#14

Longest Common Prefix

pupil · 475 · lc easy +27 · verified · 47.2% accepted · 21,133 likes · top 32%

play →

Description

Determine the longest string that is a leading prefix of every string in the input array. Return an empty string "" if no common prefix exists.

Example 1:

Input: strs = ["flower","flow","flight"]
Output: "fl"

Example 2:

Input: strs = ["dog","racecar","car"]
Output: ""
Explanation: There is no common prefix among the input strings.

Code

1
2
3