what's wrong with programming?

#include

#include

using namspace std;

struct names {

string first;

string last;

};

int main() {

names.customer = "Smith", "Orley";

cout << name.first << endl;

cout << names.last << endl;

return 0;

}

-------------------------

struct ThreeVals {

int a, b, c;

};

int main () {

TwoVals s, *sptr = nullptr;

*sptr.a = 1;

return 0;

}

--------------------------

struct Values { string name;

int age;

}

-------------------

#include

using namespace std;

class DumBell;

{

int wekght;

public:

void setWeight(int);

}

void setWeight(int w)

{

Weight = w;

}

int main()

{

DumBell bar;

DumBell(200);

cout << "The weight is " << bar.weight << endl;

return 0;

}

--------------------

class Change

{

public:

int pennies;

int nickels;

int dimes;

int quarters;

Change()

{

pennies = nickels = dimes = quarters = 0;

}

Change(int p = 100; int n = 50, d = 50, q = 25);

};

void Change::Change(int p, int n , d, q)

{

pennies = p;

nickels = n;

dimes = d;

quarters = q;

}

------------------

class Box

{

private:

double width;

double length;

double height;

public:

Box(double w, l, h)

{

width = w; length = l; height = h;

}

Box(Box b) // Copy constructor

{

width = b.width;

length = b.length;

height = b.height;

... Other member functions follow ...

};

---------------------

class Circle

{

private:

double diameter;

int centerX;

int centerY;

public:

Circle(double d, int x, int y)

{

diameter = d; centerX = x; centerY = y;

}

// Overloaded = operator

void Circle = (Circle &right)

{

diameter = right.diameter;

centerX = right.centerX;

centerY = right.centerY;

}

... Other member functions follow ...

};

-----------------

class Box

{

private:

double width;

double length;

double height;

public:

Box(double w, l, h)

{

width = w; length = l; height = h;

}

// Overloaded prefix ++ operator

void operator++()

{ ++width; ++length; }

// Overloaded postfix ++ operator

void operator++()

{ width++; length++; }

... Other member functions follow ...

};

-----------------

class Car, public Vehicle

{

public:

Car();

~Car();

protected:

int passengers;

}

---------------

Class Table : public Furniture

{

protected:

int numSeats;

public:

Table (int n) : Furniture (numSeats)

{

numSeats = n;

}

~Table();

}