Add only the positive numbers of x
x = [-2 -1 0 1 2 3]
the positive numbers are: 1 2 3, so their sum is 6
Roll the Dice!
Reverse the elements of an array
What number has this problem?
Maximum value in a matrix
Calculate volume of box
How many complete pizzas (number 2)
Connect 4 (the boardgame)
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