נושא: ,תרגיל בC#

using System;
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[ ] args)
        {
            // vars
            const int N = 20;
            int[ ] large = new int[N];
            int[ ] small = new int[5];
            int i;
            // initialize
            for ( i = 0 ; i < 5 ; ++i )
            {
                small[ i] = i + 1;
                Console.Write(small[ i]);
            }
            Console.WriteLine();
            for ( i = 0 ; i < N ; ++i )
            {
                large[i ] = i % 7;
                Console.Write(large[ i]);
            }
            // do the counting
            Console.WriteLine("\nsmall was fount {0} times in large", HowManyTimesIn(N, large, small));
        } 

        static int HowManyTimesIn(int N, int[ ] large, int[ ] small)
        {
            int count = 0;
            for ( int k = 0 ; k <= N - 5 ; ++k )
            {
                int l = 0;
                while ( l < 5 && small[ l] == large[k + l] )
                    ++l;
                if ( l == 5 )
                    ++count;
            }
            return count;
        } 
    }
}