How to resolve the algorithm Permutations step by step in the LFE programming language

Published on 12 May 2024 09:40 PM
#Lfe

How to resolve the algorithm Permutations step by step in the LFE programming language

Table of Contents

Problem Statement

Write a program that generates all   permutations   of   n   different objects.   (Practically numerals!)

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Permutations step by step in the LFE programming language

Source code in the lfe programming language

(defun permute
  (('())
    '(()))
  ((l)
    (lc ((<- x l)
         (<- y (permute (-- l `(,x)))))
        (cons x y))))


> (permute '(1 2 3))
((1 2 3) (1 3 2) (2 1 3) (2 3 1) (3 1 2) (3 2 1))

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