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...
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!
classSolution {publicString longestCommonPrefix(String[] strs) {if(strs.length == 0)return"";intminlen =Integer.MAX_VALUE;for(String str : strs) minlen=Math.min(minlen, str.length());intlow = 1;//这里指第一个字符串inthigh =minlen;while(low <=high){intmid = (low+high)/2;if(is...
Longest Common Prefix之Java实现 一、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 “”. Example 1: Input: [“flower”,“flow”,“flight”] Output: “fl” Example 2: Input: [“dog”,“r...
The common prefix is Welcome to Enter the first string: Atlanta Enter the second string: Macon Atlanta and Macon have no common prefix 下面是参考答案代码: import java.util.*; public class LongestCommonPrefixQuestion51 { public static void main(String[] args) { ...
feat: add Longest Common Prefix 9a70c87 jizzel merged commit 5b2dab8 into main Aug 21, 2024 jizzel deleted the day7-java/0 branch August 21, 2024 22:18 Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment Reviewers No reviews Assi...
java: 代码语言:javascript 复制 classSolution{publicStringlongestCommonPrefix(String[]strs){if(strs==null||strs.length==0)return"";String prefix=strs[0];for(int i=1;i<strs.length;i++){while(strs[i].indexOf(prefix)!=0){prefix=prefix.substring(0,prefix.length()-1);if(prefix.isEmpt...
classSolution(object):deflongestCommonPrefix(self,strs):""":type strs:List[str]:rtype:str"""ifnot strs:return""foriinrange(len(strs[0])):forstringinstrs[1:]:# flow,flightifi>=len(string)or string[i]!=strs[0][i]:returnstrs[0][:i]returnstrs[0]...
Runtime:193 ms, faster than50.00%of Java online submissions for Find the Length of the Longest Common Prefix. Memory Usage:55.6 MB, less than50.00%of Java online submissions for Find the Length of the Longest Common Prefix.
前缀树, 参考LeetCode #14 Longest Common Prefix 最长公共前缀, 加上一个记录是否为单词的标志 时间复杂度O(n), 空间复杂度O(n) 先按字典序排序, 遍历取第一个出现的最长单词即可 时间复杂度O(nlgn), 空间复杂度O(n) 代码: C++: class PreTree{public:bool is_word;vector<PreTree*>children;PreTree(...