Chess 2 is the second of the three problems in the 2011 Facebook Hacker Cup elimination round 1B. I completely forgot about round 1A last Saturday and was unable to compete then. In this problem, you find yourself faced with a modified game of chess played on a 16×16 board and that contains some new […]
Double Squares is the 1st (and the easiest) of the 3 problems posted in the qualification round for the Facebook Hacker Cup. It consists of calculating how many combinations of adding two squared (integer) numbers equal a given number.