あんたはここでふゆと死ぬのよ - ニコニコ動画
https://www.nicovideo.jp/watch/sm38187486?ref=search_tag_video&playlist=eyJ0eXBlIjoic2VhcmNoIiwiY29udGV4dCI6eyJ0YWciOiJcdTRmNTVcdTMwNmFcdTMwOTNcdTMwNTlcdTMwNGJcdTMwNmRcdTMwNTNcdTMwOGMiLCJzb3J0S2V5Ijoidmlld0NvdW50Iiwic29ydE9yZGVyIjoiZGVzYyIsInBhZ2UiOjEsInBhZ2VTaXplIjozMn19&ss_pos=12&ss_id=98302857-31a4-4259-8393-8c46f805a29c

https://twitter.com/antique_mineral/status/1363041958457868289

nesosuke - Twitch
https://www.twitch.tv/nesosuke

https://twitter.com/kikikoko9o/status/1363398111012429830

Base n [SOMPO HD プログラミングコンテスト2021(AtCoder Beginner Contest 192) D] - はまやんはまやんはまやん
https://blog.hamayanhamayan.com/entry/2021/02/20/233715

前提知識
二分探索

https://socialclub.rockstargames.com/member/neotechi/