题解 | #最长公共前缀#
最长公共前缀
https://www.nowcoder.com/practice/28eb3175488f4434a4a6207f6f484f47
import java.util.*;
public class Solution {
/**
* 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
*
*
* @param strs string字符串一维数组
* @return string字符串
*/
public String longestCommonPrefix (String[] strs) {
int n = strs.length;
if (n == 0 || strs ==null) {
return "";
}
String res = strs[0];
for (int i = 1; i < n; i++) {
while (strs[i].indexOf(res) != 0) {
res = res.substring(0, res.length() - 1);
}
}
return res;
}
}