Package g2201_2300.s2216_minimum_deletions_to_make_array_beautiful

Class Solution

  • public class Solution
extends Object
    2216 - Minimum Deletions to Make Array Beautiful.

    Medium

    You are given a 0-indexed integer array nums. The array nums is beautiful if:

    • nums.length is even.
    • nums[i] != nums[i + 1] for all i % 2 == 0.

    Note that an empty array is considered beautiful.

    You can delete any number of elements from nums. When you delete an element, all the elements to the right of the deleted element will be shifted one unit to the left to fill the gap created and all the elements to the left of the deleted element will remain unchanged.

    Return the minimum number of elements to delete from nums to make it beautiful.

    Example 1:

    Input: nums = [1,1,2,3,5]

    Output: 1

    Explanation: You can delete either nums[0] or nums[1] to make nums = [1,2,3,5] which is beautiful. It can be proven you need at least 1 deletion to make nums beautiful.

    Example 2:

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

    Output: 2

    Explanation: You can delete nums[0] and nums[5] to make nums = [1,2,2,3] which is beautiful. It can be proven you need at least 2 deletions to make nums beautiful.

    Constraints:

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

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail

      • minDeletion

        public int minDeletion​(int[] nums)