Package g2701_2800.s2779_maximum_beauty_of_an_array_after_applying_operation

Class Solution

java.lang.Object
g2701_2800.s2779_maximum_beauty_of_an_array_after_applying_operation.Solution
public class Solution extends java.lang.Object
2779 - Maximum Beauty of an Array After Applying Operation.

Medium

You are given a 0-indexed array nums and a non-negative integer k.

In one operation, you can do the following:

  • Choose an index i that hasn’t been chosen before from the range [0, nums.length - 1].
  • Replace nums[i] with any integer from the range [nums[i] - k, nums[i] + k].

The beauty of the array is the length of the longest subsequence consisting of equal elements.

Return the maximum possible beauty of the array nums after applying the operation any number of times.

Note that you can apply the operation to each index only once.

A subsequence of an array is a new array generated from the original array by deleting some elements (possibly none) without changing the order of the remaining elements.

Example 1:

Input: nums = [4,6,1,2], k = 2

Output: 3

Explanation:

In this example, we apply the following operations:

  • Choose index 1, replace it with 4 (from range [4,8]), nums = [4,4,1,2].

  • Choose index 3, replace it with 4 (from range [0,4]), nums = [4,4,1,4].

After the applied operations, the beauty of the array nums is 3 (subsequence consisting of indices 0, 1, and 3).

It can be proven that 3 is the maximum possible length we can achieve.

Example 2:

Input: nums = [1,1,1,1], k = 10

Output: 4

Explanation:

In this example we don’t have to apply any operations.

The beauty of the array nums is 4 (whole array).

Constraints:

  • 1 <= nums.length <= 105
  • 0 <= nums[i], k <= 105

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    maximumBeauty(int[] nums, int k)
     

    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

    • maximumBeauty

      public int maximumBeauty(int[] nums, int k)