LeetCode 1232. Check If It Is a Straight Line in F#

URL Check If It Is a Straight Line - LeetCode Code https://github.com/syohex/dotnet-study/tree/master/fsharp/leetcode/problems/1232/main.fsx let checkStraightLine (coordinates: (int * int) list) : bool = let diff (x1, y1) (x2, y2) = x2 - x1, y2 -...