#221

Maximal Square

specialist · 865 · lc medium +31 · verified · 50% accepted · 10,982 likes · top 38%

Description

In an m x n binary matrix of '0's and '1's, locate the largest all-ones square and return its area.

Example 1:

Input: matrix = [["1","0","1","0","0"],["1","0","1","1","1"],["1","1","1","1","1"],["1","0","0","1","0"]]

Output: 4

Example 2:

Input: matrix = [["0","1"],["1","0"]]

Output: 1

Example 3:

Input: matrix = [["0"]]

Output: 0

Code

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class Solution:
    def maximalSquare(self, matrix: List[List[str]]) -> int:

class Solution:
    def maximalSquare(self, matrix: List[List[str]]) -> int: