问题 给出一个未排序的整数数组，找出最长的连续元素序列的长度。 如： 给出 , , , , , ， 最长的连续元素序列是 , , , 。返回它的长度： 。 你的算法必须有O n 的时间复杂度。 初始思路 要找连续的元素，第一反应一般是先把数组排序。但悲剧的是题目中明确要求了O n 的时间复杂度，要做一次排序，是不能达到的。不过我们还是先来看看排序的方案要怎么实现。 简单来说，排序后我们只要遍历数组 ...
2013-05-26 12:14 4 10245 推荐指数：
Given an unsorted array of integers, find the length of the longest consecutive elements sequence. Your algorithm should run in O(n) complexity. ...
Given a binary tree, find the length of the longest consecutive sequence path. The path refers to any sequence of nodes from some starting node ...
Given a binary tree, you need to find the length of Longest Consecutive Path in Binary Tree. Especially, this path can be either increasing ...
题目大意 给定一个整形数组，求出最长的连续序列。例如数组[100,4,200,1,3,2]，最长的连续序列长度为[1,2,3,4]，长度为4。要求时间复杂度为O(n)。 思路 "排序转换成经典的动态规划问题"的话排序至少需要时间复杂度为O(nlog(n))——pass ...
最近经常闲的无聊,于是就做做leetcode的题了,目测好像都不是很难. 不过呢,闲的无聊还是记录下某些做了的题. Given an unsorted array of integers, find the length of the longest consecutive ...
Given a 01 matrix M, find the longest line of consecutive one in the matrix. The line could be horizontal, vertical, diagonal or anti-diagonal. ...
题目： Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example, Given [100, 4, 200 ...
原题地址：https://oj.leetcode.com/problems/longest-consecutive-sequence/ 题意： Given an unsorted array of integers, find ...
