AP CSA Unit 2 Day 6: Selection Range Check
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Unit 2, Selection & Iteration • Cycle 2
Day 6 Advanced Practice • Harder Difficulty
Focus: Range Validation
Hard
Selection (Range Check)
Advanced Practice Question
Format: Selection (Range Check)
A programmer wants to print "In range" when `n` is between 10 and 20 inclusive. Which condition correctly checks this?
A programmer wants to print "In range" when `n` is between 10 and 20 inclusive. Which condition correctly checks this?
Difficulty: Hard |
Topic: Selection (Range Check) |
Cycle: 2 (Advanced)
Why This Answer?
To include both endpoints, use `>= 10` and `<= 20` and combine with `&&` so BOTH must be true.
Common Mistake
Watch Out!
Using `||` makes the condition true for almost all numbers.
AP Exam Strategy
Range checks almost always use `&&`, not `||`.
Master This Topic
This Cycle 2 HARD question tests range validation. Review Unit 2 concepts to build mastery of selection and iteration.
- Understanding range validation
- Tracing code execution accurately
- Avoiding common pitfalls
Ready for More Challenges?
Cycle 2 questions prepare you for the hardest AP CSA exam questions.
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