Problems
Arena
Level 1 Sprout
Solved problems for 2 days in a row
Solved problems for 2 days in a row
123K
Level 2 Sprout
Solved problems for 4 days in a row
Solved problems for 4 days in a row
78K
Level 3 Sprout
Solved problems for 8 days in a row
Solved problems for 8 days in a row
36K
Level 4 Sprout
Solved problems for 16 days in a row
Solved problems for 16 days in a row
19K
Level 5 Sprout
Solved problems for 32 days in a row
Solved problems for 32 days in a row
11K
Level 6 Sprout
Solved problems for 64 days in a row
Solved problems for 64 days in a row
6.6K
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
149K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
104K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
65K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
31K
Boardgame Cup (2023)
Solved 1 or more problems in Boardgame Cup
Solved 1 or more problems in Boardgame Cup
584
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
2023 KSA Automata Winter Contest
Achieved a score of over 100 in the 2023 KSA Automata Winter Contest
Achieved a score of over 100 in the 2023 KSA Automata Winter Contest
362
Anime Cup (2023)
Solved 1 or more problems in Anime Cup Season 1 or 2
Solved 1 or more problems in Anime Cup Season 1 or 2
766
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
Guardian of Balance - Silver
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 4 or more tags
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 4 or more tags
54K
Master of Balance - Silver
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 6 or more tags
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 6 or more tags
33K
Creator of Balance - Silver
Achieve a rating of 200 or higher for all 8 tags displayed on the profile
Achieve a rating of 200 or higher for all 8 tags displayed on the profile
5.1K