随笔分类 -  数学，二分,素数

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HDU 献给杭电五十周年校庆的礼物
摘要：献给杭电五十周年校庆的礼物Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 479 Accepted Submission(s): 301Problem Description或许你曾经牢骚满腹 或许你依然心怀忧伤 或许你近在咫尺 或许你我天各一方对于每一个学子 母校 永远航行在 生命的海洋今年是我们杭电建校五十周年，这是一个值得祝福的日子。我们该送给母校一个怎样的礼物呢？对于目前的大家来说，最好的礼物当然是省赛中的好成绩，我不能参赛，就送给学 阅读全文
posted @ 2013-03-17 08:49 Jack Ge 阅读(400) 评论(0) 推荐(0) 编辑
HDU Wolf and Rabbit
摘要：Wolf and RabbitTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1289 Accepted Submission(s): 750Problem DescriptionThere is a hill with n holes around. The holes are signed from 0 to n-1.A rabbit must hide in one of the holes. A wolf searches the r 阅读全文
posted @ 2013-03-17 08:32 Jack Ge 阅读(281) 评论(0) 推荐(0) 编辑
[1271] Nth Day is Which Day
摘要：[1271] Nth Day is Which Dayhttp://ac.nbutoj.com/Problem/view.xhtml?id=1271时间限制: 1000 ms　内存限制: 65535 K问题描述The first day is 1 year 1 month 1 day, so the Nth day is which day?输入Input until EOF. Input a positive integer N means the Nth day(0#include#includeusing namespace std;int m1[12]={31,28,31,30,31, 阅读全文
posted @ 2013-03-14 19:28 Jack Ge 阅读(265) 评论(0) 推荐(0) 编辑
POJ 1019 Number Sequence
摘要：Number SequenceTime Limit:1000MSMemory Limit:10000KTotal Submissions:29413Accepted:8198DescriptionA single positive integer i is given. Write a program to find the digit located in the position i in the sequence of number groups S1S2...Sk. Each group Sk consists of a sequence of positive integer num 阅读全文
posted @ 2013-03-04 17:14 Jack Ge 阅读(226) 评论(0) 推荐(0) 编辑
HDU 1280 前m大的数
摘要：前m大的数http://acm.hdu.edu.cn/showproblem.php?pid=1280Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6323Accepted Submission(s): 2235Problem Description还记得Gardon给小希布置的那个作业么？（上次比赛的1005）其实小希已经找回了原来的那张数表，现在她想确认一下她的答案是否正确，但是整个的答案是很庞大的表，小希只想让你把答案中最大的M个数告诉 阅读全文
posted @ 2013-01-11 16:57 Jack Ge 阅读(263) 评论(0) 推荐(0) 编辑
HDU 1593 find a way to escape
摘要：find a way to escapehttp://acm.hdu.edu.cn/showproblem.php?pid=1593Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 899 Accepted Submission(s): 322 Problem Description一日，话说0068与***泛舟湖上。忽见岸边出现他的一大敌人elnil。0068当然不想落入elnil的魔爪，于是他就得想办法逃脱。这个湖是一个很规则的圆形，半径 阅读全文
posted @ 2013-01-10 17:16 Jack Ge 阅读(225) 评论(0) 推荐(0) 编辑
HDU 1492 The number of divisors(约数) about Humble Numbers
摘要：The number of divisors(约数) about Humble Numbershttp://acm.hdu.edu.cn/showproblem.php?pid=1492Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1780 Accepted Submission(s): 871 Problem DescriptionA number whose only prime factors are 2,3,5 or 7 is c 阅读全文
posted @ 2013-01-10 16:48 Jack Ge 阅读(208) 评论(0) 推荐(0) 编辑
HDU 1568 Fibonacci
摘要：Fibonaccihttp://acm.hdu.edu.cn/showproblem.php?pid=1568Time Limit: 1000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2292Accepted Submission(s): 1075Problem Description2007年到来了。经过2006年一年的修炼，数学神童zouyu终于把0到100000000的Fibonacci数列(f[0]=0,f[1]=1;f[i] = f[i-1]+f[i-2](i 阅读全文
posted @ 2013-01-08 12:24 Jack Ge 阅读(187) 评论(0) 推荐(0) 编辑
HDU 1418 抱歉
摘要：抱歉http://acm.hdu.edu.cn/showproblem.php?pid=1418Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 2335 Accepted Submission(s): 967 Problem Description非常抱歉，本来兴冲冲地搞一场练习赛，由于我准备不足，出现很多数据的错误，现在这里换一个简单的题目：前几天在网上查找ACM资料的时候，看到一个中学的奥数题目，就是不相交的曲线段分割平面的问题，我已经 阅读全文
posted @ 2013-01-05 14:34 Jack Ge 阅读(450) 评论(0) 推荐(0) 编辑
HDU Leftmost Digit
摘要：Leftmost Digithttp://acm.hdu.edu.cn/game/entry/problem/show.php?chapterid=2&sectionid=1&problemid=11Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1524 Accepted Submission(s): 689Problem DescriptionGiven a positive integer N, you should o 阅读全文
posted @ 2013-01-03 12:26 Jack Ge 阅读(2256) 评论(0) 推荐(0) 编辑
HDU 1286 找新朋友 （欧拉函数）
摘要：找新朋友http://acm.hdu.edu.cn/game/entry/problem/show.php?chapterid=2&sectionid=1&problemid=8Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1560 Accepted Submission(s): 781Problem Description新年快到了，“猪头帮协会”准备搞一个聚会，已经知道现有会员N人，把会员从1到N编号，其中会长的号码是N 阅读全文
posted @ 2013-01-03 12:16 Jack Ge 阅读(1966) 评论(0) 推荐(0) 编辑
HDU Largest prime factor
摘要：Largest prime factorhttp://acm.hdu.edu.cn/game/entry/problem/show.php?chapterid=2&sectionid=1&problemid=5Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2728 Accepted Submission(s): 860Problem DescriptionEverybody knows any number can be c 阅读全文
posted @ 2013-01-03 11:10 Jack Ge 阅读(354) 评论(0) 推荐(0) 编辑
HDU 1717 小数化分数2
摘要：小数化分数2http://acm.hdu.edu.cn/game/entry/problem/show.php?chapterid=2&sectionid=1&problemid=12Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1646 Accepted Submission(s): 613Problem DescriptionRay 在数学课上听老师说，任何小数都能表示成分数的形式，他开始了化了起来，很快他就完成了，但他 阅读全文
posted @ 2013-01-02 22:55 Jack Ge 阅读(512) 评论(0) 推荐(0) 编辑
HDU 相遇周期
摘要：相遇周期http://acm.hdu.edu.cn/game/entry/problem/show.php?chapterid=2&sectionid=1&problemid=3Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1501 Accepted Submission(s): 710Problem Description 2007年3月26日，在中俄两国元首的见证下，中国国家航天局局长孙来燕与俄罗斯联邦航天局局长别尔米诺 阅读全文
posted @ 2013-01-02 17:06 Jack Ge 阅读(1196) 评论(0) 推荐(0) 编辑
HDU 1943 Ball bearings
摘要：Ball bearingshttp://acm.hdu.edu.cn/showproblem.php?pid=1943Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 43 Accepted Submission(s): 22 Problem DescriptionThe Swedish company SKF makes ball bearings. As explained by Britannica Online, a ball bea 阅读全文
posted @ 2012-12-28 20:40 Jack Ge 阅读(210) 评论(0) 推荐(0) 编辑
HDU 2710 Max Factorv (素数模板 & 多种解法)
摘要：Max Factorhttp://acm.hdu.edu.cn/showproblem.php?pid=2710Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2412 Accepted Submission(s): 734 Problem DescriptionTo improve the organization of his farm, Farmer John labels each of his N (1 <= N <= 阅读全文
posted @ 2012-12-28 11:00 Jack Ge 阅读(692) 评论(0) 推荐(0) 编辑
PKU 1006 Biorhythms （中国剩余定理 * *）
摘要：Biorhythmshttp://poj.org/problem?id=1006Time Limit: 1000MSMemory Limit: 10000KTotal Submissions: 97029Accepted: 29832DescriptionSome people believe that there are three cycles in a person's life that start the day he or she is born. These three cycles are the physical, emotional, and intellectua 阅读全文
posted @ 2012-12-26 13:24 Jack Ge 阅读(316) 评论(0) 推荐(0) 编辑
POJ 2002 Squares (二分)
摘要：SquaresTime Limit : 7000/3500ms (Java/Other) Memory Limit : 131072/65536K (Java/Other)Total Submission(s) : 12 Accepted Submission(s) : 11Problem DescriptionA square is a 4-sided polygon whose sides have equal length and adjacent sides form 90-degree angles. It is also a polygon such that rotating a 阅读全文
posted @ 2012-12-24 12:50 Jack Ge 阅读(457) 评论(0) 推荐(0) 编辑
HDU 2824 The Euler function (欧拉函数)
摘要：The Euler functionTime Limit : 2000/1000ms (Java/Other) Memory Limit : 32768/32768K (Java/Other)Total Submission(s) : 26 Accepted Submission(s) : 16Problem DescriptionThe Euler function phi is an important kind of function in number theory, (n) represents the amount of the numbers which are smaller 阅读全文
posted @ 2012-12-18 14:29 Jack Ge 阅读(1799) 评论(0) 推荐(0) 编辑

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