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POJ-2533-Longest Ordered Subsequence(DP)
Description A numeric sequence of ai is ordered if a1 < a2 < … < aN. Let the subsequence of the given numeric sequence (a1, a2, …, aN) be any sequence ...
分类:其他好文   时间:2018-12-04 22:37:47    阅读次数:290
LeetCode 376. Wiggle Subsequence
A sequence of numbers is called a wiggle sequence if the differences between successive numbers strictly alternate between positive and negative. The ...
分类:其他好文   时间:2018-12-03 22:57:23    阅读次数:314
LeetCode 392. Is Subsequence
Given a string s and a string t, check if s is subsequence of t. You may assume that there is only lower case English letters in both s and t. t is po ...
分类:其他好文   时间:2018-12-03 22:57:07    阅读次数:222
UVA10405 Longest Common Subsequence【LCS+DP】
Given two sequences of characters, print the length of the longest common subsequence of both sequences.     Sequence 1:  &nb ...
分类:其他好文   时间:2018-12-02 19:20:57    阅读次数:225
AOJ_ALDS1_10_C Longest Common Subsequence【LCS+DP】
Longest Common Subsequence "Aizu ALDS1_10_C" For given two sequences X and Y, a sequence Z is a common subsequence of X and Y if Z is a subsequence of ...
分类:其他好文   时间:2018-12-01 11:12:55    阅读次数:194
1007 Maximum Subsequence Sum
一开始以为用前缀和做,看了下数据10000,果断放弃。 思考了一下,最大和序列的第一个数必为正数(废话),关键是从头开始的子序列和也必为正数。如果加到某个地方和为负数,我还要你前面这些数何用,不如从后面开始重新选。基于上述思路就可以写出代码了。 #include <iostream> #includ ...
分类:其他好文   时间:2018-12-01 00:08:23    阅读次数:115
[leetcode] 300. Longest Increasing Subsequence (Medium)
题意: 求最长增长的子序列的长度。 思路: 利用DP存取以i作为最大点的子序列长度。 Runtime: 20 ms, faster than 35.21% of C++ online submissions for Longest Increasing Subsequence. 解法二: 讨论区里的 ...
分类:其他好文   时间:2018-11-29 15:04:45    阅读次数:159
674. Longest Continuous Increasing Subsequence
1. Question: url : https://leetcode.com/problems/longest-continuous-increasing-subsequence/ 674. Longest Continuous Increasing Subsequence Given an un ...
分类:其他好文   时间:2018-11-19 22:09:44    阅读次数:148
poj1458(裸LCS)
题目链接:http://poj.org/problem?id=1458 Common Subsequence Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 63588 Accepted: 26535 Description A ...
分类:其他好文   时间:2018-11-18 21:04:09    阅读次数:153
CF888E Maximum Subsequence-折半搜索
题意:给一个数列和m,在数列任选若干个数,使得他们的和对m取模后最大。 注意到n<=35,直接枚举状态不行,考虑meeting in the middle。 那么的话我们直接暴力枚举两边的状态就好了,不过我们记录的是取模后的sum。。 现在主要解决合并答案的问题。都是套路是吧。。。 我们容易发现,如 ...
分类:其他好文   时间:2018-11-08 12:14:59    阅读次数:199
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