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...
在近年的留學申請趨勢中，標化成績所占的比重正在逐漸減弱，課外活動、學術素養等軟實力則越來越受到知名學府招生官們的重視。 作為課外活動的重頭戲之一，科研項目已經成了留學之路上不可或缺的組成部分。參加國...
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...
全美青少年科學與人文大賽 Junior Science and Humanities Symposia (簡稱JSHS) Program 是一項由美國陸軍、海軍和空軍三項贊助的 STEM 學術活動，旨在促進中學生對科學、技術、工程和數學的原創性研究和實驗。每...
