hamayanhamayan https://blog.hatena.ne.jp/hamayanhamayan/ はまやんはまやんはまやん https://blog.hamayanhamayan.com/ 競技プログラミング http://codeforces.com/contest/896/problem/Af[0] = What are you doing at the end of the world? Are you busy? Will you save us? f[i] = What are you doing while sending "f[i - 1]"? Are you busy? Will you send "f[i - 1]"? の漸化式で表現される文字列がある。Q個の以下のクエリの結果を繋げた文字列を答えよ。 f[n]のk番目の文字を答える（kが文字長を超えている場合は'.'と答える） 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.hamayanhamayan.com%2Fentry%2F2017%2F12%2F03%2F013014" title="Nephren gives a riddle [Codeforces Round #449 A] - はまやんはまやんはまやん" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2017-12-03 01:30:14 rich https://blog.hamayanhamayan.com/entry/2017/12/03/013014 1.0 100%