Data Structures, Data Engineering, Arrays, Algorithms, Data Science.
day.") def lookup_sales(day): if day in days: index = days.index(day) print(f"Sales for {day}: {sales[index]}") else: print("Invalid day.") # Example usage: print_sales_data() insert_sales("Wednesday", 18) delete_sales("Friday") update_sales("Monday", 11) lookup_sales("Monday") print_sales_data()