create a program for the sales manager at Computer Haven a s

create a program for the sales manager at Computer Haven, a

small business that offers motivational seminars to local companies. Figure 7-53 shows

the charge for attending a seminar. Notice that the charge per person depends on the

number of people the company registers. For example, the cost for four registrants

is $400; the cost for two registrants is $300. The program should allow the sales manager

to enter the number of registrants for as many companies as needed. When the sales

manager has finished entering the data, the program should calculate and display the

total number of people registered, the total charge for those registrants, and the average

charge per registrant. For example, if one company registers four people and another

company registers two people, the total number of people registered is six, the total

charge is $700, and the average charge per registrant

is $116.67.

Figure 7-53

Number of people a company registers Charge per person ($)

       1 – 3                                                                                                               150

       4 – 9                                                                                                                100

    10 or more                                                                                                               90

a. Create an IPO chart for the problem, and then desk-check the algorithm appropriately.

b. List the input, processing, and output items, as well as the algorithm, in a chart similar

to the one shown earlier in Figure 7-42. Then code the algorithm into a program.

c. Desk-check the program using the same data used to desk-check the algorithm.

Display the average charge with two decimal places.

Solution

IPO and Algorithm

Input

Processing

Output

No of Persons n

If the number is < 4 cost is 200

if n is between 3 and 10 then cost is 150

Else cost is 90

Multiply the number by the cost = charge

Avg = totalCharge /totalPersons

Cost of registrations

Average

Program

#include<iostream>

int main()
{
  
   int n, totalPersons;
   float charge, totalCharge;
   totalCharge=0;
   totalPersons=0;
  
  
   while(true)
   {
       cout << \"Enter no of Persons or 0 to exit: \";
       cin >> n;
      
       if(n==0)
       break;
       else
       {
           if(n>=1 && n <4)
               charge= n*150;
           else if(n>=4 && n<10)
               charge=n*100;
           else charge=n*90;
       }
       cout << \"Total Charge for \"<<n<<\" persons is \"<<charge<<endl;
       totalCharge=totalCharge+charge;
       totalPersons+= n;
  
   }
  
   cout << \"Averahe is: \"<< totalCharge/totalPersons;

}