253. Meeting Rooms II

[ryoooooory]

問題：https://leetcode.com/problems/meeting-rooms-ii/

プレミアムなので問題文掲載

Given an array of meeting time intervals intervals where intervals[i] = [starti, endi], return the minimum number of conference rooms required.

Example 1:

Input: intervals = [[0,30],[5,10],[15,20]]
Output: 2
Example 2:

Input: intervals = [[7,10],[2,4]]
Output: 1