Contoh Soal 24o1h

Intermodule communication was defined as the flow of information or data between modules. Local and global variables were introduced, along with the scope of a variable and the side effects of using only global data. The ing of parameters was introduced as a form of intermodule communication, and the differences between formal and actual parameters, and value and reference parameters, was explained. The steps in modularization that a programmer must follow were listed. These were: define the problem; group the activities into subtasks or functions; construct a hierarchy chart; establish the logic of the mainline using pseudocode; develop the pseudocode for each successive module in the hierarchy chart; and desk check the solution algorithm. Programming examples using these six steps in modularization were then developed in pseudocode.

Programming problems Construct a solution algorithm for the following programming problems. To obtain your final solution, you should: • • • • • •

define the problem group the activities into modules (also consider the data that each module requires) construct a hierarchy chart establish the logic of the mainline using pseudocode develop the pseudocode for each successive module in the hierarchy chart desk check the solution algorithm.

1. Design an algorithm that will prompt for and accept an employee's annual salary, and calculate the annual income tax due on that salary. Income tax is calculated according to the following table and is to be displayed on the screen. Portion of salary

Income tax rate (%)

$0 to $4999.99

0

$5000 to $9999.99

6

$10000 to $19999.99

15

$20000 to $29999.99

20 17

Portion of salary

Income tax rate (%)

$30000 to $39999.99

25

$40000 and above

30

Your program is to continue to process salaries until a salary of zero is entered. 2. Design an algorithm that will prompt for and accept four numbers, sort them into ascending sequence and display them to the screen. Your algorithm is to include a module called Order _two_numbers that is to be called from the mainline to sort two numbers at a time. 3. Design an algorithm that will prompt for and accept a four-digit representation of the year (for example, 2003). Your program is to determine if the year provided is a leap year and print a message to this effect on the screen. Also print a message on the screen if the value provided is not exactly four numeric digits. Continue processing until a sentinel of 0000 is entered. 4. The of the board of a small university are considering voting for a pay increase for their 25 faculty . They are considering a pay increase of 8%. However, before doing so, they want to know how much this pay increase will cost. Design an algorithm that will prompt for and accept the current salary for each of the faculty , then calculate and display their individual pay increases. At the end of the algorithm, print the total faculty payroll before and after the pay increase, and the total pay increase involved. 5. Design an algorithm that will produce an employee payroll from an employee file. Each input employee record contains the employee number, employee's gross pay, income tax, union dues, and other deductions. Your program is to read the employee file and print a detail line for each employee record showing employee number, gross pay, income tax, union dues, other deductions and net pay. Net pay is calculated as gross pay – income tax – union dues – other deductions. At the end of the report, print the total net pay for all employees. 6. Design an algorithm that will produce an inventory report from an inventory file. Each input inventory record contains the item number, open inventory amount, amount purchased and amount sold. Your program is to read the inventory file and print a detail line for each inventory record showing item number, open inventory amount, amount purchased, amount sold and final inventory amount. The final inventory amount is calculated as opening inventory amount + purchases - sales. At the end of the report, print the total open inventory amount, the total amount purchased, the total amount sold and the total final inventory amount.

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7. Design an algorithm that will produce a savings balance report from a customer savings file. Each input savings record contains the number, balance forward, deposits (sum of all deposits), withdrawals (sum of all Withdrawals) and interest earned. Your program is to read the savings file and print a detail line for each savings record showing number, balance forward, deposits, withdrawals, interest earned end final balance. The final balance is calculated as balance forward + deposits – withdrawals + interest. A heading is to appear at the top of each page and allowance is to be made for 45 detail lines per page. At the end of the report, print the total balances forward. total deposits, total withdrawals, total interest earned and total final balances. 8. Design an algorithm that will read a file of sales volume records and print a report showing the sales commission owing to each salesperson. Each input record contains salesperson number, name and that person's volume of sales for the month. The commission rate varies according to sales volume, as follows: On sales volume ($) of

Commision rate (%)

$0.00-$200.00

5

$200.01-$1000.00

8

$1000.01-$2000.00

10

$2000.01 and above

12

The calculated commission is an accumulated amount according to the sales volume figure. For example, the commission owing for a sales volume of $1200.00 would be calculated as follows: Commission = (200 * 5%) + ((1000 - 200) * 8%) + ((1200 - 1000) * 10%)) Your program is to print the salesperson's number, name, volume of sales and calculated commission, with the appropriate column headings. 9. Design an algorithm that will prompt for and receive your current cheque book balance, followed by a number of financial transactions. Each transaction consists of a transaction code and a transaction amount. The transaction code can be a deposit ('0') or a cheque ('C'). Your program is to add each deposit transaction amount to the balance and subtract each cheque transaction amount. After each transaction is processed, a new running balance is to be displayed on the screen, with a warning message if the balance becomes negative. When there are no more transactions, a 'Q' is to be entered for transaction code to signify the end of the data. Your algorithm is then to display the initial and final balances, along with a count of the number of cheques and deposits processed. 19

10. At Olympic diving competition level, 10 diving judges award a single mark (with one decimal place) for each dive attempted by a diving competitor. This mark can range from a to 10. Design an algorithm that will receive a score from the 10 judges and calculate the average score. The screen should display the following output:

20

Judge

1

2

3

4

5

6

7

8

9

10

Mark

6.7

8.1

5.8

7.0

6.6

6.0

7.6

6.1

7.2

7.0

Score for the dive

6.81