Problems
Arena
The 2nd MatKor Cup : 2023 Winter
Participated in the 2nd MatKor Cup, or solved 1 or more problems in its open contest
Participated in the 2nd MatKor Cup, or solved 1 or more problems in its open contest
473
Professional Problem-solver
Solve 500 problems
Solve 500 problems
6.4K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
31K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
65K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
103K
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
149K
GBS Coding Contest 2022
Participated in GBS Coding Contest 2022, or solved 1 or more problems in its open contest
Participated in GBS Coding Contest 2022, or solved 1 or more problems in its open contest
292
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
2022 Seoul Cyber University Programming Contest
Participated in 2022 Seoul Cyber University Programming Contest, or solved 1 or more problems in its open contest
Participated in 2022 Seoul Cyber University Programming Contest, or solved 1 or more problems in its open contest
339
The 9th Hanyang University Programming Contest
Participated in the 9th Hanyang University Programming Contest, or solved 1 or more problems in its open contest
Participated in the 9th Hanyang University Programming Contest, or solved 1 or more problems in its open contest
284
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
Gomgom Silver Award (2022)
Solved 1 or more problems in the 2nd Gomgom Cup · © Hana Kim
Solved 1 or more problems in the 2nd Gomgom Cup · © Hana Kim
553
Sogang Programming Contest 2022
Participated in Sogang Programming Competition 2022, or solved 1 or more problems in its open contest
Participated in Sogang Programming Competition 2022, or solved 1 or more problems in its open contest
292
9500-card (2022)
Achieved 9,500 points in the Solved Blackjack Event, 2022
Achieved 9,500 points in the Solved Blackjack Event, 2022
435
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
Chicken Dance (2022)
Solved 1 or more problems in the 1st Gomgom Cup · © Hana Kim
Solved 1 or more problems in the 1st Gomgom Cup · © Hana Kim
586
16silver (2022)
Solved 1 or more problems in the 1st Silver Cup
Solved 1 or more problems in the 1st Silver Cup
125