摘要：
C. Sorting Railway Carstime limit per test：2 secondsmemory limit per test:256 megabytesinput:standard inputoutput:stand... 阅读全文
摘要：
A. Magic Spherestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputCarl is a beginner magician. He ... 阅读全文