PCEP Control Flow, Loops, Lists and Logic Practice Question
Which TWO of the following code snippets will print the numbers 0, 1, 2, 3, 4?
⚠ Common exam trap
Python Institute often tests the exclusive nature of the stop argument in `range()`, leading candidates to mistakenly think `range(5)` includes 5 or that `range(0,5)` includes 5, when in fact both produce 0 through 4.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
for i in range(0,5): print(i)
`range(0,5)` generates the sequence 0, 1, 2, 3, 4. The `range()` function with two arguments (start, stop) produces numbers from start inclusive up to, but not including, stop. Therefore, iterating with `for i in range(0,5): print(i)` prints exactly 0 through 4.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
for i in range(0,5): print(i)
Why this is correct
Prints 0..4.
- ✗
for i in range(5+1): print(i)
Why it's wrong here
Prints 0..5.
- ✓
for i in range(5): print(i)
Why this is correct
Prints 0..4.
- ✗
for i in range(0,5,2): print(i)
Why it's wrong here
Prints 0,2,4 only.
- ✗
for i in range(1,6): print(i)
Why it's wrong here
Prints 1..5.
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