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Platinum II
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C+
Arena
calculusPlatinum II
calculus6
Platinum II 204555 until Platinum I
827 Solved143 Contributions14 Reverse rivals
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Date Added# Unlocked UsersTier
  • Level 1 Sprout
    Solved problems for 2 days in a row
    122K
  • Level 2 Sprout
    Level 2 Sprout
    Solved problems for 4 days in a row
    77K
  • Level 3 Sprout
    Level 3 Sprout
    Solved problems for 8 days in a row
    36K
  • Level 5 Sprout
    Level 5 Sprout
    Solved problems for 32 days in a row
    11K
  • Level 7 Sprout
    Level 7 Sprout
    Solved problems for 128 days in a row
    3.4K
  • Spent 2021 with BOJ
    Spent 2021 with BOJ
    Solved 1 or more problems in Good Bye, BOJ 2021!
    644
  • 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
  • Newbie Problem-solver
    Newbie Problem-solver
    Solve 10 problems
    149K
  • Beginner Problem-solver
    Beginner Problem-solver
    Solve 50 problems
    103K
  • Apprentice Problem-solver
    Apprentice Problem-solver
    Solve 100 problems
    65K
  • Skilled Problem-solver
    Skilled Problem-solver
    Solve 200 problems
    31K
  • Professional Problem-solver
    Professional Problem-solver
    Solve 500 problems
    6.4K
  • The 2nd MatKor Cup : 2023 Winter
    The 2nd MatKor Cup : 2023 Winter
    Participated in the 2nd MatKor Cup, or solved 1 or more problems in its open contest
    473
  • 2023 KSA Automata Winter Contest
    2023 KSA Automata Winter Contest
    Achieved a score of over 100 in the 2023 KSA Automata Winter Contest
    362
  • Anime Cup (2023)
    Anime Cup (2023)
    Solved 1 or more problems in Anime Cup Season 1 or 2
    766
  • 2023 UDPC
    2023 UDPC
    Participated in the 2023 UDPC, or solved 1 or more problems in its open contest
    349
  • Guardian of Balance - Bronze
    Guardian of Balance - Bronze
    Of the 8 tags displayed on the profile, achieve a rating of over 30 for 4 or more tags
    104K
  • Master of Balance - Bronze
    Master of Balance - Bronze
    Of the 8 tags displayed on the profile, achieve a rating of over 30 for 6 or more tags
    77K
  • 123