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koosagaMaster
koosaga10
Master 3311
13,304 Solved3,600 Contributions303 Reverse rivals
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Date Added# Unlocked UsersTier
  • UCPC 2022
    Participated in UCPC 2022, or its open contest
    991
  • Semi-Game Cup 3 (2022)
    Semi-Game Cup 3 (2022)
    Solved 1 or more problems in Semi-Game Cup 3
    170
  • Warmth in the Snow (2022)
    Warmth in the Snow (2022)
    Solved 1 or more problems in the Invitation of the Winter Forest
    462
  • The 9th Hanyang University Programming Contest
    The 9th Hanyang University Programming Contest
    Participated in the 9th Hanyang University Programming Contest, or solved 1 or more problems in its open contest
    284
  • 2022 1st Calculus, Probability, and Statistics Cup
    2022 1st Calculus, Probability, and Statistics Cup
    Solved 1 or more problems in the 2022 1st Calculus, Probability, and Statistics Cup
    359
  • IamCoder 2022 Year-end Contest
    IamCoder 2022 Year-end Contest
    Participated in IamCoder 2022 Year-end Contest, or in its open contest
    269
  • Spent 2022 with BOJ
    Spent 2022 with BOJ
    Solved 1 or more problems in Good Bye, BOJ 2022!
    606
  • SciOI 2022
    SciOI 2022
    Participated in SciOI 2022, or solved 1 or more problems in its open contest
    226
  • Beginner Problem-solver
    Beginner Problem-solver
    Solve 50 problems
    92K
  • Skilled Problem-solver
    Skilled Problem-solver
    Solve 200 problems
    27K
  • Professional Problem-solver
    Professional Problem-solver
    Solve 500 problems
    5.5K
  • 2-Star Problem-solving Technician
    2-Star Problem-solving Technician
    Solve 2,000 problems
    317
  • Spend 2023 with BOJ
    Spend 2023 with BOJ
    Solved 1 or more problems in Hello, BOJ 2023!
    290
  • AI Network Scholarium I - 1 Solve
    AI Network Scholarium I - 1 Solve
    Solved 1 or more problems in AI Network Scholarium I
    118
  • Not a Robot
    Not a Robot
    Met a developer of solved.ac at an event hosted or sponsored by solved.ac with 20+ participants
    459
  • Master of Balance - Silver
    Master of Balance - Silver
    Of the 8 tags displayed on the profile, achieve a rating of over 200 for 6 or more tags
    29K
  • 1234