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LeetCode 刷题之二:寻找二叉树的最大深度
题目为: 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 leaf node. 阶梯思路:对于这种题目最简单的方法就是递归操作了...
分类:其他好文   时间:2014-12-12 23:40:13    阅读次数:374
Longest Substring Without Repeating Characters -- leetcode
Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. Fo...
分类:其他好文   时间:2014-12-12 11:49:07    阅读次数:132
Leetcode-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 longes...
分类:其他好文   时间:2014-12-12 06:43:52    阅读次数:120
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 for "abcabcbb" is "abc", which the length is 3. Fo...
分类:其他好文   时间:2014-12-11 22:33:05    阅读次数:403
LeetCode 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 longest ...
分类:其他好文   时间:2014-12-10 01:41:06    阅读次数:194
Leetcode: Longest Palindromic Substring
Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest pa...
分类:其他好文   时间:2014-12-09 13:44:16    阅读次数:210
Leetcode: Longest Common Prefix
Write a function to find the longest common prefix string amongst an array of strings.分析:这道题没什么好方法,暴力搜索比较即可,在用C++实现时有一个小trick就是"Ifposis equal to thest...
分类:其他好文   时间:2014-12-09 13:42:01    阅读次数:143
[leetcode]Longest Palindromic Substring
问题描述: 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 longest palindromic substring. 基本思想: 本题的navi...
分类:其他好文   时间:2014-12-08 23:04:00    阅读次数:221
sicily 1259 Sum of Consecutive Primes
此题首先为利用筛选法求得10000以内的素数,然后对于输入的每一个数字,依次以小于它的连续素数相加,相等则种类数加一,返回,换另一个素数开始往后继续相加进行这个过程,最后输出种类数。1259. Sum of Consecutive PrimesConstraintsTime Limit: 1 sec...
分类:其他好文   时间:2014-12-08 21:18:22    阅读次数:228
Leetcode: 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:2014-12-08 21:07:17    阅读次数:128
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