Problems
Arena
시즌 3 다이아몬드 4
Condition 시즌 3에 다이아몬드 4 달성247
시즌 2 다이아몬드 4
Condition 시즌 2에 다이아몬드 4 달성184
Midsummer Memories
Condition Achieve a score of over 1,800 in the Postcard Decoration Event 20221.4K
Season 2021 — Diamond V
Condition Reached Diamond V in Season 2021206
Magician of the Library
Celebrated the 2nd anniversary of solved.ac
Condition Solve 1 or more previously unsolved problems between 6:00 AM on May 30, 2022 and 6:00 AM on June 6, 20229.7K
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, 20225.4K
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
On the Way to Work
Wanna take the bus to the otherworldly?
Condition Participated in Sogang Programming Contest 2021, or its Open Contest132
100 Days of Consistency
Condition Achieve max streak of 100 days3.7K
30 Days of Sincerity
Condition Achieve max streak of 30 days10K
Standard Library
Celebrated the 1st anniversary of solved.ac
Condition Solved previously unsolved problem at between May 31st, 2021 00:00 and June 8th, 2021 00:00 (KST)5K