# 861. Score After Flipping Matrix LeetCode Solution | Easy Approach

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Score After Flipping Matrix You are given an `m x n` binary matrix `grid`.

move consists of choosing any row or column and toggling each value in that row or column (i.e., 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:

```Input: grid = [[0,0,1,1],[1,0,1,0],[1,1,0,0]]
Output: 39
Explanation: 0b1111 + 0b1001 + 0b1111 = 15 + 9 + 15 = 39
```

Example 2:

```Input: grid = [[0]]
Output: 1
```

Constraints:

• `m == grid.length`
• `n == grid[i].length`
• `1 <= m, n <= 20`
• `grid[i][j]` is either `0` or `1`.

Time: O(n)
Space: O(n)

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