LeetCode 2221. Find Triangular Sum of an Array in F#

URL Find Triangular Sum of an Array - LeetCode Code dotnet-study/fsharp/leetcode/challenge/202509/find_triangular_sum_of_an_array/main.fsx at master · syohex/dotnet-study let triangleSum (nums: int list) : int = let rec triangleSum' nums = ...