Flip Columns For Maximum Number of Equal Rows
You are given an m x n binary matrix matrix.
You can choose any number of columns in the matrix and flip every cell in that column (i.e., change the value of the cell from 0 to 1 or vice versa).
Return the maximum number of rows that have all values equal after some number of flips.
Example 1
0 1 1 1
Input
matrix = [[0,1],[1,1]]Output
1After flipping no values, 1 row has all values equal.
Example 2
0 1 1 0
Input
matrix = [[0,1],[1,0]]Output
2After flipping values in the first column, both rows have equal values.
Constraints
- m == matrix.length
- n == matrix[i].length
- 1 <= m, n <= 300
- matrix[i][j] is either 0 or 1.