solved.ac
Problems
Contribute
Arena
Rankings
Sign in
Problems
Arena
unused
Ruby V
2713
87 until Ruby IV
2,307
Solved
2
Reverse rivals
Overview
History
Solved
Contributions
Badges
Backgrounds
All
Achievement
Arena
Season
Event
Contest
Sort
Date Added
# Unlocked Users
Tier
21st National Assembly Election (2020)
Solved the 21st National Assembly Election problem (#18891) by April 21, 2020
56
Level 1 Sprout
Solved problems for 2 days in a row
107K
Level 2 Sprout
Solved problems for 4 days in a row
67K
Spent 2021 with BOJ
Solved 1 or more problems in Good Bye, BOJ 2021!
644
Level 3 Sprout
Solved problems for 8 days in a row
31K
Newbie Problem-solver
Solve 10 problems
133K
Beginner Problem-solver
Solve 50 problems
91K
Guardian of Balance - Bronze
Of the 8 tags displayed on the profile, achieve a rating of over 30 for 4 or more tags
91K
Guardian of Balance - Silver
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 4 or more tags
47K
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
17K
Level 4 Sprout
Solved problems for 16 days in a row
16K
Apprentice Problem-solver
Solve 100 problems
57K
Skilled Problem-solver
Solve 200 problems
26K
Professional Problem-solver
Solve 500 problems
5.4K
Master of Balance - Bronze
Of the 8 tags displayed on the profile, achieve a rating of over 30 for 6 or more tags
68K
Master of Balance - Silver
Of the 8 tags displayed on the profile, achieve a rating of over 200 for 6 or more tags
28K
Guardian of Balance - Gold
Of the 8 tags displayed on the profile, achieve a rating of over 800 for 4 or more tags
9.9K
Guardian of Balance - Platinum
Of the 8 tags displayed on the profile, achieve a rating of over 1600 for 4 or more tags
907
1-Star Problem-solving Technician
Solve 1,000 problems
1.4K
2-Star Problem-solving Technician
Solve 2,000 problems
308
1
2