My Python solution to the BitTorrent Developer Challenge.
You have 40 bowls, all placed in a line at exact intervals of 1 meter. You also have 9 oranges. You wish to place all the oranges in the bowls, no more than one orange in each bowl, so that there are no three oranges A, B, and C such that the distance between A and B is equal to the distance between B and C. How many ways can you arrange the oranges in the bowls?.