Problems
Arena
If you need more burgers or coke, please feel free to ask our staff
We will eat burgers if you ask us
Condition Participated in EtvycAuRLZpb6hhe86x0, or bought the background at the coin shop1.4K
30 Days of Sincerity
Condition Achieve max streak of 30 days11K
100 Days of Consistency
Condition Achieve max streak of 100 days4.1K
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 shop2.6K
200 Days of Diligence
Condition Achieve max streak of 200 days2K
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, 20226K
Green Matrix Grid: Dark Mode
More epic green matrix grid
Condition (Hidden)9.2K
Icons: Dark Mode
Icons in solved.ac, now in dark mode.
Condition (Hidden)4.5K
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 — Platinum II
Condition Reached Platinum II in Season 2021237
365 Days of Brilliance
Condition Achieve max streak of 365 days955
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
ICPC World Finals Dhaka
Condition Participated in ICPC World Finals Dhaka Cheering Event871
Walking Through the Winter Forest
To feel the beauty of snowflakes, one must endure the cold.
Condition Solved 1 or more problems in the Invitation of the Winter Forest466
Full Binary Christmas Tree
Condition Reach level 4 or deeper on the deepest ornament card in the Make a Tree event, 20221.1K
SciOI 2022
Condition Participated in SciOI 2022, or solved 1 or more problems in its open contest88
Black and White
Life, like backgammon, is constant decision-making under uncertainty.
Condition Solved 3 or more problems in the Boardgame Cup481
The Entrepreneur's Guide to Mars
Coming to Mars was a big step. Making it habitable will give us a new world.
Condition Solved 5 or more problems in the Boardgame Cup262
The Art of Analysis
After a bad opening, there is hope for the middle game. After a bad middle game, there is hope for the endgame. But once you are in the endgame, the moment of truth has arrived.
Condition Solved 7 or more problems in the Boardgame Cup105