Package g2401_2500.s2449_minimum_number_of_operations_to_make_arrays_similar

Class Solution

java.lang.Object
g2401_2500.s2449_minimum_number_of_operations_to_make_arrays_similar.Solution
public class Solution extends java.lang.Object
2449 - Minimum Number of Operations to Make Arrays Similar.

Hard

You are given two positive integer arrays nums and target, of the same length.

In one operation, you can choose any two distinct indices i and j where 0 <= i, j < nums.length and:

  • set nums[i] = nums[i] + 2 and
  • set nums[j] = nums[j] - 2.

Two arrays are considered to be similar if the frequency of each element is the same.

Return the minimum number of operations required to make nums similar to target. The test cases are generated such that nums can always be similar to target.

Example 1:

Input: nums = [8,12,6], target = [2,14,10]

Output: 2

Explanation: It is possible to make nums similar to target in two operations:

  • Choose i = 0 and j = 2, nums = [10,12,4].

  • Choose i = 1 and j = 2, nums = [10,14,2].

It can be shown that 2 is the minimum number of operations needed.

Example 2:

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

Output: 1

Explanation: We can make nums similar to target in one operation: - Choose i = 1 and j = 2, nums = [1,4,3].

Example 3:

Input: nums = [1,1,1,1,1], target = [1,1,1,1,1]

Output: 0

Explanation: The array nums is already similiar to target.

Constraints:

  • n == nums.length == target.length
  • 1 <= n <= 105
  • 1 <= nums[i], target[i] <= 106
  • It is possible to make nums similar to target.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    makeSimilar(int[] nums, int[] target)
     

    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

    • makeSimilar

      public long makeSimilar(int[] nums, int[] target)