Problems
Arena
시즌 2 다이아몬드 2
Condition 시즌 2에 다이아몬드 2 달성85
Season 2021 — Diamond II
Condition Reached Diamond II in Season 202165
God's Queries on This Wonderful Arrays!
Seeing that the value written in the Nth sequence in front of your house changes every day, you became angry and decided to sue Hanbyeol.
Condition Solve 1 or more problems which has '수열' or '쿼리' in its Korean version of the title, at some point after March 22, 20225.2K
Opening of the Year 2022
Hello, 2022!
Condition Solved 1 or more problems in Hello, BOJ 2022!368
Merry Christmas 2021
Solved a problem in Christmas or Christmas Eve 2021
Condition Solve 1 or more previously unsolved problems between 6:00 AM on December 24, 2021 and 6:00 AM on December 26, 20213.5K
Stars in the Evening Sky
She who has a star in her heart never gets lost in the dark
Condition Bought the background at the coin shop2.4K
All Solve! — Bronze V
Condition Solved every Bronze V problem after November 30th, 20212.1K
Pocky Day 2021
Solved a problem in Pocky day 2021
Condition Solved previously unsolved problem at between November 11th, 2021 06:00 and November 12th, 2021 06:00 (KST)3.3K
TRICK|TREAT 2021
Solved a problem in Halloween 2021
Condition Solved previously unsolved problem at between October 31st, 2021 06:00 and November 1st, 2021 06:00 (KST)2.6K
100 Days of Consistency
Condition Achieve max streak of 100 days3.5K
ICPC World Finals Moscow
Condition Participated in ICPC World Finals Moscow Cheering Event601
30 Days of Sincerity
Condition Achieve max streak of 30 days10K