Please use F#: Start by creating a text file on your system that contains integers, one per line. For example, create data.txt with the following five values: 15 8 25 17 12 Your program must read from the data.txt file and not operate only on these hard coded values. Your exercise is to write a program that inputs the name of a file, then outputs the contents of the file (as a list of integers), the length, the sum, and the average (as a double). For the file above, heres how the program should behave:

Heres the main program, your job is to write the functions length, sum, and average:

[]

let main argv =

printf "filename> "

let filename = System.Console.ReadLine()

let data_array = System.IO.File.ReadAllLines(filename)

let data_list = Array.toList data_array

//

// convert strings to integers:

//

let values = List.map (fun s -> int s) data_list

printfn "%A" values

//

let len = length values

printfn "%A" len

//

let total = sum values

printfn "%A" total

//

let avg = average values Page 5 of 5

printfn "%A" avg

//

0

0

Write length, sum and average recursively; define above main. Note that avg should return a double value, there is no default casting up from integers to doubles so you will need to construct a double from the integer values.

Time Elapsed 00:00:03.08 (base) Yazhinis-MacBook-Pro: program yazhinipriyadharshini$ dotnet build Microsoft (R) Build Engine version 16.4.0+e901037fe for .NET Core Copyright (c) Microsoft Corporation. All rights reserved. Restore completed in 24.89 ms for /Users/yazhinipriyadharshini/Desktop/program/program.fsproj. program -> /Users/yazhinipriyadharshini/Desktop/program/bin/Debugetcoreapp3.1/program.dll Build succeeded. Warning(s) Error(s) n Time Elapsed 00:00:02.90 (base) Yazhinis-MacBook-Pro:program yazhinipriyadharshini$ dotnet run filename> data.txt [15; 8; 25; 17; 12] 77 15.4 (base) Yazhinis-MacBook-Pro:program yazhinipriyadharshini$ Time Elapsed 00:00:03.08 (base) Yazhinis-MacBook-Pro: program yazhinipriyadharshini$ dotnet build Microsoft (R) Build Engine version 16.4.0+e901037fe for .NET Core Copyright (c) Microsoft Corporation. All rights reserved. Restore completed in 24.89 ms for /Users/yazhinipriyadharshini/Desktop/program/program.fsproj. program -> /Users/yazhinipriyadharshini/Desktop/program/bin/Debugetcoreapp3.1/program.dll Build succeeded. Warning(s) Error(s) n Time Elapsed 00:00:02.90 (base) Yazhinis-MacBook-Pro:program yazhinipriyadharshini$ dotnet run filename> data.txt [15; 8; 25; 17; 12] 77 15.4 (base) Yazhinis-MacBook-Pro:program yazhinipriyadharshini$