Intervals - Meeting Rooms I
Identify the subtle bug in the following code that attempts to check if a person can attend all meetings.
Identify the subtle bug in the following code that attempts to check if a person can attend all meetings.
medium🐞 Bug Identification Q7 of Q15
Step-by-Step Solution
Solution:
Step 1: Analyze overlap condition
Using <= means intervals that end exactly when next starts are considered overlapping.Step 2: Understand meeting touching semantics
Meetings that end at time t and next starts at t do not overlap, so condition should be < not <=.Final Answer:
Option A -> Option AQuick Check:
Condition incorrectly flags touching meetings as overlapping [OK]
Quick Trick: Overlap if start < previous end, not <= [OK]
Common Mistakes:
MISTAKES- Using <= causing false positives
- Ignoring sorting step
Trap Explanation:
PITFALL- Candidates often confuse inclusive vs exclusive overlap conditions.
Interviewer Note:
CONTEXT- Tests attention to boundary conditions in overlap detection.
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