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
Level 3 Sprout
Solved problems for 8 days in a row
Solved problems for 8 days in a row
31K
Level 4 Sprout
Solved problems for 16 days in a row
Solved problems for 16 days in a row
16K
Level 5 Sprout
Solved problems for 32 days in a row
Solved problems for 32 days in a row
9.7K
Level 6 Sprout
Solved problems for 64 days in a row
Solved problems for 64 days in a row
5.6K
Level 7 Sprout
Solved problems for 128 days in a row
Solved problems for 128 days in a row
2.8K
Level 8 Sprout
Solved problems for 256 days in a row
Solved problems for 256 days in a row
1.3K
Level 9 Sprout
Solved problems for 512 days in a row
Solved problems for 512 days in a row
426
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
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
The 9th Hanyang University Programming Contest
Participated in the 9th Hanyang University Programming Contest, or solved 1 or more problems in its open contest
Participated in the 9th Hanyang University Programming Contest, or solved 1 or more problems in its open contest
284
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
Christmas Gift (2022)
Earn at least 5 gifts from the Make a Tree event, 2022
Earn at least 5 gifts from the Make a Tree event, 2022
725
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
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
134K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
92K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
57K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
26K
Professional Problem-solver
Solve 500 problems
Solve 500 problems
5.4K