Score After Flipping Matrix
You are given an m x n binary matrix grid.
A move consists of choosing any row or column and toggling each value in that row or column, changing all 0's to 1's and all 1's to 0's.
Every row of the matrix is interpreted as a binary number, and the score of the matrix is the sum of these numbers.
Return the highest possible score after making any number of moves (including zero moves).
Example 1
0 0 1 1 1 0 1 0 1 1 0 0
Input
grid = [[0,0,1,1],[1,0,1,0],[1,1,0,0]]Output
39After flipping to obtain rows 0b1111, 0b1001, and 0b1111, the score is 15 + 9 + 15 = 39.
Example 2
0
Input
grid = [[0]]Output
1The single cell can be made 1, so the highest score is 1.
Constraints
- m == grid.length
- n == grid[i].length
- 1 <= m, n <= 20
- grid[i][j] is either 0 or 1.