rating update when??

USACO GUIDE I think

If I hadn't read the title, I would have upvoted =))

I think everyone just practice, practice and then get good, they don't follow any roadmap.

This is so weird. I couldn't be able to solve any problems of the past 3 contest =(

I thought if you presented, no matter have you submit or no, It will affect your rating?

Great extension, thanks.

maybe they're german and they downvoted because of my avatar .-.

if input of a problem contains number <= 10^18, u should use ios::sync_with_stdio(false); cin.tie(0);. It will be much faster

Yayy I finally have a chance to become a pupil, also I want to ask if it's normal for someone to reach pupil after 18 contests?

I think it's just like backtracking because it try all the number <= R. Where do I misunderstanding?

wdym

pls not bitwise again