Lots of errors with C++; how do I fix them?

So I know C++ isn't offered on Treehouse, but I'm really hoping someone can help me. I have an assignment where I need to make a programme that needs to display the two best phone plans based on the data provided. Here is the code with errors:

using namespace std;

Bill* createBill(const Customer& billHolder, const PhonePlan& billPlan, const int& callCount, const PhoneCall history[0]);

PhoneCall history[0];

int getTotalHours() { // Method: Hours = Seconds / 3600 int getTotalHours(const Bill& bill); return history[0].getCallSeconds() / 3600; }

int getTotalMinutes() { // Method: Minutes = Seconds - (Hours * 3600) / 60 int getTotalMinutes(const Bill& bill); return history[0].getCallSeconds - (getTotalHours()* 3600) / 60; }

int getTotalSeconds() { // Method: Seconds = Seconds - (Hours * 3600) - (Minutes * 60) int getTotalSeconds(const Bill& bill); return history[0].getCallSeconds - (getTotalHours() * 3600) - (getTotalMinutes() * 60); }

double getCalledCost() { // Method: Called Cost = Plan Block * Plan Rate double getCalledCost(const Bill& bill); return history[0].getPlanBlock * PhonePlan.getPlanRate; }

double getTotalCost() { // Method: Total Cost = Called Cost - Plan Alowance double getTotalCost(const Bill& bill); if (PhonePlan.planAllowance > 0) { return getCalledCost - PhonePlan.phoneAllowance; } else return 0; }

void getTwoBest() { for (int i = 0; i < getTotalCost() - PhonePlan.monthlyFee; ++i) { if (getTotalCost() + PhonePlan.monthlyFee < getTotalCost() + PhonePlan.monthlyFee) { cheapestPlan() = getTotalCost() + PhonePlan.monthlyFee } else (getTotalCost() + PhonePlan.monthlyFee < getTotalCost() + PhonePlan.monthlyFee) { secondCheapestPlan() = getTotalCost() + PhonePlan.monthlyFee } } }

Basically the the errors are: 1) No matching constructor for initialisation of "PhoneCall [0]" 2) "PhonePlan" does not refer to a value 3) Cannot use dot operator on type, and 4) Variable declaration in condition must have initialiser.

Thanks!