You are to write a program that allows a user purchase tickets to a Broadway musical. The

program asks the user how much money they have to spend on tickets and then asks them how

many tickets they would like to purchase. The program must implement the following function

that is called once the user has entered all the information:

$/*****************************************************************$

$*$

$*$ Function: PurchaseTickets

$*$

$*$ Parameters:

$*$

$*$ pRemainingCash $-$ points to a variable containing the

$*$ amount of cash the user has

$*$

$*$ adultTickets $-$ specifies the number of adult tickets

$*$ the user wants to purchase.

$*$

$*$ childTickets $-$ specifies the number of child tickets

$*$ the user wants to purchase.

$*$

$**$ Description:

$*$ The function will determine if the user has enough

$*$ money to purchase the specified number of tickets.

$*$ If they do$,$ then the function deducts the proper

$*$ funds from their remaining cash and returns

$*$ the total number of tickets purchased. If they do not

$*$ the function returns $0.$

$*$

$******************************************************************/$

int PurchaseTickets$($double $*$pRemainingCash$,$ int adultTickets,

int childTickets$)$;

You must also use the following two constants to represent the ticket prices:

#define ADULT$\_$TICKET$\_$PRICE $69\mathrm{.}00$

#define CHILD$\_$TICKET$\_$PRICE $35\mathrm{.}00$

The program must prompt the user for the following information and in the following order:

$$ Amount of cash they have

$$ Number of child tickets to purchase

$$ Number of adult tickets to purchase

If the user has enough money to purchase the requested tickets, display the number of tickets

they purchased and the remaining cash they have after the purchase. If the user does not have

enough money to purchase the tickets, tell them and exit the program.

Here are two sample interactions:

Sample $1$:

How much money do you have to purchase tickets?

$300\mathrm{.}00$

How many child tickets would you like to purchase?

$2$

How many adult tickets would you like to purchase?

$3$

You have purchased $5$ tickets, and you have $$23\mathrm{.}00$ remaining

Sample $2$:

How much money do you have to purchase tickets?

$100\mathrm{.}00$

How many child tickets would you like to purchase?

$2$

How many adult tickets would you like to purchase?

$4$

You do not have enough money to purchase the tickets

Here is what I have so far:

#include

#define ADULT$\_$TICKET$\_$PRICE $69\mathrm{.}00$

#define CHILD$\_$TICKET$\_$PRICE $35\mathrm{.}00$

int PurchaseTickets$($double $*$pRemainingCash$,$ int adultTickets, int childTickets$)$;

int main$($void$)$

$\{$

double cash;

int childTickets;

int adultTickets;

$//$printf to ask for the amount of cash

printf$("$How much money do you have to purchase tickets?:

$")$;

$//$scanf and error checking

scanf$("\%$d$",$ cash$)$;

$//$ask for number of child tickets

printf$("$How many child tickets would you like to purchase?:

$")$;

$//$ scanf and error checking

scanf$("\%$d$",$ childTickets$)$;

$//$ask for number of adult tickets

printf$("$How many adult tickets would you like to purchase?:

$")$;

$//$ scanf and error checking

scanf$("\%$d$",$ adultTickets$)$;

if $($PurchaseTickets$($&cash, adultTickets, childTickets$)>0)$

$\{$

printf$("$You have purchased $\%$d tickets, and you have $$\%3\mathrm{.}2$f remaining.", adultTickets $+$ childTickets, cash$)$;

$\}$

else

$\{$

printf$("$You did not purchase any tickets.

$")$;

$\}$

return $0$;

$\}$

int PurchaseTickets$($double $*$pRemainingCash$,$ int adultTickets, int childTickets$)$

$\{$

int numTicketsPurchased $=0$;

return numTicketsPurchased; $//$ if user does not have enough money for the tickets

$\}$