You are given a 2D integer array logs
where each logs[i] = [birth_{i}, death_{i}]
indicates the birth and death years of the i^{th}
person.
The population of some year x
is the number of people alive during that year. The i^{th}
person is counted in year x
's population if x
is in the inclusive range [birth_{i}, death_{i}  1]
. Note that the person is not counted in the year that they die.
Return the earliest year with the maximum population.
Example 1:
Input: logs = [[1993,1999],[2000,2010]]
Output: 1993
Explanation: The maximum population is 1, and 1993 is the earliest year
with this population.
Example 2:
Input: logs = [[1950,1961],[1960,1971],[1970,1981]]
Output: 1960
Explanation:
The maximum population is 2, and it had happened in years 1960 and 1970.
The earlier year between them is 1960.
Constraints:
1 <= logs.length <= 100
1950 <= birth_{i} < death_{i} <= 2050

