参考答案Code: 1publicString longestCommonPrefix(String[] strs) {2if(strs ==null|| strs.length == 0)3return"";4String pre = strs[0];5for(inti = 1; i < strs.length; i++)6while(strs[i].indexOf(pre) != 0)7pre = pre.substring(0, pre.length()-1);8returnpre;9} 9行!
Write a function to find the longest common prefix string amongst an array of strings. If there is no common prefix,returnan empty string "". Example1: Input: ["flower","flow","flight"] Output:"fl"Example2: Input: ["dog","racecar","car"] Output:""Explanation: There is no common ...
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的最长公共前缀。 If there is no common prefix, return an empty string "". 如果不存在公共前缀,返回空字符串 ""。 Example 1: Input: strs = ["flower","flow","flight"] O...
Write a function to find the longest common prefix string amongst an array of strings. class Solution { public: string longestCommonPrefix(vector<string> &strs) { //遍历 if(strs.size()==0) return ""; else if(strs.size()==1) return strs[0]; else{ string res=""; int i,k=0;...
class Solution { public String longestCommonPrefix(String[] strs) { //判断边界条件 if(strs==null||strs.length==0)return ""; String res=strs[0];//取第一个 for(int i=1;i<strs.length;i++){ while(strs[i].indexOf(res)!=0){ res=res.substring(0,res.length()-1); } } retu...
Write a function to find the longest common prefix string amongst an array of strings. 写一个函数找到一个String类型的数组中的最长公共前缀。 If there is no common prefix, return an empty string "". 如果没有公共前缀,返回空字符串。 All given inputs are in lowercase letters a-z. ...
string longestCommonPrefix(vector<string> &strs) { string res = ""; if (strs.size() == 0) return res; if (strs.size() == 1) return strs[0]; //把vector中得字符串按长度大小排序 sort(strs.begin(), strs.end(), cmp); ...
[题目地址]https://leetcode.com/problems/longest-common-prefix/ 题目概要: Write a function to find the longest common prefix string amongst an array of strings. 在一个String的列表中找到最长的相同的前缀String. 思路1: 先将String列表进行排序, 然后只需要找出第一个String和最后一个String相同的前缀即...
publicstaticintlongestCommonPrefix(int[]arr1,int[]arr2){Set<String>set=newHashSet<>();for(int i:arr1){String s=String.valueOf(i);for(int j=1;j<s.length();j++){set.add(s.substring(0,j));}}int max=0;for(int i:arr2){String s=String.valueOf(i);for(int j=1;j<=s.lengt...
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" Example 2: Input:["dog","racecar","car"]Output:""Explanation:There is no common ...