This is CodeNCode.
here is the video editorial
B. Codeforces Subsequence
C. Even Picture
you can find more editorials and courses(like digit dp and Mo’s algorithm on tree) on my channel.
This is CodeNCode.
here is the video editorial
B. Codeforces Subsequence
C. Even Picture
you can find more editorials and courses(like digit dp and Mo’s algorithm on tree) on my channel.