链接: http://acm.hrbust.edu.cn/index.php?m=ProblemSet&a=showProblem&problem_id=2113
Description
Given a number of strings, can you find how many strings that appears T times?
Input
The input conta...
分类:
编程语言 时间:
2014-06-20 09:00:14
阅读次数:
344
You are climbing a stair case. It takesnsteps
to reach to the top.Each time you can either climb 1 or 2 steps. In how many
distinct ways can you climb...
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其他好文 时间:
2014-06-10 08:41:34
阅读次数:
206
Given an infinite number of quarters (25 cents),
dimes (10 cents), nickels (5 cents) and pennies (1 cent), find how many ways to
represent n cents.思路:...
分类:
其他好文 时间:
2014-06-09 20:04:56
阅读次数:
238
题目
Given n, how many structurally unique BST's (binary search trees) that store values 1...n?
For example,
Given n = 3, there are a total of 5 unique BST's.
1 3 3 2 ...
分类:
其他好文 时间:
2014-06-08 17:06:58
阅读次数:
235
There is no denying theWhat The KD 6is among
the most widely used athletic shoes available. Because of so many great releases
such as the Aunt Gem KD ...
分类:
其他好文 时间:
2014-06-08 01:12:23
阅读次数:
343
Follow up for "Unique Paths":Now consider if
some obstacles are added to the grids. How many unique paths would there be?An
obstacle and empty space i...
分类:
其他好文 时间:
2014-06-08 00:33:42
阅读次数:
339
Open vSwitch Advanced Features
Tutorial=======================================Many tutorials cover the basics
of OpenFlow. This is not such atutorial....
分类:
其他好文 时间:
2014-06-07 08:56:17
阅读次数:
282
For many SQL-related problems, obtaining a
reproducible test case makes it easier to resolve the problem. Starting with the
11gRelease 2 (11.2), Oracl...
分类:
数据库 时间:
2014-06-06 20:04:05
阅读次数:
317
在使用swftools转换pdf 到swf的时候报错,有如下说明:if the pdf
contains too many images / shapes, pdf2swf will fail with this error :ERROR
Thisfileistoocomplextorender-S...
分类:
其他好文 时间:
2014-06-05 21:24:54
阅读次数:
310
域模型:
关系数据模型
n-n 的关联必须使用连接表与 1-n 映射类似,必须为 set 集合元素添加 key 子元素,指定 CATEGORIES_ITEMS 表中参照 CATEGORIES 表的外键为 CATEGORIY_ID. 与 1-n 关联映射不同的是,建立 n-n 关联时, 集合中的元素使用 many-to-many. many-to-many 子元素的 class 属性指...
分类:
系统相关 时间:
2014-06-01 18:20:52
阅读次数:
560