Problems
Arena
Professional Problem-solver
Solve 500 problems
Solve 500 problems
5.5K
Skilled Problem-solver
Solve 200 problems
Solve 200 problems
27K
Apprentice Problem-solver
Solve 100 problems
Solve 100 problems
58K
Beginner Problem-solver
Solve 50 problems
Solve 50 problems
93K
Newbie Problem-solver
Solve 10 problems
Solve 10 problems
135K
SciOI 2022
Participated in SciOI 2022, or solved 1 or more problems in its open contest
Participated in SciOI 2022, or solved 1 or more problems in its open contest
226
Warmth in the Snow (2022)
Solved 1 or more problems in the Invitation of the Winter Forest
Solved 1 or more problems in the Invitation of the Winter Forest
462
2022 IGRUS Newbie Programming Contest
Participated in 2022 IGRUS Newbie Programming Contest, or solved 1 or more problems in its open contest
Participated in 2022 IGRUS Newbie Programming Contest, or solved 1 or more problems in its open contest
292
2022 Chung-Ang University Programming Contest
Participated in 2022 Chung-Ang University Programming Contest, or solved 1 or more problems in its open contest
Participated in 2022 Chung-Ang University Programming Contest, or solved 1 or more problems in its open contest
261
9500-card (2022)
Achieved 9,500 points in the Solved Blackjack Event, 2022
Achieved 9,500 points in the Solved Blackjack Event, 2022
435
2022 Inha University Programming Contest
Participated in 2022 Inha University Programming Contest, or solved 1 or more problems in its open contest
Participated in 2022 Inha University Programming Contest, or solved 1 or more problems in its open contest
291
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
Level 7 Sprout
Solved problems for 128 days in a row
Solved problems for 128 days in a row
2.8K
Level 6 Sprout
Solved problems for 64 days in a row
Solved problems for 64 days in a row
5.7K
Level 5 Sprout
Solved problems for 32 days in a row
Solved problems for 32 days in a row
9.8K
Level 4 Sprout
Solved problems for 16 days in a row
Solved problems for 16 days in a row
17K