Code RoomLongest common prefix
EasyPrep Room Coding #1613

Longest common prefix

CodingAlgorithms & data structuresEntry–Mid~15 min

Given an array of strings, return their longest common prefix, or an empty string if there is none.

Implement
longest_common_prefix(strs: list[str]) → str
Examples
in[["flower","flow","flight"]]out"fl"
What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

0:00 of about 15 min
InputExpectedGot
[["flower","flow","flight"]]"fl"not run yetsample