Sinchon Station (2022) Participated in 2022 ICPC Sinchon Summer Algorithm Camp Contest, or solved 1 or more problems in its open contest
388
The 2nd MatKor Cup : 2023 Winter Participated in the 2nd MatKor Cup, or solved 1 or more problems in its open contest
473
Boardgame Cup (2023) Solved 1 or more problems in Boardgame Cup
584
Spent 2022 with BOJ Solved 1 or more problems in Good Bye, BOJ 2022!
606
Christmas Gift (2022) Earn at least 5 gifts from the Make a Tree event, 2022
725
Anime Cup (2023) Solved 1 or more problems in Anime Cup Season 1 or 2
766
Guardian of Balance - Platinum Of the 8 tags displayed on the profile, achieve a rating of over 1600 for 4 or more tags
910
On a Roll Participate as a rated contestant in the Arena and increase your rating 3 times in a row
1.1K
A yellow badge with a blue ribbon that seems to fit somewhere (2023) Solved a problem with ‘41’ in its ID, between 6:00 AM April 1, 2023 KST and 1:00 AM April 3, 2023 KST
1.2K
★★Seventeen Stars★★ (2022) Achieved 17-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
2.1K
You Win! 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
3.2K
Master of Balance - Gold Of the 8 tags displayed on the profile, achieve a rating of over 800 for 6 or more tags
4.1K
Creator of Balance - Silver Achieve a rating of 200 or higher for all 8 tags displayed on the profile
4.3K
1 Solve Celebrated the 1st anniversary of solved.ac
5K
Professional Problem-solver Solve 500 problems
5.4K
Level 5 Sprout Solved problems for 32 days in a row
9.6K
2 Solves Celebrated the 2nd anniversary of solved.ac
9.7K
Guardian of Balance - Gold Of the 8 tags displayed on the profile, achieve a rating of over 800 for 4 or more tags