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-2.2.1.78	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.77	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.76	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.75	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.74	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.73	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.72	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.71	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.70	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.69	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.68	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.67	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.66	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.65	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.64	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.63	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.62	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.61	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.60	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.59	tracks/fsharp/exercises/grains/Example.fs