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
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, 20212.4K
All Solve! — Bronze IV
Condition Solved every Bronze IV problem after November 30th, 2021558
All Solve! — Silver V
Condition Solved every Silver V problem after November 30th, 202111
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
Sejong Lake Park
The largest artificial lake park in the Republic of Korea.
Condition Participated in SASA Programming Contest 2021, or solved 1 or more problems in its Open Contest173
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 days2.1K
Green Matrix Grid: Dark Mode
More epic green matrix grid
Condition (Hidden)9.7K
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
Icons: Dark Mode
Icons in solved.ac, now in dark mode.
Condition (Hidden)4.7K
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
Inha University Programming Contest 2022
Condition Solved 1 or more problems in Inha University Programming Contest 2022, or in its open contest293