Package g2301_2400.s2366_minimum_replacements_to_sort_the_array

Class Solution

java.lang.Object
g2301_2400.s2366_minimum_replacements_to_sort_the_array.Solution
public class Solution extends java.lang.Object
2366 - Minimum Replacements to Sort the Array.

Hard

You are given a 0-indexed integer array nums. In one operation you can replace any element of the array with any two elements that sum to it.

  • For example, consider nums = [5,6,7]. In one operation, we can replace nums[1] with 2 and 4 and convert nums to [5,2,4,7].

Return the minimum number of operations to make an array that is sorted in non-decreasing order.

Example 1:

Input: nums = [3,9,3]

Output: 2

Explanation: Here are the steps to sort the array in non-decreasing order:

  • From [3,9,3], replace the 9 with 3 and 6 so the array becomes [3,3,6,3]

  • From [3,3,6,3], replace the 6 with 3 and 3 so the array becomes [3,3,3,3,3]

There are 2 steps to sort the array in non-decreasing order. Therefore, we return 2.

Example 2:

Input: nums = [1,2,3,4,5]

Output: 0

Explanation: The array is already in non-decreasing order. Therefore, we return 0.

Constraints:

  • 1 <= nums.length <= 105
  • 1 <= nums[i] <= 109

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    minimumReplacement(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

    • minimumReplacement

      public long minimumReplacement(int[] nums)