摘要：
传送门题面：C. Rectanglestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given nn ... 阅读全文
摘要：
传送门题面：Biologists finally invent techniques of repairing DNA that contains segments causing kinds of inherited diseases. For the sake of si... 阅读全文