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$ curl repovive.com/roadmaps/pattern-22/intervals/meeting-rooms-implementation

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$ curl repovive.com/roadmaps/pattern-22/intervals/meeting-rooms-implementation

Repovive

LeetCode 252 Meeting Rooms - Implementation - Intervals | Pattern 22: LeetCode Interview Patterns | Repovive

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Pattern 22: LeetCode Interview Patterns24 sections · 736 units32h total

Open in Course

LeetCode 252 Meeting Rooms - Implementation

The approach

Sort by start time. Check adjacent pairs for overlap.

def canAttendMeetings(intervals): intervals.sort(key=lambda x: x[0])

for i in range(1, len(intervals)):
    if intervals[i][0] < intervals[i - 1][1]:
        return False

return True

$O(n \log n)$ time, $O(1)$ extra space.