Answer:
def countdown(n):
if n <= 0:
print('Blastoff!')
else:
print(n)
countdown(n-1)
def countup(n):
if n >= 0:
print('Blastoff!')
else:
print(n)
countup(n+1)
number = int(input("Enter a number: "))
if number >= 0:
countdown(number)
elif number < 0:
countup(number)
<u>Outputs:</u>
Enter a number: 3
3
2
1
Blastoff!
Enter a number: -3
-3
-2
-1
Blastoff!
Enter a number: 0
Blastoff!
For the input of zero, the countdown function is called.
Explanation:
Copy the countdown function
Create a function called countup that takes one parameter, n. The function counts up from n to 0. It will print the numbers from n to -1 and when it reaches 0, it will print "Blastoff!".
Ask the user to enter a number
Check if the number is greater than or equal to 0. If it is, call the countdown function. Otherwise, call the countup function.
Answer: Insertion steganography
Explanation: Insertion steganography is the way of encrypting the data with the help of a regular files and message. It is encrypted by the ordinary files because the identification of files can be neglected. This process is carried out just for the protection purpose in extra form and gets decrypted in the destination port .It has the working based on the replacement of the bits in a file .
Answer:
1. Design system to avoid theatre tickets selling issue.
2. Resources provided to student who can built a system for the theatre tickets booking.
3. Medallion Theatre Booking System
Add/edit patron
Add/edit production
Add/edit performance
Add/edit seats
Purchase tickets
Generate Tickets Sold Report
4.GUI or graphical user interface allows the user to connect through graphical icons.
Explanation:
The main purpose is to avoid problems of duplicate tickets sales in future. The system will enable the selling of each seat to one customer only and when an attempt is made to resold the seat the system warns the user creating a check for original sale. This will help theatre to avoid any issues in future and customers will be happy with their ease of confirmation of booking.
False. a placeholder can hold everything
