Given an array of meeting time intervals consisting of start and end times
[[s1,e1],[s2,e2],...]
(s
i
< e
i
), find the minimum number of conference rooms required.
Example 1:
Input:
[[0, 30],[5, 10],[15, 20]]
Output:
2
Example 2:
Input: [[7,10],[2,4]] Output: 1
NOTE: input types have been changed on April 15, 2019. Please reset to default code definition to get new method signature.