Problems
Arena
2023 Chung-Ang University CHAC
Participated in 2023 Chung-Ang University CHAC, or achieved a score of over 10 in its open contest
Participated in 2023 Chung-Ang University CHAC, or achieved a score of over 10 in its open contest
341
Professional Problem-solver
Solve 500 problems
Solve 500 problems
5.9K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
29K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
61K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
98K
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
142K
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
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
Level 3 Sprout
Solved problems for 8 days in a row
Solved problems for 8 days in a row
34K
Level 2 Sprout
Solved problems for 4 days in a row
Solved problems for 4 days in a row
73K
Level 1 Sprout
Solved problems for 2 days in a row
Solved problems for 2 days in a row
116K