Joeferyの博客

1982. Electrification PlanTime limit: 0.5 secondMemory limit: 64 MBSome country has n cities. The government has decided to electrify all these cities. At first, power stations in k diff

DescriptionThe “U.S. Robots” HQ has just received a rather alarming anonymous letter. It states that the agent from the competing «Robots Unlimited» has infiltrated into “U.S. Robotics”. «U.S. R

1987. Nested SegmentsTime limit: 1.0 secondMemory limit: 64 MBYou are given n segments on a straight line. For each pair of segments it is known that they either have no common points or

1981. Parallel and PerpendicularTime limit: 0.5 secondMemory limit: 64 MBYou are given a regular n-gon. Your task is to calculate two values: the number of its diagonals that are paralle