Problems
Arena
Opening of the Year 2022
Hello, 2022!
Condition Solved 1 or more problems in Hello, BOJ 2022!368
Good Bye, BOJ 2021!
Good Bye, 2021!
Condition Solved 1 or more problems in Good Bye, BOJ 2021!646
Sejong Lake Park
The largest artificial lake park in the Republic of Korea.
Condition Participated in SASA Programming Contest 2021, or solved 1 or more problems in its Open Contest173
Merry Christmas 2021
Solved a problem in Christmas or Christmas Eve 2021
Condition Solve 1 or more previously unsolved problems between 6:00 AM on December 24, 2021 and 6:00 AM on December 26, 20213.5K
Stars in the Evening Sky
She who has a star in her heart never gets lost in the dark
Condition Bought the background at the coin shop2.4K
All Solve! — Silver V
Condition Solved every Silver V problem after November 30th, 202111
All Solve! — Bronze I
Condition Solved every Bronze I problem after November 30th, 202119
All Solve! — Bronze II
Condition Solved every Bronze II problem after November 30th, 202131
All Solve! — Bronze III
Condition Solved every Bronze III problem after November 30th, 2021100
All Solve! — Bronze IV
Condition Solved every Bronze IV problem after November 30th, 2021500
All Solve! — Bronze V
Condition Solved every Bronze V problem after November 30th, 20212.1K
Korea University Collegiate Programming Contest 2021
Condition Participated in Korea University Collegiate Programming Contest 202142
Pocky Day 2021
Solved a problem in Pocky day 2021
Condition Solved previously unsolved problem at between November 11th, 2021 06:00 and November 12th, 2021 06:00 (KST)3.3K
TRICK|TREAT 2021
Solved a problem in Halloween 2021
Condition Solved previously unsolved problem at between October 31st, 2021 06:00 and November 1st, 2021 06:00 (KST)2.6K
100 Days of Consistency
Condition Achieve max streak of 100 days3.6K
ICPC World Finals Moscow
Condition Participated in ICPC World Finals Moscow Cheering Event601
30 Days of Sincerity
Condition Achieve max streak of 30 days10K
UCPC 2021
Condition Participated in UCPC 2021426
Standard Library
Celebrated the 1st anniversary of solved.ac
Condition Solved previously unsolved problem at between May 31st, 2021 00:00 and June 8th, 2021 00:00 (KST)5K
EtvycAuRLZpb6hhe86x0
Condition Participated in EtvycAuRLZpb6hhe86x0102