## Merge Sorted Array

Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.

### Examples

```text
Input:
nums1 = [1,2,3,0,0,0], m = 3
nums2 = [2,5,6],       n = 3

Output: [1,2,2,3,5,6]
```

### Constraints

- `-10^9 <= nums1[i], nums2[i] <= 10^9`
- `nums1.length == m + n`
- `nums2.length == n`

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### Notes

- The number of elements initialized in nums1 and nums2 are m and n respectively.
- You may assume that nums1 has enough space (size that is **equal** to m + n) to hold additional elements from nums2.