נושא: אני צריכה עזרה בתרגיל בc#

namespace counter
{
    class Program
    {
        static void Main(string[] args)
        {
             // initialize an array of counters,
             // one for each letter in the ascii.
             int[] counter = new int[256];
             for (int i = 0; i < counter.Length; ++i)
                 counter = 0;

             // get input from the dumb user...
             Console.Write("Enter a string: ");
             string s = Console.ReadLine();

             // do the calculations...
             int maxIndex = 1; // ☺
             foreach (char c in s)
                 if (++counter[(int)c] > counter[maxIndex])
                     maxIndex = (int)c;

             // display output...
             Console.WriteLine("most common char is `{0}` ({1} times).",
                 (char)maxIndex,
                 counter[maxIndex]);
        }
    }
}