Couple of years ago I had a good time practicing Go by solving a number of programming challenges on Hackerrank. This time I will try solve functional challenges using F#.
There is the first one:
Your task is to scan two numbers, A and B from STDIN, and print the sum A+B on STDOUT.
It is just a basic challenge to get convenient with solution submision and language basics. The code looks pretty much C#:
open System
[<EntryPoint>]
let main argv =
let a = Console.ReadLine() |> int
let b = int(Console.ReadLine())
printfn "%d" (a+b)
0 // return an integer exit code
Console.ReadLine() |> int and int(Console.ReadLine()) are equivalent forms. a |> b is just b(a).