{"provider_url":"https://hatena.blog","author_name":"awacio","type":"rich","description":"\u3010\u554f\u984c\u3011 reverse\uff08\u554f\u984c 2.18\uff09\u306e\u3001\u554f\u984c 2.38 \u306e fold-right \u3068 fold-left \u3092\u4f7f\u3063\u305f\u3001\u6b21\u306e\u5b9a\u7fa9\u3092\u5b8c\u6210\u305b\u3088\u3002 (define (reverse sequence) (fold-right (lambda (x y) <??>) '() sequence)) (define (reverse sequence) (fold-left (lambda (x y) <??>) '() sequence)) \u3010\u89e3\u7b54\u3011 fold-right \u306e\u65b9\u304b\u3089\u3044\u3053\u304b\u3002 (define (reverse sequence) (fold-right (lambda (x y) (ap\u2026","height":"190","width":"100%","published":"2010-05-15 20:48:45","author_url":"https://blog.hatena.ne.jp/awacio/","blog_url":"https://awacio.hatenadiary.org/","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fawacio.hatenadiary.org%2Fentry%2F20100515%2F1273924125\" title=\"SICP \u554f\u984c 2.39\uff08fold-right \u3068 fold-left \u3092\u4f7f\u3063\u3066 reverse \u3092\u5b9f\u88c5\uff09 - awacio.log\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","categories":["Scheme","SICP"],"url":"https://awacio.hatenadiary.org/entry/20100515/1273924125","title":"SICP \u554f\u984c 2.39\uff08fold-right \u3068 fold-left \u3092\u4f7f\u3063\u3066 reverse \u3092\u5b9f\u88c5\uff09","blog_title":"awacio.log","image_url":null}