Karel starts at 1,1. There are piles of tennis balls on every column on the rest of the first row. Karel's job is to sort these piles from low to high. Karel should end up back at 1,1 facing EAST. Hint: Some of the other Karel Puzzles might be really helpful for this one.

Wich technology can a website use to allow you to listen to a concert live over the internet?

Me with this program in c++ ! computers represent color by combining sub-colors red, green, and blue (rgb). each sub-color's value can range from 0 to 255. thus (255, 0, 0) is bright red. (130, 0, 130) is a medium purple. (0, 0, 0) is black, (255, 255, 255) is white, and (40, 40, 40) is a dark gray. (130, 50, 130) is a faded purple, due to the (50, 50, 50) gray part. (in other word, equal amounts of red, green, blue yield gray).given values for red, green, and blue, remove the gray part. ex: if the input is 130 50 130, the output is: 80 0 80. thus, find the smallest value, and then subtract it from all three values, thus removing the gray.

Does read theory have answers keys ?