Question: So far we have been using pass - by - value arguments, in which a value is passed to a function as an argument. Consider

So far we have been using pass-by-value arguments, in which a value is passed to a function as an argument. Consider the following code:
int x =7;
int y =20;
flip(x, y); // this is a function call
cout << x <<""<< y << endl; // should print 207

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