How to resolve the algorithm Singly-linked list/Element insertion step by step in the Racket programming language

Published on 12 May 2024 09:40 PM

How to resolve the algorithm Singly-linked list/Element insertion step by step in the Racket programming language

Table of Contents

Problem Statement

Using this method, insert an element C into a list comprised of elements A->B, following element A.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Singly-linked list/Element insertion step by step in the Racket programming language

Source code in the racket programming language

#lang racket

;; insert b after a in a mutable list (assumes that a is in the input list)
(define (insert-after! list a b)
  (if (equal? (mcar list) a)
    (set-mcdr! list (mcons b (mcdr list)))
    (insert-after! (mcdr list) a b)))

(define l (mcons 1 (mcons 2 (mcons 3 '()))))
(insert-after! l 2 2.5)
l ; -> (mcons 1 (mcons 2 (mcons 2.5 (mcons 3))))


  

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