LeetCode 14 Longest Common Prefix
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14. Longest Common Prefix
My SubmissionsTotal Accepted: 94641 Total Submissions: 338784 Difficulty: Easy
Write a function to find the longest common prefix string amongst an array of strings.
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Discuss
求字符串数组中所有字符串的最长功能前缀
看到了Discuss里这种简单清晰易懂好实现的方法。
使用了jdk的库函数indexOf
public class Solution { public String longestCommonPrefix(String[] strs) { if(strs==null||strs.length==0) return ""; String ret=strs[0]; for(int i=1;i<strs.length;i++){ while(strs[i].indexOf(ret)!=0) ret=ret.substring(0,ret.length()-1); } return ret; }} 0 0
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