We proceed to analysis the creating prospect of mining field at this proper minute according to the mechanical establishing prosperity and tendency. T...
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其他好文 时间:
2014-09-02 15:29:04
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238
Sorting is one of the most usedoperations in real life, where Computer Science comes into act. It iswell-known that the lower bound of swap based sorting is nlog(n).It means that the best possible sor...
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其他好文 时间:
2014-09-01 10:50:23
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234
此题中起点有1000个,别有20000条。用链式前向星建图,再枚举起点用SPFA的话,超时了。(按理说,两千万的复杂度应该没超吧。不过一般说计算机计算速度 1~10 千万次/秒。也许拿最烂的计算机来卡时间) 有一个技巧,加一个超级源点。也就是加一个点,使得该点连通所有的起点,并且边的权值为0。...
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其他好文 时间:
2014-09-01 00:25:02
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295
Best Time to Buy and Sell StockTotal Accepted:14044Total Submissions:45572My SubmissionsSay you have an array for which theithelement is the price of ...
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其他好文 时间:
2014-08-31 14:30:51
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249
题目要求:最多交易两次,并且只能买卖完之后再买。总思路:在数组中找一个适当的点i,使得profit之和最大。思路:1、从左往右扫描,left[i]记录包括i元素以内的左部的maxprofit,用Best Time to Buy and Sell Stock 1可得到。2、从右往左扫描,right[i...
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其他好文 时间:
2014-08-31 13:13:21
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171
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
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其他好文 时间:
2014-08-31 13:05:01
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Best FinancingTime Limit: 20000/10000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 148Accepted Submission(s): 35Probl...
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其他好文 时间:
2014-08-31 11:51:11
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301
Go is one of the best tools out there today for heavy lifting and backend code. It’s my go to language when it’s time to bring out the big guns and I enjoy working with it immensely. That being ...
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其他好文 时间:
2014-08-30 12:44:39
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223
1640: [Usaco2007 Nov]Best Cow Line 队列变换Time Limit:5 SecMemory Limit:64 MBSubmit:493Solved:253[Submit][Status]DescriptionFJ打算带着他可爱的N (1 ≤ N ≤ 2,000)头奶牛...
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其他好文 时间:
2014-08-30 01:12:58
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317