UpstartOA #2
Filter Odds and Reverse Evens
估计简单评测数据准备中，可先阅读题面
考点（AI 标注）原地数组
You are given an integer array nums.
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Constraints
1 ≤ nums.length ≤ 2 * 10⁵-10⁹ ≤ nums[i] ≤ 10⁹
Example 1
Input:
nums = [1, 2, 3, 4, 6]
Output:
[6, 4, 2]
Explanation:
After removing odd values, the remaining array is [2, 4, 6]. Reversing it gives [6, 4, 2].
Example 2
Input:
nums = [7, 9, 11]
Output:
[]
Explanation: Every value is odd, so the result is empty.