solved.ac
Problems
Contribute
Arena
Rankings
Sign in
Problems
Arena
lky7674
Ruby V
2753
47 until Ruby IV
7dc9ec19-4531-4dba-ba27-0b45414615d7
Pro User
4,310
Solved
3,947
Contributions
22
Reverse rivals
Overview
History
Solved
Contributions
Badges
Backgrounds
All
Achievement
Arena
Season
Event
Contest
Sort
Date Added
# Unlocked Users
Tier
1-Star Problem-solving Technician
Solve 1,000 problems
1.8K
Professional Problem-solver
Solve 500 problems
7K
Skilled Problem-solver
Solve 200 problems
33K
Apprentice Problem-solver
Solve 100 problems
69K
Beginner Problem-solver
Solve 50 problems
110K
Newbie Problem-solver
Solve 10 problems
157K
Level 10 Sprout
Solved problems for 1,024 days in a row
168
SUAPC 2022s
Participated in SUAPC 2022 Summer, or solved 1 or more problems in its open contest
272
Sinchon Station (2022)
Participated in 2022 ICPC Sinchon Summer Algorithm Camp Contest, or solved 1 or more problems in its open contest
388
Top Contributor, Season 2021
Top 100 contributor by contributions count in the 2021 season
100
UCPC 2022
Participated in UCPC 2022, or its open contest
991
2 Solves
Celebrated the 2nd anniversary of solved.ac
9.7K
2022 Sogang University Freshman Cup
Participated in 2022 Sogang University Freshman Cup, or solved 2 or more problems in its open contest
335
★★Twenty-two Stars★★ (2022)
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
2.1K
SUAPC 2022w
Participated in SUAPC 2022 Winter
190
Sogang Programming Contest 2021
Participated in Sogang Programming Competition 2021
46
Level 9 Sprout
Solved problems for 512 days in a row
680
Level 8 Sprout
Solved problems for 256 days in a row
1.8K
Level 7 Sprout
Solved problems for 128 days in a row
3.6K
1
2
3
4
5