Question Write a function to find the longest common prefix string amongst an array of strings. Solution 第一思路是用Trie,但是对于一道Easy类别的题目,用Trie显然是杀鸡用牛刀. 于是我们可以参考到构造Trie的过程,来找这个最长prefix. 我们先用String array中第一个String初始化Pre,然后遍历剩下的每一个String,找重合的终点,删除不重合的部分. pub…

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…

问题:链接 Write a function to find the longest common prefix string amongst an array of strings. 解答: 注意 当传入參数为空,即vector<string> 大小为0时.应该直接返回一个空字符串"".而不是返回NULL. 这点须要特别注意. 代码: class Solution { public: string longestCommonPrefix(vector<string&…

Write a function to find the longest common prefix string amongst an array of strings. 这道题让我们求一系列字符串的共同前缀,没有什么特别的技巧,无脑查找即可,我们定义两个变量i和j,其中i是遍历搜索字符串中的字符,j是遍历字符串集中的每个字符串.这里将单词上下排好,则相当于一个各行长度有可能不相等的二维数组,我们遍历顺序和一般的横向逐行遍历不同,而是采用纵向逐列遍历,在遍历的过程中,如果某一行没有了,说明其为…

题目简述: Write a function to find the longest common prefix string amongst an array of strings. 解题思路: class Solution: # @return a string def longestCommonPrefix(self, strs): if strs == []: return '' minl = 99999 for i in strs: if len(i) < minl: minl = l…

  public class Solution { /** * @param strs: A list of strings * @return: The longest common prefix */ public String longestCommonPrefix(String[] strs) { // write your code here if(strs.length == 0){ return ""; } String prefix = strs[0]; int i =…

Given k strings, find the longest common prefix (LCP). Have you met this question in a real interview?     Example For strings "ABCD", "ABEF" and "ACEF", the LCP is "A" For strings "ABCDEFG", "ABCEFG&…

题目: Write a function to find the longest common prefix string amongst an array of strings. Subscribe to see which companies asked this question 代码: 上周出差北京一周,都没有做题,这两天继续开始,先从简单的入手. 这个题目一开始以为是找出字符串数组中最长的那个,那不很简单嘛,很快写完了,发现不对. 题目表达不是很清楚,或者是我英语不行,查了下,原来是找…

Write a function to find the longest common prefix string amongst an array of strings. class Solution { public: string longestCommonPrefix(vector<string> &strs) { if(strs.empty()) return ""; ].length(); ; i < strs.size(); ++ i) minL…

Write a function to find the longest common prefix string amongst an array of strings. public class Solution { public String longestCommonPrefix(String[] strs) { if (strs == null || strs.length == 0) { return ""; } else if (strs.length < 2) {…