C＃

Mono C＃

Installation

Ubuntu
apt install mono-core
Alma Linux
dnf install mono-core
Arch Linux
pacman -S mono

Examples

Fibonacci Numbers
// Fibonacci Numbers
using System;

class Fibonacci
{
    static long Fib(int n)
    {
        if (n < 2)
            return n;
        else
            return Fib(n - 2) + Fib(n - 1);
    }

    static void Main(string[] args)
    {
        int n = int.Parse(args[0]);
        Console.Write(Fib(n));
    }
}

/*
example
    compile:
        mcs -optimize+ fib_cs.cs
    run:
        ./fib_cs.exe 39
*/