LeetCode 540. Single Element in a Sorted Array in F#

URL Single Element in a Sorted Array - LeetCode Code https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/problems/0540/main.fsx let singleNonDuplicate (nums: int[]) : int = let rec singleNonDuplicate' (nums: int[]) left right = ...