hei there, this is C++ . can i get help with this code and its 3 short tests pls?

#include

#include

#include

#include

using namespace std;

class Customer

{

private:

long ID;

string firstName;

string lastName;

float purchases;

int yearsSinceLastPurchase;

int yearsSinceFirstPurchase;

public:

// Getters

long getID() { return ID; }

string getFirstName() { return firstName; }

string getLastName() { return lastName; }

float getPurchases() { return purchases; }

int getYearsSinceLastPurchase() { return yearsSinceLastPurchase; }

int getYearsSinceFirstPurchase() { return yearsSinceFirstPurchase; }

// Setters

void setID(long id) { ID = id; }

void setFirstName(string fn) { firstName = fn; }

void setLastName(string ln) { lastName = ln; }

void setPurchases(float s) { purchases = s; }

void setYearsSinceLastLastPurchase(int y) { yearsSinceLastPurchase = y; }

void setYearsSinceFirstPurchase(int y) { yearsSinceFirstPurchase = y; }

// Constructors

Customer(long id, string fn, string ln, float sal, int yslp, int ysfp)

{

ID = id;

firstName = fn;

lastName = ln;

purchases = sal;

yearsSinceLastPurchase = yslp;

yearsSinceFirstPurchase = ysfp;

}

// DO NOT EDIT OR CHANGE THIS METHOD

void display() // Used to display tcst case results

{

cout << fixed;

cout << setprecision(2);

cout << "ID: " << this->getID();

cout << " / First Name: " << this->getFirstName();

cout << " / Last Name: " << this->getLastName();

cout << " / Purchases: " << this->getPurchases();

cout << " / Years Since Last Purchase: " << this->getYearsSinceLastPurchase();

cout << " / Years Since First Purchase: " << this->getYearsSinceFirstPurchase() << endl;

}

// EXERCISE #3

// Returns true if target Customer has reached loyalty level and false otherwise.

// A loyalty level is reached after purchases of at least 1 thousand dollars

// and over 5 years since the first purchase.

bool isLoyal();

// EXERCISE #4

// Returns true target Customer should get a coupon before parameter Customer,

// and false if parameter Customer should get coupon first.

// Customers with the longest time since last purchase should get a coupon first.

//

bool nextForCoupon(Customer e2);

// EXERCISE #5

// Returns an int > 1 if target Customer's last name goes before target Customer

// alphabetically decreasing by last name, an int < 1 if parameter Customer should go first,

// and zero otherwise.

// HINT: Uses compariosn methods from the string class

int compareLastNames(Customer e2);

};

// EXERCISE #3

// Returns true if target Customer has reached loyalty level and false otherwise.

// A loyalty level is reached after purchases of at least 1 thousand dollars

// and over 5 years since the first purchase.

bool Customer::isLoyal()

{

return false;

}

// EXERCISE #4

// Returns true target Customer should get a coupon before parameter Customer,

// and false if parameter Customer should get coupon first.

// Customers with the longest time since last purchase should get a coupon first.

//

bool Customer::nextForCoupon(Customer e2)

{

return false;

}

// EXERCISE #5

// Returns an int > 1 if target Customer's last name goes before target Customer

// alphabetically decreasing by last name, an int < 1 if parameter Customer should go first,

// and zero otherwise.

// HINT: Uses compariosn methods from the string class

int Customer::compareLastNames(Customer e2)

{

return 0;

}

int main()

{

// test cases!!!!

// EXERCISE #3

Customer tc3(2, "Bienve", "Velez");

cout << (tc3.isLoyal() ? "TRUE" : "FALSE") << endl; // FALSE

tc3.setPurchases(1000);

tc3.setYearsSinceFirstPurchase(6);

cout << (tc3.isLoyal() ? "TRUE" : "FALSE") << endl; // TRUE

tc3.setPurchases(1000);

tc3.setYearsSinceFirstPurchase(6);

cout << (tc3.isLoyal() ? "TRUE" : "FALSE") << endl; // TRUE

tc3.setPurchases(999);

tc3.setYearsSinceFirstPurchase(6);

cout << (tc3.isLoyal() ? "TRUE" : "FALSE") << endl; // FALSE

// EXERCISE #4

Customer tc4(1, "Juan", "del Pueblo", 50000, 10, 20);

Customer tc5(1, "Maria", "del Pueblo", 60000, 15, 15);

cout << (tc4.nextForCoupon(tc5) ? "TRUE" : "FALSE") << endl; // FALSE

cout << (tc5.nextForCoupon(tc4) ? "TRUE" : "FALSE") << endl; // TRUE

// EXERCISE #5

Customer tc6(1, "Juan", "Rivera", 50000, 10, 20);

Customer tc7(1, "Maria", "Velez", 60000, 15, 15);

Customer tc8(1, "Maria", "Velazquez", 60000, 15, 15);

cout << ((tc6.compareLastNames(tc7) < 0) ? "Passed" : "Failed") << endl;

cout << ((tc7.compareLastNames(tc6) > 0) ? "Passed" : "Failed") << endl;

cout << ((tc7.compareLastNames(tc8) > 0) ? "Passed" : "Failed") << endl;

cout << ((tc8.compareLastNames(tc7) < 0) ? "Passed" : "Failed") << endl;

cout << ((tc7.compareLastNames(tc7) == 0) ? "Passed" : "Failed") << endl;

}