题目 Write a function to find the longest common prefix string amongst an array of strings. 分析 该题目是求一个字符串容器中所有字符串的最长公共前缀. AC代码 class Solution { public: string longestCommonPrefix(vector<string>& strs) { if (strs.size() == 0) return ""; e…

Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". Example 1: Input: ["flower","flow","flight"] Output: "fl" Exa…

题目链接:https://leetcode.com/problems/longest-common-prefix/ 题目:Write a function to find the longest common prefix string amongst an array of strings. 解题思路:寻找字符串数组的最长公共前缀,将数组的第一个元素作为默认公共前缀.依次与后面的元素进行比較.取其公共部分,比較结束后.剩下的就是该字符串数组的最长公共前缀.演示样例代码例如以下: public…

Problems:Write a function to find the longest common prefix string amongst an array of strings. 就是返回一个字符串数组的所有的公共前缀.不难.我是已第一个字符串为参考,然后依次遍历其他的字符串,一旦遇到不同的.就break.然后返回第一个字符串的相应子序列. class Solution { public: string longestCommonPrefix(vector<string> &…

公众号:爱写bug Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". 编写一个函数来查找字符串数组中的最长公共前缀. 如果不存在公共前缀,返回空字符串 "". Example 1: Input: ["flower"…

Longest Common Prefix 题目 给予一个列表,元素为字符串,写一个程序找出最长公共前缀 解题思路 先比较两个字符串,如果第一个字符不一样,则返回空值,比较完成后,用这个公共字符串和下一个元素继续比较,以此类推 class Solution: # @param {string[]} strs # @return {string} def longestCommonPrefix(self, strs): if not strs: return '' if len(strs) ==…

Longest Common Prefix Write a function to find the longest common prefix string amongst an array of strings. 求最长公共前缀. 代码例如以下: class Solution { public: string longestCommonPrefix(vector<string>& strs) { int length = strs.size(); if (length <=…

14. Longest Common Prefix Write a function to find the longest common prefix string amongst an array of strings. 注:这题竟然连个示例都没有,说明特殊情况并不多,就是要找出所有字符串的最长公共前缀.他应该不会超过所有字符串中最短的那个,可以试着找出最短长度n,然后每个都读取和比较n个,并根据情况不断减小那个n.\ ) { return ""; } int n{int(strs…

Longest Common Prefix Write a function to find the longest common prefix string amongst an array of strings. 求字符串数组中字符串的最长公共前缀. String Solutions 1 Longest Common Prefix -- 11~13ms 第一个映入大脑的是对每一个字符串,按字符位逐个比较,直到发现不相同的或者是有个字符串已经比较完了时,说明最大公共前缀已经找到.则时间复杂度是…

题目 Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", which has length = 2. Another example i…

题目 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. 分析 求给定字符串的最长回文子串. 这道题有下面三种解决思路: 暴力法,二层遍历,判断[i,j]子串是否回文,且同时记录最长长度: 显然的,暴力…

题目 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 consecutive elements sequence is [1, 2, 3, 4]. Return its length: 4. Your algorithm should ru…

题目: 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. For "bbbbb" the longest s…

Easy! 题目描述: 编写一个函数来查找字符串数组中的最长公共前缀. 如果不存在公共前缀,返回空字符串 "". 示例 1: 输入: ["flower","flow","flight"] 输出: "fl" 示例 2: 输入: ["dog","racecar","car"] 输出: "" 解释: 输入不存在公共前缀. 说明: 所有…

编写一个函数来查找字符串数组中的最长公共前缀. 如果不存在公共前缀,返回空字符串 "". 示例 1: 输入: ["flower","flow","flight"] 输出: "fl" 示例 2: 输入: ["dog","racecar","car"] 输出: "" 解释: 输入不存在公共前缀. string longestComm…

14.Longest Common Prefix Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". Example 1: Input: ["flower","flow","flight"] O…

Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". Example 1:            Input: ["flower","flow","flight"]               …

1. 题目 1.1 英文题目 Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty string "". 1.2 中文题目 编写一个函数来查找字符串数组中的最长公共前缀. 如果不存在公共前缀,返回空字符串 "". 1.3输入输出 输入 输出 strs = […

Write a function to find the longest common prefix string amongst an array of strings. 思路:找最长公共前缀 常规方法 string longestCommonPrefix(vector<string> &strs) { ) return ""; ) ]; string ans; ; ) { ; i < strs.size(); i++) { ].size() <= n…

Write a function to find the longest common prefix string amongst an array of strings. char* longestCommonPrefix(char** strs, int strsSize) { ) return ""; ]; int i, j; int cmpLen; ; i < strsSize; i++){ //traverse strs j = ; cmpLen = (strlen(s…

Write a function to find the longest common prefix string amongst an array of strings. 求很多string的公共前缀,用个两重循环就可以,代码如下: class Solution { public: string longestCommonPrefix(vector<string>& strs) { string prefix; || strs[].size() == ) return "&…

这个也是简单题目.可是关键在于题意的理解. 题目原文就一句话:Write a function to find the longest common prefix string amongst an array of strings. 题意是给一个字符串数组,找出这个字符串数组中全部字符串的最长公共前缀. 注意是限定的前缀.而不是子串. 所以,直接的解法就是以第一个字符串为基准,逐个比較每一个字符.算法复杂度也显然是O(M*N).M是字符串的个数,N是最长前缀的长度. 代码例如以下: class…

问题 该文章的最新版本已迁移至个人博客[比特飞],单击链接 https://www.byteflying.com/archives/3921 访问. 编写一个函数来查找字符串数组中的最长公共前缀. 如果不存在公共前缀,返回空字符串 "". 输入: ["flower","flow","flight"] 输出: "fl" 输入: ["dog","racecar",&quo…

一天一道LeetCode系列 (一)题目: Write a function to find the longest common prefix string amongst an array of strings. (二)题意 求一组字符串中的最长前缀字符串. 举例:字符串组:abc,ab,abdef,abws 最长前缀字符串:ab 我的解法是先求出这组字符串中最短的,然后依次匹配,遇到不同的就退出. class Solution { public: string longestCommonP…

导航页-LeetCode专题-Python实现 相关代码已经上传到github:https://github.com/exploitht/leetcode-python 文中代码为了不动官网提供的初始几行代码内容,有一些不规范的地方,比如函数名大小写问题等等:更合理的代码实现参考我的github repo 1.读题 Write a function to find the longest common prefix string amongst an array of strings. 很简单的…

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://leetcode.com/problems/longest-common-prefix/description/ Write a function to find the longest common prefix string amongst an array of strings. If there…

作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.cn/ 个人公众号:负雪明烛 本文关键词:prefix, 公共前缀,题解,leetcode, 力扣,Python, C++, Java 目录 题目描述 题目大意 解题方法 遍历前缀子串 使用set 遍历最短字符串 排序 日期 题目地址:https://leetcode.com/problems/longest-common-prefix/description/ 题目描述 Write a fun…

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com'https://oj.leetcode.com/problems/longest-common-prefix/14: Longest Common Prefix Write a function to find the longest common prefix string amongst an array of strings.===Comments by Dabay===…

题目:Longest Common Prefix 内容: Write a function to find the longest common prefix string amongst an array of strings. 编写一个函数来查找字符串数组中最长的公共前缀字符串. 理解题目: 如数组 ["a", "b"]   最长的公共前缀字符串是 "": 如数组 ["aa", "aa"]   最长的公…

题目:Write a function to find the longest common prefix string amongst an array of strings. 很简单的一个描述,最长公共前缀,首先想到的是用递归,既然是找公共前缀,那肯定要两个进行比较,所以把第一个和除了第一个之外的字符串数组看作两个进行比较,再对后面的进行递归就好了,上代码. public static String longestCommonPrefix(String[] strs) { if (strs.…