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LIS && LCS && LCIS模板
1. LISO (n^2):/* LIS(Longest Increasing Subsequence) 最长上升子序列 O (n ^ 2) 状态转移方程:dp[i] = max (dp[j]) + 1 (a[j] res; int i; for (i=pos[len]; ~fa[i]; i=fa....
分类:其他好文   时间:2015-09-02 13:43:44    阅读次数:157
动态规划5-最长单增子序列
(LIS Longest Increasing Subsequence)给定一个数列,从中删掉任意若干项剩余的序列叫做它的一个子序列,求它的最长的子序列,满足子序列中的元素是单调递增的。例如给定序列{1,6,3,5,4},答案是3,因为{1,3,4}和{1,5,4}就是长度最长的两个单增子序列。处看...
分类:其他好文   时间:2015-08-31 17:09:00    阅读次数:254
LeetCode-Distinct Subsequences
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 the original string by deleting some (can be non...
分类:其他好文   时间:2015-08-28 17:52:45    阅读次数:187
poj 2533 最长上升子序列
Longest Ordered Subsequence Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 39374   Accepted: 17315 Description A numeric sequence of ai is ordered if a1 a2 a...
分类:其他好文   时间:2015-08-27 16:42:39    阅读次数:114
HDU1159-Common Subsequence
描述: A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = another sequence Z = ...
分类:其他好文   时间:2015-08-21 23:08:07    阅读次数:160
Longest Increasing Common Subsequence (LICS)
最长上升公共子序列(Longest Increasing Common Subsequence,LICS)也是经典DP问题,是LCS与LIS的混合。Problem求数列 a[1..n], b[1..m]的LICS的长度, a[], b[]数组的元素均为正整数。Solution考虑如何定义DP状态,定...
分类:其他好文   时间:2015-08-20 01:04:36    阅读次数:159
poj_1458 LCS problem F.最长上升公共子序列
DescriptionA subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = another sequence....
分类:其他好文   时间:2015-08-18 11:31:13    阅读次数:119
求最长公共子序列
最长公共子序列,英文缩写为LCS(Longest Common Subsequence)。其定义是,一个序列 S ,如果分别是两个或多个已知序列的子序列,且是所有符合此条件序列中最长的,则 S 称为已知序列的最长公共子序列。而最长公共子串(要求连续)和最长公共子序列是不同的。 #include "stdafx.h" #include #include using names...
分类:其他好文   时间:2015-08-17 19:34:36    阅读次数:116
Longest Common Subsequence (LCS)
最长公共子序列(LCS)是经典的DP问题,求序列a[1...n], b[1..m]的LCS。状态是DP[i][j],表示a[1..i],b[1..j]的LCS。DP转移方程是DP[i][j]= DP[i-1][j-1]+1, a[i] == b[j] max{ DP[i][j-1], DP[i...
分类:其他好文   时间:2015-08-17 00:39:46    阅读次数:159
[线段树]hdu5316
题意: 给出两种操作,一种是求区间漂亮子序列的和的最大值,另一个就是给指定的点改变值。 题目中最重要的一句话:A beautiful subsequence is a subsequence that all the adjacent pairs of elves in the sequence have a different parity of position....
分类:其他好文   时间:2015-08-16 23:05:59    阅读次数:142
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