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LightOJ 1085 - All Possible Increasing Subsequences (离散化+树状数组+dp)
1085 - All Possible Increasing SubsequencesPDF (English)StatisticsForumTime Limit:3 second(s)Memory Limit:64 MBAn increasing subsequence from a sequen...
分类:编程语言   时间:2015-04-26 01:19:26    阅读次数:236
[编程之美]资格赛 B Palindrome
既然这个是资格赛,  时间也比较充裕, 我就讲解一下我做题的过程 Time Limit:2000ms Case Time Limit:1000ms Memory Limit:256MB Description Given a string, calculate the number of subsequences that are palindrome. ...
分类:其他好文   时间:2015-04-18 13:10:38    阅读次数:162
[dp] upcpj 2221 Mountain Subsequences
题意: 给长度为N的字符串,只存在小写字母。 问你山形的子序列有多少种,这里是子序列不是子串。 所谓的山形就是严格的递增到递减。 思路: dp[i][j][k]代表前i个字母,前面的字母是j的k状态有多少种。 状态0为什么都没,1为上山,2为下山,3为答案状态。 滚动数组维护就好了。 代码: #include"cstdlib" #include"cstdio" #include"...
分类:其他好文   时间:2015-04-14 09:56:15    阅读次数:114
[LeetCode] Distinct Subsequences
Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from the orig...
分类:其他好文   时间:2015-04-10 15:29:31    阅读次数:161
[ACM] SDUT 2607 Mountain Subsequences
Mountain Subsequences Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 Coco is a beautiful ACMer girl living in a very beautiful mountain. There are many trees and flowers on the ...
分类:其他好文   时间:2015-04-07 21:42:24    阅读次数:141
13年山东省赛 Mountain Subsequences(dp)
转载请注明出处:http://www.cnblogs.com/fraud/ ——by fraudMountain SubsequencesTime Limit:1 SecMemory Limit:128 MBDescriptionCoco is a beautiful ACMer girl livi...
分类:其他好文   时间:2015-04-07 00:37:31    阅读次数:172
uva 10069 Distinct Subsequences (dp + 大数)
uva 10069 Distinct Subsequences题目大意:给出两个字符串A和B,找出A中所有与B相同的子字符串。解题思路:if(A[j?1]==B[i?1])if(A[j - 1]==B[i - 1]) { dp[i][j]=dp[i][j]+dp[i?1][j?1];dp[i][j] = dp[i][j]+dp[i - 1][j - 1];}import java...
分类:其他好文   时间:2015-04-01 22:05:58    阅读次数:146
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 none)...
分类:其他好文   时间:2015-03-31 14:42:13    阅读次数:138
Distinct Subsequences
https://leetcode.com/problems/distinct-subsequences/Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a ...
分类:其他好文   时间:2015-03-29 17:45:56    阅读次数:146
Distinct Subsequences
Distinct Subsequences问题:Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which...
分类:其他好文   时间:2015-03-28 21:45:13    阅读次数:167
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