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
SASA Programming Contest 2021
Participated in SASA Programming Contest 2021, or solved 1 or more problems in its open contest
Participated in SASA Programming Contest 2021, or solved 1 or more problems in its open contest
172
Spent 2021 with BOJ
Solved 1 or more problems in Good Bye, BOJ 2021!
Solved 1 or more problems in Good Bye, BOJ 2021!
644
★★Seventeen Stars★★ (2022)
Achieved 17-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
Achieved 17-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
2.1K
★★Twenty-two Stars★★ (2022)
Achieved 22-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
Achieved 22-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
1K
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
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
105K
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
You Win!
Participate as a rated contestant in the Arena and increase your rating
Participate as a rated contestant in the Arena and increase your rating
3.1K
Record of the Stars: Chapter 1
Participate as a rated contestant in the Arena
Participate as a rated contestant in the Arena
3.2K
2024년을 BOJ와 함께할
Hello, BOJ 2024! 혹은 Open Contest에 출전
Hello, BOJ 2024! 혹은 Open Contest에 출전
292
C++
C++98, C++98 (Clang), C++11, C++11 (Clang), C++14, C++14 (Clang), C++17, C++17 (Clang), C++20, C++20 (Clang) 중 하나의 언어로 아무 문제나 해결
C++98, C++98 (Clang), C++11, C++11 (Clang), C++14, C++14 (Clang), C++17, C++17 (Clang), C++20, C++20 (Clang) 중 하나의 언어로 아무 문제나 해결
55K
Java
Java 8, Java 8 (OpenJDK), Java 11, Java 15 중 하나의 언어로 아무 문제나 해결
Java 8, Java 8 (OpenJDK), Java 11, Java 15 중 하나의 언어로 아무 문제나 해결
38K