This contest comprises 3 questions, each question may be worth a different number of points, so read them carefully. Some questions may have sub tasks worth partial points. The contest will run for several days. However, you will have only 2 hours to complete the questions starting at any time you like during the contest span. After your 2 hours is up, you will become a spectator. Please do not share the questions once you have read them.

This contest is rated.