Code RoomMaximal square
HardPrep Room Coding #1598

Maximal square

CodingAlgorithms & data structuresSenior–Staff~35 min

Given a binary matrix of 0s and 1s, return the area of the largest square containing only 1s.

Implement
maximal_square(matrix: list[list[int]]) → int
Examples
in[[[1,0,1,0,0],[1,0,1,1,1],[1,1,1,1,1],[1,0,0,1,0]]]out4
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
[[[1,0,1,0,0],[1,0,1,1,1],[1,1,1,1,1],[1,0,0,1,0]]]4not run yetsample