Python Interview Questions · interview question
Which practice avoids a common mistake with Two-Pointer Technique?
Multiple choiceMediumpython-interview-2026interviewpythonpitfall
Answer and explanation
Correct answer
D. Do not reach for two pointers automatically when the sequence lacks the ordering or invariant that makes pointer moves meaningful.
Why
Do not reach for two pointers automatically when the sequence lacks the ordering or invariant that makes pointer moves meaningful. This is a common failure mode in real Python code and a frequent interview follow-up.
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