Problems
Arena
Creator of Balance - Gold
Achieve a rating of 800 or higher for all 8 tags displayed on the profile
Achieve a rating of 800 or higher for all 8 tags displayed on the profile
835
2023 UDPC
Participated in the 2023 UDPC, or solved 1 or more problems in its open contest
Participated in the 2023 UDPC, or solved 1 or more problems in its open contest
349
A yellow badge with a blue ribbon that seems to fit somewhere (2023)
Solved a problem with ‘41’ in its ID, between 6:00 AM April 1, 2023 KST and 1:00 AM April 3, 2023 KST
Solved a problem with ‘41’ in its ID, between 6:00 AM April 1, 2023 KST and 1:00 AM April 3, 2023 KST
1.2K
Dress Rehearsal (2023)
Achieved a score of over 41 in the Dress Rehearsal
Achieved a score of over 41 in the Dress Rehearsal
441
SUAPC 2023w
Participated in SUAPC 2023 Winter, or solved 1 or more problems in its open contest
Participated in SUAPC 2023 Winter, or solved 1 or more problems in its open contest
380
Anime Cup (2023)
Solved 1 or more problems in Anime Cup Season 1 or 2
Solved 1 or more problems in Anime Cup Season 1 or 2
766
2023 KSA Automata Winter Contest
Achieved a score of over 100 in the 2023 KSA Automata Winter Contest
Achieved a score of over 100 in the 2023 KSA Automata Winter Contest
362
Boardgame Cup (2023)
Solved 1 or more problems in Boardgame Cup
Solved 1 or more problems in Boardgame Cup
584
1-Star Problem-solving Technician
Solve 1,000 problems
Solve 1,000 problems
1.5K
Professional Problem-solver
Solve 500 problems
Solve 500 problems
5.7K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
28K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
60K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
96K
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
139K
Spent 2022 with BOJ
Solved 1 or more problems in Good Bye, BOJ 2022!
Solved 1 or more problems in Good Bye, BOJ 2022!
606
2022 1st Calculus, Probability, and Statistics Cup
Solved 1 or more problems in the 2022 1st Calculus, Probability, and Statistics Cup
Solved 1 or more problems in the 2022 1st Calculus, Probability, and Statistics Cup
359
Christmas Gift (2022)
Earn at least 5 gifts from the Make a Tree event, 2022
Earn at least 5 gifts from the Make a Tree event, 2022
725
Warmth in the Snow (2022)
Solved 1 or more problems in the Invitation of the Winter Forest
Solved 1 or more problems in the Invitation of the Winter Forest
462
Summer Postcard Decoration: Top 1,000 (2022)
Achieved a rank of top 1,000 in the Summer Postcard Decoration event, 2022
Achieved a rank of top 1,000 in the Summer Postcard Decoration event, 2022
884
2 Solves
Celebrated the 2nd anniversary of solved.ac
Celebrated the 2nd anniversary of solved.ac
9.7K