Problems
Arena
Level 1 Sprout
Solved problems for 2 days in a row
Solved problems for 2 days in a row
108K
Level 2 Sprout
Solved problems for 4 days in a row
Solved problems for 4 days in a row
68K
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
IamCoder 2021 Year-end Contest
Participated in IamCoder 2021 Year-end Contest, or solved 1 or more problems in its open contest
Participated in IamCoder 2021 Year-end Contest, or solved 1 or more problems in its open contest
170
Spend 2022 with BOJ
Solved 1 or more problems in Hello, BOJ 2022!
Solved 1 or more problems in Hello, BOJ 2022!
367
Hello, world! (2022)
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
747
Binary Game 2 (2022)
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
747
Level 3 Sprout
Solved problems for 8 days in a row
Solved problems for 8 days in a row
31K
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
UCPC 2022
Participated in UCPC 2022, or its open contest
Participated in UCPC 2022, or its open contest
991
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
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
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
92K
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
134K
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
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
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
UCPC 2023 출전
UCPC 2023 혹은 Open Contest에 출전
UCPC 2023 혹은 Open Contest에 출전
873
제3회 고려대학교 MatKor Cup : 2023 Summer
제3회 고려대학교 MatKor Cup : 2023 Summer 혹은 Open Contest Phase 1, Phase 2 중 하나 이상에 출전
제3회 고려대학교 MatKor Cup : 2023 Summer 혹은 Open Contest Phase 1, Phase 2 중 하나 이상에 출전
490