randomly place battleship ships on a 8 by 8 grid using a list<t>

public void placeShip(int[,] gameboard)
        {
            // Randomly place ships on the gameboard
            Random rnd = new Random();
            int max = 7;
            int min = 0;
            bool placed = false;
            int i = 0;

            while (i < 5)
            {
                int row = rnd.Next(min, max);
                int col = rnd.Next(min, max);
                if (gameboard[row, col] == 0)
                {
                    gameboard[row, col] = 1;
                    i++;
                }
            }
        }