C/C++ Get Help with C++ Homework: Solving Problems with User Input

[FallArk]

I ran into some problems when trying to finish my assignment. The objective of this assignment is to create a block of code that will keep asking the user to input numbers until the input is 0. And if the user input 0 for the first value it will say "No data submitted!". I got all those parts, but the assignment also requires me to let the program output the highest and lowest value of all the input when the user input 0 (the user ended the program).
This is what I have done so far:

#include <iostream>
using namespace std;
int main() {
    int input = 1;
    cout << "Enter a number: ";
    cin >> input;
    if (input == 0) {
        cout << "No data submitted!";
    }
        else {
            while (input != 0) {
                cout << "Enter a number: ";
                cin >> input;
            }
        }
        return 0;
}

I don't really know how to rank the numbers, I think I should use array, but I'm not sure if the user then can input an infinite amount of values. Thanks in advance!

 

[Greg]

I wouldn't worry about an infinite amount of entries. Due to physical constraints the input would have to end (possibly in a buffer overrun) so limit the size of your array to what the machine can handle. Do you know how to do this? If not, I don't think it's unreasonable to limit your buffer size to, say, 1024 numbers having a value between -2³¹ and 2³¹ (for a 32-bit machine).

Having said that, can you now set up your array and write the code for finding the highest and lowest numbers?

 

[MarkFL]

I don't think I would use an array. I would initialize 2 variables...one for the maximum and one for the minimum and on the first input, set both of these equal to the input number. Then on subsequent inputs, if the input is less than the current minimum, set the minimum to the input value, and it the input is greater than the current maximum, set the maximum to the input value. :)

 

[FallArk]

I don't think I would use an array. I would initialize 2 variables...one for the maximum and one for the minimum and on the first input, set both of these equal to the input number. Then on subsequent inputs, if the input is less than the current minimum, set the minimum to the input value, and it the input is greater than the current maximum, set the maximum to the input value. :)

That's what I did! I figured it out!