Binary Search in array C++

Using Visual Studio 2015

===============================================================

#include<iostream>

using namespace std;

#include<conio.h>

void main ()

{

       int arr [10], as = 10, start = 0, end = 9, mid = (start + end) / 2, input;

       bool check = false;

       for (int i = 0; i < as; i++)

       {

       cout<<"Enter the number "<<(i+1) <<"=";

       cin>>arr[i];

       }

       cout << "Enter the value to search= ";

       cin >>input;

       while (start <= end)

       {

              mid = (start + end) / 2;

              if (input == arr[mid])

              {

                     check = true;

                     break;

              }

              else if (input>arr[mid])

              {

                     start = mid + 1;

              }

              else if (input<arr[mid])

              {

                     end = mid - 1;

              }

       }

       if (check == false)

       {

              cout << "Element Not Found";

       }

       else

              cout << "Element Found";

       _getche ();

}

==============================================================