Question

The Greatest and the Least of These:

Write a program with a loop that lets the user enter a series of integers, followed by the end of a sentinel -99 to signal the end of the series. After all the numbers have been entered, the program should display the largest and smallest numbers entered. ATTACHED IS MY CODE

1. I must use a constant in my line of code, WHERE CAN I PUT A CONSTANT?

2. How can i fool proof this code, so that when I enter a letter value it won't crash my program.

ATTACHED IS MY CODE

#include<iostream>
using namespace std;

int main()
{
double number, max, min;

cout << "Enter -99 to end the series.";
cout << "\nEnter a number in a series: ";
cin >> number;
min = max = number;

while (number != -99)
{

if (number > max)
max = number;
if (number < min)
min = number;
cout << "Enter a number in the series: ";
cin >> number;
}
cout << "\nThe Largest number is: " << max << endl;
cout << "\nThe Smallest number is " << min << endl;


return 0;
}

Answer 1

#include<iostream>
using namespace std;

int main()
{
   const int SENTINEL = -99;
   double number, max, min;
   
   cout << "Enter "<<SENTINEL<<" to end the series.";
   cout << "\nEnter a number in a series: ";
   cin >> number;
   min = max = number;
   
   while (number != SENTINEL)
   {
   
      if (number > max)
         max = number;
      if (number < min)
         min = number;
      cout << "Enter a number in the series: ";
      cin >> number;
   }
   cout << "\nThe Largest number is: " << max << endl;
   cout << "\nThe Smallest number is " << min << endl;
   
   return 0;
}