随笔分类 -  动态规划 区间dp

HDU 5900 QSC and Master 区间DP
摘要：QSC and Master Problem Description Every school has some legends, Northeastern University is the same.Enter from the north gate of Northeastern Univer 阅读全文
posted @ 2016-09-18 19:20 meekyan 阅读(843) 评论(0) 推荐(5)
HDU 5115 Dire Wolf 区间DP
摘要：Dire Wolf Problem Description Dire wolves, also known as Dark wolves, are extraordinarily large and powerful wolves. Many, if not all, Dire Wolves app 阅读全文
posted @ 2016-07-08 21:43 meekyan 阅读(183) 评论(0) 推荐(0)
UVA - 10891 Game of Sum 区间DP
摘要：题目连接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=19461 Game of sum Description This is a two player game. Initially there are n intege 阅读全文
posted @ 2016-06-20 16:27 meekyan 阅读(191) 评论(0) 推荐(0)
2016"百度之星" - 初赛（Astar Round2A） 1004 D Game 区间DP
摘要：D Game Problem Description 众所周知，度度熊喜欢的字符只有两个：B 和D。今天，它发明了一个游戏：D游戏。度度熊的英文并不是很高明，所以这里的D，没什么高深的含义，只是代指等差数列[(等差数列百科)](http://baike.baidu.com/view/62268.ht 阅读全文
posted @ 2016-05-22 22:06 meekyan 阅读(692) 评论(2) 推荐(0)
2016"百度之星" - 初赛（Astar Round2A）
摘要：题目链接： http://bestcoder.hdu.edu.cn/contests/contest_show.php?cid=701 1001 ： 矩阵快速幂 #include <iostream> #include <algorithm> #include <cstdio> #include < 阅读全文
posted @ 2016-05-21 17:51 meekyan 阅读(793) 评论(2) 推荐(3)
最长公共子序列 nlogn
摘要：先来个板子 最长公共子序列问题： 给定2个字符串，求其最长公共子串。如abcde和dbada的最长公共字串为bd。 动态规划：dp[i][j]表示A串前i个和B串前j个的最长公共子串的长度。 则 若A[i] == B[j] , dp[i][j] = dp[i-1][j-1] + 1; 否则 dp[i 阅读全文
posted @ 2016-05-01 22:48 meekyan 阅读(984) 评论(0) 推荐(0)
UVA1630 Folding 区间DP
摘要：Folding Description Bill is trying to compactly represent sequences of capital alphabetic characters from `A' to `Z' by folding repeating subsequences 阅读全文
posted @ 2016-04-26 22:07 meekyan 阅读(318) 评论(0) 推荐(0)
BZOJ 1260: [CQOI2007]涂色paint 区间DP
摘要：1260: [CQOI2007]涂色paint Description 假设你有一条长度为5的木版，初始时没有涂过任何颜色。你希望把它的5个单位长度分别涂上红、绿、蓝、绿、红色，用一个长度为5的字符串表示这个目标：RGBGR。 每次你可以把一段连续的木版涂成一个给定的颜色，后涂的颜色覆盖先涂的颜色。 阅读全文
posted @ 2016-03-10 22:34 meekyan 阅读(583) 评论(0) 推荐(0)
UVA 1362 Exploring Pyramids 区间DP
摘要：Archaeologists have discovered a new set of hidden caves in one of the Egyptian pyramids. The decryption of ancient hieroglyphs on the walls nearby sh... 阅读全文
posted @ 2015-12-28 21:46 meekyan 阅读(245) 评论(0) 推荐(0)
HDU 5151 Sit sit sit 区间DP + 排列组合
摘要：Sit sit sit问题描述在一个XX大学中有NN张椅子排成一排，椅子上都没有人，每张椅子都有颜色，分别为蓝色或者红色。 接下来依次来了NN个学生，标号依次为1,2,3,...,N。 对于每个学生，他会找一张还没有人坐的椅子坐下来。但是如果这张椅子满足以下三个条件他就不会去坐。1. 这张椅子左右两... 阅读全文
posted @ 2015-12-25 16:20 meekyan 阅读(179) 评论(0) 推荐(0)
Codeforces Round #336 (Div. 2) D. Zuma 区间dp
摘要：D. ZumaGenos recently installed the game Zuma on his phone. In Zuma there exists a line ofngemstones, thei-th of which has colorci. The goal of the ga... 阅读全文
posted @ 2015-12-24 16:43 meekyan 阅读(308) 评论(0) 推荐(0)
BZOJ 1055 区间DP
摘要：1055: [HAOI2008]玩具取名Time Limit: 10 SecMemory Limit: 162 MBSubmit: 1144Solved: 668[Submit][Status][Discuss]Description某人有一套玩具，并想法给玩具命名。首先他选择WING四个字母中的任... 阅读全文
posted @ 2015-09-10 14:45 meekyan 阅读(270) 评论(0) 推荐(0)