Problems
Arena
Level 1 Sprout
Solved problems for 2 days in a row
Solved problems for 2 days in a row
113K
Level 2 Sprout
Solved problems for 4 days in a row
Solved problems for 4 days in a row
71K
Level 3 Sprout
Solved problems for 8 days in a row
Solved problems for 8 days in a row
33K
Level 4 Sprout
Solved problems for 16 days in a row
Solved problems for 16 days in a row
17K
Level 5 Sprout
Solved problems for 32 days in a row
Solved problems for 32 days in a row
10K
Level 6 Sprout
Solved problems for 64 days in a row
Solved problems for 64 days in a row
5.9K
Level 7 Sprout
Solved problems for 128 days in a row
Solved problems for 128 days in a row
3K
Level 8 Sprout
Solved problems for 256 days in a row
Solved problems for 256 days in a row
1.4K
Level 9 Sprout
Solved problems for 512 days in a row
Solved problems for 512 days in a row
478
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
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
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
GBS Coding Contest 2022
Participated in GBS Coding Contest 2022, or solved 1 or more problems in its open contest
Participated in GBS Coding Contest 2022, or solved 1 or more problems in its open contest
292
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
139K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
96K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
60K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
28K
Professional Problem-solver
Solve 500 problems
Solve 500 problems
5.7K
1-Star Problem-solving Technician
Solve 1,000 problems
Solve 1,000 problems
1.5K