NC24866 [USACO 2009 Dec S]Music Notes
题目描述
FJ is going to teach his cows how to play a song. The song consists of N (1 <= N <= 50,000) notes, and ......
NC24017 [USACO 2016 Jan S]Angry Cows
题目描述
Bessie the cow has designed what she thinks will be the next big hit video game: "Angry Cows". The prem ......