[LeetCode] Score After Flipping Matrix 翻轉數組後的分數

阿新 • • 發佈：2019-04-09

urn his all making inpu hat column lin erp

We have a two dimensional matrix?A?where each value is?0?or?1.

A move consists of choosing any row or column, and toggling each value in that row or column: changing all?0s to?1s, and all?1s to?0s.

After making any number of moves, every row of this matrix is interpreted as a binary number, and the score of the matrix is the sum of these numbers.

Return the highest possible?score.

Example 1:

Input: [[0,0,1,1],[1,0,1,0],[1,1,0,0]]
Output: 39
Explanation: Toggled to [[1,1,1,1],[1,0,0,1],[1,1,1,1]].
0b1111 + 0b1001 + 0b1111 = 15 + 9 + 15 = 39

Note:

1 <= A.length <= 20
1 <= A[0].length <= 20
A[i][j]?is?0?or?1.

參考資料：

https://leetcode.com/problems/score-after-flipping-matrix/

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