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-2.2.1.119	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.118	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.117	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.116	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.115	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.114	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.113	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.111	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.110	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.109	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.108	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.107	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.106	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.105	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.104	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.103	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.102	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.101	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.100	tracks/fsharp/exercises/grains/Example.fs
trackler-2.2.1.99	tracks/fsharp/exercises/grains/Example.fs