Medium · Hash Maps
Find year with most population
Given a non-empty list of people as [birth, death] year pairs, where each person counts as alive in every year from birth through death inclusive, return the earliest year in which the largest number of people were alive.
Examples
Example 1
[[1993,1999],[2000,2010]]Output: year 1993
Example 2
[[1950,1961],[1960,1971],[1960,1971]]Output: year 1960
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