Longest Common Prefix
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:
Example 2:
Note
利用index of判断是不是含有这个前缀,不包含时一直从后往前减小长度
遍历,维护一个最大的res即为答案,其会是所有的公共前缀
Code
Last updated