摘要：
A. Drazil and Datetime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSomeday, Drazil wanted to go on... 阅读全文
摘要：
B. Drazil and His Happy Friendstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputDrazil has many f... 阅读全文
摘要：
B. Tanya and Postcardtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLittle Tanya decided to pre... 阅读全文