Package g0401_0500.s0414_third_maximum_number

Class Solution

java.lang.Object
g0401_0500.s0414_third_maximum_number.Solution
public class Solution extends java.lang.Object
414 - Third Maximum Number.

Easy

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.

Example 1:

Input: nums = [3,2,1]

Output: 1

Explanation: The first distinct maximum is 3. The second distinct maximum is 2. The third distinct maximum is 1.

Example 2:

Input: nums = [1,2]

Output: 2

Explanation: The first distinct maximum is 2. The second distinct maximum is 1. The third distinct maximum does not exist, so the maximum (2) is returned instead.

Example 3:

Input: nums = [2,2,3,1]

Output: 1

Explanation: The first distinct maximum is 3. The second distinct maximum is 2 (both 2’s are counted together since they have the same value). The third distinct maximum is 1.

Constraints:

  • 1 <= nums.length <= 104
  • -231 <= nums[i] <= 231 - 1

Follow up: Can you find an O(n) solution?

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    thirdMax(int[] nums)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • thirdMax

      public int thirdMax(int[] nums)