Question

IN PYTHON

When you use an automated teller machine (ATM) with your bank card, you need to use a personal identification number (PIN) to access your account. If a user fails more than three times when entering the PIN, the machine will block the card. Assume that the user’s PIN is “1234” and write a program that asks the user for the PIN no more than three times, and does the following:

•If the user enters the right number, print a message saying, “Your PIN is correct”, and end the program.

•If the user enters a wrong number, print a message saying, “Your PIN is incorrect” and, if you have asked for the PIN less than three times, ask for it again.

•If the user enters a wrong number three times, print a message saying “Your bank card is blocked” and end the program.

Answer 1

PIN = 1234 # user PIN
attempt = 3 # maximum number of attempts

input_PIN = int (input ("Enter Your PIN : ")) # taking PIN from user
attempt -= 1 # decrement the number of attempts after every input

while (attempt > 0) : # Run the while loop until user enters correct PIN or exceeds maximum attempts
  
if (input_PIN == PIN) : # if PIN is correct then exit from loop
print("Your PIN is correct")
break
  
if (input_PIN != PIN) : # if PIN is incorrect then decrement the number of attempts
print("Your PIN is incorrect")
input_PIN = int (input ("Enter Your PIN : "))
attempt -= 1
  
if (attempt == 0) : # if user exceeds maximum attempts then block the card
print("Your bank card is blocked")