Exercise 06-10:
Modify Program 6.11 to show how many tickets were sold in each room. Use a list that is the same size as the number of rooms and count the number of tickets sold in each room using its elements as counters. Print the total sales at the end of the program on the screen.
Answer:
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# Python From Scratch
# Author: Nilo Ney Coutinho Menezes
# Editora Novatec (c) 2010-2025 - LogiKraft 2025
# Site: https://pythonfromscratch.com
# ISBN: 978-85-7522-949-1 (Paperback), 978-85-7522-950-7 (hardcover), 978-85-7522-951-4 (ebook)
#
# File: chapter 06/exercise-06-14.py.py
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available_seats = [10, 2, 1, 3, 0]
sold = [0] * len(available_seats)
while True:
room = int(input("Room (0 to exit): "))
if room == 0:
print("End")
break
if room > len(available_seats) or room < 1:
print("Invalid room")
elif available_seats[room - 1] == 0:
print("Sorry, room is full!")
else:
seats = int(
input(
f"How many seats do you want ({available_seats[room - 1]} available):"
)
)
if seats > available_seats[room - 1]:
print("That number of seats is not available.")
elif seats < 0:
print("Invalid number")
else:
available_seats[room - 1] -= seats
sold[room - 1] += seats
print(f"{seats} seats sold")
print("\nRoom utilization")
for room, available in enumerate(available_seats):
print(f"Room {room + 1} – {available} seat(s) available")
print("\nSales by room")
total_sold = 0
for room, sales in enumerate(sold):
print(f"Room {room + 1} – {sales} ticket(s) sold")
total_sold += sales
print(f"Total tickets sold: {total_sold}")