Leetcode Problem 2482. Difference Between Ones and Zeros in Row and Column

2482. Difference Between Ones and Zeros in Row and Column

Leetcode Solutions

Key approach of the solution

  1. Initialize two arrays onesRow and onesCol with zeroes, with sizes equal to the number of rows M and columns N of the input matrix grid, respectively.
  2. Iterate over each cell (i, j) in the matrix grid and increment onesRow[i] and onesCol[j] by grid[i][j].
  3. Initialize an empty matrix diff with the same dimensions as grid.
  4. Iterate over each cell (i, j) in the matrix grid again and calculate diff[i][j] using the formula 2 * onesRow[i] + 2 * onesCol[j] - N - M.
  5. Return the matrix diff.
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Alternative approach using direct computation

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