What should I do if I want to swap my handle with my friend's?

Before my submission, I had thought of this case.

Then, I checked if there were "0" in my output, and opened the input file, searching for " 1".

There were no such cases.

Therefore, I ignore this situation, and submit the "wrong" code.

Thank you for not guessing one is Ke's boy friend.

In China, It's called the lowbit.

...

And then, Div 2 gets 3x3000pts problems, which will frighten off the news to Codeforces. ~

(Maybe they need to have supper, but problem setter don't need to sleep early.)

Div 2 (especially Chinese Round Div 2) is more suitable for you.

XD

MinakoKojima and I often go to bed late (2:00 AM ?) and get up late (10:00 AM ?).

Don't worry.

The one, who don't know ***, won't pass the pretest.

If you use your true name, I can also register the same account as you.

Why don't you think that is a common name? (Actually, it's a rare last name in China.)

It's a typical Chinese round.

How to download all of my submissions (or just Accepted)?

A funny thing . Team's name can be a space. :)