Meeting Rooms II

Given an array of meeting time intervals `intervals` where `intervals[i] = [start_i, end_i]`, return the minimum number of conference rooms required. ### Constraints - `0 <= intervals.length <= 10^4` - `intervals[i].length == 2` - `0 <= start_i < end_i <= 10^6` ### Input Format - Line 1: An integer `n` representing the number of intervals. - The next `n` lines: Two space-separated integers `start end`. ### Output Format Print the minimum number of meeting rooms required.