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:
nums[i] = nums[i] + 2 andnums[j] = nums[j] - 2.Two arrays are considered to be similar if the frequency of each element is the same.
\n\nReturn 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.
\n
Example 1:
\n\n\nInput: nums = [8,12,6], target = [2,14,10]\nOutput: 2\nExplanation: It is possible to make nums similar to target in two operations:\n- Choose i = 0 and j = 2, nums = [10,12,4].\n- Choose i = 1 and j = 2, nums = [10,14,2].\nIt can be shown that 2 is the minimum number of operations needed.\n\n\n
Example 2:
\n\n\nInput: nums = [1,2,5], target = [4,1,3]\nOutput: 1\nExplanation: We can make nums similar to target in one operation:\n- Choose i = 1 and j = 2, nums = [1,4,3].\n\n\n
Example 3:
\n\n\nInput: nums = [1,1,1,1,1], target = [1,1,1,1,1]\nOutput: 0\nExplanation: The array nums is already similiar to target.\n\n\n
\n
Constraints:
\n\nn == nums.length == target.length1 <= n <= 1051 <= nums[i], target[i] <= 106nums similar to target.给你两个正整数数组 nums 和 target ，两个数组长度相等。
在一次操作中，你可以选择两个 不同 的下标 i 和 j ，其中 0 <= i, j < nums.length ，并且：
nums[i] = nums[i] + 2 且nums[j] = nums[j] - 2 。如果两个数组中每个元素出现的频率相等，我们称两个数组是 相似 的。
\n\n请你返回将 nums 变得与 target 相似的最少操作次数。测试数据保证 nums 一定能变得与 target 相似。
\n\n
示例 1：
\n\n\n输入：nums = [8,12,6], target = [2,14,10]\n输出：2\n解释：可以用两步操作将 nums 变得与 target 相似：\n- 选择 i = 0 和 j = 2 ，nums = [10,12,4] 。\n- 选择 i = 1 和 j = 2 ，nums = [10,14,2] 。\n2 次操作是最少需要的操作次数。\n\n\n
示例 2：
\n\n\n输入：nums = [1,2,5], target = [4,1,3]\n输出：1\n解释：一步操作可以使 nums 变得与 target 相似：\n- 选择 i = 1 和 j = 2 ，nums = [1,4,3] 。\n\n\n
示例 3：
\n\n\n输入：nums = [1,1,1,1,1], target = [1,1,1,1,1]\n输出：0\n解释：数组 nums 已经与 target 相似。\n\n\n
\n\n
提示：
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