Problems
Arena
Professional Problem-solver
Solve 500 problems
Solve 500 problems
6.7K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
32K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
67K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
107K
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
153K
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
Sogang Programming Contest 2022
Participated in Sogang Programming Competition 2022, or solved 1 or more problems in its open contest
Participated in Sogang Programming Competition 2022, or solved 1 or more problems in its open contest
292
2 Solves
Celebrated the 2nd anniversary of solved.ac
Celebrated the 2nd anniversary of solved.ac
9.7K
★★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
★★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
Hello, world! (2022)
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
747
Binary Game 2 (2022)
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
747
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
Level 3 Sprout
Solved problems for 8 days in a row
Solved problems for 8 days in a row
37K
Level 2 Sprout
Solved problems for 4 days in a row
Solved problems for 4 days in a row
80K
Level 1 Sprout
Solved problems for 2 days in a row
Solved problems for 2 days in a row
126K
EtvycAuRLZpb6hhe86x0
Solved problem A or similar within the competition time of EtvycAuRLZpb6hhe86x0
Solved problem A or similar within the competition time of EtvycAuRLZpb6hhe86x0
102
2020 with BOJ
Solved problem A within the competition time of Good Bye, BOJ 2020!
Solved problem A within the competition time of Good Bye, BOJ 2020!
337