added rotate_array function

Author: arvinder004

data_structures/arrays/rotate_array.py

@@ -0,0 +1,25 @@
+def rotate_array(arr, k):
+    """
+    Rotates the array to the right by k steps
+
+    Args:
+        arr(list): The input array
+        k(int): Number of steps to rotate
+
+    Returns:
+        list: Rotated array
+    """
+    n = len(arr)
+    k = k % n if n else 0
+
+    arr.reverse()  # Reverse the entire array
+    arr[:k] = reversed(arr[:k])  # Reverse the first k elements
+    arr[k:] = reversed(arr[k:])  # Reverse the last (n-k) elements
+
+    return arr
+
+
+if __name__ == "__main__":
+    arr = [1, 2, 3, 4, 5, 6, 7, 8]
+    k = 3
+    print("Rotated array: ", rotate_array(arr, k))