Minimum Operations to Make Array Parity Alternating

Description

You are given an integer array nums.

An array is called parity alternating if for every index i where 0 <= i < n - 1, nums[i] and nums[i + 1] have different parity (one is even and the other is odd).

In one operation, you may choose any index i and either increase nums[i] by 1 or decrease nums[i] by 1.

Return an integer array answer of length 2 where:

- answer[0] is the minimum number of operations required to make the array parity alternating.

- answer[1] is the minimum possible value of max(nums) - min(nums) taken over all arrays that are parity alternating and can be obtained by performing exactly answer[0] operations.

An array of length 1 is considered parity alternating.