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Diamond IV
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cjhoolDiamond IV
cjhool6
Diamond IV 232971 until Diamond III
5,657 Solved1 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
  • Level 9 Sprout
    Level 9 Sprout
    Solved problems for 512 days in a row
    592
  • Sogang Programming Contest 2022
    Sogang Programming Contest 2022
    Participated in Sogang Programming Competition 2022, or solved 1 or more problems in its open contest
    292
  • Gomgom Silver Award (2022)
    Gomgom Silver Award (2022)
    Solved 1 or more problems in the 2nd Gomgom Cup · © Hana Kim
    553
  • 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 Seoul Cyber University Programming Contest
    2022 Seoul Cyber University Programming Contest
    Participated in 2022 Seoul Cyber University Programming Contest, or solved 1 or more problems in its open contest
    339
  • Christmas Gift (2022)
    Christmas Gift (2022)
    Earn at least 5 gifts from the Make a Tree event, 2022
    725
  • 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
  • Newbie Problem-solver
    Newbie Problem-solver
    Solve 10 problems
    149K
  • Beginner Problem-solver
    Beginner Problem-solver
    Solve 50 problems
    103K
  • 1235