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lightoj-1110 - An Easy LCS (LCS+路径记录)
1110 - An Easy LCS PDF (English) Statistics ForumTime Limit: 2 second(s) Memory Limit: 32 MBLCS means 'Longest Common Subsequence' that means two non- ...
分类:其他好文   时间:2016-06-08 01:45:59    阅读次数:335
[LeetCode] Russian Doll Envelopes 俄罗斯娃娃信封
Given an unsorted array of integers, find the length of longest increasing subsequence. For example, Given [10, 9, 2, 5, 3, 7, 101, 18], The longest i ...
分类:其他好文   时间:2016-06-08 01:30:04    阅读次数:237
最长公共子序列(LCS)
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. 最长公共子序列是一个十 ...
分类:其他好文   时间:2016-06-04 22:07:40    阅读次数:201
334. Increasing Triplet Subsequence
Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array. Formally the function should: Return true if ...
分类:其他好文   时间:2016-06-03 14:28:16    阅读次数:237
LeetCode:Increasing Triplet Subsequence
Increasing Triplet Subsequence Total Accepted: 14818 Total Submissions: 43443 Difficulty: Medium Given an unsorted array return whether an increasing subsequence of length 3 ...
分类:其他好文   时间:2016-06-02 13:50:26    阅读次数:148
poj 1458 Common Subsequence(dp)
Common Subsequence Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 46630 Accepted: 19154 Description A subsequence of a given sequence is t ...
分类:其他好文   时间:2016-05-31 12:27:16    阅读次数:117
【Leetcode】Increasing Triplet Subsequence
题目链接:https://leetcode.com/problems/increasing-triplet-subsequence/ 题目: Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array. Formally the fu...
分类:其他好文   时间:2016-05-30 15:33:57    阅读次数:200
单调栈/单调队列/RMQ
在上上周的交友大会中,队长大人提到了st算法,然后仔细的发呆了一个星期,于是就开始做队长的专题了, 6天后的我总算在此专题做题数目和队长一样了。。明早没课,准备通宵把这几天的零散的记忆整理一下。HDU 3530 Subsequence一开始想为何不能m和k一起放到while语句里进行处理 nowmax和nowmin保存了i之前的最大和最小值,假设此时已经出现不满足k和m的序列(A)了(比k大or比...
分类:其他好文   时间:2016-05-30 15:00:55    阅读次数:242
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 t ...
分类:其他好文   时间:2016-05-25 22:00:13    阅读次数:147
POJ 1458 Common Subsequence (DP+LCS,最长公共子序列)
题意:给定两个字符串,让你找出它们之间最长公共子序列(LCS)的长度。 析:很明显是个DP,就是LCS,一点都没变。设两个序列分别为,A1,A2,...和B1,B2..,d(i, j)表示两个字符串LCS长度。 当A[i] = B[j] 时,这个最长度就是上一个长度加1,即:d(i, j) = d( ...
分类:其他好文   时间:2016-05-25 01:50:45    阅读次数:164
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