Problems
Arena
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 days10K
100 Days of Consistency
Condition Achieve max streak of 100 days3.6K
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 shop2.5K
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
:blobhanbyeol:
Just take my money and show me a way to reach Expert
Condition Solved 2 or more problems in the 1st Blob Cup239
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, 20225.3K
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
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 — Diamond III
Condition Reached Diamond III in Season 202194
Good Game Well Played
Competitive programming is a game. The Semi-Game Cup is a CP competition. The Semi-Game Cup is therefore a game competition.
Condition Solved 1 or more problems in Semi-Game Cup 3171
The 1st Chocolate Cup
Condition Solved 1 or more problems in the 1st Chocolate Cup192
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
The 9th Hanyang University Programming Contest
Condition Participated in the 9th Hanyang University Programming Contest, or solved 1 or more problems in its open contest284
2022 1st Calculus, Probability, and Statistics Cup
Condition Solved 1 or more problems in the 2022 1st Calculus, Probability, and Statistics Cup360
Full Binary Christmas Tree
Condition Reach level 4 or deeper on the deepest ornament card in the Make a Tree event, 20221.1K