超越自我就是成功

Elevator Time Limit: 2 Seconds      Memory Limit: 65536 KB How time flies! The graduation of this year is around the corner. N members of ZJU ACM/ICPC Team decided to hold a party in a restauran

?(>_o)! Time Limit: 2 Seconds      Memory Limit: 65536 KB ?(>_o)! is a pseudo-object-oriented programming language. It implements the following commands: Command Description ? Chec

Ranking System Time Limit: 2 Seconds      Memory Limit: 65536 KB Few weeks ago, a famous software company has upgraded its instant messaging software. A ranking system was released for user grou

Continuous Login Time Limit: 2 Seconds      Memory Limit: 131072 KB      Special Judge Pierre is recently obsessed with an online game. To encourage users to log in, this game will give users a

Point of Intersection Time Limit: 2 Seconds      Memory Limit: 65536 KB Given two circles on the same plane which are centered at (x1,y1) and (x2,y2) ,with radiuses r1 and r2, respectively.We