There are several different answers that are possible for the number in each row and column.
Here is a 6 x 6 array where X represents a cup of lemonade:
[tex]\begin {array}{c|c|c|c|c|c}X&X&X&X&X&X\\ X&X&X&X&X&X\\X&X&X&X&X&X\\ X&X&X&X&X&X\\ X&X&X&X&X&X\\ X&X&X&X&X&X\\\end{array}[/tex]