Fibonacci in Beef

Published on 22 January 2024 (Updated: 22 January 2024)

Welcome to the Fibonacci in Beef page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

using System;

namespace Fibonacci;

class Program
{
    public static void Usage()
    {
        Console.WriteLine("Usage: please input the count of fibonacci numbers to output");
        Environment.Exit(0);
    }

    public static Result<T> ParseInt<T>(StringView str)
    where T : IParseable<T>
    {
        StringView trimmedStr = scope String(str);
        trimmedStr.Trim();

        // T.Parse ignores single quotes since they are treat as digit separators -- e.g. 1'000
        if (trimmedStr.Contains('\''))
        {
            return .Err;
        }

        return T.Parse(trimmedStr);
    }

    public static void Fibonacci(int32 n)
    {
        uint64 first = 0;
        uint64 second = 1;
        for (int i in 1...n)
        {
            second += first;
            first = second - first;
            Console.WriteLine($"{i}: {first}");
        }
    }

    public static int Main(String[] args)
    {
        if (args.Count < 1)
        {
            Usage();
        }

        int32 val = 0;
        switch (ParseInt<int32>(args[0]))
        {
            case .Ok(out val):
            case .Err:
                Usage();
        }

        Fibonacci(val);
        return 0;
    }
}

Fibonacci in Beef was written by:

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

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