2020 USACO February Contest -- Final Results
The 2020 USACO February contest featured algorithmic programming problems covering a wide range of techniques and levels of difficulty.
A total of 5799 distinct users logged into the contest during its 4-day span. A total of 4976 participants submitted at least one solution, hailing from 76 different countries:
2739 USA 1244 CHN 197 KOR 109 CAN 72 MYS 52 ROU 36 IRN
31 BLR 28 VNM 28 SGP 26 FRA 25 SAU 25 POL 25 IND
25 GEO 19 GBR 17 CUB 16 RUS 16 MNG 14 KAZ 12 TWN
12 SLV 11 COL 11 BGD 10 MEX 10 LTU 9 DEU 9 ARM
8 GRC 7 ZAF 7 HKG 7 BRA 7 BGR 7 AUS 6 VEN
6 NLD 6 JPN 5 TUR 5 SYR 5 SRB 4 TJK 4 THA
3 NZL 3 ISR 3 IDN 3 HRV 3 FIN 3 CHE 3 AZE
2 WSM 2 TUN 2 TKM 2 SVN 2 PRT 2 PRK 2 PHL
2 NGA 2 LUX 2 JOR 2 ITA 2 EST 2 ESP 2 EGY
2 BEL 1 ZWE 1 UKR 1 MKD 1 MAR 1 LVA 1 KWT
1 IRQ 1 HUN 1 GUM 1 CYP 1 CMR 1 ARG
In total, there were 13498 graded submissions, broken down by language as follows:
4594 C++11
4070 Java
2959 C++
1649 Python 3.4.0
144 Python 2.7.6
81 C
1 Pascal
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 2020 February Contest, Platinum
The platinum division had 523 total participants, of whom 366 were pre-college students. Results for top scorers are here. Congratulations to all of the top participants for their excellent results!
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USACO 2020 February Contest, Gold
The gold division had 723 total participants, of whom 560 were pre-college students. All competitors who scored 800 or higher on this contest are automatically promoted to the platinum division. Detailed results for all those promoted are here.
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USACO 2020 February Contest, Silver
The silver division had 2311 total participants, of whom 1822 were pre-college students. All competitors who scored 700 or higher on this contest are automatically promoted to the gold division. Detailed results for all those promoted are here.
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USACO 2020 February Contest, Bronze
The bronze division had 2992 total participants, of whom 2239 were pre-college students. All competitors who scored 700 or higher on this contest are automatically promoted to the silver division. Detailed results for all those promoted are here.
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Final Remarks
The 2019-2020 season is winding down --- just one more contest to go before we name our next set of finalists. I'm quite happy that this contest ran quite smoothly, particularly since it was the first being run on a new server. Performance as a whole was quite impressive despite challenging problems at all levels of the contest.
I would remind our competitors that creation of duplicate accounts and other forms of abuse of the contest system (which unfortunately seem to be on rise, especially from overseas) are not tolerated and will result in lifetime disqualification from USACO participation (sorting out these issues is perhaps also the primary reason slowing down generation of contest results).
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 large number of people contribute towards the quality and success of USACO contests. Those who helped with this contest include Mark Gordon, Benjamin Qi, Jonathan Paulson, Spencer Compton, Travis Hance, Dhruv Rohatgi, and Nick Wu. Thanks also to our translators and to Clemson CCIT for providing our contest infrastructure. Finally, we are grateful to the USACO sponsors for their generous support: TwoSigma, D.E. Shaw, and Ansatz Trading.
We look forward to seeing everyone again for the US Open contest, our national championship.
Happy coding!
- Brian Dean ([email protected])
Director, USACO