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.
In...
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其他好文 时间：
2014-06-18 12:03:16
阅读次数：
227
Given two integers n and k, return all possible combinations of k numbers out of 1 ... n.
For example,
If n = 4 and k = 2, a solution is:
[
[2,4],
[3,4],
[2,3],
[1,2],
[1,3],
[1,4],
]...
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其他好文 时间：
2014-06-18 11:41:52
阅读次数：
156
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 ele...
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其他好文 时间：
2014-06-17 23:05:13
阅读次数：
246
题目
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.
For example, given n = 3, a solution set is:
"((()))", "(()())", "(())()", "()...
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其他好文 时间：
2014-06-17 22:59:06
阅读次数：
223
Structural Things
An
active class is a class whose objects own one or
more processes or threads and therefore can initiate control activity. An active class is just like a class except that it...
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其他好文 时间：
2014-06-17 22:44:27
阅读次数：
310
Behavioral things
are the dynamic parts of UML models. These are the verbs of a model, representing behavior over time and space. In all, there are three primary kinds of behavioral things.
行...
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其他好文 时间：
2014-06-17 21:47:37
阅读次数：
315
题目
Merge k sorted
linked lists and return it as one sorted list. Analyze and describe its complexity.
方法
使用归并排序的思想，两两合并，直到最终变成一个。
public ListNode mergeKLists(ArrayList lists) {...
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其他好文 时间：
2014-06-17 21:34:41
阅读次数：
183
webqq获得好友列表的hash算法，大约每个月中旬会变动一次。知道怎么获得他就可以了。
js文件路径 http://web.qstatic.com/webqqpic/pubapps/0/50/eqq.all.js
加密算法为 P=function(b,i)，有时候是 P=function(b,j)
直接打开这个文件后搜索P=function，有两个参数的就是。
把函数体拷贝下来后百度 js格式化工具，把内容放进去，格式化一下。...
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Web程序 时间：
2014-06-17 19:05:37
阅读次数：
267
??
First, a
dependency is a semantic relationship between two model elements in which a change to one element
(the independent one) may affect the semantics of the other element (the dependent on...
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其他好文 时间：
2014-06-17 18:50:36
阅读次数：
182
??
Common Divisions
In modeling object-oriented systems, the world often gets divided in several ways.
First, there is the division of class and object. A class is an abstraction; an object is one ...
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其他好文 时间：
2014-06-17 16:25:38
阅读次数：
322
