source: https://leetcode.com/problems/data-stream-as-disjoint-intervals/description/ Data Stream as Disjoint Intervals Given a data stream input of non-negative integers a1, a2, …, an, summarize the numbers seen so far as a list of disjoint intervals. Implement the SummaryRanges class: SummaryRanges() Initializes the object with an empty stream. void addNum(int value) Adds the integer value to the stream. int[][] getIntervals() ...