Tree Building

Challenge Overview

Refactor a tree building algorithm.

Visit the tree-building exercise on Exercism to read the full instructions and download the exercise files.

Community Solutions

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The following are the top 3 community solutions by stars:

Solution 1 by @Tedford (⭐ 0) — View on Exercism
Solution 2 by @kirchnergo (⭐ 2) — View on Exercism
Solution 3 by @NiklasZinngrebe (⭐ 0) — View on Exercism

Source: Exercism fsharp/tree-building

💡 View Solution

module TreeBuilding

type Record = { RecordId: int; ParentId: int }
type Tree = 
    | Branch of int * Tree list
    | Leaf of int

let recordId t = 
    match t with
    | Branch (id, c) -> id