Question

Write a Python program to accept 10 integers from the user. If the entered number is a three-digit even integer, push it onto a stack. After all inputs are taken, pop all the three-digit even integers from the stack and display them. For example, if the user enters 12, 31, 320, 457, 6, 92, 924, 220, 1, 218, then the stack should contain:

320, 924, 220, 218

and the output of the program should be:

218 220 924 320

Answer 1

# Initialize an empty stack
stack = []

# Accept 10 integers from the user
for i in range(10):
    num = int(input("Enter an integer: "))
    
    # Check if number is 3-digit (100-999) and even
    if 100 <= num <= 999 and num % 2 == 0:
        stack.append(num)

# Pop and display all elements from the stack
print("The output is:")
while len(stack) > 0:
    print(stack.pop(), end=" ")