[LeetCode][easy]Longest Commong Prefix

分治法，l, mid, r 分为 (l, mid) 和 (mid+1, r)

class Solution {public String longestCommonPrefix(String[] strs) {String result = "";if (strs == null || strs.length == 0) {return result;}return prefix(strs, 0, strs.length - 1);}private String prefix(String[] strs, int left, int right) {if (strs == null || strs.length == 0) {return "";}if (left == right) {return strs[left];}int mid = left + (right - left) / 2;return commonPrefix(prefix(strs, left, mid), prefix(strs, mid+1, right));}private String commonPrefix(String left, String right) {if (left == null || left.length() == 0 || right == null || right.length() == 0) {return "";}int minLength = left.length() < right.length() ? left.length() : right.length();for (int i=0; i<minLength; i++) {if (left.charAt(i) != right.charAt(i)) {if (i == 0) {return "";}return left.substring(0, i);}}return left.substring(0, minLength);}
}

[LeetCode][easy]Longest Commong Prefix相关推荐

【easy!】LeetCode 14. Longest Common Prefix
LeetCode 14. Longest Common Prefix Solution1: 用的暴力遍历,时间复杂度O(n2)O(n2)O(n^2) class Solution { public:s ...
LeetCode 14. Longest Common Prefix字典树 trie树学习之公共前缀字符串
所有字符串的公共前缀最长字符串特点:(1)公共所有字符串前缀 (好像跟没说一样...) (2)在字典树中特点:任意从根节点触发遇见第一个分支为止的字符集合即为目标串参考问题:https://lee ...
LeetCode之Longest Common Prefix
1.题目 Write a function to find the longest common prefix string amongst an array of strings 2.代码实现 pa ...
LeetCode:14. Longest Common Prefix
两年硕士超快的鸭,又要准备秋招啦!0508第一题~ 题目 Write a function to find the longest common prefix string amongst an ar ...
LeetCode: 14. Longest Common Prefix
Write a function to find the longest common prefix string amongst an array of strings. 大意就是,写一个函数可以找 ...
LeetCode 14. Longest Common Prefix
题意:给出n个字符串,求其公共子串思路:两两求子串,LCP(S1,S2,....) = LCP(S1, LCP(S2,....)) 代码如下: func longestCommonPrefix(s ...
LeetCode - Easy - 14. Longest Common Prefix
Topic String Description https://leetcode.com/problems/longest-common-prefix/ Write a function to fi ...
LeetCode Longest Common Prefix
原题链接在这里:https://leetcode.com/problems/longest-common-prefix/ 题目: Write a function to find the longes ...
LeetCode算法入门- Longest Common Prefix -day13
LeetCode算法入门- Longest Common Prefix -day13 题目描述: Write a function to find the longest common prefix ...
leetcode python3 简单题14. Longest Common Prefix
1.编辑器我使用的是win10+vscode+leetcode+python3 环境配置参见我的博客: 链接 2.第十四题 (1)题目英文: Write a function to find th ...

[LeetCode][easy]Longest Commong Prefix

[LeetCode][easy]Longest Commong Prefix相关推荐

最新文章

热门文章