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摘要: How many prime numbers Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5139 Accepted Submission(s): 1684 Problem Description Give you a lot of... 阅读全文
posted @ 2013-04-06 00:44 姜楠 阅读(198) 评论(0) 推荐(0) 编辑
摘要: 最小公倍数 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 2010 Accepted Submission(s): 1543 Problem Description 给定两个正整数,计算这两个数的最小公倍数。 I... 阅读全文
posted @ 2013-04-06 00:17 姜楠 阅读(292) 评论(0) 推荐(0) 编辑
摘要: Beat Time Limit: 6000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 304 Accepted Submission(s): 199 Problem Description Zty is a man that ... 阅读全文
posted @ 2013-04-05 23:12 姜楠 阅读(205) 评论(0) 推荐(0) 编辑
摘要: 并查集系列题目:http://acm.hdu.edu.cn/problemclass.php?id=721 畅通工程 Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 20380 Accepted Submission(s): 105... 阅读全文
posted @ 2013-04-05 00:59 姜楠 阅读(169) 评论(0) 推荐(0) 编辑
摘要: 最短路Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 18542 Accepted Submission(s): 7897 Proble... 阅读全文
posted @ 2013-04-04 00:28 姜楠 阅读(156) 评论(0) 推荐(0) 编辑
摘要: 畅通工程续Time Limit: 3000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 17034Accepted Submission(s): 5832Problem Desc... 阅读全文
posted @ 2013-04-03 23:58 姜楠 阅读(287) 评论(0) 推荐(0) 编辑
摘要: 设B0=1,当k>0时,定义这些Bi(i=0, 1,…, k)被称为伯努利数。按定义,自然得出:B1=-,B2=,B3=0,B4=-,B5=0,B6=,B7=0,B8=-,…。伯努利数是瑞士数学家雅各布·伯努利引入的数,出自于他的著作《猜度术》(1713)。除了B1外,当k为奇数时,Bk=0;当k为偶数时,B2, B6, B10,…是正分数;B4, B8, B12,…是负分数。雅各布·伯努利引入伯努利数的目的是解决所谓“等幂和”的问题:求Sk(n)=1k+2k+…+nk对于S1(n)=1+2+3+…+n=n(n+1)S2(n)=12+22+32+…+n2=n(n+1)(2n 阅读全文
posted @ 2013-03-30 23:55 姜楠 阅读(8502) 评论(0) 推荐(0) 编辑
摘要: The Grand DinnerTime Limit:5000MSMemory Limit:Unknown64bit IO Format:%lld & %llu[Submit] [Go Back] [Status]DescriptionProblem D The Grand DinnerInput... 阅读全文
posted @ 2013-03-23 00:38 姜楠 阅读(546) 评论(0) 推荐(0) 编辑
摘要: Problem C Add Again Input:Standard InputOutput:Standard OutputSummation of sequence of integers is always a common problem in Computer Science. Rather than computing blindly, some intelligent techniques make the task simpler. Here you have to find the summation of a sequence of integers. The sequenc 阅读全文
posted @ 2013-03-16 00:40 姜楠 阅读(269) 评论(0) 推荐(0) 编辑
摘要: Sum of Cubes Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 815 Accepted Submission(s): 182 Problem Description According to Goldbach’s conjecture... 阅读全文
posted @ 2013-03-15 00:02 姜楠 阅读(264) 评论(0) 推荐(0) 编辑
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