Class Solution


  • public class Solution
    extends Object
    1854 - Maximum Population Year.

    Easy

    You are given a 2D integer array logs where each logs[i] = [birthi, deathi] indicates the birth and death years of the ith person.

    The population of some year x is the number of people alive during that year. The ith person is counted in year x’s population if x is in the inclusive range [birthi, deathi - 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 <= birthi < deathi <= 2050
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • maximumPopulation

        public int maximumPopulation​(int[][] logs)