Problems
Arena
Level 1 Sprout
Solved problems for 2 days in a row
Solved problems for 2 days in a row
116K
Level 2 Sprout
Solved problems for 4 days in a row
Solved problems for 4 days in a row
73K
Level 3 Sprout
Solved problems for 8 days in a row
Solved problems for 8 days in a row
34K
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
★★Seventeen Stars★★ (2022)
Achieved 17-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
Achieved 17-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
2.1K
2022 Sogang University Freshman Cup
Participated in 2022 Sogang University Freshman Cup, or solved 2 or more problems in its open contest
Participated in 2022 Sogang University Freshman Cup, or solved 2 or more problems in its open contest
335
2022 Inha University Programming Contest
Participated in 2022 Inha University Programming Contest, or solved 1 or more problems in its open contest
Participated in 2022 Inha University Programming Contest, or solved 1 or more problems in its open contest
291
The 1st Chocolate Cup (2022)
Solved 1 or more problems in the 1st Chocolate Cup
Solved 1 or more problems in the 1st Chocolate Cup
191
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
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
142K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
98K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
61K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
29K
Professional Problem-solver
Solve 500 problems
Solve 500 problems
5.9K
1-Star Problem-solving Technician
Solve 1,000 problems
Solve 1,000 problems
1.5K
Boardgame Cup (2023)
Solved 1 or more problems in Boardgame Cup
Solved 1 or more problems in Boardgame Cup
584
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
51K
Master of Balance - Silver
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 6 or more tags
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 6 or more tags
31K
Creator of Balance - Silver
Achieve a rating of 200 or higher for all 8 tags displayed on the profile
Achieve a rating of 200 or higher for all 8 tags displayed on the profile
4.7K