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poj1936---subsequence(判断子串)
#include#includeint main(){ char s[100001],t[100001]; char *p1,*p2; while(scanf("%s%s",s,t)!=EOF) { p1=s; p2=t; while...
分类:其他好文   时间:2015-05-25 23:57:27    阅读次数:158
Java for LeetCode 115 Distinct Subsequences【HARD】
Given a string S and a string T, count the number of distinct subsequences of T in S.A subsequence of a string is a new string which is formed from th...
分类:编程语言   时间:2015-05-24 12:51:44    阅读次数:114
poj 2533 Longest Ordered Subsequence(线性dp)
题目链接:http://poj.org/problem?id=2533思路分析:该问题为经典的最长递增子序列问题,使用动态规划就可以解决;1)状态定义:假设序列为A[0, 1, .., n],则定义状态dp[i]为以在所有的递增子序列中以A[i]为递增子序列的最后一个数字的所有递增子序列中的最大长度...
分类:其他好文   时间:2015-05-23 21:13:07    阅读次数:133
poj3017 dp+单调队列
http://poj.org/problem?id=3017 Description Given an integer sequence { an } of length N, you are to cut the sequence into several parts every one of which is a consecutive subsequence of the ori...
分类:其他好文   时间:2015-05-18 16:52:11    阅读次数:130
csu 1553: Good subsequence
1553: Good subsequence Time Limit: 2 Sec  Memory Limit: 256 MB Submit: 549  Solved: 190 [Submit][Status][Web Board] Description Give you a sequence of n numbers, and a number k you should f...
分类:其他好文   时间:2015-05-18 09:05:43    阅读次数:119
Common Subsequence(HDU-1159)
最长公共子序列,其实就是最长上升子序列的变形。  dp[i][j]表示以第一个序列的i位置为结尾和以第二个序列的j位置为结尾的子序列的公共子序列的长度。 显然影响决策的因素就是这两个序列的位置,所以二重循环直接搞就行了,如果这两个位置的字符相同就+1 #include #include #include #include #include using namespace std; char s...
分类:其他好文   时间:2015-05-17 18:46:02    阅读次数:125
题目1042:Coincidence
题目描述:Find a longest common subsequence of two strings.输入:First and second line of each input casecontain two strings of lowercase character a…z. There...
分类:其他好文   时间:2015-05-16 18:13:58    阅读次数:99
hdu3530 Subsequence
Problem Description There is a sequence of integers. Your task is to find the longest subsequence that satisfies the following condition: the difference between the maximum element and the minimum ...
分类:其他好文   时间:2015-05-16 11:57:35    阅读次数:127
动态规划专题小结:最长上升子序列(LIS)问题
(1)问题描述:给定n个整数A1,A2,A3...An。按照从左往右的顺序选择尽可能多的整数,组成一个上升子序列,其中相邻元素不能相等。 (2)解题思路:本题就是经典的最长上升子序列问题(Longest Increasing Subsequence,LIS)。可以通过动态规划解决。定义状态d(i)表示以下标i结尾的LIS的最大长度。那么不难得到如下状态转移方程: d(i)=max{0,d(j)...
分类:其他好文   时间:2015-05-16 09:14:04    阅读次数:100
POJ2533 Longest Ordered Subsequence 【最长递增子序列】
Longest Ordered SubsequenceTime Limit:2000MSMemory Limit:65536KTotal Submissions:32192Accepted:14093DescriptionA numeric sequence ofaiis ordered ifa1i...
分类:其他好文   时间:2015-05-15 10:35:45    阅读次数:128
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