aero1009的博客

Two bored soldiers are playing card war. Their card deck consists of exactly n cards, numbered from 1 to n, all values are different. They divide cards between them in some manner, it's possible that...

Alex is a driver of a shuttle bus whose working duty is to drive around Byteland and let the tourists do sightseeing there. The territory of Byteland is strange which can be represent by an grid wit...