maximal-rectangle

< Previous 　　　　　　　　　　　　　　　　 Next >

85. Maximal Rectangle (Hard)

Given a rows x cols binary matrix filled with 0's and 1's, find the largest rectangle 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: 6
Explanation: The maximal rectangle is shown in the above picture.

Example 2:

Input: matrix = []
Output: 0

Example 3:

Input: matrix = [["0"]]
Output: 0

Example 4:

Input: matrix = [["1"]]
Output: 1

Example 5:

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

 

Constraints:

• rows == matrix.length
• cols == matrix[i].length
• 0 <= row, cols <= 200
• matrix[i][j] is '0' or '1'.

Related Topics

[Stack] [Array] [Hash Table] [Dynamic Programming]

Similar Questions

1. Largest Rectangle in Histogram (Hard)
2. Maximal Square (Medium)