Running Interval Union Length
Google● MediumINTERNONSITE INTERVIEWProblem statement
Intervals arrive one at a time in uploads. Each row [left, right] represents the half-open interval [left, right).
The problem statement continues
ProExamples
Example 1
uploads = [[1,5],[7,10],[3,8],[8,9]]return = [4,7,9,9]The first two intervals cover lengths 4 and 3. Uploading [3,8) joins them into [1,10), whose length is 9. The final interval is already covered.
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