How to resolve the algorithm Mutual recursion step by step in the Factor programming language
Published on 12 May 2024 09:40 PM
How to resolve the algorithm Mutual recursion step by step in the Factor programming language
Table of Contents
Problem Statement
Two functions are said to be mutually recursive if the first calls the second, and in turn the second calls the first. Write two mutually recursive functions that compute members of the Hofstadter Female and Male sequences defined as:
(If a language does not allow for a solution using mutually recursive functions then state this rather than give a solution by other means).
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Mutual recursion step by step in the Factor programming language
Source code in the factor programming language
DEFER: F
: M ( n -- n' ) dup 0 = [ dup 1 - M F - ] unless ;
: F ( n -- n' ) dup 0 = [ drop 1 ] [ dup 1 - F M - ] if ;
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