Problems
Arena
2023 Sogang University Freshman Cup
Participated in 2023 Sogang University Freshman Cup, or solved 2 or more problems in its open contest
Participated in 2023 Sogang University Freshman Cup, or solved 2 or more problems in its open contest
363
3 Solves
Celebrated the 3nd anniversary of solved.ac
Celebrated the 3nd anniversary of solved.ac
12K
Codemaster 2023
Participated in the Codemaster 2023 by Songdo Highschool, or solved 1 or more problems in its open contest
Participated in the Codemaster 2023 by Songdo Highschool, or solved 1 or more problems in its open contest
430
The 2nd Chocolate Cup (2022)
Solved 1 or more problems in the 2nd Chocolate Cup
Solved 1 or more problems in the 2nd Chocolate Cup
413
2023 Daegu Software Highschool Programming Contest
Participated in the 2023 Daegu Software Highschool Programming Contest, or solved 1 or more problems in its open contest
Participated in the 2023 Daegu Software Highschool Programming Contest, or solved 1 or more problems in its open contest
226
You Win!
Participate as a rated contestant in the Arena and increase your rating
Participate as a rated contestant in the Arena and increase your rating
3.1K
On a Roll
Participate as a rated contestant in the Arena and increase your rating 3 times in a row
Participate as a rated contestant in the Arena and increase your rating 3 times in a row
1.1K
Unstoppable
Participate as a rated contestant in the Arena and increase your rating 5 times in a row
Participate as a rated contestant in the Arena and increase your rating 5 times in a row
527
Hopefully This Badge Will Help You Keep Calm
Participate as a rated contestant in the Arena and decrease your rating
Participate as a rated contestant in the Arena and decrease your rating
367
Arena: Top 50
Participate as a rated contestant in the Arena and achieve a rank of top 50 or greater
Participate as a rated contestant in the Arena and achieve a rank of top 50 or greater
574
Arena: Top 100
Participate as a rated contestant in the Arena and achieve a rank of top 100 or greater
Participate as a rated contestant in the Arena and achieve a rank of top 100 or greater
972
Speedy
Participate as a rated contestant in the Arena and get full score for a problem within 5 minutes of the start of the competition
Participate as a rated contestant in the Arena and get full score for a problem within 5 minutes of the start of the competition
821
Rapid
Participate as a rated contestant in the Arena and get full score for a problem within 3 minutes of the start of the competition
Participate as a rated contestant in the Arena and get full score for a problem within 3 minutes of the start of the competition
586
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
Participate as a rated contestant in the Arena and get full score for half or more of the problems in the contest
510
Arena: Quarter Solves
Participate as a rated contestant in the Arena and get full score for quarter or more of the problems in the contest
Participate as a rated contestant in the Arena and get full score for quarter or more of the problems in the contest
1.3K
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
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
Record of the Stars: Chapter 1
Participate as a rated contestant in the Arena
Participate as a rated contestant in the Arena
3.2K
Record of the Stars: Chapter 2
Participate as a rated contestant for 5 times in the Arena
Participate as a rated contestant for 5 times in the Arena
607
Record of the Stars: Chapter 3
Participate as a rated contestant for 10 times in the Arena
Participate as a rated contestant for 10 times in the Arena
163
2023 KSA Automata Summer Contest
2023 KSA Automata Summer Contest에 출전해 100점 이상 달성
2023 KSA Automata Summer Contest에 출전해 100점 이상 달성
398