Problems
Arena
SUAPC 2020
Condition Participated in SUAPC 202081
SUAPC 2021w
Condition Participated in SUAPC 2021 Winter82
Season 2020 — Diamond I
Condition Reached Diamond I in Season 202035
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
30 Days of Sincerity
Condition Achieve max streak of 30 days10K
ICPC World Finals Moscow
Condition Participated in ICPC World Finals Moscow Cheering Event601
100 Days of Consistency
Condition Achieve max streak of 100 days3.6K
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
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
Sogang Programming Contest 2021
Be as proud of Sogang as Sogang is proud of you.
Condition Participated in Sogang Programming Contest 202146
All Solve! — Bronze V
Condition Solved every Bronze V problem after November 30th, 20212.2K
All Solve! — Bronze IV
Condition Solved every Bronze IV problem after November 30th, 2021501
All Solve! — Bronze III
Condition Solved every Bronze III problem after November 30th, 2021102
On the Way to Work
Wanna take the bus to the otherworldly?
Condition Participated in Sogang Programming Contest 2021, or its Open Contest132
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 shop2.5K
God's Queries on This Wonderful Arrays!
Seeing that the value written in the Nth sequence in front of your house changes every day, you became angry and decided to sue Hanbyeol.
Condition Solve 1 or more problems which has '수열' or '쿼리' in its Korean version of the title, at some point after March 22, 20225.3K
Green Matrix Grid: Dark Mode
More epic green matrix grid
Condition (Hidden)8.3K
Icons: Dark Mode
Icons in solved.ac, now in dark mode.
Condition (Hidden)4.2K
Magician of the Library
Celebrated the 2nd anniversary of solved.ac
Condition Solve 1 or more previously unsolved problems between 6:00 AM on May 30, 2022 and 6:00 AM on June 6, 20229.7K
Season 2021 — Diamond I
Condition Reached Diamond I in Season 202157