Intervals pattern

Meeting Rooms II

Given meeting time intervals, return the minimum number of conference rooms required, the maximum number of meetings that overlap at any single moment. Watch it run step by step, then write your own pseudocode and get it checked by AI.

  • LeetCode 253
  • Medium
  • 1 approach

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IntervalsLeetCode 253

Medium

The approach

  1. 01 Chronological sweep (events) O(n log n)O(n) space
Played step by step, with its time and space.

What you will learn

  • How to read Meeting Rooms II and spot the intervals pattern in it
  • Chronological sweep (events): O(n log n) time, O(n) space
  • The pseudocode for each approach, its line lit as the animation runs
  • Practice: write your own pseudocode and get it checked

More Intervals

See Meeting Rooms II run, step by step

Sign in and this page opens on the animation, with all 5 Intervals problems beside it.

DSA comes with the all labs plan and every ChaiCode batch.