Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?
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其他好文 时间:
2014-07-10 11:10:26
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302
class Customer < ActiveRecord::Base has_many :ordersendclass Order < ActiveRecord::Base belongs_to :customerend如上代码两个model在做如下查询的时候:c = Customer.fir.....
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其他好文 时间:
2014-07-10 10:03:57
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293
同步或者提交的时候出现问题提示The working copy needs to be upgradedsvn: Working copy 'E:\JAVA\Workspaces\uhr' is too old (format 10,created by Subversion 1.6)问题原因:项目...
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其他好文 时间:
2014-07-09 23:53:25
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299
循环同构的最小表示法。 1 #include 2 #include 3 4 #define MAXN 10005 5 #define MAXL 105 6 7 char map[MAXN][MAXL]; 8 char buf[MAXL]; 9 10 int Min_exp(char str[...
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其他好文 时间:
2014-07-07 23:06:44
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213
You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you cli...
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其他好文 时间:
2014-07-07 21:03:15
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157
使用数据连接池(TIWDataModulePool).新建工程时勾选 Pool Data Connections:新增的 Pool(TIWDataModulePool) 被放在 ServerController 的窗体上(其实它也是个数据模块), 需要知道的变化是它增加了两个函数:function ...
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数据库 时间:
2014-07-07 20:37:22
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204
The following packages should be installed:python-ibusibusibus-clutteribus-gtkibus-m17n: input many non-latin charactersibus-pinyinibus-qt4ibus-tablei...
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系统相关 时间:
2014-06-30 13:14:49
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455
1 import java.awt.event.InputEvent; 2 3 import javax.swing.KeyStroke; 4 5 /** 6 * class KeyEvent: include many static key 7 * class KeyStroke: g...
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其他好文 时间:
2014-06-30 12:46:06
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229
JAVA大数....
How Many Fibs?
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 3906 Accepted Submission(s): 1545
Problem Descri...
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其他好文 时间:
2014-06-30 09:06:32
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160