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Leetcode25: Longest Common Prefix
Write a function to find the longest common prefix string amongst an array of strings. 求若干字符串的最长公共前缀。 首先若无字符串,返回“”;接下来求得其中最短字符串的长度len,比较公共前缀只需最多比较len次;最后比较所有字符串里每一位上的字符。 class Solution { public: ...
分类:其他好文   时间:2015-05-08 18:12:00    阅读次数:152
Java for LeetCode 032 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:编程语言   时间:2015-05-07 20:11:27    阅读次数:154
OJ练习44——T5 Longest Palindormic Substring
求字符串的最长回文子串。【思路】1.从两边开始向中间发展2.从中间开始向两边发展3.从中间开始的变体,较为复杂,详见http://articles.leetcode.com/2011/11/longest-palindromic-substring-part-ii.html【other code1-...
分类:其他好文   时间:2015-05-07 11:45:27    阅读次数:129
LeetCode Binary Tree Right Side View
Given a binary tree, imagine yourself standing on therightside of it, return the values of the nodes you can see ordered from top to bottom.For exampl...
分类:其他好文   时间:2015-05-07 10:01:09    阅读次数:101
Longest Common Prefix ——解题报告
【题目】     Write a function to find the longest common prefix string amongst an array of strings.     【分析】      公共前缀指的是所有字符串的前缀都相同。显然,这个最长公共前缀的长度不会超过所有字符串中最短的那个。     我们先求得最短串长minLen,然后遍历所有字符串中的前...
分类:其他好文   时间:2015-05-07 08:45:58    阅读次数:104
Longest Substring Without Repeating Characters
public class Solution { public int lengthOfLongestSubstring(String s) { int max = 0; if (s == null || s.length() == 0...
分类:其他好文   时间:2015-05-07 07:36:02    阅读次数:143
HackerRank# The Longest Common Subsequence
原题地址LCD,经典动归,O(n^2)复杂度因为要输出子序列,所以啰嗦一些 1 #include 2 #include 3 #include 4 #include 5 #include 6 #include 7 using namespace std; 8 9 #define MAX_...
分类:其他好文   时间:2015-05-07 00:45:34    阅读次数:107
Maximum Depth of Binary Tree -- leetcode
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. 基本思路: 深度优先遍历。 在leetcode上实行执行时间...
分类:其他好文   时间:2015-05-06 23:08:25    阅读次数:184
KMP算法
对于KMP算法,最重要的是要把握其中的next数组的含义及求法考虑一个模式字符串:b1b2...bn,定义next[s]如下:next[s] is the longest proper prefix of b1b2...bs that is also a suffix of b1b2...bs#in...
分类:编程语言   时间:2015-05-06 21:08:11    阅读次数:143
LeetCode 5 Longest Palindromic Substring(C,C++,Python,Java)
Problem: 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. Soluti...
分类:编程语言   时间:2015-05-06 17:58:34    阅读次数:183
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