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Diamond IV
ProblemsUnrated
Arena
y1j2sungDiamond IV
y1j2sung7
Diamond IV 2300100 until Diamond III
554 Solved120 Contributions3 Reverse rivals
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Date Added# Unlocked UsersTier
  • 2023 Chung-Ang University CHAC
    Participated in 2023 Chung-Ang University CHAC, or achieved a score of over 10 in its open contest
    341
    • 1