What is the meaning of operator overloading in C++ language?

Question

Please write one simple program to clarify operator overloading concept.

Answer 1

Ok. Overloading is when you have two functions with same name.
But different arguments;

So if you call a function. The arguments you passed will be avaliated. And finally
the right function implementation will be called.

Here my code:

https://code.sololearn.com/coFh2xSdOSH5

Answer 2

I think it is the same that just double result damn ... Or multiply or other... Why I would be use operator-overloading instead using just non-overloaded operators? What's it will give me more than non-ovrldng operators? For exam I can get obj1 in a, obj2 in b and then use x=a+b? For why it needs?