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...
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...
javaLeetCode.primary; /** * 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 "". * */ public class LongestCommonPrefix_14 { public static...
java: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 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.leng...
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" 1. 2. Example 2:
Java(参考九章算法) classSolution{public StringlongestCommonPrefix(String[]strs){if(strs==null||strs.length==0){return"";}String result=strs[0];for(int i=1;i<strs.length;i++){int j=0;while(j<strs[i].length()&&j<result.length()&&strs[i].charAt(j)==result.charAt(j)){j++...
Java: classSolution{publicStringlongestWord(String[]words){Arrays.sort(words);Stringresult="";Set<String>set=newHashSet<>(words.length);for(Stringword:words){if(word.length()==1||set.contains(word.substring(0,word.length()-1))){result=word.length()>result.length()?word:result;set.add(...
java Write a function to find the longest common prefix string amongst an array of strings. 直接模拟比较即可。 publicclassSolution { //1.Method1,startfromthe first one, compare prefixwithnext string,untilend; //2.Method2,startfromthe firstchar, compare itwithallstring,andthenthe secondchar//...
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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...