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Just listing the necessary conditions makes it optimal. I think there are a lot of problems like that (especially bit problems). I can't give a concrete example of such a problem...

マウスを写すようにする

True

his broadcast is clearly meant for japanese people bro

4 years (2020-03-24 ~)

@@potato167 あなたの年齢は何ですか、何をして暮らしていますか.

22 years old university student

I learned the basics in high school. Since I started competitive programming, I've been learning by reading Editorial and blogs.

This pdf written in Japanese was quite helpful. drive.google.com/file/d/1WC7Y2Ni-8elttUgorfbix9tO1fvYN3g3/view

@@potato167 which website should I practice first ?

@@charanteja1160 It is best to choose a site with easy-to-read explanations. I think the explanations for AtCoder's ABC are carefully written.

Recording could not start due to insufficient computer space... I realized it too late.

@@potato167 so sad

ありがとうございます！

昔に構築したのであまり覚えてません。 たくさん調べて頑張って構築しました。 ごめんなさい

AtCoder c++ practice site (japanese only) atcoder.jp/contests/APG4b

@@potato167 Did you practice at AOJ??

@@charanteja1160 yes But the first place I practiced was on AtCoder. I registered with AOJ in order to solve the problems on the problem set. qiita.com/e869120/items/eb50fdaece12be418faa#2-3-分野別初中級者が解くべき過去問精選-100-問

greasyfork.org/ja/scripts/371225-atcoderresultnotifier/code 他の人が作ったスクリプトです

@@potato167 ありがとう御座います

I participated in many contests, solved many past problems, and read many articles. Past problem sites kenkoooo.com/atcoder/#/table/ dp contests atcoder.jp/contests/dp?lang=en

@@potato167 Thank you . Which one is better codeforces or atcoder??

@@charanteja1160 I think AtCoder is better because there are many editorial articles in Japanese.so, it's best to use the one that has a lot of articles in your native language. problem quality is almost same.