Help with my very basic C+ code

[TheGreatEscape]

#include <iostream>
using namespace std;

int main()
{
float count, rollingtotal, number, average;

count = -1;
rollingtotal = 0;


while (number != 00) {
    cout << "Please input a number. Type '00' to exit: ";
    cin >> number;

rollingtotal = (rollingtotal + number);
count++;
}
if (number == 00) {
    average = (rollingtotal / count);
    cout << "The Average of the numbers you entered are: ";
    cout << average;
    cout << " Total numbers entered: ";
    cout << count;
} else {
 cout << "Error";
}
}

2 problems that i have encountered.

1. If a person types '0' the loop will break. How do i make '00' not equal '0'. I know 00 is 0, but is there a way to stop that?

2. My count was always 1 above what it should be, the only way i found to fix this was to delcare count as -1. Is there a better way to fox this problem?

3. How would you write this programe? Since im guessing this could be omptimised alot.

Thanks

 

[Fox.]

The problem with integers, you won't be able to exit the loop since any number could be considered as valid input. You can go around it by using a string and detecting if the value is an integer, by using sstream.

#include <iostream>
#include <sstream>
#include <string>
using namespace std;

int main() {
    cout << "Simple average calculator." << endl;
    cout << "Commands: average(shows average) exit(exit application)\n" << endl;
    
    float total(0),number(0),tick(0),programLoop(0),average(0);
    
    while (1) {
    
          string input;
          string stop;
          cout << "Input: ";
    
          cin >> input;
    
          if (istringstream(input) >> number) {
             total += number;
             tick++;
          }
          else if (input == "average") {
               if (total == 0) {
                         cout << endl << "The average is 0. Good job!\n" << endl;
                         tick = 0,total = 0;
               }
               else {
               average = (total / tick);
               cout << endl << "The average is " << average << ".\n" << endl;
               tick = 0,total = 0;
               }
          }
          else if (input == "exit") {
               return 0;
          }
    
    }
}