How to calculate the sum & product of dis-similar numbers of an array[10].
i do have a code but it stop working after a certain limit, so please help.....

Let's see what you have

Let's see what you have

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int i, j, k, sum, c;
            

            sum = 0;
            int[] m = new int[10];
            for (k = 0; k < 10; k++)
            {
                Console.Write("Enter Value: ");
                m[k] = Convert.ToInt16(Console.ReadLine());
            }

            for (i = 0; i < 10; i++)
            {

                c = 0;

                for (j = i + 1; j < 10; j++)
                {

                    if (m[i] == m[j] && c==0)
                    {
                        sum = sum + m[i];
                        sum = sum + m[j];
                        m[j] = 0;

                        c++;

                    }
                    else if (m[i] == m[j])
                    {
                        
                        sum = sum + m[j];
                        m[j] = 0;



                    }



                }



            }
            Console.WriteLine("sum of similar numbers : " + sum);

            Console.ReadLine();
        }
    }
}

// sum of dissimilar numbers can simply be found by subtracting the sum of similar numbers from the total sum.....

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {

            int i, j, k, p;


            p = 1;
            int[] m = new int[4];
            for (k = 0; k < 4; k++)
            {
                Console.Write("Enter Value: ");
                m[k] = Convert.ToInt16(Console.ReadLine());
            }

            for (i = 0; i < 4; i++)
            {


                for (j = i + 1; j < 4; j++)
                {
                    if (m[i] == m[j])
                    {
                        m[j] = 1;
                        if (j == 3)
                        {
                            m[i] = 1;
                        }
                    }


                }








            }
            for (k = 0; k < 4; k++)
            {
                p = p * m[k];
            }
            if (p == 1)
            {
                Console.WriteLine("Product of dis-similar numbers :  0");

            }
            else
            {
                Console.WriteLine("sum of similar numbers : " + p);
            }
            Console.ReadLine();
        }
    }
}

Let's see what you have

using System;

namespace ConsoleApplication5
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = { 3, 5, 7, 1, 3, 8, 7, 1, 1, 10, 15, 32, 3 };

            int sum = 0;
            int mul = 1;
            int count = 0;

            for (int k = 0; k < arr.Length; k++ )
            {
                for (int i = 0; i < arr.Length; i++)
                    if (arr[k] == arr[i])
                        count++;

                if (count == 1)
                {
                    sum += arr[k];
                    mul *= arr[k];
                }

                count = 0;
            }

            Console.WriteLine("Sum = : {0}\nMul = : {1}", sum, mul);
            Console.ReadKey();
        }
    }
}
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