{"description":"\u30ad\u30e5\u30fc\u306e\u5b9f\u88c5 (define (front-ptr queue) (car queue)) (define (rear-ptr queue) (cdr queue)) (define (set-front-ptr! queue item) (set-car! queue item)) (define (set-rear-ptr! queue item) (set-cdr! queue item)) (define (empty-queue? queue) (null? (front-ptr queue))) (define (make-queue) (cons '() '())) (defin\u2026","published":"2018-01-22 18:05:50","version":"1.0","author_name":"cocodrips","title":"3.3.2 \u30ad\u30e5\u30fc\u306e\u8868\u73fe","type":"rich","url":"https://sicp.hatenablog.com/entry/2018/01/22/180550","height":"190","width":"100%","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/cocodrips/","provider_url":"https://hatena.blog","image_url":null,"categories":[],"blog_url":"https://sicp.hatenablog.com/","blog_title":"\u6f14\u7fd2\u554f\u984c\u3092\u3084\u308b\u3060\u3051\u306e\u3076\u308d\u3050","html":""}