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Date Added# Unlocked UsersTier
  • SciOI 2022
    Participated in SciOI 2022, or solved 1 or more problems in its open contest
    226
  • 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
  • UCPC 2023
    UCPC 2023
    UCPC 2023 혹은 Open Contest에 출전
    873
  • FunctionCup 2023
    FunctionCup 2023
    FunctionCup 2023 혹은 Open Contest에 출전해 1점 이상 달성
    236
  • UCPC 2024
    UCPC 2024
    UCPC 2024 혹은 Open Contest에 출전
    782
  • 12