Description
You are a butler in a large mansion. This mansion has so many rooms that they are merely referred to by number (room 0, 1, 2, 3, etc...). Your master is a particularly absent-minded lou...
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其他好文 时间：
2015-08-19 14:56:20
阅读次数：
101
1006. Sign In and Sign Out (25)At the beginning of every day, the first person who signs in the computer room will unlock the door, and the last one w...
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其他好文 时间：
2015-08-03 20:38:16
阅读次数：
104
根据题意略推一下，其实就是问你满足(a*(a+1))/2 using namespace std;typedef long long ll;int main(){ int T; scanf("%d",&T); for(int k = 1; k > 1; b1 ...
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其他好文 时间：
2015-07-27 20:34:41
阅读次数：
95
Problem F. Door LockTime Limit: 20 SecMemory Limit: 256 MB题目连接http://codeforces.com/gym/100500/attachmentsDescriptionIt was a beautiful night at Yekat...
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其他好文 时间：
2015-07-27 20:30:48
阅读次数：
149
Door Man
Time Limit: 1000MS
Memory Limit: 10000K
Total Submissions: 2449
Accepted: 983
Description
You are a butler in a large mansion. This mansion has so many rooms...
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其他好文 时间：
2015-07-16 11:50:33
阅读次数：
197
Network designers use firewalls to protect networks from unauthorized use. Consider a lock on a door to a room inside a building. The lock allows only...
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数据库 时间：
2015-07-14 09:46:57
阅读次数：
223
语法层次的我就不介绍了，下面从设计层面谈一下区别。考虑这样一个例子，假设在我们的问题领域中有一个关于Door的抽象概念，该Door具有执行两个动作open和close，此时我们可以通过abstract class或者interface来定义一 个表示该抽象概念的类型，定义方式分别如下所示：使用abs...
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编程语言 时间：
2015-07-11 19:55:25
阅读次数：
142
原文 After I had lunch at a village pub, I looked for my bag. I had left it on a chair beside the door and now it wasn‘t there! As I was looking for it, the landlord came in. "Did you have a good m...
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其他好文 时间：
2015-07-05 17:03:00
阅读次数：
111
1、删除orcale重复数据，delete from da_door awhere (a.dt,a.key1) in (select dt,key1 from da_door group by dt,key1 having count(*) > 1)and rowid not in (select ...
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其他好文 时间：
2015-07-01 15:43:02
阅读次数：
115
