How to resolve the algorithm Flatten a list step by step in the Standard ML programming language

Published on 12 May 2024 09:40 PM

How to resolve the algorithm Flatten a list step by step in the Standard ML programming language

Table of Contents

Problem Statement

Write a function to flatten the nesting in an arbitrary list of values. Your program should work on the equivalent of this list: Where the correct result would be the list:

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Flatten a list step by step in the Standard ML programming language

Source code in the standard programming language

datatype 'a nestedList =
	  L of 'a			(* leaf *)
	| N of 'a nestedList list	(* node *)

fun flatten (L  x) = [x]
  | flatten (N xs) = List.concat (map flatten xs)

  

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