USACO 2021 December Contest, Platinum Problem 1. Tickets Bessie is going on a hiking excursion! The trail that she is currently traversing consists of NN checkpoints labeled 1…N1…N (1≤N≤1051≤N≤105)...
上周马歇尔学会经济论文学术活动终于放题啦！错过了John Locke的同学，这次马歇尔论文学术活动一定要上车！ 马歇尔学会（The Marshall Society）是剑桥大学以马歇尔为名创立的经济学会，成立于1927年。因为是剑桥...
USACO 2021 US Open, Bronze Problem 3. Acowdemia III Bessie is a busy computer science graduate student. However, even graduate students need friends. As a result, Farmer John has opened a pasture w...
USACO 2021 US Open, Bronze Problem 2. Acowdemia II Bessie is applying to computer science graduate school, and has secured an interview at a prestigious computer science lab. However, to avoid offe...
Bessie the cow has enrolled in a computer science PhD program, driven by her love of computer science and also the allure of one day becoming "Dr. Bessie". Having worked for some time on her academ...
USACO 2021 US Open, Silver Problem 3. Acowdemia Bessie the cow has enrolled in a computer science PhD program, driven by her love of computer science and also the allure of one day becoming "Dr. Be...
USACO 2021 US Open, Silver Problem 2. Do You Know Your ABCs? Farmer John's cows have been holding a daily online gathering on the "mooZ" video meeting platform. For fun, they have invented a simple...
USACO 2021 US Open, Silver Problem 1. Maze Tac Toe Bessie the cow enjoys solving mazes. She also enjoys playing tic-tac-toe (or rather, the cow version of tic-tac-toe, described shortly). Farmer Jo...
Final Results: USACO 2021 US Open, Gold Key: * = Correct x = Wrong Answer (including possibly empty or missing output file) t = Timeout c = Didn't Compile ! = Run-time error or exceeded memory limi...
