Problems
Arena
Beta Contributor
Contributed once or more between July 13, 2019 and June 4, 2020
Contributed once or more between July 13, 2019 and June 4, 2020
442
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
Semi-Game Cup 3 (2022)
Solved 1 or more problems in Semi-Game Cup 3
Solved 1 or more problems in Semi-Game Cup 3
170
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
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
Professional Problem-solver
Solve 500 problems
Solve 500 problems
6.5K
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
Spend 2023 with BOJ
Solved 1 or more problems in Hello, BOJ 2023!
Solved 1 or more problems in Hello, BOJ 2023!
290
Guardian of Balance - Bronze
Of the 8 tags displayed on the profile, achieve a rating of over 30 for 4 or more tags
Of the 8 tags displayed on the profile, achieve a rating of over 30 for 4 or more tags
104K
Master of Balance - Bronze
Of the 8 tags displayed on the profile, achieve a rating of over 30 for 6 or more tags
Of the 8 tags displayed on the profile, achieve a rating of over 30 for 6 or more tags
78K
Creator of Balance - Bronze
Achieve a rating of 30 or higher for all 8 tags displayed on the profile
Achieve a rating of 30 or higher for all 8 tags displayed on the profile
33K
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
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
5K
C
C90, C90 (Clang), C99, C99 (Clang), C11, C11 (Clang), C2x, C2x (Clang) 중 하나의 언어로 아무 문제나 해결
C90, C90 (Clang), C99, C99 (Clang), C11, C11 (Clang), C2x, C2x (Clang) 중 하나의 언어로 아무 문제나 해결
19K