Leetcode c语言-Longest Common Prefix Title: Write a function to find the longest common prefix string amongst an array of strings. 这道题目不难,唯一要注意的是二重指针的使用,因为给了一个字符串数组,也就是一个二维数组,strs[][],对于第一个字符串,应该是strs[0],对于第一个字符串中的第一个...
Explanation: The longest repeating substring is "aaaa", which occurs twice. Note: The stringSconsists of only lowercase English letters from'a'-'z'. 1 <= S.length <= 1500 题解: Let dp[i][j] denotes S, up to i, and up to j<i, the number of common suffix. When j and i are ...
解决方法:参考:http://leetcode.com/2011/11/longest-palindromic-substring-part-ii.html 1.暴力法(Brute force solution) 共C(N, 2) 个子串。时间复杂度O(N3) 2.后缀树法(Suffix tree solution) 反转S 得到 S' ,例如:S = “caba”, S’ = “abac”. 求最长公共子串。求最大公共子串方法有后缀树...