16silver (2022) Solved 1 or more problems in the 1st Silver Cup
125
The 2nd Korea Aerospace University Programming Contest Participated in the 2nd Korea Aerospace University Programming Contest, or solved 1 or more problems in its open contest
164
IamCoder 2021 Year-end Contest Participated in IamCoder 2021 Year-end Contest, or solved 1 or more problems in its open contest
170
2024 UDPC 2024 UDPC에 출전, 혹은 Open Contest에 출전해 1문제 이상 해결
207
Spend 2023 with BOJ Solved 1 or more problems in Hello, BOJ 2023!
290
2022 Inha University Programming Contest Participated in 2022 Inha University Programming Contest, or solved 1 or more problems in its open contest
291
SciOI 2023 SciOI 2023에 출전, 혹은 Open Contest에 출전해 100점 이상 획득
332
2022 Sogang University Freshman Cup Participated in 2022 Sogang University Freshman Cup, or solved 2 or more problems in its open contest
335
2023 UDPC Participated in the 2023 UDPC, or solved 1 or more problems in its open contest
349
2023 Sogang University Freshman Cup Participated in 2023 Sogang University Freshman Cup, or solved 2 or more problems in its open contest
363
Sinchon Station (2022) Participated in 2022 ICPC Sinchon Summer Algorithm Camp Contest, or solved 1 or more problems in its open contest
388
Not a Robot Met a developer of solved.ac at an event hosted or sponsored by solved.ac with 20+ participants
459
Warmth in the Snow (2022) Solved 1 or more problems in the Invitation of the Winter Forest
462
Arena: Half Solves Participate as a rated contestant in the Arena and get full score for half or more of the problems in the contest
510
The 1st AGCU Cup Solved 2 or more problems in the 1st AGCU Cup