Added rotate_array.py

Author: davidw1281

data_structures/arrays/rotate_array.py

@@ -58,7 +58,8 @@ def rotate_array_n_space(nums: list[int], k: int) -> list[int]:
     >>> rotate_array_n_space([8, -7, 22, -6], 9)
     [-6, 8, -7, 22]
     """
-
+    length = len(nums)
+    k = k % length
     return nums[-k:] + nums[:k]