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LeetCode:Longest Valid Parentheses
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring.For "(()", the lon ...
分类:其他好文   时间:2019-04-05 20:07:23    阅读次数:186
leetcode 3. Longest Substring Without Repeating Characters [java]
```java public int lengthOfLongestSubstring(String s) { int i = 0, j = 0, max = 0; Set set = new HashSet(); while(j ...
分类:编程语言   时间:2019-04-05 14:03:33    阅读次数:134
POJ-2533.Longest Ordered Subsequence (LIS模版题)
本题大意:和LIS一样 本题思路:用dp[ i ]保存前 i 个数中的最长递增序列的长度,则可以得出状态转移方程dp[ i ] = max(dp[ j ] + 1)(j < i) 参考代码: 1 #include <iostream> 2 #include <cstring> 3 #include ...
分类:其他好文   时间:2019-04-03 14:06:06    阅读次数:152
LeetCode 521 Longest Uncommon Subsequence I 解题报告
题目要求 Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings. The longest uncommon subsequence is ...
分类:其他好文   时间:2019-04-01 11:50:44    阅读次数:137
14. Longest Common Prefix
description: Write a function to find the longest common prefix string amongst an array of strings. 找到几个字符串的最大前缀,英语不好是硬伤gg prefix string 前缀!!!!! If th ...
分类:其他好文   时间:2019-03-30 10:19:50    阅读次数:152
70. Climbing Stairs
网址:https://leetcode.com/problems/length-of-longest-fibonacci-subsequence/ 其实就是斐波那契数列,没什么好说的。 注意使用3个变量,而不是数组,可以节约空间。 ...
分类:其他好文   时间:2019-03-28 00:32:21    阅读次数:163
【LeetCode每天一题】Longest Substring Without Repeating Characters(最长无重复的字串)
Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer ...
分类:其他好文   时间:2019-03-27 12:29:56    阅读次数:157
873. Length of Longest Fibonacci Subsequence
A sequence X_1, X_2, ..., X_n is fibonacci-like if: n >= 3 X_i + X_{i+1} = X_{i+2} for all i + 2 <= n Given a strictly increasing array A of positive ...
分类:其他好文   时间:2019-03-23 12:58:30    阅读次数:118
Leetcode_Easy_14
编写一个函数来查找字符串数组中的最长公共前缀。 如果不存在公共前缀,返回空字符串 ""。 知识点1: 方法:String.indexOf(String) while (strs[i]. indexOf(prefix) != 0) {...} 这个循环用来比较两个字符串,直到找到完全相同的前缀(因为p ...
分类:其他好文   时间:2019-03-20 15:48:31    阅读次数:188
543. Diameter of Binary Tree(两节点的最长路径)
Given a binary tree, you need to compute the length of the diameter of the tree. The diameter of a binary tree is the length of the longest path betwe ...
分类:其他好文   时间:2019-03-20 11:44:09    阅读次数:150
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