Contents

module Grains

open System.Numerics

let square (n:int) = 
    if n <= 0 || n > 64 then 
        Error "Invalid input"
    else
        Ok (2I ** (n - 1) |> uint64)

let total = 
    [1..64] 
    |> List.map square
    |> List.reduce (fun x y -> match x, y with Ok a, Ok b -> Ok (a + b) | _ -> Error "Invalid input")

Version data entries

132 entries across 132 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.179	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.178	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.177	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.176	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.175	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.174	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.173	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.172	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.171	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.170	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.169	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.167	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.166	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.165	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.164	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.163	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.162	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.161	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.160	tracks/fsharp/exercises/grains/Example.fs