What's the problem of my code

Question

https://code.sololearn.com/cT8f6h271eDj/?ref=app

Answer 1

Missing ; at the end of line 19.
Line 21 should be like this.
cout << endl << "q=" << q << "p=" << p <<" q*p= " << q*p;

Answer 2

Few unused variables are declared other are already said by Avinesh
Fixed :
https://code.sololearn.com/cCE0aH3lQ3oZ/?ref=app

Answer 3

Thanks for your help