Package g0201_0300.s0221_maximal_square

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    221 - Maximal Square\.

    Medium

    Given an m x n binary matrix filled with 0's and 1's, find the largest square containing only 1's 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

    Constraints:

    • m == matrix.length

    • n == matrix[i].length

    • 1 <= m, n <= 300

    • matrix[i][j] is '0' or '1'.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Integer maximalSquare(Array<CharArray> matrix)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait