USACO 2022 US Open Contest, Gold Problem 2. Pair Programming A program consists of a sequence of instructions, each of which is of one of the following forms: ×d×d, where dd is a digit in the range...
USACO 2022 US Open Contest, Gold Problem 1. Apple Catching It's raining apples! At certain points in time, some number of apples will hit the number line. At certain points in time, some of Farmer ...
Final Results: USACO 2022 US Open Contest, Platinum Key: * = Correct x = Wrong Answer (including possibly empty or missing output file) t = Timeout c = Didn't Compile ! = Run-time error or exceeded...
翰林有方的导师专访系列一直深受大家的喜爱，每一篇都是满满干货，这次我们邀请到了美国TOP3大学的历史系女导师！ 从小萌生的兴趣，使她与历史结下了不解之缘，一直不断地探索亚洲中古史。本科从国内TOP2大学的历...
USACO 2022 US Open Contest, Platinum Problem 3. Up Down Subsequence Farmer John's NN cows (2≤N≤3⋅1052≤N≤3⋅105), conveniently numbered 1…N1…N as usual, have ordered themselves according to a permuta...
USACO 2022 US Open Contest, Platinum Problem 2. Hoof and Brain Given a directed graph with NN vertices and MM edges (2≤N≤1052≤N≤105, 1≤M≤2⋅1051≤M≤2⋅105), Farmer John's cows like to play the followi...
USACO 2022 US Open Contest, Platinum Problem 1. 262144 Revisited Bessie likes downloading games to play on her cell phone, even though she does find the small touch screen rather cumbersome to use ...
USACO 2022 February Contest, Bronze Problem 3. Blocks In an effort to improve her vocabulary, Bessie the cow has obtained a set of four wooden blocks, each one a cube with a letter of the alphabet ...
USACO 2022 February Contest, Bronze Problem 2. Photoshoot 2 In what seems to be a familiar occurrence, Farmer John is lining up his NN cows (1≤N≤1051≤N≤105), conveniently numbered 1…N1…N, for a pho...
