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
Sinchon Station (2022)
Participated in 2022 ICPC Sinchon Summer Algorithm Camp Contest, or solved 1 or more problems in its open contest
Participated in 2022 ICPC Sinchon Summer Algorithm Camp Contest, or solved 1 or more problems in its open contest
388
2022 IGRUS Newbie Programming Contest
Participated in 2022 IGRUS Newbie Programming Contest, or solved 1 or more problems in its open contest
Participated in 2022 IGRUS Newbie Programming Contest, or solved 1 or more problems in its open contest
292
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
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
IamCoder 2022 Year-end Contest
Participated in IamCoder 2022 Year-end Contest, or in its open contest
Participated in IamCoder 2022 Year-end Contest, or in its open contest
269
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
SciOI 2022
Participated in SciOI 2022, or solved 1 or more problems in its open contest
Participated in SciOI 2022, or solved 1 or more problems in its open contest
226
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
133K
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