Reverse `nums` **in-place** and return the mutated array. Variant **#8**.
Example 1
Input: nums = [8,9,10,11,12,13,14,15,16,17,18]
Output: [18,17,16,15,14,13,12,11,10,9,8]
Constraints
Acceptance: 70% · Topics: array, two-pointers
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