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poj2778DNA Sequence(AC自动机+矩阵乘法)
链接看此题前先看一下matrix67大神写的关于十个矩阵的题目中的一个,如下:经典题目8 给定一个有向图,问从A点恰好走k步(允许重复经过边)到达B点的方案数mod p的值把给定的图转为邻接矩阵,即A(i,j)=1当且仅当存在一条边i->j。令C=A*A,那么C(i,j)=ΣA(i,k)*A(k,j...
分类:其他好文   时间:2014-05-20 02:46:43    阅读次数:249
hust 1377 - Sequence
题目描述Given a number sequence whose length is n, you can delete at most k numbers in the sequence.After that you are asked to answer the maximum length ...
分类:其他好文   时间:2014-05-19 22:21:32    阅读次数:304
时序图(Sequence Diagram)
控制焦点Focus on Control 的取值:Alternative fragment(denoted “alt”) 与 if…then…else对应Option fragment (denoted “opt”) 与 Switch对应Parallel fragment (denoted “par...
分类:其他好文   时间:2014-05-17 22:05:02    阅读次数:298
manufacturer of grinding mill
Topics CoveredIntroduction to AfwilliteProperties of AfwilliteHow to Identify AfwilliteGlobal Iron Ore Mining Process Flow Chart DistributionOccurrenc...
分类:其他好文   时间:2014-05-16 00:36:11    阅读次数:328
HDOJ 1005 Number Sequence
Problem DescriptionA number sequence is defined as follows:f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.Given A, B, and n, you are t...
分类:其他好文   时间:2014-05-16 00:34:50    阅读次数:354
mining crushing equipment
we has introduced advanced technology from home and abroad, and combined specific industrial and mining conditions of related industries in China. Wit...
分类:其他好文   时间:2014-05-15 17:53:13    阅读次数:353
mobile crushing plant
Stone crushing and screening plant emerged at a high speed, especially in the cement plant, gold ore mining, iron ore mining, metallurgy plant, and ot...
分类:其他好文   时间:2014-05-15 17:18:36    阅读次数:368
UVA之1121 - Subsequence
【题目】 A sequence of N positive integers (10 N , each of them less than or equal 10000, and a positive integer S (S < 100 000 000) are given. Write a program to find the minimal length of the subse...
分类:其他好文   时间:2014-05-15 07:58:17    阅读次数:329
Humble Numbers
Humble Numbers 题目描述 A number whose only prime factors are 2,3,5 or 7 is called a humble number. The sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, ... shows the fi...
分类:其他好文   时间:2014-05-15 01:36:22    阅读次数:230
leetcode第一刷_Permutation Sequence
这道题还挺好的,如果你的思路是每次生成一个全排列,然后累计到k次,那么停下来吧,肯定超时了亲。。 微软今年的笔试题里有一道类似的,我之前已经提到过了,是只有0和1的字符串,求第k个排列是什么样子的。这道题比那个要难一些,但是总体的思路是一样的。假设有n个数要组成排列,求第k个排列。像填表一样,从高位往地位,逐个填写。先考虑有n-1个数要组成排列,最多有(n-1)!种情况,当第n个数加入后,第n个...
分类:其他好文   时间:2014-05-13 13:42:02    阅读次数:246
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