2024 December Contest -- Final Results
The USACO 2024 December contest featured algorithmic programming problems covering a wide range of techniques and levels of difficulty.
A total of 15564 distinct users logged into the contest during its 4-day span. A total of 12170 participants submitted at least one solution, hailing from 100+ countries. 4940 participants were from the USA, with high levels of participation also from China, Canada, Korea, Romania, Malaysia, and India. In total, there were 32484 graded submissions, broken down by language as follows:
18801 C++17 5079 C++11 4910 Python-3.6.9 3344 Java 230 C 120 Python-2.7.17
Below are the detailed results for each of the platinum, gold, silver, and bronze contests. You will also find solutions and test data for each problem, and by clicking on any problem you can practice re-submitting solutions in "analysis mode". If you are logged in, you will also see your own specific results below alongside the contest(s) you took.
USACO 2024 December Contest, Platinum
The platinum division had 421 total participants, of whom 260 were pre-college students. Results for top certified scorers are here. Congratulations to all of the top participants for their excellent results!
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USACO 2024 December Contest, Gold
The gold division had 1012 total participants, of whom 697 were pre-college students. All competitors with certified scores of 700 or higher on this contest are automatically promoted to the platinum division. This list of USA pre-college students who were promoted can be found here.
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USACO 2024 December Contest, Silver
The silver division had 4656 total participants, of whom 3410 were pre-college students. All competitors who scored 700 or higher on this contest are automatically promoted to the gold division.
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USACO 2024 December Contest, Bronze
The bronze division had 11472 total participants, of whom 8373 were pre-college students. All competitors who scored 700 or higher on this contest are automatically promoted to the silver division.
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Final Remarks
The 2024-25 USACO season is off to an excellent start! Participation numbers for this contest were strong, with many students being promoted (some by multiple divisions). For those not yet promoted, remember that the more practice you get, the better your algorithmic coding skills will become -- please keep at it! USACO contests are designed to challenge even the very best students, and it can take a good deal of hard work to excel at them. To help you fix any bugs in your code, you can now re-submit your solutions and get feedback from the judging server using "analysis mode".
A reminder to all about the importance of academic integrity in our contests --- remember that we have a zero tolerance policy towards cheating. To reduce the incentives for cheating while keeping our contests open to all for practice, we are now only reporting results in the gold division for USA students promoted to platinum (we still verify USACO results for USA and non-USA students to college admissions officers who ask about them, but if a student has been disqualified for cheating, this will be reported as well).
A large number of people contribute towards the quality and success of USACO contests. Those who helped with this contest include Weiming Zhou, Chongtian Ma, Alex Liang, Suhas Nagar, Benjamin Qi, Linda Zhao, Agastya Goel, Gavin Ye, Tina Wang, Jiahe Lu, Nick Wu, Brandon Wang, Andi Qu, Jichao Qian, Daniel Zhang, William Lin, Larry Xing, Michelle Wei, Thomas Liu, Richard Qi, Benjamin Chen, Austin Geng, and Eric Yang. Thanks also to our translators for their help in extending the reach of our contests. Finally, we are exceedingly grateful to the USACO sponsors for their generous support: Citadel, Ansatz, X-Camp, TwoSigma, VPlanet Coding, EasyFunCoding, Orijtech, and Jump Trading.
We look forward to seeing everyone again in 2025 for our January contest.
Happy coding!
-- Brian Dean
Professor and Director, School of Computing, Clemson University
Director, USACO