3rd Max.java

/*
Given an integer array nums, return the third distinct maximum number in this array. If the third maximum does not exist, return the maximum number.
*/


import java.util.Arrays;

class Solution {
    public int thirdMax(int[] nums) {
        Arrays.sort(nums);
        int n = nums.length;
        int count = 1;
        if (n<3) {
            return nums[n-1];
        }
        for (int i = n - 2; i >= 0; i--) {
            if (nums[i] != nums[i + 1]) {
                count++;
            }
            if (count==3) {
                return nums[i];
            }
        }        
        return nums[n - 1];
    }
}