Toggle navigation
Bulletin
Problems
Submissions
Contests
Discuss
About
Rank
Sign in
Sign up
×
Close
TIOJ April Fools Day Contest 2024 題解上線啦！
題解點
這裡
、題目在
這裡
～
Problems
#2020-CKsim-1st
Search Problems
Search
#
Name
Show solution-related tags
TopCoder
AC Ratio (user)
AC (submission)