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  2. Codeforces - Wikipedia

    en.wikipedia.org/wiki/Codeforces

    The first Codeforces Round was held on February 19, 2010 with 175 participants. As of the end of August 2022, over 800 rounds were held, with over 9000 registered competitors per round on average. [citation needed] Before 2012, Codeforces Rounds were titled "Codeforces Beta Rounds" to indicate that the system was still under development.

  3. Gennady Korotkevich - Wikipedia

    en.wikipedia.org/wiki/Gennady_Korotkevich

    Codeforces peak rating 4009 (30 August 2024) Gennady Korotkevich (Belarusian: Генадзь Караткевіч, Hienadź Karatkievič, Russian: Геннадий Короткевич; born 25 September 1994) is a Belarusian competitive sport programmer who has won major international competitions since the age of 11, as well as numerous ...

  4. List of aircraft registration prefixes - Wikipedia

    en.wikipedia.org/wiki/List_of_aircraft...

    Registration prefix Adopted Retired Replaced with Presentation and notes Aden: VR-A [28] 1939 1939 British colonial allocation Algeria: F-O [28] [a] 1929 1962 7T French colonial allocation Angola: CR-L [28] [29] 1929 1975 D2 Portuguese colonial allocation Argentina: R [28] [b] 1929 1932 LV Austria: A [28] 1929 1939 OE Bahamas: VP-B [28] 1929 ...

  5. Meta Hacker Cup - Wikipedia

    en.wikipedia.org/wiki/Meta_Hacker_Cup

    Meta Hacker Cup (formerly known as Facebook Hacker Cup) is an annual international programming competition hosted and administered by Meta Platforms. The competition began in 2011 as a means to identify top engineering talent for potential employment at Meta Platforms. [2] The competition consists of a set of algorithmic problems which must be ...

  6. List of ISO 3166 country codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_3166_country_codes

    The sortable table below contains the three sets of ISO 3166-1 country codes for each of its 249 countries, links to the ISO 3166-2 country subdivision codes, and the Internet country code top-level domains (ccTLD) which are based on the ISO 3166-1 alpha-2 standard with the few exceptions noted.

  7. Topcoder - Wikipedia

    en.wikipedia.org/wiki/TopCoder

    Topcoder was founded in 2001 by Jack Hughes, chairman and Founder of the Tallan company. [1] [2] The name was formerly spelt as "TopCoder" until 2013.Topcoder ran regular competitive programming challenges, known as Single Round Matches or "SRMs," where each SRM was a timed 1.5-hour algorithm competition and contestants would compete against each other to solve the same set of problems.

  8. Voter registration in the United States - Wikipedia

    en.wikipedia.org/wiki/Voter_registration_in_the...

    An October 2008 voter registration rally held on behalf of Barack Obama's presidential campaign, on Philadelphia's Benjamin Franklin Parkway. A voter registration drive is an effort undertaken by a government authority, political party or other entity to register to vote persons otherwise entitled to vote. In many jurisdictions, the functions ...

  9. Elo rating system - Wikipedia

    en.wikipedia.org/wiki/Elo_rating_system

    The Elo[a] rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess or esports. It is named after its creator Arpad Elo, a Hungarian-American physics professor. The Elo system was invented as an improved chess-rating system over the previously used Harkness system, [1] but is also used as a ...