Intervals - Meeting Rooms II (Minimum Conference Rooms)
What is the output of the min-heap based Meeting Rooms II solution when given a single meeting interval [[0,0]]?
What is the output of the min-heap based Meeting Rooms II solution when given a single meeting interval [[0,0]]?
medium🧾 Code Trace Q4 of Q15
Step-by-Step Solution
Solution:
Step 1: Sort intervals
Only one interval [[0,0]] remains unchanged.Step 2: Push end time 0 into heap
Heap contains one element; no other intervals to process.Final Answer:
Option C -> Option CQuick Check:
One meeting requires one room even if start=end [OK]
Quick Trick: Single interval always needs one room [OK]
Common Mistakes:
MISTAKES- Assuming zero-length meetings need zero rooms
Trap Explanation:
PITFALL- Candidates confuse zero-length intervals as no room needed.
Interviewer Note:
CONTEXT- Tests handling of edge cases with zero-length intervals.
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