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LeetCode "Longest Consecutive Sequence"
Comparison-based sorting takes O(nlgn), so hashset is a good idea. After keeping records of all numbers in the hashset, you start checking each number...
分类:其他好文   时间:2014-07-25 03:40:54    阅读次数:305
[leetcode笔记] Longest Consecutive Sequence
随机挑选一题试试手气。 问题描述: Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example, Given [100, 4, 200, ...
分类:其他好文   时间:2014-07-24 21:55:32    阅读次数:232
UVa10000_Longest Paths(最短路SPFA)
解题报告 求最长路。 用SPFA求最长路,初始化图为零,dis数组也为零 #include #include #include #include #include #define inf 99999999 #define N 110 using namespace std; int mmap[N][N],dis[N],vis[N],n; void spfa(int s) { ...
分类:其他好文   时间:2014-07-24 17:43:16    阅读次数:280
【leetcode刷题笔记】Longest Valid Parentheses
Given a string containing just the characters'('and')', find the length of the longest valid (well-formed) parentheses substring.For"(()", the longest...
分类:其他好文   时间:2014-07-24 12:11:55    阅读次数:253
Longest Consecutive Sequence
Given an unsorted array of integers, find the length of the longest consecutive elements sequence.For example, Given [100, 4, 200, 1, 3, 2], The lo...
分类:其他好文   时间:2014-07-24 00:49:07    阅读次数:200
【leetcode刷题笔记】Longest Substring Without Repeating Characters
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo...
分类:其他好文   时间:2014-07-23 16:19:41    阅读次数:234
leetCode解题报告5道题(六)
题目一:Longest Substring Without Repeating CharactersGiven a string, find the length of the longest substring without repeating characters. For example, ...
分类:其他好文   时间:2014-07-22 23:04:12    阅读次数:246
【leetcode刷题笔记】Longest Common Prefix
Write a function to find the longest common prefix string amongst an array of strings.题解:以strs[0]为模板,每次挨个查看是否所有的串里面是否第i位上都和strs[0]一样,如果都一样,把i位置上的字符放到a...
分类:其他好文   时间:2014-07-21 23:31:00    阅读次数:267
LeetCode:Maximum Depth of Binary Tree
Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest le...
分类:其他好文   时间:2014-07-21 09:07:24    阅读次数:207
编程算法 - 最长上升子序列问题 代码(C)
最长上升子序列问题 代码(C)本文地址: http://blog.csdn.net/caroline_wendy题目: 有一个长为n的数列a. 请求出这个序列中最长上升子序列的长度. 最长上升子序列的数字之间可以有间隔.即最长上升子序列(LIS, Longest Increasing Subsequence), 例如: n=5, a={4,2,3,1,5}, result=3(2,3,5).使用动...
分类:其他好文   时间:2014-07-20 22:34:43    阅读次数:297
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