Advanced level 2026 Holy Infant High School mock Computer science 3

I have extracted the text and data from the latest image, which describes a programming task involving a number grid and sub-program logic.

---

PROGRAMMING: A COMPUTER PROGRAM FOR YOUNGER STUDENTS (35 Marks)

A team of four high-school students decided to create a computer program for younger students to help them learn to count and recognize whole numbers from 1 to 25.

A table partially completed with numbers from 1 to 25 is given to a younger student. The table consists of five rows and five columns (see Figure 1). The younger student must enter the remaining numbers. Each number from 1 to 25 should be entered only once.

Figure 1: Example table partially filled with numbers

	24	1
		7	14
4	6			22
10			21	3
11		25		9

Each of the four students is responsible for creating several sub-programs that will be included in the program.

The sub-program inputInRange() should return a valid input number. This will ensure that the younger student’s input is a number in the range 1–25 inclusive. If the input number is not in this range, an appropriate message is output. The process will be repeated until a valid number is input.

Example execution for N = inputInRange():

• Screen: Enter a number: 32

• Screen: The number is not in the range from 1 to 25. Please try again.

• Screen: Enter a number: 0

• Screen: The number is not in the range from 1 to 25. Please try again.

• Screen: Enter a number: 15

• Result: The value of N would be 15 after execution.

---

Questions

1) Write a programming language (PL) sub-program inputInRange(). (5 marks)

2) Write a programming language (PL) sub-program InsertValues(MAT) that inserts values to the array MAT after verifying if each number falls in the range (1-25) inclusive by calling on the sub-program inputInRange(). (5 marks)

3) Write a programming language (PL) sub-program Initialise() that initialises the one-dimensional array, FLAGS, with zero (0) values. (3 marks)

• NB: FLAGS and N are global variables.

---

Would you like me to provide the code for these sub-programs in C, or perhaps help you design a marking rubric for these specific tasks?