Question

Salute..

Let’s see this example:

int x,y,s;
cin>>x>>y;
s=x+y;

here we have three variables for adding two values..

Can we do this just with one variable?

thanks.

Answer 1

How about zero variables?

#include <numeric>
#include <iterator>
#include <iostream>

int main()
{
  std::cout <<
    std::accumulate(
      std::istream_iterator<int>(std::cin),
      std::istream_iterator<int>(),
      0) <<
    "\n";
}