Data Structures, Data Engineering, Arrays, Algorithms, Data Science.
# Output: [10, 20, 40] 3. Update: arr = [10, 20, 30, 40] arr[2] = 35 print(arr) # Output: [10, 20, 35, 40] 4. Swapping: arr = [10, 20, 30, 40] arr[1], arr[3] = arr[3], arr[1] print(arr) # Output: [10, 40, 30, 20] Traversal: Iterating through all elements is a foundational operation. For Loop: arr =