Topcoder Open

Last updated

Topcoder Open (TCO)
2023 topcoder open logo.svg
2023 Topcoder Open logo
FrequencyAnnually
CountryUnited States
Years active2001–2023
InauguratedNovember 2–3, 2001
Most recentNovember 17–19, 2022
ActivityCompetitive programming, data science, design, software development
Organized by Topcoder
Website tco23.topcoder.com

Topcoder Open (TCO) was an annual design, software development, data science and competitive programming championship organized by Topcoder, and hosted in different venues around US. [1] [2] [3] In the first two years, 2001 and 2002, the tournament was titled TopCoder Invitational.

Contents

In addition to the main championship, from 2001 to 2007 Topcoder was organizing an annual TopCoder Collegiate Challenge tournament, for college students only. [4] [5] Also from 2007 to 2010 TopCoder High School competition was held.

From 2015, Topcoder Regional events were held through the year in different countries. [6]

In 2020–2023 in-person Topcoder Open finals were cancelled, and replaced by virtual events due to the impact of COVID-19 pandemic, and subsequent economic slowdown. The 2023 Topcoder Open was the final edition of the contest. [7]

Competition tracks

Competition tracks included in Topcoder Open tournament changed through its history. Many of them resemble the types of challenges offered to Topcoder Community through the year, but there is no 1:1 match. Here is the alphabetical list of all competition tracks ever present at TCO:

Algorithm Competition (SRM)

Timeline:2001 – 2022

Champions: Flag of Belarus.svg Gennady Korotkevich tourist (2022, 2021, 2020, 2019, 2014); Flag of Russia.svg Petr Mitrichev Petr (2018, 2015, 2013, 2006); Flag of the People's Republic of China.svg Yuhao Du xudyh (2017); Flag of Japan.svg Makoto Soejima rng_58 (2016, 2011, 2010); Flag of Russia.svg Egor Kulikov Egor (2012); Flag of the People's Republic of China.svg Bin Jin crazyb0y (2009); Flag of Poland.svg Tomasz Czajka  [ pl ]tomek (2008, 2004, 2003); Flag of the Netherlands.svg Jan Kuipers Jan_Kuipers (2007); Flag of Poland.svg Eryk Kopczyński  [ pl ]Eryx (2005); Flag of Australia (converted).svg John Dethridge John Dethridge (2002); Flag of the United States.svg jonmac (2001).

Details:

The only track that was present at all main TCOs events, and at most of the other Topcoder events. Follows the format of regular 1.5 hours Single Round Matches: [8]

First to Finish (F2F)

Timeline:2009 – 2014, 2016 – 2022

Champions: Flag of Turkey.svg Fatih Tas neonray (2022); Flag of Greece.svg Thomas Kranitsas thomaskranitsas (2021); Flag of Brazil.svg Victor Roberto Gomes da Cunha cunhavictor (2020); Flag of Nepal.svg Dilip Kumar Thapa veshu (2019); Flag of Russia.svg Dmitry Kondakov kondakovdmitry (2018); Flag of Nigeria.svg Akinwale Ariwodola akinwale (2017, 2014); Flag of the People's Republic of China.svg vvvpig (2016); Flag of India.svg Pratap Koritala supercharger (2013); Flag of the People's Republic of China.svg Lan Luo hohosky (2012); Flag of the People's Republic of China.svg Yang Li Yeung (2011); Flag of Ukraine.svg Margaryta Skrypachova Margarita (2010); Flag of the People's Republic of China.svg Ninghai Huang PE (2009).

Details:

Officially called as Mod Dash from 2009 to 2013, and First2Finish afterwards. Competitors are provided with set of small programming tasks (like bug fixes / enhancements in an existing codebase), and they get scores based on who correctly resolves each task first. The exact rules for on-site competition may vary from year to year.

Information Architecture

Timeline:2015 only.

Champions: Flag of Spain.svg Silvana Vacchina f0rc0d3r (2015).

Details:

Provided with client requirements for a software product, competitors are asked to create a wireframe mockup of the future app / website.

Marathon Match (MM)

Timeline:2007 – 2022

Champions: Flag of Poland.svg Przemysław Dębiak  [ pl ]Psyho (2022, 2017, 2016, 2014, 2013, 2011, 2008); Flag of Romania.svg Catalin-Stefan Tiseanu CatalinT (2021); Flag of Japan.svg Hironao Tsutsumida iehn (2020); Flag of Belarus.svg Gennady Korotkevich tourist (2019, 2018); Flag of the People's Republic of China.svg Tiancheng Lou ACRush (2015); Flag of South Korea.svg Won-Seok Yoo ainu7 (2012); Flag of Japan.svg Yoichi Iwata wata (2010); Flag of Russia.svg Andrey Lopatin KOTEHOK (2009); Flag of Poland.svg Mateusz Zotkiewicz Mojito1 (2007).

Details:

Officially called as just Marathon from 2007 to nowadays. Follows the format of regular MM competitions (a 1–2 weeks long online, and 1 day long during on-site competitions). Competitors are provided with the same algorithmic / data science problem, which is judged objectively with a live leaderboard, visible to everybody. Everybody can submit multiple times with no penalties, with the goal to come up with a code that scores the maximal possible amount of scores on that problem. During the competition the leaderboard is generated based on submissions testing against a limit number of test cases, and after the contest the final results are determined in a testing against a larger test dataset.

Quality Assurance Competition (QA)

Timeline: 2019 – 2022

Champions: Flag of Sri Lanka.svg Nuwan Gunarathne codejam (2022, 2021, 2020); Flag of Latvia.svg Vladimir Timofejev v.t. (2019)

Details:

The QA competition includes: structured and unstructured testing, structured test case writing, and automated testing.

Software Design

Timeline:2004–2014

Champions: Flag of the People's Republic of China.svg Meng Wang albertwang (2014, 2013); Flag of Canada (Pantone).svg Michael Paweska argolite (2012, 2010); Flag of the People's Republic of China.svg WuJian Ye BLE (2011); Flag of Ukraine.svg Olexiy Sadovnikov saarixx (2009); Flag of the United States.svg Tim Roberts Pops (2008, 2006); Flag of the United States.svg Sergey Kalinchenko kyky (2007); Flag of Russia.svg Nikolay Archak nicka81 (2005); Flag of Romania.svg Adrian Carcu adic (2004).

Details:

Officially called as Component Design from 2004 to 2009, and just Design from 2010 to 2014. Competitors were asked to take client requirements for a software component / product as input, and produce development documentation / technical specifications. Solutions were evaluated by a panel of judges according to objective scorecards.

Software Development

Timeline:2004 – 2022

Champions: Flag of the People's Republic of China.svg xxcxy (2022); Flag of the People's Republic of China.svg Jiang Liwu jiangliwu (2021, 2019); Flag of Spain.svg Dr. Sergey Pogodin birdofpreyru (2020, 2017); Flag of Vietnam.svg Ngoc Pham ngoctay (2018); Flag of Poland.svg Łukasz Sentkiewicz Sky_ (2016, 2015, 2014); Flag of the People's Republic of China.svg Zhijie Liu morehappiness (2013); Flag of the People's Republic of China.svg Yang Li Yeung (2012, 2010); Flag of the Philippines.svg Franklin Guevarra j3_guile (2011); Flag of the People's Republic of China.svg GuanZhuo Jin Standlove (2009 – Architecture, 2004); Flag of Argentina.svg Pablo Wolfus pulky (2009 – Assembly); Flag of the People's Republic of China.svg Yanbo Wu assistant (2009 – Component Development); Flag of Canada (Pantone).svg Piotr Paweska AleaActaEst (2009 – Specification); Flag of Brazil.svg Romano Silva romanoTC (2008); Flag of the People's Republic of China.svg Feng He hefeng (2007); Flag of Indonesia.svg Sindunata Sudarmagi sindu (2006); Flag of the People's Republic of China.svg Qi Liu visualage (2005).

Details:

Officially called as Component Development from 2004 to 2009, and just as Development from 2010 to nowadays. The actual rules differ from year to year, but, typically, competitors are presented with technical specifications for development of a software component / application / tool, or with a more open, hackathon-style requirements, which they must implement in the best possible way in 4 hours. Submitted solutions are evaluated by a panel of judges according to objective scorecards.

UI Design

Timeline:2007 – 2022

Champions: Flag of Thailand.svg Teeraporn Sriponpak iamtong (2022, 2021, 2020, 2018,2012); Flag of India.svg L. O. I. (2019); Flag of Indonesia.svg Panji Kharisma kharm (2017); Flag of Indonesia.svg Junius Albertho abedavera (2016, 2015, 2013, 2011); Flag of Indonesia.svg Faridah Amalia Mandaga fairy_ley (2014); Flag of Indonesia.svg Tri Joko Rubiyanto djackmania (2010); Flag of Australia (converted).svg Dale Napier djnapier (2009); Flag of the Philippines.svg Nino Rey Ronda oninkxronda (2008); Flag of the People's Republic of China.svg Yiming Liao yiming (2007).

Details:

The event was officially called Studio from 2007 to 2014, and UI Design from 2015 onwards. Competitors, provided with client requirements, are asked to create the best UI (visual) design for an software product.

UI Prototype

Timeline:2015–2018

Champions: Flag of Sri Lanka.svg Mouly Gunarathne moulyg (2018,2017, 2016); Flag of Sri Lanka.svg Dileepa Balasuriya dileepa (2015).

Details:

Competitors are provided with design specifications for a website / web-application, and they should create a working prototype of the frontend within a ~4 hours timeframe. The resulting submissions are judged against objective scorecards.

List of Topcoder Open events

These are the main Topcoder Open events, where champions are determined.

The list of Topcoder Open events, and their winners [9]
DateEventVenueCompetition Tracks, [note 1] and Their Champions [note 2]
Nov 15–18, 2022TCO22 (online) [10] OnlineDev ( Flag of the People's Republic of China.svg xxcxy), Dg ( Flag of Thailand.svg Teeraporn Sriponpak iamtong), F2F ( Flag of Turkey.svg Fatih Tas neonray), MM ( Flag of Poland.svg Przemysław Dębiak  [ pl ]Psyho), QA ( Flag of Sri Lanka.svg Nuwan Gunarathne codejam), SRM ( Flag of Belarus.svg Gennady Korotkevich tourist)
Nov 13–20, 2021TCO21 (online) [11] OnlineDev ( Flag of the People's Republic of China.svg Jiang Liwu jiangliwu), Dg ( Flag of Thailand.svg Teeraporn Sriponpak iamtong), F2F ( Flag of Greece.svg Thomas Kranitsas thomaskranitsas), MM ( Flag of Romania.svg Catalin-Stefan Tiseanu CatalinT), QA ( Flag of Sri Lanka.svg Nuwan Gunarathne codejam), SRM ( Flag of Belarus.svg Gennady Korotkevich tourist)
Nov 13–22, 2020TCO20 [12] (online [note 3] )Online, at hopin.to platform.Dev ( Flag of Spain.svg Sergey Pogodin birdofpreyru), Dg ( Flag of Thailand.svg Teeraporn Sriponpak iamtong), F2F ( Flag of Brazil.svg Victor Roberto Gomes da Cunha cunhavictor), MM ( Flag of Japan.svg Hironao Tsutsumida iehn), QA ( Flag of Sri Lanka.svg Nuwan Gunarathne codejam), SRM ( Flag of Belarus.svg Gennady Korotkevich tourist)
Nov 13–16, 2019TCO19 [13] (Houston, TX, USA)InterContinental Houston – Medical CenterDev ( Flag of the People's Republic of China.svg Jiang Liwu jiangliwu), Dg ( Flag of India.svg L. O. I.), F2F ( Flag of Nepal.svg Dilip Kumar Thapa veshu), MM ( Flag of Belarus.svg Gennady Korotkevich tourist), QA ( Flag of Latvia.svg Vladimir Timofejev v.t.), SRM ( Flag of Belarus.svg Gennady Korotkevich tourist)
Nov 13–16, 2018TCO18 (Dallas, TX, USA) [14] [15] [16] [17] Southfork Ranch Dev ( Flag of Vietnam.svg Ngoc Pham ngoctay), Dg ( Flag of Thailand.svg Teeraporn Sriponpak iamtong), F2F ( Flag of Russia.svg Dmitry Kondakov kondakovdmitry), MM ( Flag of Belarus.svg Gennady Korotkevich tourist), Pr ( Flag of Sri Lanka.svg Mouly Gunarathne moulyg), SRM ( Flag of Russia.svg Petr Mitrichev Petr)
Oct 21–24, 2017TCO17 (Buffalo, NY, USA) [18] [19] [20] [21] Buffalo Niagara Medical Campus Dev ( Flag of Spain.svg Sergey Pogodin birdofpreyru), Dg ( Flag of Indonesia.svg Panji Kharisma kharm), F2F ( Flag of Nigeria.svg Akinwale Ariwodola akinwale), MM ( Flag of Poland.svg Przemysław Dębiak  [ pl ]Psyho), Pr ( Flag of Sri Lanka.svg Mouly Gunarathne moulyg), SRM ( Flag of the People's Republic of China.svg Yuhao Du xudyh)
Nov 18–21, 2016TCO16 (Washington DC, USA) [22] Booz Allen Hamilton Innovation CenterDev ( Flag of Poland.svg Łukasz Sentkiewicz Sky_), Dg ( Flag of Indonesia.svg Junius Albertho abedavera), F2F ( Flag of the People's Republic of China.svg vvvpig), MM ( Flag of Poland.svg Przemysław Dębiak  [ pl ]Psyho), Pr ( Flag of Sri Lanka.svg Mouly Gunarathne moulyg), SRM ( Flag of Japan.svg Makoto Soejima rng_58)
Nov 8–10, 2015TCO15 (Indianapolis, IN, USA) [23] [note 4] Omni Severin HotelDev ( Flag of Poland.svg Łukasz Sentkiewicz Sky_), IA ( Flag of Spain.svg Silvana Vacchina f0rc0d3r), MM ( Flag of the People's Republic of China.svg TianCheng Lou ACRush), SRM ( Flag of Russia.svg Petr Mitrichev Petr)
Sep 21–22, 2015TCO15 – Yogyakarta (Indonesia) [23] [note 4] Eastparc HotelDg ( Flag of Indonesia.svg Junius Albertho abedavera), Pr ( Flag of Sri Lanka.svg Dileepa Balasuriya dileepa)
Nov 16–19, 2014TCO14 – San Francisco (CA, USA) [24] [25] [26] [27] Pier 48Dev ( Flag of Poland.svg Łukasz Sentkiewicz Sky_), Dg ( Flag of Indonesia.svg Faridah Amalia Mandaga fairy_ley), F2F ( Flag of Nigeria.svg Akinwale Ariwodola akinwale), MM ( Flag of Poland.svg Przemysław Dębiak  [ pl ]Psyho), SDg ( Flag of the People's Republic of China.svg Meng Wang albertwang), SRM ( Flag of Belarus.svg Gennady Korotkevich tourist)
Nov 10–14, 2013TCO13 (Washington DC, USA) [28] [29] Capital Hilton HotelDev ( Flag of the People's Republic of China.svg Zhijie Liu morehappiness), Dg ( Flag of Indonesia.svg Junius Albertho abedavera), F2F ( Flag of India.svg Pratap Koritala supercharger), MM ( Flag of Poland.svg Przemysław Dębiak  [ pl ]Psyho), SDg ( Flag of the People's Republic of China.svg Meng Wang albertwang), SRM ( Flag of Russia.svg Petr Mitrichev Petr)
Sep 30 – October 4, 2012TCO12 (Orlando, FL, USA) [30] [31] Caribe Royale HotelDev ( Flag of the People's Republic of China.svg Yang Li Yeung), Dg ( Flag of Thailand.svg Teeraporn Sriponpak iamtong), F2F ( Flag of the People's Republic of China.svg Kan Luo hohosky), MM ( Flag of South Korea.svg Won-Seok Yoo ainu7), SDg ( Flag of Canada (Pantone).svg Michael Paweska argolite), SRM ( Flag of Russia.svg Egor Egor)
Sep 25–28, 2011TCO11 (Hollywood, FL, USA) [32] Westin Diplomat Resort & Spa Dev ( Flag of the Philippines.svg Franklin Guevarra j3_guile), Dg ( Flag of Indonesia.svg Junius Albertho abedavera), F2F ( Flag of the People's Republic of China.svg Yang Lee Yeung), MM ( Flag of Poland.svg Przemysław Dębiak  [ pl ]Psyho), SDg ( Flag of the People's Republic of China.svg WuJian Ye BLE), SRM ( Flag of Japan.svg Makoto Soejima rng_58)
Oct 11–14, 2010TCO10 (Las Vegas, NV, USA) [33] The Mirage Dev ( Flag of the People's Republic of China.svg Yang Li Yeung), Dg ( Flag of Indonesia.svg Tri Joko Rubiyanto djackmania), F2F ( Flag of Ukraine.svg Margaryta Skrypachova Margarita), MM ( Flag of Japan.svg Yoichi Iwata wata), SDg ( Flag of Canada (Pantone).svg Michael Paweska argolite), SRM ( Flag of Japan.svg Makoto Soejima rng_58)
Jun 1–4, 2009TCO09 (Las Vegas, NV, USA) [34] The Mirage Dev [note 5] (Architecutre: Flag of the People's Republic of China.svg GuanZhuo Jin Standlove; Assembly: Flag of Argentina.svg Pablo Wolfus pulky; Component Development: Flag of the People's Republic of China.svg Yanbo Wu assistant; Specification: Flag of Canada (Pantone).svg Piotr Paweska AleaActaEst), Dg ( Flag of Australia (converted).svg Dale Napier djnapier), F2F ( Flag of the People's Republic of China.svg Ninghai Huang PE), MM ( Flag of Russia.svg Andrey Lopatin KOTEHOK), SDg ( Flag of Ukraine.svg Olexiy Sadovnikov saarixx), SRM ( Flag of the People's Republic of China.svg Bin Jin crazyb0y)
May 11–15, 2008TCO08 (Las Vegas, NV, USA) [35] [36] The Mirage Dev ( Flag of Brazil.svg Romano Silva romanoTC), Dg ( Flag of the Philippines.svg Nino Rey Ronda oninkxronda), MM ( Flag of Poland.svg Przemysław Dębiak  [ pl ]Psyho), SDg ( Flag of the United States.svg Tim Roberts Pops), SRM ( Flag of Poland.svg Tomasz Czajka  [ pl ]tomek)
Jun 26–29, 2007TCO07 (Las Vegas, NV, USA) [37] [note 6] The Mirage Dev ( Flag of the People's Republic of China.svg Feng He hefeng), Dg ( Flag of the People's Republic of China.svg Yiming Liao yiming), MM ( Flag of Poland.svg Mateusz Zotkiewicz Mojito1), SDg ( Flag of the United States.svg Sergey Kalinchenko kyky), SRM ( Flag of the Netherlands.svg Jan Kuipers Jan_Kuipers)
May 3–5, 2006TCO06 (Las Vegas, NV, USA) [38] [39] [40] [note 7] Aladdin Resort and Casino Dev ( Flag of Indonesia.svg Sindunata Sudarmagi sindu), SDg ( Flag of the United States.svg Tim Roberts Pops), SRM ( Flag of Russia.svg Petr Mitrichev Petr)
Oct 12–14, 2005TCO05 (Santa Clara, CA, USA) [41] [note 8] Santa Clara MarriotDev ( Flag of the People's Republic of China.svg Qi Liu visualage), SDg ( Flag of Russia.svg Nikolay Archak nicka81), SRM ( Flag of Poland.svg Eryk Kopczyński  [ pl ]Eryx)
Nov 11–12, 2004TCO04 (Santa Clara, CA, USA) [42] [note 9] Santa Clara MarriotDev ( Flag of the People's Republic of China.svg GuanZhuo Jin Standlove), SDg ( Flag of Romania.svg Adrian Carcu adic), SRM ( Flag of Poland.svg Tomasz Czajka  [ pl ]tomek)
Dec 4–5, 2003TCO03 (Uncasville, CT, USA) [43] [note 10] Mohegan Sun CasinoSRM ( Flag of Poland.svg Tomasz Czajka  [ pl ]tomek)
Nov 22–23, 2002TCI02 (Uncasville, CT, USA) [44] [45] [note 11] Mohegan Sun CasinoSRM ( Flag of Australia (converted).svg John Dethridge John Dethridge)
Nov 2–3, 2001TCI01 (Mashantucket, CT, USA) [46] [note 12] Foxwoods Resort Casino SRM ( Flag of the United States.svg jonmac)

Topcoder Open victories by countries represented by champions

Topcoder Open Victories by Countries Represented by Champions [note 13]
CountryTotalCompetition Tracks [note 1]
DevDgF2FIAMMPrQASDgSRM
Flag of Argentina.svg Argentina11
Flag of Australia (converted).svg Australia211
Flag of Belarus.svg Belarus725
Flag of Brazil.svg Brasil211
Flag of Canada (Pantone).svg Canada312
Flag of the People's Republic of China.svg China221114132
Flag of Greece.svg Greece11
Flag of India.svg India211
Flag of Indonesia.svg Indonesia817
Flag of Japan.svg Japan523
Flag of Latvia.svg Latvia11
Flag of Nepal.svg Nepal11
Flag of the Netherlands.svg Netherlands11
Flag of Nigeria.svg Nigeria22
Flag of the Philippines.svg Philippines211
Flag of Poland.svg Poland15384
Flag of Romania.svg Romania211
Flag of Russia.svg Russia81115
Flag of South Korea.svg South Korea11
Flag of Spain.svg Spain321
Flag of Sri Lanka.svg Sri Lanka743
Flag of Thailand.svg Thailand55
Flag of Turkey.svg Turkey11
Flag of Ukraine.svg Ukraine211
Flag of Vietnam.svg Vietnam11
Flag of the United States.svg USA431

Notes

  1. 1 2 The following abbreviations are used in the table "The list of Topcoder Open and Regional events": Dev = Software Development (Code); Dg = UI Design (also called as Studio Design); DS = Data Science; F2F = First to Finish (also called Mod Dash); IA = Information Architecture (Wireframes); MM = Marathon Match; Pr = UI Prototype; QA = Quality Assurance Competition; SDg = Software Design (also called Component Design, and just Design); SRM = Algorithm.
  2. ↑ Topcoder member nicknames are given in italic
  3. ↑ Originally planned to be held in Seattle, WA, USA; held online due to COVID-19 pandemic.
  4. 1 2 In 2015, on-site finals for UI Design and UI Prototype competitions were held at TCO15 Yogyakarta event; and other on-site finals: Competitive Programming (SMR), Information Architecture, Marathon Match, Software Development were held at TCO15 Indianapolis event.
  5. ↑ Software development competition that year was online-only, and it was divided into Architecture, Assembly, Component Design, Component Development, and Specification sub-tracks.
  6. ↑ Officially titled 2007 TopCoder Open Sponsored by AOL
  7. ↑ Officially titled 2005 TopCoder Open Sponsored by AMD
  8. ↑ Officially titled 2005 TopCoder Open Sponsored by Sun Microsystems
  9. ↑ Officially titled 2004 TopCoder Open Sponsored by Microsoft
  10. ↑ Officially titled 2003 TopCoder Open Sponsored by Intel
  11. ↑ Officially titled 2002 TopCoder Invitational
  12. ↑ Officially titled 2001 TopCoder Invitational
  13. ↑ Updated up to TCO22, inclusive

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References

  1. ↑ Brandel, Mary (January 22, 2008). "Rock star coders". Computerworld. Retrieved April 29, 2018.
  2. ↑ Lai, Eric (July 9, 2007). "Jiazhi Wu: Programming's Crack Competitor". Computerworld. Retrieved April 29, 2018.
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  7. ↑ "FAQ - TOPCODER COMMUNITY TOWN HALL WITH DOUG HANSON, TOPCODER CEO". Topcoder. February 24, 2023. Retrieved February 25, 2023.
  8. ↑ Sial, Rashid (April 25, 2017). "SRM Overview". Topcoder Help Center. Retrieved April 23, 2018.
  9. ↑ "The list of main Topcoder Open events". Topcoder. Retrieved April 19, 2018.
  10. ↑ "2022 Topcoder Open".
  11. ↑ "2021 Topcoder Open".
  12. ↑ "2020 Topcoder Open".
  13. ↑ "2019 Topcoder Open". 2019 Topcoder Open. Retrieved September 8, 2018.
  14. ↑ "Topcoder Open 2018".
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  33. ↑ "2010 TopCoder Open" . Retrieved April 22, 2018.
  34. ↑ "2009 TopCoder Open" . Retrieved April 22, 2018.
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  41. ↑ "2005 TopCoder Open Sponsored by Sun Microsystems" . Retrieved April 22, 2018.
  42. ↑ "TopCoder Open 2004" . Retrieved April 22, 2018.
  43. ↑ "Topcoder Open 2003". Topcoder. Retrieved April 22, 2018.
  44. ↑ Biondi, Mary Beth (November 23, 2002). "The Land Down Under comes out On Top!". Topcoder. Retrieved April 19, 2018.
  45. ↑ Consilvio, Jean (December 9, 2002). "And the Winner Is..." Computerworld. Retrieved April 29, 2018.
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