Please help me to by answering these following Computer science C++ questions with explanation:

Question #1. In the following code, what does function P do? #include //Function declarations void P(int [],int,int); void Print(int [],int); void Swap(int [],int,int); void Rotate_Left(int v[],int,int); using namespace std; int main() { int N; cout<<"Please enter 'N'"<>"; cin>>N; int v[100]; for (int i=0; i=start; i--) { for(j=i+1; j

Question #2.In lecture we went over the Rat class. Here the question is to write a Complex ( imaginary number )

class; using namespace std; class Complex { private: double r; double i; Practice Problems for CS211 Final 3 public: Complex(); overloaded add function for Complex should return Complex overloaded subtract function for Complex should return Complex overloaded multiply function for Complex should return Complex overloaded divide function for Complex should return Complex get and set for both r and i overloaded input and output functions for Complex };