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questions4.py
87 lines (73 loc) · 2.22 KB
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questions4.py
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####################################################################
####################################################################
####################################################################
from stacks import Stack
maxStack = 2
class SetOfStacks:
def __init__(self):
self.currentStack = []
self.stacks = []
def push(self, item):
if len(self.currentStack) < maxStack:
if len(self.currentStack) == 0:
self.stacks.append(self.currentStack)
self.currentStack.append(item)
return self.stacks
else:
self.currentStack = [item]
self.stacks.append(self.currentStack)
return self.stacks
def pop(self):
return self.currentStack.pop()
def peek(self):
return self.currentStack[len(self.currentStack)-1]
def sizeOfCurrentStack(self):
return len(self.currentStack)
def numberOfStacks(self):
return len(self.stacks)
def popAtIndex(self, index):
if index < len(self.stacks):
return self.stacks[index].pop()
else:
return 'NOPE'
def peekStacks(self):
return self.stacks
def sortAscendingOrder(s1):
s2 = Stack()
while not s1.isEmpty():
# print 'S2:', s2.stack()
# print 'S1:', s1.stack()
last = s1.pop()
while (not s2.isEmpty() and s2.peek() > last):
s1.push(s2.pop())
s2.push(last)
return s2
class Animal:
def __init__(self, animal):
self.type = animal
self.order = 0
def getType(self):
return self.type
def getOrder(self):
return self.getOrder()
class AnimalShelter:
def __init__(self):
self.dogs = []
self.cats = []
self.total = []
def enqueue(self, animal):
if animal.getType() == 'dogs':
self.dogs.append(animal)
else:
self.cats.append(animal)
self.total.append(animal)
def dequeueAny(self):
return self.total.pop()
def dequeueDog(self):
return self.dogs.pop()
def dequeueCat(self):
return self.cats.pop()
def getShelter(self):
return self.total
def getDogs(self):
return self.dogs