FizzBuzz. Can be written in shorter lines of code. But I find this implementation to be clearer.

gistfile1.txt

using System;

namespace Dialalpha.FizzBuzz
{
    class Program
    {
        static void Main(string[] args)
        {
            bool fizz = false, buzz = false;
            for (int i = 1; i <= 100; ++i)
            {
                fizz = (i % 3 == 0);    // true if i is a multiple of 3
                buzz = (i % 5 == 0);    // true if i is a multiple of 5

                if (fizz && buzz)
                    Console.WriteLine("FizzBuzz");
                else if (fizz)
                    Console.WriteLine("Fizz");
                else if (buzz)
                    Console.WriteLine("Buzz");
                else Console.WriteLine(i);
            }
        }
    }
}

I think this is the cleanest and probably most efficient solution, but if I am going to be a stickler:

• 'fizz' and 'buzz' don't need assignments (the "= false") at the beginning
• For consistency "Console.WriteLine(i);" should go on the next line
• Some comments would be nice, specifically something saying that "(i % 3 == 0)" is done to check if it is a multiple of 3. (a lot of new coders haven't really used the modulus operator so they would have no idea what you are doing or why there)

@EricBeales: I usually tend to initialize my booleans when I declare them just to be on the safe side. I'll edit to add some comments though. Thanks.