tanakaBox https://blog.hatena.ne.jp/tanakaBox/ ボクノス https://boxnos.hatenablog.com/ Scheme どうも二進木のリスト表示がわかりにくいので、Graphviz使うことに。 define (graph tree) (system (format "echo 'digraph G { ~a ~a }' | dot -Tpng | display" (entry tree) ; 一個だけだと表示が出来ないのでとりあえず最初のを挿入しとく (letrec ((make-node (lambda (current next) (if (null? next) "" (format "~a->~a " (entry current) (entry next))))) (iter (lambda (tr… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fboxnos.hatenablog.com%2Fentry%2F20071217%2F1197897915" title=" SICPを読む(76) 二進木をGraphvizで表示 - ボクノス" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/t/tanakaBox/20071217/20071217220722.png Hatena Blog https://hatena.blog 2007-12-17 22:25:15 rich https://boxnos.hatenablog.com/entry/20071217/1197897915 1.0 100%