LeetCode:Longest Common Prefix
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问题描述:
Write a function to find the longest common prefix string amongst an array of strings.
思路:
以第一个模板,按照一位一位去比较即可。
代码:
public class Solution { public String longestCommonPrefix(String[] strs) { if(strs.length == 0) return ""; for(int i = 0;i < strs[0].length();++i){ for(int j = 1;j < strs.length;++j) if(strs[j].length() <= i || strs[j].charAt(i) != strs[0].charAt(i)) return strs[0].substring(0,i); } return strs[0]; }}
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