USACO 2020 US Open Contest, Gold Problem 3. Exercise Farmer John has come up with a new morning exercise routine for the cows (again)! As before, Farmer John's NN cows (1≤N≤1041≤N≤104) are standing...
USACO 2020 US Open Contest, Gold Problem 2. Favorite Colors Each of Farmer John's NN cows (1≤N≤2⋅1051≤N≤2⋅105) has a favorite color. The cows are conveniently labeled 1…N1…N (as always), and each c...
USACO 2020 US Open Contest, Gold Problem 1. Haircut Tired of his stubborn cowlick, Farmer John decides to get a haircut. He has NN (1≤N≤1051≤N≤105) strands of hair arranged in a line, and strand ii...
Final Results: USACO 2020 US Open Contest, Platinum Key:* = Correctx = Wrong Answer (including possibly empty or missing output file)t = Timeoutc = Didn't Compile! = Run-time error or exceeded memo...
USACO 2020 US Open Contest, Platinum Problem 3. Circus The NN cows of Farmer John's Circus (1≤N≤1051≤N≤105) are preparing their upcoming acts. The acts all take place on a tree with vertices labele...
USACO 2020 US Open Contest, Platinum Problem 3. Circus The NN cows of Farmer John's Circus (1≤N≤1051≤N≤105) are preparing their upcoming acts. The acts all take place on a tree with vertices labele...
USACO 2020 US Open Contest, Platinum Problem 2. Exercise Farmer John has come up with a new morning exercise routine for the cows (again)! As before, Farmer John's NN cows (1≤N≤75001≤N≤7500) are st...
USACO 2020 US Open Contest, Platinum Problem 1. Sprinklers 2: Return of the Alfalfa Return to Problem List Farmer John has a small field in the shape of an NN by NN grid (1≤N≤20001≤N≤2000) where th...
USACO 2022 US Open Contest, Bronze Problem 3. Alchemy Always keen to learn new hobbies, Bessie the cow is learning how to transform metals. She has aiai (0≤ai≤1040≤ai≤104) units of metal ii for 1≤i...
