Problems
Arena
UCPC 2020 Finals
Participated in UCPC 2020 Finals
Participated in UCPC 2020 Finals
361
Level 1 Sprout
Solved problems for 2 days in a row
Solved problems for 2 days in a row
108K
Spent 2021 with BOJ
Solved 1 or more problems in Good Bye, BOJ 2021!
Solved 1 or more problems in Good Bye, BOJ 2021!
644
Spend 2022 with BOJ
Solved 1 or more problems in Hello, BOJ 2022!
Solved 1 or more problems in Hello, BOJ 2022!
367
UCPC 2022
Participated in UCPC 2022, or its open contest
Participated in UCPC 2022, or its open contest
991
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
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
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
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
133K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
92K
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
Spend 2023 with BOJ
Solved 1 or more problems in Hello, BOJ 2023!
Solved 1 or more problems in Hello, BOJ 2023!
290
Guardian of Balance - Bronze
Of the 8 tags displayed on the profile, achieve a rating of over 30 for 4 or more tags
Of the 8 tags displayed on the profile, achieve a rating of over 30 for 4 or more tags
92K
Guardian of Balance - Silver
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 4 or more tags
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 4 or more tags
47K
Record of the Stars: Chapter 1
Participate as a rated contestant in the Arena
Participate as a rated contestant in the Arena
3.2K
You Win!
Participate as a rated contestant in the Arena and increase your rating
Participate as a rated contestant in the Arena and increase your rating
3.1K
UCPC 2023 출전
UCPC 2023 혹은 Open Contest에 출전
UCPC 2023 혹은 Open Contest에 출전
873
FunctionCup 2023
FunctionCup 2023 혹은 Open Contest에 출전해 1점 이상 달성
FunctionCup 2023 혹은 Open Contest에 출전해 1점 이상 달성
236
SciOI 2023
SciOI 2023에 출전, 혹은 Open Contest에 출전해 100점 이상 획득
SciOI 2023에 출전, 혹은 Open Contest에 출전해 100점 이상 획득
332
2023년을 BOJ와 함께한
Good Bye, BOJ 2023! 대회 시간 내에 한 문제 이상 해결
Good Bye, BOJ 2023! 대회 시간 내에 한 문제 이상 해결
256