Problems
Arena
30 Days of Sincerity
Condition Achieve max streak of 30 days12K
100 Days of Consistency
Condition Achieve max streak of 100 days4.4K
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 shop2.8K
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
:blobhanbyeol:
Just take my money and show me a way to reach Expert
Condition Solved 2 or more problems in the 1st Blob Cup239
200 Days of Diligence
Condition Achieve max streak of 200 days2.2K
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, 20226.3K
Formula Completion Game
4 1 5 5 5 = 38
Condition Participated in the 1st Silver Cup215
Real Final Ghudegy Cup 2 2
Please make a poster 2 (I won't)
Condition Solved uncountable problem in Real Final Ghudegy Cup 2 2754
If you need more burgers or coke, please feel free to ask our staff 2
We will eat burgers if you ask us 2
Condition Solved uncountable problem in Real Final Ghudegy Cup 2 2754
Sogang Freshman Programming Contest 2022
This problem is too easy. It is very trivial.
Condition Participated in 2022 Sogang University Freshman Contest, or solved more than 2 problems in its open contest336
Goms Party
Condition Solved 1 or more problems in the 1st Gomgom Cup591
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
Season 2021 — Gold III
Condition Reached Gold III in Season 20213.2K
Inha University Programming Contest 2022
Condition Solved 1 or more problems in Inha University Programming Contest 2022, or in its open contest293
UCPC 2022
Condition Participated in UCPC 2022, or in its open contest996
365 Days of Brilliance
Condition Achieve max streak of 365 days1.1K
Midsummer Memories
Condition Achieve a score of over 1,800 in the Postcard Decoration Event 20221.4K
IOI 2022 Indonesia
Condition Participated in the Cheering Event of IOI 2022 Korean Representatives1.5K
Chung-Ang University Programming Contest 2022
Condition Participated in Chung-Ang University Programming Contest 2022, or solved 2 or more problems in its open contest218