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第三章算法作业(求助攻)
3-1.LIS(longest increas sequence)不多说,题目说了要($ O(n^2) $),我还能说什么呢? 相同题目:HDU 1087 super jumping !jumping!jumping! 而且不卡平方的做法 用dp[i]表示以 i 个数结尾的序列的LIS长度,初始化为 ...
分类:编程语言   时间:2016-04-18 10:12:54    阅读次数:284
Longest Common Subsequence (DP)
Given two strings, find the longest common subsequence (LCS). Your code should return the length of LCS. Example For "ABCD" and "EDCA", the LCS is "A" ...
分类:其他好文   时间:2016-04-18 08:43:52    阅读次数:117
leetcode-Longest Substring Without Repeating Characters
Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb", the answer is "abc", which the leng ...
分类:其他好文   时间:2016-04-17 11:37:10    阅读次数:158
hdu-4991 Ordered Subsequence(dp+树状数组)
题目链接: Ordered Subsequence Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description A numeric sequence of a ...
分类:编程语言   时间:2016-04-17 00:24:19    阅读次数:305
14. Longest Common Prefix
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分类:其他好文   时间:2016-04-16 01:59:14    阅读次数:179
Longest Substring without Repeating Characters
刷leetcode,看到一个算法,给大神跪了。。。。看了半天才明白,下面谈谈理解 这道题最朴素的想法,就是两层遍历: 1、第一层遍历所有字符,表示以每一位置的字符打头的子串; 2、第二层,以某一位置字符开头,向后遍历,可以用map容器插入操作判断是否有重复字符,并计算长度; 3、这样做的话,实际上是 ...
分类:其他好文   时间:2016-04-15 21:54:33    阅读次数:233
Leetcode 199 Binary Tree Right Side View
Given a binary tree, imagine yourself standing on the right side of it, return the values of the nodes you can see ordered from top to bottom. For exa ...
分类:其他好文   时间:2016-04-14 16:03:45    阅读次数:141
14. Longest Common Prefix (截取字符串)
Write a function to find the longest common prefix string amongst an array of strings. ...
分类:其他好文   时间:2016-04-13 20:22:35    阅读次数:229
Longest Palindromic Substring
题目 Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique lon ...
分类:其他好文   时间:2016-04-11 18:11:35    阅读次数:155
LeetCode之14---Longest Common Prefix
题目:   Write a function to find the longest common prefix string amongst an array of strings. 题目大意:     写一个函数,求一个字符串数组中最长的公共前缀子串。 思路:   在做这道题之前先要了解一下什么叫做公共前缀子串。在英语中一个单词可以分为前缀、词根、后缀三部分,所谓前缀就是指在单词的开...
分类:其他好文   时间:2016-04-11 12:32:43    阅读次数:128
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