USACO March 2014 Contest -- Final Results

The USACO March 2014 contest featured algorithmic programming problems covering a wide range of techniques and levels of difficulty.

Click here to see the contest problems and official solutions, or to practice re-submitting solutions.

A total of 1538 participants submitted at least one solution, hailing from 70 different countries:

  671 USA  140 CHN   68 IRN   44 VNM   42 BLR   34 GEO   31 CAN
   28 TUR   27 IDN   24 MEX   24 DEU   21 KAZ   20 RUS   20 BRA
   19 ROU   19 KOR   18 ARM   17 BGR   16 IND   13 SYR   12 BGD
   11 TKM   10 VEN   10 FRA   10 BEL    9 THA    9 POL    9 MYS
    9 JPN    8 TUN    8 IRL    8 FIN    7 ZAF    7 UKR    7 MNG
    7 LTU    7 CUB    6 GRC    6 GBR    5 SGP    5 ITA    5 HRV
    5 EST    5 EGY    5 DOM    5 AZE    5 AUS    4 SRB    4 MKD
    3 PRT    3 NLD    3 CZE    3 ARG    2 SVN    2 NZL    2 KGZ
    2 BIH    2 AUT    1 TWN    1 TJK    1 SVK    1 PER    1 MNE
    1 MDA    1 LUX    1 HKG    1 ESP    1 DNK    1 CYP    1 BOL

The average participant submitted solutions for 2.1 problems. In total, there were 3278 graded submissions, broken down by language as follows:

 2131 C++           
  855 Java          
  146 Pascal        
   65 C             
   51 Python 2.7.2  
   30 Python 3.2    

Gold Division Results

[Note: the problem 'fcount' has been re-graded after fixing a minor issue with the test data]

Full Gold Results

The Gold division had 350 total participants, of whom 258 were pre-college students.

Top pre-college participants:

Country	Grad	Name	Score
KOR	2015	Seokhwan Choi	1000
VNM	2015	Van Hanh Pham	1000
VNM	2015	Khanh Do Ngoc	1000
USA	2014	Steven Hao	1000
USA	2015	Scott Wu	1000
CHN	2014	Mingda Qiao	1000
USA	2015	Andrew He	1000
USA	2016	Demi Guo	1000
USA	2014	Jerry Ma	1000
USA	2014	Qingqi Zeng	1000
POL	2014	Michał Glapa	1000
KOR	2016	Seunghyun Joe	1000
USA	2014	Joshua Brakensiek	1000
IRN	2015	Keivan Mohtashami	1000

Top observers:

Country	Name	Score
JPN	Uwi Tenpen	1000
ARM	Albert Sahakyan	1000
SGP	Mister Poe	1000
ZAF	Bruce Merry	1000
VNM	Le Minh Hoang Hnue	1000
SVK	Jakub Safin	1000
ARG	Diego Vizia	1000
HRV	Lovro Puzar	1000
RUS	Egor Kulikov	1000
RUS	Gerald Agapov	1000
BIH	Damir Ferizovic	1000
BRA	Bruno Adami	1000
POL	Adam Karczmarz	1000

Silver Division Results

Full Silver Results

The Silver division had 378 total participants, of whom 322 were pre-college students.

Top pre-college participants:

Country	Grad	Name	Score
IDN	2014	Nur Hidayat	1000
IDN	2014	Zamil Majdy	1000
KAZ	2016	Zharaskhan Aman	1000
FIN	2015	Petteri Timonen	1000
IDN	2014	Alfonsus Raditya Arsadjaja	1000
IDN	2014	Nathan James	1000
CHN	2018	Haike Xu	1000
IRN	2015	Shayan Shekarforoush	1000
USA	2016	Suchir Balaji	1000
CHN	2019	XingRui Huang	1000
CHN	2018	Yi Xu	1000
JPN	2014	Shunya Satake	1000
CHN	2015	Zhengrong Lu	1000
CHN	2015	Wing Gu	1000
CHN	2016	Yubai Xie	1000
CHN	2016	Richard Chancy	1000
FIN	2015	Tuukka Korhonen	1000
CHN	2016	Zilun Sun	1000
BGR	2018	Radostin Chonev	1000
IRN	2014	Ehsan Soltan Ahgaei	1000
IDN	2015	Muhammad Ayaz Dzulfikar	1000
IDN	2014	Christian Anthony Setyawan	1000
USA	2017	Ariadne Liu	1000
USA	2016	Sanjeev Murty	1000
TUR	2016	Osman Orhan Uysal	1000
IDN	2014	Evan Limanto	1000
CHN	2017	Yukang Chen	1000
USA	2016	Ajinkya Nene	1000
EGY	2016	Omar Kat	1000
RUS	2014	Gleb Posobin	1000
EST	2016	Andres Unt	1000
CHN	2015	fuqiang Yang	1000
USA	2014	Vickie Wang	1000
ROU	2016	Ionescu Teodor	1000

Top observers:

Country	Name	Score
BRA	LusFernando DorellideAbreu	1000
CHN	Chu Wei	1000
CHN	Runze Wang	1000
BRA	Lucas J. Adami	1000
USA	Brendan Fletcher	1000
AUS	James Payor	1000
VNM	Hai Hoang	1000
CHN	Fan Jianhao	1000
CHN	Mingkai Tang	1000
CHN	Yiming Wu	967
BRA	Jonathan Carvalhosa	967
USA	Joshua Slocum	967
CHN	Double Lee	967
GEO	Guram Khidasheli	967

All participants with scores at least 800 will be automatically promoted to the gold division for future contests.

Bronze Division Results

Full Bronze Results

The Bronze division had 810 total participants, of whom 641 were pre-college students.

Top pre-college participants:

Country	Grad	Name	Score
BLR	2017	Valera Kameko	1000
USA	2015	Jason Schwartz	1000
IRN	2015	Alireza Mahmoudi	1000
ARM	2015	Hakob Tamazyan	1000
BEL	2016	Damien Galant	1000
CHN	2016	Chengzhi Wu	1000
GRC	2016	Rafael Ketsetsidis	1000
IRN	2015	Kimia Hemmati Rad	1000
MEX	2014	Fabian Gomez	1000
IRN	2014	Benyamin Bashari	1000
USA	2016	Hubert Yuan	1000
VEN	2015	Carlos Lopez	1000
BEL	2014	Jorik Jooken	1000
ARM	2014	Edo Minasyan	1000
ROU	2014	Robert Onesim	1000
VNM	2015	Hoàng Đinh	1000
MEX	2014	Jose Eduardo Marcos Dehilario	1000
KAZ	2017	Nurbakhyt Madibekov	1000
USA	2015	Ashwath Thirumalai	1000
USA	2018	Nadia Escandon	1000
USA	2014	Katherine Wu	1000
IRN	2016	Elham S	1000
CHN	2018	Yucheng Dai	1000
USA	2015	Christopher Shao	1000
BLR	2014	Alex Krasnov	1000
USA	2018	Shadaj Laddad	1000
IRL	2014	Conor Griffin	1000
AZE	2016	Elgun Cebrayilov	1000
RUS	2015	Sergey Kiyan	1000
SYR	2016	Joud Zouzou	1000
CHN	2016	Huixing Zhong	1000
CHN	2018	Xinyu Wu	1000
CUB	2015	Daniel Enrique	1000
USA	2014	Michael Zhang	1000
BRA	2018	Denilson Junior	1000
CAN	2015	Nenad Bauk	1000
IRL	2014	Richard Tynan	1000
BLR	2014	Alexey Dovgal	1000

Top observers:

Country	Name	Score
BRA	Ivan Henrique Petrin	1000
IRN	Soroush Vahidi	1000
IRL	Dina Garmash	1000
ARG	Franco Marino	1000
IDN	Dewangga Winardi	1000
DOM	Sebastian Lugo	1000
IND	Kishore Patel	1000
VNM	Âu Hải	1000
VEN	Raffaele Ranaldo	1000
IDN	Samuel Halimanto	1000
BGR	Petar Petrov	1000
DOM	Nelson Taveras	1000
CHN	Linda Smith	1000
HRV	Ivan Budiselic	1000
CHN	Ce Jin	1000
RUS	Ilya Malinovsky	1000
BLR	Vladisav Kiselyov	1000
CHN	Jahoo	1000
CAN	Kunal Khamar	1000

All participants with scores at least 800 will be automatically promoted to the silver division for future contests.

Final Remarks

We had a number of high scores across all three divisions in this contest, with quite a few promotions both from silver to gold and bronze to silver. It is good to see our competitors continuing to move up in the ranks!

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, Nathan Pinsker, Jacob Steinhardt, Richard Peng, Tomek Czajka, Fatih Gelgi, and Bruce Merry. 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: IBM, Usenix, TwoSigma, and Jump Trading.

We look forward to seeing everyone again in April for the US Open, our national championship contest. Be sure to participate if you wish to compete for a spot as a finalist at the USACO summer training camp!

Happy coding!

- Brian Dean ([email protected])
Director, USA Computing Olympiad