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What does the function can_attend_meetings return when called with a single meeting interval [[10,10]]?

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Intervals - Meeting Rooms I
What does the function can_attend_meetings return when called with a single meeting interval [[10,10]]?
ANone
BError due to zero-length interval
CFalse
DTrue
Step-by-Step Solution
Solution:

  1. Step 1: Sort single interval

    Only one interval [[10,10]], sorting has no effect.

  2. Step 2: Check overlap condition

    Start=10, end=-inf initially, 10 < -inf is false, update end=10, loop ends, return True.

  3. Final Answer:

    Option D -> Option D

  4. Quick Check:

    Single interval always non-overlapping [OK]
Quick Trick: Single interval means no overlap [OK]
Common Mistakes:
MISTAKES
  • Assuming zero-length intervals cause error
  • Confusing < with <= in overlap check
Trap Explanation:
PITFALL
  • Candidates may think zero-length intervals are invalid or overlapping incorrectly.
Interviewer Note:
CONTEXT
  • Tests handling of edge cases with minimal input.
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