LeetCode 543. Diameter of Binary Tree in F#

URL https://leetcode.com/problems/diameter-of-binary-tree/description/?envType=daily-question&envId=2024-02-27 Code https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/challenge/202402/diameter_of_binary_tree/main.fsx open System type...