I've gotten the point and solution :)
Thank you guys!

Thank you, vijayan121. I am going to take a look at the item.

Thank you, Dragon. Does that mean that, on our side (not the client side), to restrict the location of object creation is pointless? I mean that it's client's responsibility to determine where...

Yesterday I saw a question that was asking to prevent creating objects on heap.

After some thoughts, I came out the following:


class Foo
{
public:
Foo(const Foo& f) {}
static Foo...

Hope you figured this out already. If not, what basically you need to do is use "get" or "ignore" to eat the word before the number, then you can do your summation as usual.

What result are you expecting from the example data? 2004?

did you fout << sum ?