ITPEC FE Subject B October 2025 Question 1

The loop iterates i from k to m (inclusive). Two blanks must be filled:

• •A (condition): array[i] mod 2 = 0 — checks if the element is even (remainder 0 when divided by 2)
• •B (increment): i ← i + 1 — advances the index forward each iteration

Why not others:
- (b) i ← i - 1 — index moves backward → infinite loop, never reaches endwhile
- (c) array[i] mod 2 ≠ 0 — selects odd elements, opposite of the requirement
- (d) wrong condition AND wrong increment — double error

Key rule: Even number check = value mod 2 = 0; always increment (i + 1) when iterating forward through an array.

AI-generated — may contain errors