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...
USACO 2021 US Open, Gold Problem 3. Permutation Bessie has NN (3≤N≤403≤N≤40) favorite distinct points on a 2D grid, no three of which are collinear. For each 1≤i≤N1≤i≤N, the ii-th point is denoted ...
USACO 2021 US Open, Gold Problem 2. Portals Bessie is located in a network consisting of NN (2≤N≤1052≤N≤105) vertices labeled 1…N1…N and 2N2N portals labeled 1…2N1…2N. Each portal connects two dist...
USACO 2021 US Open, Gold Problem 1. United Cows of Farmer John The United Cows of Farmer John (UCFJ) are sending a delegation to the International bOvine olympIad (IOI). There are NN cows participa...
