public class Solution {
    public int MinimumArea(int[][] grid)
    {
        var x = grid[0].Length;
        var y = grid.Length;

        int min_x = x;
        int max_x = 0;
        int min_y = y;
        int max_y = 0;

        for (var i = 0; i < x; i++)
        {
            for (var j = 0; j < y; j++)
            {
                if (grid[j][i])
                {
                    min_x = Math.Min(min_x, i);
                    max_x = Math.Max(max_x, i);
                    min_y = Math.Min(min_y, j);
                    max_y = Math.Max(max_y, j);
                }
            }
        }

        return (max_x - min_x + 1) * (max_y - min_y + 1);
    }
}