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
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
30 Days of Sincerity
Condition Achieve max streak of 30 days11K
ICPC World Finals Moscow
Condition Participated in ICPC World Finals Moscow Cheering Event601
100 Days of Consistency
Condition Achieve max streak of 100 days4K
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
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
All Solve! — Bronze V
Condition Solved every Bronze V problem after November 30th, 20212.3K
On the Way to Work
Wanna take the bus to the otherworldly?
Condition Participated in Sogang Programming Contest 2021, or its Open Contest132
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
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
Good Bye, BOJ 2021!
Good Bye, 2021!
Condition Solved 1 or more problems in Good Bye, BOJ 2021!646
Opening of the Year 2022
Hello, 2022!
Condition Solved 1 or more problems in Hello, BOJ 2022!368
</21> <22>
You, a minute ago · solved.ac
Condition Solved 1 or more problems in Good Bye, BOJ 2021! and Hello, BOJ 2022!279
200 Days of Diligence
Condition Achieve max streak of 200 days1.9K
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, 20225.8K
Formula Completion Game
4 1 5 5 5 = 38
Condition Participated in the 1st Silver Cup215
Green Matrix Grid: Dark Mode
More epic green matrix grid
Condition (Hidden)9K
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