摘要： Reduced ID NumbersTime Limit: 2000MSMemory Limit: 65536KTotal Submissions: 7494Accepted: 3029DescriptionT. Chur teaches various groups of students at university U. Every U-student has a unique Student Identification Number (SIN). A SIN s is an integer in the range 0 ≤ s ≤ MaxSIN with MaxSIN = 106-1. 阅读全文

摘要： http://acmoj.shu.edu.cn/openjudge/viewproblem?coll_id=1&prob_id=241Franklin's TroubleDescriptionProfessor Franklin is consulting for an oil company, which is planning a large pipeline running east to west through an oil field of M wells. From each well, a sub-pipeline is to be connected dire 阅读全文