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Christian Yongwhan Lim
  • Home
  • ICPC
  • Community Engagement
  • (Selected) Invited Talks
  • Teaching
  • Mentorship
  • Publications
  • Books
  • Problem Solving
Christian Yongwhan Lim
  • Home
  • ICPC
  • Community Engagement
  • (Selected) Invited Talks
  • Teaching
  • Mentorship
  • Publications
  • Books
  • Problem Solving
  • More
    • Home
    • ICPC
    • Community Engagement
    • (Selected) Invited Talks
    • Teaching
    • Mentorship
    • Publications
    • Books
    • Problem Solving

Competitive Learning Institute (CLI) Symposium

  • Chair, ICPC CLI Symposium


  • 2025 WF (@Baku): Chair

  • 2024 WF (@Astana): Co-Chair w/ Tomas Cerny

  • 2022 & 2023 WF (@Luxor): Chair (Education Track)

Journal of Competitive Learning

  • Senior Editor, ICPC Journal – The Journal of Competitive Learning


  • Editorial Team w/ Erich Baker (Chief), Tomas Cerny, Bill Booth, and Bill Poucher

Internships

  • Director of Internships, ICPC Foundation (2025 ~ Present)

  • Manager (2022 ~ 2025)


  • Key Projects

    • ICPC Archive (w/ Fredrik Niemela and Miguel Rodriguez)

    • ICPC Internship Website Development

    • ICPC Journal - The Journal of Competitive Learning (w/ Erich Baker)

    • ICPC Mobile App Development

    • ICPC Online Training in Competitive Programming (OTCP)

    • ICPC Systems and Operations (directly managed by John Buck and John Clevenger)

    • ICPC Website Development (w/ Toni Logar, Lidia Perovskaya, and Glenn Downing)

    • And... more!

  • 24+ active interns!

  • 79 successful completions of the internship! 🥳

Curriculum Committee

  • Co-Chair w/ Etienne Vouga (UT Austin)

North America Leadership

  • Monthly meetings

Trainer

  • ICPC North America Programming Camp - Online (NAPC-O): 2025

    • Participating host universities: University of Central Florida (UCF); Rose-Hulman; UT Austin; McGill; Columbia; UIUC; MIT.

    • Weekly rotation among the hosts in early 2026!

  • Columbia Competitive Programming Training Camp

    • Spring 2026? (Possibly, only if Columbia makes it to WF)

    • Spring 2025; Fall 2024;

  • ICPC North America Programming Camp (NAPC): 2024;

Judge

  • Chief Judge, ICPC North America Mid-Central

  • Guest Judge, ICPC North America Southern California

  • Judge, ICPC North America Qualifier


  • Mid-Central (Regional Contest Director [RCD]: Ed Corwin): 2025 (Chief); 2024; 2023;

  • Southern California (RCD: Jaime Cabrera): 2025 (Guest); 2024 (Guest); 2023 (Guest);

  • North America Qualifier (NAQ): 2025; 2024; 2023; 2022;

  • North-Central (RCD: Simanta Mitra): 2024; 2023;

Operations

  • ICPC World Finals: Astana 2024; Luxor 2022 & 2023;

  • ICPC North America Championship: 2025; 2024; 2023;

Site Director

  • ICPC North America Greater New York Regional

    • 2025?

    • 2024 (micro-sites); 2023;

Coach

  • Columbia University

    • 428+ members and growing!

    • Columbia-CU Again (2024 - 2025 cycle)

      • Team: Matthew Lou; Jiusi (Emma) Yin; Bufan (Brian) Zhao;

      • Co-Coach (3): Josh Alman; Innokentiy Kaurov; Grace Lim;

      • 3rd place in 2025 Spring Rutgers University Programming Contest (RUPC)

      • 3rd place (Bronze Medal) in 2024 ICPC Greater New York Regional

    • Columbia-CU later (2023 - 2024 cycle)

      • Team: Innokentiy Kaurov; Eric Yuang Shao; Kevin Yang;

      • Co-Coach (3): Josh Alman; Grace Lim; Benjamin Rubio;

      • 51st place to 2024 ICPC World Finals at Astana, Kazakhstan

      • 2nd place in 2025 Spring Rutgers University Programming Contest (RUPC) (without Kevin Yang)

      • 3rd place (Silver Medal) in 2024 ICPC North America Championship

    • Columbia-fortcoders (2021 - 2022 cycle)

      • Team: Jiajie Lai; Kaiheng Dai; Kevin Yang;

      • 26th place in 2022 ICPC World Finals at Luxor, Egypt

      • 8th place in 2022 ICPC North America Championship

      • 1st place (Regional Champion) in ICPC 2021 Greater New York Regional

    • ICPC Columbia University Local Contest (CULC)

      • Fall 2025 [6th]

      • Spring 2025 [5th]

      • Fall 2024 [4th]

      • Spring 2024 [3rd]

      • Fall 2023 [2nd]

      • Fall 2022 [1st]

    • ICPC North America Qualifier

      • 2024: 22 officially registered 1-person teams

      • 2023: 116 officially registered 1-person teams

      • 2022: 69 officially registered 3-person teams

    • ICPC Greater New York Regional

      • 2024: 6 teams (3rd place / 3rd institution) (host: micro-sites)

      • 2023: 15 teams (5th place / 4th institution) (host: Columbia)

      • 2022: 23 teams (9th place / 7th institution)

      • 2021: 13 teams (1st place / 1st institution)

christian.lim@arklex.ai | yongwhan@yongwhan.io | Resume | LinkedIn | GitHub | New York

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