Meeting Rooms II

You are given an array of meeting time intervals `intervals` where `intervals[i] = [starti, endi]` represents the start and end times of the `i`th meeting. All meetings are scheduled in the same building, and a meeting can use any available conference room. Your task is to determine the **minimum number of conference rooms required** so that all meetings can take place without any overlaps (i.e., no two meetings are scheduled in the same room at the same time). Return _the minimum number of conference rooms required_. **Constraints:** - `1 <= intervals.length <= 10^4` - `0 <= starti < endi <= 10^6`