class ArrayStack:
#implements the ADT Stack (Stack.py)
#uses the DynamicArray class (DynamicArray.py)
def __init__( self ):
self._A = DynamicArray()
def __len__( self ):
return len( self._A )
def is_empty( self ):
return len( self._A ) == 0
def __str__( self ):
pp = str( self._A )
pp += "[top = " + str( len( self._A ) - 1 ) + ")"
return pp
#push obj
def push( self, obj ):
self._A.append( obj )
#pop
def pop( self ):
return self._A.remove( len( self._A ) )
#top
def top( self ):
return self._A.get( len( self._A ) )
class ArrayStack:
#implements the ADT Stack (Stack.py)
#uses the DynamicArray class (DynamicArray.py)
def __init__(self):
self._A = DynamicArray()
def __len__(self):
return len(self._A)
def is_empty(self):
return len(self._A) == 0
def __str__(self):
pp = str(self._A)
pp += "[top = " + str(len(self._A) - 1) + ")"
return pp
#push obj
def push(self, obj):
self._A.append(obj)
#pop
def pop(self):
return self._A.remove(len(self._A))
#top
def top(self):
return self._A.get(len(self._A))
class Stack:
def __init__(self):
self.list = DynamicArray(None)
def clear(self) -> None:
self.list.remove_all_element()
return None
def is_empty(self):
return self.list.is_empty()
def size(self):
return self.list.get_size()
def push(self, element):
self.list.add_last(element)
def pop(self):
return self.list.remove(self.list.size - 1)
def top(self):
return self.list.get(self.size() - 1)
def travel(self):
self.list.print_array()
class ArrayList(List):
# implémente l'ADT List (List.py)
# utilise la classe DynamicArray (DynamicArray.py)
def __init__(self):
self._A = DynamicArray()
# retourne le nombre d'éléments
def __len__(self):
return len(self._A)
# retourne une chaîne de caractères représentant la liste
def __str__(self):
return str(self._A)
# accès avec notation des crochets
def __getitem__(self, k):
return self._A[k]
# ajoute l'élément obj à la fin de la liste
def append(self, obj):
self._A.append(obj)
# retire le ième élément de la liste
def remove(self, i):
return self._A.remove(i)
# retourne l'index de l'élément obj s'il existe
def find(self, obj):
return self._A.find(obj)
class ArrayList:
#implements the ADT List (List.py)
#uses the DynamicArray class (DynamicArray.py)
def __init__( self ):
self._A = DynamicArray()
def __len__( self ):
return len( self._A )
def __str__( self ):
return str( self._A )
def __getitem__( self, k ):
return self._A[k]
#append at the end of the list
def append( self, obj ):
self._A.append( obj )
#remove the ith element of the list
def remove( self, i ):
if len( self._A ) == 0:
return False
else:
self._A.remove( i )
return True
#return the rank of obj in the list
def find( self, obj ):
return self._A.find( obj )
def test_to_list(self):
da = DynamicArray()
self.assertEqual(da.to_list(), [])
da.add(1)
self.assertEqual(da.to_list(), [1])
da.add(2)
self.assertEqual(da.to_list(), [1, 2])
def test_size(self):
da = DynamicArray()
self.assertEqual(da.size(), 0)
da.add(1)
self.assertEqual(da.size(), 1)
da.add(2)
self.assertEqual(da.size(), 2)
def test_pop_len(self):
a = DynamicArray()
a.append(2)
a.append(1)
a.append(4)
a.append(6)
a.pop()
assert len(a) == 3
class Stack(object):
# The __init__ function is run when you instantiate an instance of this object
def __init__(self):
self._size = 0
self._dynamic_array = DynamicArray()
#################################
## DO YOUR WORK BELOW THIS LINE #
#################################
# Return whether or not the stack is empty
def is_empty(self):
#TODO: return True or False to answer if the stack is empty
if self._size == 0:
return True
# Return the size on the stack
def size(self):
#TODO: return the current size of the stack
return self._size
# look at the top of the stack (but don't remove)
def top(self):
#TODO: return the current top of the stack
return self._dynamic_array.get(self._size - 1)
# Push a value on to the top of the stack
def push(self, value):
#TODO: push the pased value onto the stack
self._dynamic_array.add(value)
self._size += 1
# take the top value off of the stack and return it to the user
def pop(self):
#TODO: pop the top value off the stack
self._dynamic_array.remove(self._size - 1)
self._size -= 1
return 1
# DO NOT MODIFY THIS PRINT
def print_stack(self):
print '====\n' + '\n----\n'.join(
[str(v)
for v in self._dynamic_array._data[:self._size]]) + '\n^^^^'
class Stack(object):
# The __init__ function is run when you instantiate an instance of this object
def __init__(self):
self._size = 0
self._dynamic_array = DynamicArray()
#################################
## DO YOUR WORK BELOW THIS LINE #
#################################
def is_empty(self):
return self._size == 0
def size(self):
return self._dynamic_array.size()
def top(self):
return self._dynamic_array.get(self._dynamic_array.size() - 1)
def push(self, value):
self._dynamic_array.add(value)
def pop(self):
return self._dynamic_array.remove(self._dynamic_array.size() - 1)
# DO NOT MODIFY THIS PRINT
def print_stack(self):
print '====\n' + '\n----\n'.join([str(v) for v in self._dynamic_array._data[:self._size]]) + '\n^^^^'
def test_filter(self):
x = [1, 2, 4, 8, 3, 7, 9]
da = DynamicArray()
da.from_list(x)
da.filter("is_even")
# self.assertEqual(da.to_list(), [1, 3, 7,9])
print(da.to_list())
def test_iter(self):
x = [1, 2, 3]
da = DynamicArray()
da.from_list(x)
tmp = []
for e in da.to_list():
tmp.append(e)
self.assertEqual(x, tmp)
self.assertEqual(da.to_list(), tmp)
i = iter(DynamicArray())
self.assertRaises(StopIteration, lambda: next(i))
class ArrayStack(Stack):
# implémente l'ADT Stack (Stack.py)
# avec un tableau dynamique (DynamicArray.py)
def __init__(self):
self._A = DynamicArray()
def __len__(self):
return len(self._A)
def is_empty(self):
return len(self._A) == 0
def __str__(self):
pp = str(self._A)
if self.is_empty():
pp += "[empty stack]"
else:
obj = self.top()
pp += "[top = " + str(obj) + ", idx = " + str(len(self._A) -
1) + "]"
return pp
# push implémenté avec append
def push(self, obj):
self._A.append(obj)
# pop récupère l'erreur de DynamicArray
def pop(self):
try:
return self._A.pop()
except IndexError:
return None
# top implémenté avec get du dernier élément
def top(self):
return self._A.get(len(self._A) - 1)
def __init__( self ):
self._A = DynamicArray()
def test_find(self):
x = [1, 2, 4, 8]
da = DynamicArray()
da.from_list(x)
index, _ = da.find("is_even")
self.assertEqual(index, [1, 2, 3])
def test_mconcat(self):
x = [1, 2, 3]
y = [4, 5, 6]
da = DynamicArray()
B = DynamicArray()
da.from_list(x)
B.from_list(y)
da.mconcat(B)
self.assertEqual(da.to_list(), [1, 2, 3, 4, 5, 6])
def test_remove(self):
x = [1, 2, 3]
da = DynamicArray()
da.from_list(x)
da.remove(2)
self.assertEqual(da.to_list(), [1, 3])
def test_reduce(self):
da = DynamicArray()
self.assertEqual(da.reduce(lambda st, e: st + e, 0), 0)
da = DynamicArray()
da.from_list([1, 2, 3])
self.assertEqual(da.reduce(lambda st, e: st + e, 0), 6)
def test_append_len(self):
arr = DynamicArray()
arr.append(1)
arr.append(2)
assert len(arr) == 2
def test_from_list(self):
test_data = [[], [1], [1, 2]]
for lst in test_data:
da = DynamicArray()
da.from_list(lst)
self.assertEqual(da.to_list(), lst)
def __init__(self):
self.list = DynamicArray(None)
#########################################################################################
# Here are some basic tests to make sure your dynamic array implementation runs correctly
# You can run them by running 'python DynamicArrayTests.py' from the command line
#########################################################################################
from DynamicArray import DynamicArray
dyn_arr = DynamicArray()
print "Checking basic variable initializations..."
assert dyn_arr._size == dyn_arr.size()
assert dyn_arr._capacity == dyn_arr.capacity()
dyn_arr.print_data()
print "done\n"
###################################
print "Checking add function..."
dyn_arr.add(1)
assert dyn_arr.size() == 1
assert dyn_arr.capacity() == DynamicArray.INIT_CAPACITY
for v in range(2, dyn_arr.capacity() + 1):
dyn_arr.add(v)
assert dyn_arr.capacity() == DynamicArray.INIT_CAPACITY
dyn_arr.add(7)
def __init__(self):
DynamicArray.__init__(self)
from DynamicArray import DynamicArray
arr = DynamicArray()
for i in range(11):
arr.append(i)
for i in range(len(arr)):
print(arr[i])
def test_append_indexing(self):
arr = DynamicArray()
arr.append(1)
assert arr[0] == 1
def test_map(self):
da = DynamicArray()
da.map(str)
self.assertEqual(da.to_list(), [])
da = DynamicArray()
da.from_list([1, 2, 3])
da.map(str)
self.assertEqual(da.to_list(), ["1", "2", "3"])
__author__ = 'Stephen'
from DynamicArray import DynamicArray
from SortedList import SortedList
import sys
array = DynamicArray()
array.append(198479874)
for i in range(5000):
array.append("1")
size = sys.getsizeof(array)
print "Size in bytes: " + str(size)
def test_pop_i(self):
a = DynamicArray()
a.append(2)
a.append(1)
a.append(4)
assert a.pop(1) == 1
def __init__(self):
self._size = 0
self._dynamic_array = DynamicArray()
def test_get_item(self):
da = DynamicArray()
da.add(1)
self.assertEqual(da.__getitem__(0), 1)
def __init__(self):
self._A = DynamicArray()
from DynamicArray import DynamicArray a = DynamicArray() a.append(5) a.append(10) a.append(15) print(a)