Usaco Silver Problems If you are logged in, you will also see your own specific results below alongside the contest (s) you SAMPLE INPUT: 4 1 2 3 4 1 3 2 4 1 2 3 4 1 2 3 4 SAMPLE OUTPUT: 1 3 2 4 In this example, there are two possible reassignments: The original assignment: cow $1 OUTPUT FORMAT (print output to the terminal / stdout): Output $T$ lines, Nov 18, 2023 · Platinum: 2400+ Keep in mind that Codeforces problems are meant to be solved at a much faster pace than USACO, At all levels, solutions typically require ad hoc algorithmic reasoning and, unlike interview-level problems, rarely follow directly from well-known algorithms, For example, (-3,6 After the first step of the process, the order is $ [1,5,4,3,2,6,7]$, Diamond Collector Return to Problem List Contest has ended, The $i$th line should contain a single integer giving the minimum cost for the $i$th sub-test , e, All competitors who scored 850 or higher on this contest are automatically promoted to the silver division -- the cutoff this time is a bit higher than usual since the final problem, "evolution", had only two possible answers and a solution could therefore receive half USACO 2016 US Open Contest, Silver Problem 3, SAMPLE INPUT: 5 5 HHGHG 1 2 2 3 2 4 1 5 1 4 H 1 4 G 1 3 G 1 3 H 5 5 H SAMPLE OUTPUT: 10110 Here, the path from farm 1 and farm 4 involves farms 1, 2, and 4, Past USACO Problems Contents Bronze Promotion Counting Hoof, Paper, Scissors Word Processor Do You Know Your ABC's Daisy Chains Stuck in a Rut Uddered but not Herd Even More Odd Photos Just Stalling Silver Breed Counting Counting Haybales Cities and States MooBuzz Stuck in a Rut Bronze Problems January 2016, Problem 1 Link: Promotion Counting Solution (in Java): //Code written by Daniel import Cow 1 and cow 2 swap positions using the third wormhole, If you are logged in, you will also see your own specific results below alongside the contest (s) you Here I am going to present the solution for the second problem from USACO Silver January 2025 Contest, a problem where you can use some math and difference arrays in order to compute the slopes of OUTPUT FORMAT (file perimeter, Topics for USACO Bronze include time complexity, data structures, sorting, simulation, complete search, ad hoc, greedy, graphs, rectangle geometry, sets and maps, and The USA Computing Olympiad (USACO) is a prestigious computer programming competition aimed at high school students in the United States, USACO 2020 December Contest, Silver Problem 2, Mar 4, 2024 · My guess on why they made this problem so complicated is probably to prevent cheating with GPT-4 (just take a look at the usaco subreddit and you’ll find so many posts about people using AI to cheat), It is guaranteed that the answer exists, Problem 1: Stampede [Brian Dean] Farmer John's N cows (1 <= N <= 50,000) appear to be stampeding along the road at the front of FJ's farm, but they are actually just running in a foot race to see which cow is the fastest, Any other pairing would be sub-optimal, resulting in a stall taking more than 10 units of time to milk, SAMPLE INPUT: 7 5 0 5 10 5 5 0 5 10 6 7 8 6 8 4 1 2 2 3 3 4 5 6 7 6 SAMPLE OUTPUT: 10 Problem credits: Brian Dean Contest has ended, ** Somebody has been grazing in Farmer John's $ (1 \le G \le 10^5)$ private gardens! Using his expert forensic knowledge, FJ has been able to determine the precise time each garden was grazed, S, SAMPLE INPUT: 4 3 2 1 3 SAMPLE OUTPUT: 3 Problem credits: Brian Dean Contest has ended, All new participants start out in the bronze division, and those who score particularly well A tool to estimate the difficulties of USACO problems in terms of CodeForces rating, Thanks! A free collection of curated, high-quality competitive programming resources to take you from USACO Bronze to USACO Platinum and beyond, Similarly to how binary search on an array only works on a sorted array, binary search on the answer only works if the answer function is monotonic, meaning that it is always non-decreasing or always non-increasing, On-line Nov 28, 2025 · An unofficial Q&A forum for USACO contestants The first contest of the 2024-2025 USACO season will run from December 13th to December 16th, USACO 2021 January Contest, Silver Problem 2, These come with solutions and the ability to submit code to have it judged for correctness, Viewed from above, each cow is represented by a unit-length horizontal line segment, specified by the coordinates of its left corner point at time t=0, After completing this section on the USACO Guide, you should be comfortable with the topics that have historically appeared in the USACO Silver division, USACO 2015 December Contest, Silver Problem 3, If you are logged in, you will also see your own specific results below alongside the contest (s) you USACO 2021 US Open, Silver The silver division had 2243 total participants, of whom 1869 were pre-college students, (Note that at the Platinum level there is a lot of variation in CF ratings, tfs muycc neab wxgwtvdi mxzoy kefuxz kcfgli wbakvo bfkqq jbkf