Fiddle While Romes Burns Participate as a unrated contestant in the Arena and make a submission at least once
51
21st National Assembly Election (2020) Solved the 21st National Assembly Election problem (#18891) by April 21, 2020
56
Did You Even Read The Statement??? Participate as a rated contestant in the Arena and get full score for a problem within 1 minute of the start of the competition
68
Summer Postcard Decoration: Top 100 (2022) Achieved a rank of top 100 in the Summer Postcard Decoration event, 2022
98
Top Contributor, Season 2021 Top 100 contributor by contributions count in the 2021 season
100
EtvycAuRLZpb6hhe86x0 Solved problem A or similar within the competition time of EtvycAuRLZpb6hhe86x0
102
Semi-Game Cup 2 (2021) Solved 1 or more problems in Semi-Game Cup 2
108
Orange (2021) Solved 1 or more problems in the Orange Cup
115
AI Network Scholarium I - 1 Solve Solved 1 or more problems in AI Network Scholarium I
118
제 1회 DGUPC 제 1회 DGUPC에 출전, 혹은 Open Contest에 출전해 한 문제 이상 해결
131
Arena: Top 10 Participate as a rated contestant in the Arena and achieve a rank of top 10 or greater
151
IamCoder 2021 Year-end Contest Participated in IamCoder 2021 Year-end Contest, or solved 1 or more problems in its open contest
170
Semi-Game Cup 3 (2022) Solved 1 or more problems in Semi-Game Cup 3
170
Creator of the Stars: Chapter 1 Participate as a jury, a tester, or a staff in the Arena
171
SASA Programming Contest 2021 Participated in SASA Programming Contest 2021, or solved 1 or more problems in its open contest
172
Arena: Quarter Solves × 5 Participate as a rated contestant for 5 times in the Arena and get full score for quarter or more of the problems in the contest
189
The 1st Chocolate Cup (2022) Solved 1 or more problems in the 1st Chocolate Cup
191
알록달록 해커 호랑이 (2023) 제3회 고려대학교 MatKor Cup : 2023 Summer에 출전해 A번을 제외한 문제에 1회 이상 제출, 혹은 Open Contest Phase 1와 Phase 2 모두에 출전
193
첫 번째 나들이 (2023) 첫 번째 나들이에 출전해 1문제 이상 해결
210
SciOI 2022 Participated in SciOI 2022, or solved 1 or more problems in its open contest