Untitled

#include <iostream>
using namespace std;
int main ()
{
    const int SENTINEL = -99;
    int num,
        low,
        high,
        run = 0;


        do
        {
            cout << "Please enter a number: ";
            cin >> num;

            while (!cin) {
                cin.clear(); //Reset the flags, so you can use cin again
                cin.ignore(100, '\n'); //Empty the buffer
                cout << "Make sure you input a number. Try Again: ";
                cin >> num;
            }

            if (run == 0)
            {
                high = num;
                low = num;
            }
            else if(num < low && num != -99)
            {
                low = num;
            }
            else if (num > high && num != -99)
            {
                high = num;
            }
            run++;
        } while(num !=-99);

    cout << "Smallest Number is: " << low << endl;
    cout << "Largest Number is: "  << high << endl;

        return 0;
}