Question

Goal: Write a Python program to implement an airport take-offldeparture simulator Proiect: Consider the following tables which contain, for each airline, a queue of flights boarded and ready to take-off from BWI. Airline Flight # Destination Gate # American 127 American 322 American 233 American 742 American 112 American 437 DCA BUF 10 12 13 14 15 CAE LGA Airline Flight # 1 Destination Gate # Delta 221 SFO DET CVG SAN 20 21 Delta 348 Delta 765 Delta 612 23 24 Delta 148 Airline Flight # Destination Gate # Southwest 345 Southwest65 Southwest 211 Southwes 324 Southwest 367 Southwest 311 Southwest 375 LGA PHL BOS SFO SAN 40 41 42 43 45 Tables of Departing Flights from BWI for American, Delta and Southwest Airlines

Answer 1

import random
import time

class Node:
def __init__(self, data):
self.data = data
self.next = None

class Queue:
def __init__(self):
self.head = None
self.last = None

def enqueue(self, data):
if self.last is None:
self.head = Node(data)
self.last = self.head
else:
self.last.next = Node(data)
self.last = self.last.next

def dequeue(self):
if self.head is None:
return None
else:
to_return = self.head.data
self.head = self.head.next
return to_return

def getdata(self):
temp = self.head
Data = list()
while temp is not None:
Data.append(temp.data)
# print(temp.data)
temp = temp.next

return Data

def sizequeue(self):
temp = self.head
count = 0
while temp is not None:
count = count + 1
temp = temp.next

return count

def top(self):
return self.head.data

American = Queue()
Delta = Queue()
Southwest = Queue()
Runway = Queue()

American.enqueue(["American",127,"DCA",10])
American.enqueue(["American",322,"BUF",11])
American.enqueue(["American",233,"FLL",12])
American.enqueue(["American",742,"LAX",13])
American.enqueue(["American",112,"CAE",14])
American.enqueue(["American",437,"LGA",15])

Delta.enqueue(["Delta",221,"SFO",20])
Delta.enqueue(["Delta",348,"DET",21])
Delta.enqueue(["Delta",765,"CVG",22])
Delta.enqueue(["Delta",612,"SAN",23])
Delta.enqueue(["Delta",148,"FLL",24])

Southwest.enqueue(["Southwest",345,"LGA",40])
Southwest.enqueue(["Southwest",657,"PHL",41])
Southwest.enqueue(["Southwest",211,"BOS",42])
Southwest.enqueue(["Southwest",324,"SFO",43])
Southwest.enqueue(["Southwest",367,"SAN",44])
Southwest.enqueue(["Southwest",311,"LAX",45])
Southwest.enqueue(["Southwest",375,"FLL",46])

def Every2sec():
x = random.random()

Asize = American.sizequeue()
Dsize = Delta.sizequeue()
Ssize = Southwest.sizequeue()

if Asize == 0 and Dsize == 0 and Ssize == 0:
return False
if Asize and Dsize and Ssize:
if x >= 0 and x <= .33:
a = American.dequeue()
elif x > .33 and x <= .67:
a = Delta.dequeue()
else:
a = Southwest.dequeue()
else:
if Asize and Dsize:
if x >= 0 and x <= .5:
a = American.dequeue()
else:
a = Delta.dequeue()
elif Dsize and Ssize:
if x >= 0 and x <= .5:
a = Delta.dequeue()
else:
a = Southwest.dequeue()
elif Asize and Ssize:
if x >= 0 and x <= .5:
a = American.dequeue()
else:
a = Southwest.dequeue()
else:
if Asize:
a = American.dequeue()
elif Dsize:
a = Delta.dequeue()
else:
a = Southwest.dequeue()

print("Flight " + str(a[1]) + " of " + str(a[0]) + " airlines is added to Runway Queue ")
Runway.enqueue(a)

def Every4sec_takeoff():
  
y = random.random()

if y >= 0 and y <= .5:
a = Runway.dequeue()
print("Flight " + str(a[1]) + " of " + str(a[0]) + " airlines took off")
else:
a = Runway.top()
print("Flight " + str(a[1]) + " of " + str(a[0]) + " airlines is waiting")

if Runway.sizequeue() == 0:
print("All flights have taken off")
return True
Data = Runway.getdata()

print()
print("List of all flight currently in Runway queue")
print("###################################")
print("Airlines","Flight#","Destination","Gate#")
for i in Data:
print(str(i[0]) + " " + str(i[1]) + " " + str(i[2])+ " " +str(i[3]))
print("-----------------------------------")
return False

def Every4sec_cancel():
z = random.randint(1,100) / 100
a = None
if z >= 0 and z <= .1:
if American.sizequeue() == 0:
print("American airline queue Empty, no need to cancel a flight")
else:
a = American.dequeue()

if z >= .50 and z <= .60:
if Delta.sizequeue() == 0:
print("Delta airline queue Empty, no need to cancel a flight")
else:
a = Delta.dequeue()

if z >= .80 and z <= .90:
if Southwest.sizequeue() == 0:
print("Southwest airline queue Empty, no need to cancel a flight")
else:
a = Southwest.dequeue()

if a is not None:
print(str(a[0]) + " airlines flight no " + str(a[1]) + " travelling to " + str(a[2]) + " is cancelled")

while True:
  
time.sleep(2)
Every2sec()

time.sleep(2)
Every2sec()
if Every4sec_takeoff() == True:
break;
Every4sec_cancel()