
447
我的环境是ubuntu14.04安装scrapy，我使用pip
安装如果你还没安装pip，用下面命令安装sudo apt-get install python-pip然后使用pip来安装python相关的库扩展pip
install scrapy不过出现错误error: could not cre....
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其他好文 时间：
2014-05-19 15:19:27
阅读次数：
364
【题目】
Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution.
For example, given array S = {...
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其他好文 时间：
2014-05-18 10:37:57
阅读次数：
269
【题目】
Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array which gives the sum of target.
Note:
Elements in a quadruplet (a,b,c,d) must be in non-descending ord...
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其他好文 时间：
2014-05-18 08:46:04
阅读次数：
227
【题目】
Given a digit string, return all possible letter combinations that the number could represent.
A mapping of digit to letters (just like on the telephone buttons) is given below.
Input:Digit string "23"
Output: ["ad", "ae", "af", "bd", "be", "bf",...
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其他好文 时间：
2014-05-18 07:30:12
阅读次数：
340
org.apache.ibatis.exceptions.PersistenceException:
### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is o...
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数据库 时间：
2014-05-18 06:19:21
阅读次数：
547
3SumClosest
Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution....
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其他好文 时间：
2014-05-18 05:57:48
阅读次数：
244
【题目】
Write a function to find the longest common prefix string amongst an array of strings.
【题意】
求一组字符串的最长公共前缀
【思路】
使用归并思想求解
要求字符串[1,2,..,k,k+1,...n]的最大公共前缀，先分别求[1,2,...k]和[k+1,...,n]的公共前缀...
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其他好文 时间：
2014-05-18 05:17:53
阅读次数：
232
【题目】
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero.
Note:
Elements in a triplet (a,b,c) must be in non-descending order. (ie, a ≤ b ≤ c)
The so...
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其他好文 时间：
2014-05-18 03:15:50
阅读次数：
287
