P是一类可以通过确定性图灵机(以下简称 图灵机)在多项式时间(Polynomial time)内解决的问题集合。NP是一类可以通过非确定性图灵机(Non-deterministic Turing Machine)在多项式时间(Polynomial time)内解决的决策问题集合。P是NP的子集,也就...
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其他好文 时间:
2015-01-26 16:31:21
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150
得到当前的时间戳import time#得到float类型 1422258513.05now = time.time()#得到整数型时间戳 1422258513nowi = int(now)http://www.cnblogs.com/wanpython/archive/2010/08/...
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编程语言 时间:
2015-01-26 16:25:56
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163
Round Numbers
Time Limit: 2000MS
Memory Limit: 65536K
Total Submissions: 9565
Accepted: 3433
Description
The cows, as you know, have no fingers or thumbs and thus are...
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其他好文 时间:
2015-01-26 15:14:31
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161
Flip Game
Time Limit:1000MS Memory Limit:65536KB 64bit IO Format:%I64d
& %I64u
Submit Status
Description
Flip game is played on a rectangular 4x4 field with two-sided piec...
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其他好文 时间:
2015-01-26 15:10:30
阅读次数:
167
Command Network
Time Limit: 1000MS
Memory Limit: 131072K
Total Submissions: 13609
Accepted: 3925
Description
After a long lasting war on words, a war on arms finally ...
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Web程序 时间:
2015-01-26 15:08:57
阅读次数:
208
B - Weapon Time Limit:1000MS Memory Limit:32768KB 64bit IO Format:%lld & %lluSubmit StatusDescriptionIn World War 3, your countries' scientists have i...
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编程语言 时间:
2015-01-26 15:01:46
阅读次数:
308
1 public Timestamp strToDate(int type){ 2 Timestamp time = null; 3 DateFormat format2= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"...
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编程语言 时间:
2015-01-26 14:52:34
阅读次数:
275
英文: This tutorial will walk you through the process of building a MINA based program. This tutorial will walk through building a time server. The following prerequisites are required for this tu...
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其他好文 时间:
2015-01-26 13:49:39
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302
Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete at most two transactions. Note: You may not eng...
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编程语言 时间:
2015-01-26 13:45:27
阅读次数:
200
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4323
Magic Number
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)
Total Submission(s): 1728 Accepted Submissi...
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其他好文 时间:
2015-01-26 13:45:10
阅读次数:
116