LeetCode 1679. Max Number of K-Sum Pairs in F#

URL https://leetcode.com/problems/max-number-of-k-sum-pairs/ Code https://github.com/syohex/dotnet-study/blob/master/fsharp/leetcode/problems/1679/main.fsx let maxOperations (nums: int list) (k: int) : int = let rec maxOperations' nums k m ret = ...