Computer science O level 2210 Pre Release Material May/june 2017 (Pseudo Code & V.B Console Mode)

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Pre Release Material  SOLVED (Pseudo Code & V.B Console Mode) 

Summer 2017 | O Levels | Computer Science  


  In Preparation for the examination candidates should attempt the following practical tasks by writing and testing a program or programs.

 The Organizer of a senior citizens’ club has arranges outings for the members. For each of these outings a coach is hired, meals at a restaurant are reserved and tickets for the theater has booked. A program is required to work out the costs and provide a printed list showing everyone on the outing.

   --Write and test a program for the club organizer.
   --Your program must include appropriate prompts for the entry of data.
   -- Error message and other output need to be set out clearly.
   --All variables, constants and other identifiers must have meaningful names.

   You will need to complete these three tasks. Each task must be fully tested.

  -Work out the total cost of the outing.

TASK 1 

The organizer finds out how many senior citizens are interested in the outing. The program for Task 1 works out the cost for the information.

Number of people   Hire of couch   Cost of a meal   Cost of theater ticket  

   12 – 16                     150                 14.00                  21.00
   17 – 26                     190                 13.50                  20.00
   27 – 39                     225                 13.00                  19.00

The minimum number of senior citizens needed for the outing to go ahead is 10; there cannot be more than 36 senior citizens on the outing. A minimum of two carers go on the outing. With an additional carer needed if more than 24 citizens go on the outing. Carers do not have to pay anything for the outing.

- Workout the total cost per person for the senior citizens.

Task 2   

  -Record who is going on the outing and how much has been paid.

Using your results from Task 1, record the names of the people on the outing and the amount they have paid; include the carers on the outing. If there are spare places on the coach then extra people can be added; they are charged the same price as the other citizens. Calculate the total amount of money collected. Print out the list of the people on the outing.

Task 3   

  -Identify the break-even point or profit that will be made on the outing.

Show whether the outing has made a profit or has broken even using the estimated cost from the Task 1 and money collected from Task 2.
 

Solution (Pseudo Code) 

Task 1  

DECLARE citizen, people : integer 
DECLARE total, cost_per_person : real 
people <-- 0, total <-- 0, cost_per_person <-- 0 
OUTPUT (“Enter in numbers how many senior citizens are interested in the outing”) 
INPUT citizen 
WHILE (citizen < 10 OR citizen > 36) 
       OUTPUT (“The minimum number of senior citizens needed for the outing to go ahead is 10;              there cannot be more than 36 senior citizens on the outing.”) 
       OUTPUT (“Enter in numbers how many senior citizens are interested in the outing”) 
INPUT citizen 
ENDWHILE 
IF citizen > 24 THEN people  citizen + 3  
    ELSE People <-- citizen + 2 
ENDIF 
IF people >= 12 AND people <= 16 THEN 
    total <-- 150 + (14.00 * people) + (21.00 * people) 
ENDIF 
IF people >= 17 AND people <= 26 THEN 
       total <-- 190 + (13.50 * people) + (20.00 * people) 
ENDIF  
  
IF people >= 27 AND people <= 39 THEN 
      total <-- 225 + (13.00 * people) + (19.00 * people) 
ENDIF 
cost_per_person <-- total/citizen  

TASK 2  

DECLARE name(39) : string    
DECLARE amount(39) : real 
DECLARE seats, updated_people, c : integer 
DECLARE extra_amount, total_amount, amount_paid : real 
Seats <-- 0, updated_people <-- 0, extra_amount <-- 0, total_amount <-- 0, amount_paid <-- 0 
FOR c <-- 1 to people 
       OUTPUT (“Enter the name of person on the outing”) 
INPUT name(c) 
       OUTPUT (“Enter the amount paid by the person”) 
INPUT amount(c) 
       amount_paid = amount_paid + amount(c) NEXT 
      OUTPUT (“If there are spare places on the coach then extra people can be added; they are charged the same price as the other citizens.”) 
IF people >= 12 AND people <= 16 THEN  
seats <-- 16 – people 
ENDIF 
IF people >= 17 AND people <= 26 THEN  
seats <-- 26 – people 
ENDIF 
IF people >= 26 AND people <= 39 THEN  
seats <-- 39 – people 
ENDIF 
extra_amount <-- cost_per_person * seats 
total_amount <-- total + extra_amount  
Updated_people <-- people // Comment * : if there will be no extra people 
IF seats >= 1 THEN 
updated_people  people + seat // Comment * : if there are extra people 
      OUTPUT(“seats available for : ”, seats,” person(s), Enter Name and Amount for people will to go for outing”) 
FOR d <-- c to updated_people   //Comment *: appending the same arrays 
      OUTPUT (“Enter the name of person on the outing”) 
INPUT name(d) 
      OUTPUT (“Enter the amount paid by the person”) 
INPUT amount(d) 
            amount_paid = amount_paid + amount(d) NEXT 
ENDIF 
 FOR c  1 to updated_people 
            OUTPUT (“The Citizens’ Name :”, name(c) ,” & the amount submitted :”, amount(c)) 
NEXT  

Task 3  

DECLARE profit : real 
profit <--  amount_paid – total_amount 
IF profit > 0 THEN OUTPUT (“ The Profit Gained : “, profit) 
ELSE OUTPUT (“The Break Even Point Value : “,total) 

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