class QStack:
def __init__(self):
self.data = ArrayQueue()
def __len__(self):
return len(self.data)
def is_empty(self):
return len(self) == 0
def push(self, elem): #O(1)
self.data.enqueue(elem)
def pop(self): #O(n)
if self.is_empty():
raise Exception("The QStack is empty")
helper = ArrayQueue()
for i in range(len(self) - 1):
helper.enqueue(self.data.dequeue())
val = self.data.dequeue()
self.data = helper
return val
def top(self): #O(n)
if self.is_empty():
raise Exception("The QStack is empty")
helper = ArrayQueue()
for i in range(len(self)):
val = self.data.dequeue()
helper.enqueue(val)
self.data = helper
return val
def test_pop(self): """ pop once """ test = ArrayQueue() test.push(1) test.push(2) popped = test.pop() self.assertEqual(popped, 1)
def top(self): #O(n)
if self.is_empty():
raise Exception("The QStack is empty")
helper = ArrayQueue()
for i in range(len(self)):
val = self.data.dequeue()
helper.enqueue(val)
self.data = helper
return val
def print_tree(self):
q = ArrayQueue()
q.enqueue(self.root)
while not q.empty():
n = q.dequeue()
print('[k: ' + str(n.key) + ', v: ' + str(n.value) + ']')
if n.left is not None:
q.enqueue(n.left)
if n.right is not None:
q.enqueue(n.right)
def breadth_first(self):
if (self.is_empty()):
return
line = ArrayQueue()
line.enqueue(self.root)
while (line.is_empty() == False):
curr_node = line.dequeue()
yield curr_node
if (curr_node.left is not None):
line.enqueue(curr_node.left)
if (curr_node.right is not None):
line.enqueue(curr_node.right)
def test_popAll(self): """ pop all elements""" test = ArrayQueue() test.push(1) test.push(2) test.push(3) test.push(4) test.pop() test.pop() test.pop() test.pop() self.assertEqual(test.show_array, [None, None, None, None, None, None, None, None, None, None])
def __init__(self):
self._priority_queue = LinkedQueue()
self._queue = ArrayQueue()
self._current_plane = None
self._total_plane_wait_time = 0
self._planes_served = 0
self._planes_crashed = 0
self._metrics = {
"longest_wait_takeoff": 0,
"longest_wait_landing": 0,
"served_takeoff": 0,
"served_landing": 0
}
def invert_binary_tree2(root):
if (root is None):
return
line = ArrayQueue()
line.enqueue(root)
while (line.is_empty() == False):
curr_node = line.dequeue()
curr_node.left, curr_node.right \
= curr_node.right, curr_node.left
if (curr_node.left is not None):
line.enqueue(curr_node.left)
if (curr_node.right is not None):
line.enqueue(curr_node.right)
def test_ArrayQueue():
s = ArrayQueue()
print(s.empty())
for i in range(33):
s.enqueue(i)
print('loop', i)
print(s.front())
s.print()
def breadth_first_print(self):
Q = ArrayQueue()
Q.enqueue(self.root())
while not Q.is_empty():
p = Q.dequeue()
print(p)
for c in self.children(p):
Q.enqueue(c)
def test_clear(self): test = ArrayQueue() test.push(1) test.push(2) test.push(3) self.assertEqual(test.show_array, [1, 2, 3, None, None, None, None, None, None, None]) test.clear() self.assertEqual(test.show_array, [None, None, None, None, None, None, None, None, None, None])
def breath_first(self):
from ArrayQueue import ArrayQueue
fringe = ArrayQueue()
fringe.enqueue(self.root())
while not fringe.is_empty():
p = fringe.dequeue()
yield p
for c in p.children():
fringe.enqueue(c)
def test_randomForFun(self):
"""random push/pops v.3, just making sure"""
test = ArrayQueue()
for i in range(1, 11):
test.push(i)
test.pop()
test.pop()
test.push('a')
self.assertEqual(test.show_array, ['a', None, 3, 4, 5, 6, 7, 8, 9, 10])
def test_random(self):
"""random push/pops"""
test = ArrayQueue()
for i in range(1, 11):
test.push(i)
for i in range(1, 11):
test.pop()
test.push('a')
test.push('b')
self.assertEqual(test.show_array, ['a', 'b', None, None, None, None, None, None, None, None])
def permutations(lst):
perms = ArrayStack()
parts = ArrayQueue()
combo = []
for x in range(len(lst)):
if perms.is_empty():
perms.push([lst[x]])
else:
for y in range(len(perms)):
p_lst = perms.pop()
for z in range(len(p_lst) + 1):
parts.enqueue(p_lst[:z] + [lst[x]] + p_lst[z:])
for a in range(len(parts)):
perms.push(parts.dequeue())
while not perms.is_empty():
combo.append(perms.pop())
return combo
class CheckoutManager(object):
"""CheckoutManager object for handling a collection of checkout queues that process customers.'"""
def __init__(self, n_checkouts, checkout_capacity, staging_capacity):
self.checkouts = [ArrayQueue(checkout_capacity) for _ in xrange(n_checkouts)]
self.staging_queue = ArrayQueue(staging_capacity)
self.finished_customers = []
def enqueue_random(self, customer):
"""Adds the given customer to a random checkout."""
checkout = random.choice(self.checkouts)
customer.queue(checkout)
def enqueue_shortest(self, customer):
"""Adds the given customer to the checkout with the shortest queue."""
checkout = min(self.checkouts, key=len)
customer.queue(checkout)
def enqueue_staging(self, customer):
"""Adds the customer to a staging queue. The customer will move from the staging queue to an empty checkout as
one becomes available."""
customer.queue(self.staging_queue)
def has_item(self):
"""Checks if any checkout has a customer in it, or if the staging queue has a customer in it."""
for checkout in self.checkouts:
if checkout.has_item():
return True
return False
def update(self):
"""Called once per game cycle."""
for checkout in self.checkouts:
if checkout.has_item():
if checkout[0].checked_out(): # remove finished customer
customer = checkout.dequeue()
customer.leave()
if checkout.empty() and self.staging_queue.has_item(): # add waiting customer
customer = self.staging_queue.dequeue()
customer.queue(checkout)
if checkout.has_item():
checkout[0].checkout() # checkout front customer
def is_complete(root):
if (root is None):
return True
line = ArrayQueue()
line.enqueue(root)
level = 0
while (line.is_empty() == False):
if (len(line) != 2**level):
return False
for i in range(2**level):
curr_node = line.dequeue()
if (curr_node.left is not None):
line.enqueue(curr_node.left)
if (curr_node.right is not None):
line.enqueue(curr_node.right)
level += 1
return True
def __str__(self):
str_return = ''
q_uttt = ArrayQueue()
q_uttt.enqueue(self._root)
last_depth = 0
while not q_uttt.is_empty():
child = q_uttt.dequeue()
if last_depth != child.get_depth():
str_return += "\n"
str_return += child.get_meta().get_meta_int() + ' '
last_depth = child.get_depth()
for grand_child in child.get_children():
q_uttt.enqueue(grand_child)
return str_return
def test_expandWhenFull(self):
"""when size of array is at capacity, double array"""
test = ArrayQueue()
for i in range(1, 11):
test.push(i)
self.assertEqual(test.show_array, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
test.push(11)
self.assertEqual(test.show_array, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, None, None, None, None, None, None, None, None, None])
def print_tree_level(bin_Tree, level):
output = []
if (bin_Tree.is_empty()):
return
line = ArrayQueue()
line.enqueue((bin_Tree.root, 0))
while (line.is_empty() == False):
curr = line.dequeue()
output.append(curr)
depth = curr[1]
if (curr[0].left is not None):
line.enqueue((curr[0].left, depth + 1))
if (curr[0].right is not None):
line.enqueue((curr[0].right, depth + 1))
i = 0
outputlst = []
for i in output:
if i[1] == level:
outputlst.append(i[0].data)
print(outputlst)
def bfs(self, r: int):
seen = np.zeros(self.n, np.bool_)
l = []
q = ArrayQueue()
q.add(r)
seen[r] = True
while q.size() > 0:
i = q.remove()
l.append(i)
ngh = self.out_edges(i)
for k in range(0, ngh.size()):
j = ngh.get(k)
if seen[j] == False:
q.add(j)
seen[j] = True
return l
class Company:
def __init__(self):
self._actions = ArrayQueue()
def buy(self, quantity, price):
self._actions.enqueue(Sale(quantity, price))
def sell(self, quantity, price):
gain = 0
while quantity > 0:
latest = self._actions.first()
if latest.qua <= quantity:
gain += latest.qua * (price - latest.price)
quantity -= latest.qua
self._actions.dequeue()
else:
gain += quantity * (price - latest.price)
latest.qua -= quantity
quantity = 0
return gain
def __str__(self):
return str(self._actions._data)
class MeanQueue:
def __init__(self):
self.data = ArrayQueue()
def __len__(self):
return len(self.data)
def is_empty(self):
return len(self.data) == 0
def enqueue(self, e):
if not isinstance(e, (int, float)):
raise TypeError("Item must be int or float type!")
self.data.enqueue(e)
def dequeue(self):
if self.is_empty():
raise Exception("MeanQueue is empty!")
return self.data.dequeue()
def first(self):
if self.is_empty():
raise Exception("MeanQueue is empty!")
return self.data.first()
def sum(self):
total = 0
for i in range(len(self)):
total += self.data.first()
self.data.enqueue(self.data.dequeue())
return total
def mean(self):
return self.sum() / len(self)
detailed_mode = False
filepath = None
if (len(sys.argv) == 3):
if sys.argv[1] == '--verbose':
detailed_mode = True
filepath = sys.argv[2]
elif (len(sys.argv) == 2):
filepath = sys.argv[1]
unsorted_jobs_lst = []
random_num_ind = 0
random_num_lst = loadRamdomNum()
jobs_lst = read_jobs(filepath)
Q = ArrayQueue()
cpu_can_run = True
job_incomplete = len(jobs_lst)
time = 0
run_lst = []
block_lst = []
job_is_running_time = 0 # to calc cpu utilization
job_is_blocking_time = 0 # to calc i/o utilization
if detailed_mode:
print(
"\nThis detailed printout gives the state and remaining burst for each process.\n"
)
while job_incomplete > 0:
# one time unit is one cycle
if detailed_mode:
cycle_report(time, jobs_lst)
def permutations(lst):
stack = ArrayStack()
queue = ArrayQueue()
for val in lst:
queue.enqueue([val])
while (len(lst) != len(queue.first())):
for integer in lst:
if integer not in queue.first():
stack.push([integer])
for i in range(len(stack)):
queue.enqueue(queue.first() + stack.pop())
queue.dequeue()
while queue.is_empty == False:
permuations_array.append(q.dequeue())
return permuations_array
def __init__(self, n_checkouts, checkout_capacity, staging_capacity):
self.checkouts = [ArrayQueue(checkout_capacity) for _ in xrange(n_checkouts)]
self.staging_queue = ArrayQueue(staging_capacity)
self.finished_customers = []
def __init__(self):
self.data = ArrayQueue()
def __init__(self):
ArrayQueue.__init__(self)
def __init__(self):
self._actions = ArrayQueue()
class Tower:
def __init__(self):
self._priority_queue = LinkedQueue()
self._queue = ArrayQueue()
self._current_plane = None
self._total_plane_wait_time = 0
self._planes_served = 0
self._planes_crashed = 0
self._metrics = {
"longest_wait_takeoff": 0,
"longest_wait_landing": 0,
"served_takeoff": 0,
"served_landing": 0
}
def add_to_Q(self, c):
self._queue.add(c)
def add_to_PriorityQ(self, c):
self._priority_queue.add(c)
def set_metrics(self, plane, cur_time):
"""
set class' metrics
:param plane:
:param cur_time:
"""
if plane is not None:
#check takeoff metrics
if plane.status == "Takeoff":
wait_time = cur_time - self._current_plane.arrival_time
self._metrics["longest_wait_takeoff"] += wait_time
if wait_time > self._metrics["longest_wait_takeoff"]:
self._metrics["longest_wait_takeoff"] = wait_time
#check landing metrics
if plane.status == "Landing":
wait_time = cur_time - self._current_plane.arrival_time
self._metrics["longest_wait_landing"] += wait_time
if wait_time > self._metrics["longest_wait_landing"]:
self._metrics["longest_wait_landing"] = wait_time
def check_if_complete(self, plane):
if plane is not None:
#if plane is complete
if plane.transaction_time == 0:
if plane.status == "Takeoff":
self._metrics["served_takeoff"] += 1
else:
self._metrics["served_landing"] += 1
self._current_plane = None
self._planes_served += 1
def serve_plane(self, cur_time):
"""
:param curr_time: int clock_tick
"""
if self._current_plane is None:
# No plane is being helped and queue is empty, do nothing
if self._queue.is_empty() and self._priority_queue.is_empty():
return
else:
# set the planes
try:
if len(self._priority_queue) > 0:
self._current_plane = self._priority_queue.pop()
self._current_plane.minus_fuel()
# crashed plane
if self._current_plane.fuel == 0:
self._current_plane = None
self._planes_crashed += 1
else:
if self._queue.peek() is not None:
self._current_plane = self._queue.pop()
except:
pass
self.set_metrics(self._current_plane, cur_time)
if self._current_plane is not None:
self._current_plane.serve()
self.check_if_complete(self._current_plane)
@property
def queue(self):
return self._queue
@property
def priority_queue(self):
return self._priority_queue
def __str__(self):
return_string = "\naverage time spent waiting for take off: " + str(
self._metrics["longest_wait_takeoff"] /
(round(self._metrics["served_takeoff"] + 1, 3)))
return_string += "\naverage time spent waiting for to land: " + str(
self._metrics["longest_wait_landing"] /
round(self._metrics["served_landing"] + 1, 3))
return_string += "\nlongest time spent waiting for take off: " + str(
self._metrics["longest_wait_takeoff"])
return_string += "\nlongest time spent waiting for to land: " + str(
self._metrics["longest_wait_landing"])
return_string += "\nPlanes Crashed: " + str(self._planes_crashed)
return_string += "\nPlanes served: " + str(self._planes_served)
return_string += f"\nPlanes in queues {len(self._priority_queue) + len(self._queue)}"
return return_string
# What is the average time spent waiting for take off?
# What is the average time spent waiting to land?
# What is the longest time spent waiting for take off?
# What is the longest time spent waiting to land?
# How many planes crashed?
# print(f"{len(tower.priority_queue)} {len(tower.queue)}")
# How many planes total took off and landed during the simulation?
from ArrayQueue import ArrayQueue
from LoopQueue import LoopQueue
from time import time
from random import randint
def test_enqueue(queue, op_count):
start_time = time()
for i in range(op_count):
queue.enqueue(randint(1, 2000))
return time() - start_time
def test_dequeue(queue, op_count):
start_time = time()
for i in range(op_count):
queue.dequeue()
return time() - start_time
op_count = 10000
array_queue = ArrayQueue()
loop_queue = LoopQueue()
print('ArrayQueue enqueue: ', test_enqueue(array_queue, op_count))
print('LoopQueue enqueue: ', test_enqueue(loop_queue, op_count))
print('ArrayQueue dequeue: ', test_dequeue(array_queue, op_count))
print('LoopQueue dequeue: ', test_dequeue(loop_queue, op_count))
def setUp(self):
self.queues = []
self.queues.append(LinkedQueue())
self.queues.append(ArrayQueue(0, 3))
self.queues.append(IntQueue(2))