Code RoomLevenshtein distance
HardPrep Room Coding #1577

Levenshtein distance

CodingAlgorithms & data structuresSenior–Staff~35 min

Given two strings, return the minimum number of single-character insertions, deletions, or substitutions to turn the first into the second.

Implement
min_distance(word1: str, word2: str) → int
Examples
in["horse","ros"]out3
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 35 min
InputExpectedGot
["horse","ros"]3not run yetsample