Given a list of processes that can run in parallel. Each process is represented by a triplet [id, startTime, endTime].
A process's exclusive time is the time spent to execute this process. Note that this does not include the time while multiple processes run simultaneously. Return the exclusive time of each process in the form [id, duration].
Example 1:
Input: [[1, 150, 300], [2, 100, 200], [3, 300, 350]]
Output: [[1, 100], [2, 50], [3, 50]]
Explanation:
