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A quiz has 5 questions but only 4 answers…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A quiz has 5 questions but only 4 answers. What happens when the loop for i in range(len(questions)): runs, and what is the message? Write one line that protects the program.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Plan. The loop uses the positions 0 to 4 of questions. At position 4, it asks for answers[4], but the list answers has only the positions 0 to 3.
Python stops with IndexError: list index out of range, after the four questions that had answers.
The protection. Check the lengths before the loop.
Check. Run it. The message shows 5 and 4. After you add the missing answer, nothing is shown.
Answer: An IndexError at the fifth question. Compare len(questions) with len(answers) before the loop.
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