JJing-优快云博客

原创 Multiple of 17

题目大意：所给数n，去掉最后一位数a，并减去5*a所得的值是否能被17整除？Description Theorem: If you drop the last digit d of an integer n (n10), subtract 5d from the remaining integer, then the difference is a multiple of 17 if

2012-02-23 18:51:08 639

原创 ZJNU 1614 Three good friends

题目大意：找出使F、Q、J三点连通的最少所需步数。。。DescriptionFF,JJ and QQ are three good friends. But their house are very far away form each others.Their want

2011-08-11 20:11:42 552

原创 ZJNU 1006 骑士游历

Description设有一个n*m的棋盘(2马走的规则为: 1.马走日字 2.马只能向右走即如下图所示: 任务:当N,M 给出之后,同时给出马起始的位置和终点的位置,试找出从起点到终点的所有路径的数目. 例如:(N=10,M=10),(1,5

2011-08-11 17:27:14 869

原创 ZJNU 1743 多少个1

Description一开始有n个0，编号1到n，接下来有m个操作，操作1：输入一个编号i（ 0 < i <= n ）把第i个数变为1，原来为0输出Yes,否则No；操作2：输入一个编号j（ 0 < j <= n ）把第j个数变为0，原来为1输出Yes,否则No；操作

2011-08-11 16:30:51 421

原创 POJ 1731 Orders

题目大意：输入一个字符串，输出按字典序的所有排序。。。 DescriptionThe stores manager has sorted all kinds of goods in an alphabetical order of their labels. All

2011-08-10 11:12:57 567

原创 POJ 3370 Halloween treats

题目大意：输入n，m，以及m个数据，求可被n整除的一个组合。。。由于是任意组合~所以样例不一定是对的~~~ DescriptionEvery year there is the same problem at Halloween: Each neighbour is

2011-08-09 19:21:41 1106

原创 POJ 3132 Sum of Different Primes

题目大意：输入n，k，要求你找出k个和为n的不相同的素数，求可行的方案数。。。 DescriptionA positive integer may be expressed as a sum of different prime numbers (primes),

2011-08-09 14:24:16 1104

原创 POJ 3895 Cycles of Lanes

题目大意：找出定点最多的环，输出定点数~DescriptionEach of the M lanes of the Park of Polytechnic University of Bucharest connects two of the N crossroads o

2011-08-07 17:26:59 1011

原创 POJ 1101 Sticks

题目大意：输入N个数，表示以将若干个长度为L的木棒分为N个长度如下的小段，求最小的L。。。DescriptionGeorge took sticks of the same length and cut them randomly until all parts beca

2011-08-07 14:02:29 2872

原创 POJ 1942 Paths on a Grid

本来以为是一套高中的数学题，以为找出公式就ok了，结果。。排列还超时。。。另外。。。就是排列要用到double。。。。DescriptionImagine you are attending your math lesson at school. Once again, yo

2011-08-06 15:45:07 475

原创 POJ 3175 Finding Bovine Roots

题目大意：输入一个L,接下来是一个L位的整数，代表一个数N的前L位小数，当然，排除完全平方数，求N。。。之前用int取整数部分居然超时了。。。。。改用floor——16MS 过了。。。差距真大。。。 DescriptionThe cows are trying

2011-08-06 15:29:35 836