Problems
Arena
Level 10 Sprout
Solved problems for 1,024 days in a row
Solved problems for 1,024 days in a row
122
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
150K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
104K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
66K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
31K
Professional Problem-solver
Solve 500 problems
Solve 500 problems
6.5K
1-Star Problem-solving Technician
Solve 1,000 problems
Solve 1,000 problems
1.7K
2-Star Problem-solving Technician
Solve 2,000 problems
Solve 2,000 problems
380
The 2nd MatKor Cup : 2023 Winter
Participated in the 2nd MatKor Cup, or solved 1 or more problems in its open contest
Participated in the 2nd MatKor Cup, or solved 1 or more problems in its open contest
473
SUAPC 2023w
Participated in SUAPC 2023 Winter, or solved 1 or more problems in its open contest
Participated in SUAPC 2023 Winter, or solved 1 or more problems in its open contest
380
2023 ICPC Sinchon Winter Algorithm Camp Contest
Participated in 2023 ICPC Sinchon Winter Algorithm Camp Contest, or solved 1 or more problems in its open contest
Participated in 2023 ICPC Sinchon Winter Algorithm Camp Contest, or solved 1 or more problems in its open contest
325
The 1st hjroh Cup (2023)
Solved 1 or more problems in the 1st hjroh Cup
Solved 1 or more problems in the 1st hjroh Cup
255
2023 Chung-Ang University CHAC
Participated in 2023 Chung-Ang University CHAC, or achieved a score of over 10 in its open contest
Participated in 2023 Chung-Ang University CHAC, or achieved a score of over 10 in its open contest
341
2022 shake!
Participated in 2022 shake!, or solved 1 or more problems in its open contest
Participated in 2022 shake!, or solved 1 or more problems in its open contest
208
Dress Rehearsal (2023)
Achieved a score of over 41 in the Dress Rehearsal
Achieved a score of over 41 in the Dress Rehearsal
441
A yellow badge with a blue ribbon that seems to fit somewhere (2023)
Solved a problem with ‘41’ in its ID, between 6:00 AM April 1, 2023 KST and 1:00 AM April 3, 2023 KST
Solved a problem with ‘41’ in its ID, between 6:00 AM April 1, 2023 KST and 1:00 AM April 3, 2023 KST
1.2K
2023 UDPC
Participated in the 2023 UDPC, or solved 1 or more problems in its open contest
Participated in the 2023 UDPC, or solved 1 or more problems in its open contest
349
Guardian of Balance - Gold
Of the 8 tags displayed on the profile, achieve a rating of over 800 for 4 or more tags
Of the 8 tags displayed on the profile, achieve a rating of over 800 for 4 or more tags
12K
Master of Balance - Gold
Of the 8 tags displayed on the profile, achieve a rating of over 800 for 6 or more tags
Of the 8 tags displayed on the profile, achieve a rating of over 800 for 6 or more tags
5.1K
Creator of Balance - Gold
Achieve a rating of 800 or higher for all 8 tags displayed on the profile
Achieve a rating of 800 or higher for all 8 tags displayed on the profile
968