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:
...
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其他好文 时间：
2014-06-05 00:34:06
阅读次数：
240
最近在用QDeclarativeItem的继承来做Qt界面的控件，一开始发现怎么样也没法自动调用paint函数，后来查看了资料，发现如下字句：
You can subclass QDeclarativeItem to provide your own custom visual
item that inherits these features. Note that, because it ...
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其他好文 时间：
2014-06-04 23:47:17
阅读次数：
511
【题目】
Validate if a given string is numeric.
Some examples:
"0" => true
" 0.1 " => true
"abc" => false
"1 a" => false
"2e10" => true
Note: It is intended for the problem statement to be ambiguous. You should gather all requirements up front before imple...
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其他好文 时间：
2014-06-04 23:45:09
阅读次数：
388
1、
??
Construct Binary Tree from Inorder and Postorder Traversal
Given inorder and postorder traversal of a tree, construct the binary tree.
Note:
You may assume that duplicates do not exist in...
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其他好文 时间：
2014-06-03 03:13:59
阅读次数：
195
早上做数据迁移，部署完slave2,发现3台机子的日志狂刷：旧slave：2014-05-29 14:35:35 996 [Note] Slave: received end packet from server, apparent master shutdown:
2014-05-29 14:35:35 996 [Note] Slave I/O thread: Failed reading l...
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其他好文 时间：
2014-06-03 01:52:25
阅读次数：
327
【题目】原文：1.3 Design an algorithm and write code
to remove the duplicate characters in a string without using any additional
buffer. NOTE: One or two add...
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其他好文 时间：
2014-06-02 21:32:04
阅读次数：
284
【题目】
Given two sorted integer arrays A and B, merge B into A as one sorted array.
Note:
You may assume that A has enough space (size that is greater or equal to m + n) to hold additional elements from B. The number of elements initialized in A and B are...
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其他好文 时间：
2014-06-01 09:21:16
阅读次数：
292
Description
Some strange code is sent to Da Shan High School. It's said to be the prophet's note. The note is extremely hard to understand. However, Professor Meng is so smart that he successfully ...
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其他好文 时间：
2014-06-01 09:18:38
阅读次数：
246
【题目】
Given a collection of integers that might contain duplicates, S, return all possible subsets.
Note:
Elements in a subset must be in non-descending order.
The solution set must not contain duplicate subsets.
For example,
If S = [1,2,2], a solution ...
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其他好文 时间：
2014-06-01 08:51:06
阅读次数：
292
Optional: Get, Compile, Install QWT 5.0.0 (or
newer): * NOTE: You should not need to set the environment variables “QTDIR” or
“QWT_CFLAGS”, so leave t...
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系统相关 时间：
2014-05-31 20:53:04
阅读次数：
500
