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Ruby II
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cs71107Ruby II
cs711079
Ruby II 291733 until Ruby I
2,335 Solved428 Contributions21 Reverse rivals
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Date Added# Unlocked UsersTier
  • 2023 UDPC
    Participated in the 2023 UDPC, or solved 1 or more problems in its open contest
    349
  • Spend 2023 with BOJ
    Spend 2023 with BOJ
    Solved 1 or more problems in Hello, BOJ 2023!
    290
  • Anime Cup (2023)
    Anime Cup (2023)
    Solved 1 or more problems in Anime Cup Season 1 or 2
    766
  • 2-Star Problem-solving Technician
    Solve 2,000 problems
    377
  • 1-Star Problem-solving Technician
    1-Star Problem-solving Technician
    Solve 1,000 problems
    1.7K
  • Professional Problem-solver
    Solve 500 problems
    6.5K
  • Skilled Problem-solver
    Skilled Problem-solver
    Solve 200 problems
    31K
  • Apprentice Problem-solver
    Apprentice Problem-solver
    Solve 100 problems
    65K
  • Beginner Problem-solver
    Solve 50 problems
    104K
  • Newbie Problem-solver
    Newbie Problem-solver
    Solve 10 problems
    149K
  • Spent 2022 with BOJ
    Spent 2022 with BOJ
    Solved 1 or more problems in Good Bye, BOJ 2022!
    606
  • UCPC 2022
    UCPC 2022
    Participated in UCPC 2022, or its open contest
    991
  • 16silver (2022)
    16silver (2022)
    Solved 1 or more problems in the 1st Silver Cup
    125
  • The 1st Blob Cup (2022)
    The 1st Blob Cup (2022)
    Solved 1 or more problems in the 1st Blob Cup
    317
  • IamCoder 2021 Year-end Contest
    IamCoder 2021 Year-end Contest
    Participated in IamCoder 2021 Year-end Contest, or solved 1 or more problems in its open contest
    170
  • Spend 2022 with BOJ
    Spend 2022 with BOJ
    Solved 1 or more problems in Hello, BOJ 2022!
    367
  • Spent 2021 with BOJ
    Spent 2021 with BOJ
    Solved 1 or more problems in Good Bye, BOJ 2021!
    644
  • SASA Programming Contest 2021
    SASA Programming Contest 2021
    Participated in SASA Programming Contest 2021, or solved 1 or more problems in its open contest
    172
  • Korea University Collegiate Programming Contest 2021
    Korea University Collegiate Programming Contest 2021
    Participated in Korea University Collegiate Programming Contest 2021
    42
  • Level 4 Sprout
    Level 4 Sprout
    Solved problems for 16 days in a row
    19K
    • 123