Problems
Arena
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
70K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
110K
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
158K
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
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
Gomgom Gold Award (2022)
Solved 7 or more problems in the 2nd Gomgom Cup · © Hana Kim
Solved 7 or more problems in the 2nd Gomgom Cup · © Hana Kim
85
The 2nd Korea Aerospace University Programming Contest
Participated in the 2nd Korea Aerospace University Programming Contest, or solved 1 or more problems in its open contest
Participated in the 2nd Korea Aerospace University Programming Contest, or solved 1 or more problems in its open contest
164
Top Contributor, Season 2021
Top 100 contributor by contributions count in the 2021 season
Top 100 contributor by contributions count in the 2021 season
100
2 Solves
Celebrated the 2nd anniversary of solved.ac
Celebrated the 2nd anniversary of solved.ac
9.7K
★★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
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
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
SASA Programming Contest 2021
Participated in SASA Programming Contest 2021, or solved 1 or more problems in its open contest
Participated in SASA Programming Contest 2021, or solved 1 or more problems in its open contest
172
Level 6 Sprout
Solved problems for 64 days in a row
Solved problems for 64 days in a row
7K
Level 5 Sprout
Solved problems for 32 days in a row
Solved problems for 32 days in a row
12K
Level 4 Sprout
Solved problems for 16 days in a row
Solved problems for 16 days in a row
21K
Level 3 Sprout
Solved problems for 8 days in a row
Solved problems for 8 days in a row
39K
Level 2 Sprout
Solved problems for 4 days in a row
Solved problems for 4 days in a row
83K
Level 1 Sprout
Solved problems for 2 days in a row
Solved problems for 2 days in a row
131K