摘要：
Misha and Vanya have played several table tennis sets. Each set consists of several serves, each serve is won by one of the players, he receives one p 阅读全文
摘要：
Description Kostya likes Codeforces contests very much. However, he is very disappointed that his solutions are frequently hacked. That's why he decid 阅读全文
摘要：
Description There are literally dozens of snooker competitions held each year, and team Jinotega tries to attend them all (for some reason they prefer 阅读全文