The user input consists of positive integers. A negative number or 0 is the sign that the input is over. Create the program that prints the total number of different integers that the user has entered. Your code should replace the text
// ??? //
below.
#include<iostream>
#include "simple_set_and_map.cpp"
int main(){
ssm::set<long> allNumbers;
long x;
std::cin>>x;
while(x>0){
allNumbers.insert(x);
std::cin>>x;
}
// ??? //
return 0;
}