// https://godbolt.org/z/ceT6o5zxd
#include <iostream> // for std::cin, std::cout, std::endl
#include <string> // std::stoi
void calculate(int n) { // a separate function
using namespace std; // for std::cout and std::endl
/* output divisors */
cout << "divisors of " << n << " are:\n";
if(n == 0) { cout << "0\n"; return; } // 0 is divisor of 0
for(int divider=1; divider <= n; ++divider) { // for divider=divider+1
if(n % divider == 0)
cout << divider << ", ";
}
cout << endl;
}
int main(int argc, const char* argv[]) { // Arguments for main
/* Determine number */
int value = 0;
if(argc<=1) {
std::cout << "Enter a number: ";
std::cin >> value; // read into variable wert
if(!std::cin) { // check whether reading worked
return 1; // error on user input
}
} else {
value = std::stoi(argv[1]);
}
calculate(value); // function call
return 0;
}