def add_two_linkedlist(node1, node2, followup=False):
#4->2->8->1->9: 91824 4->2->8->1->9: 91824
#4->2->8->1->9: 91824 4->2->8->1: 1824
#sum: 183648 93648
carry = 0
result_node = None
if not followup:
while node1 != None or node2 != None:
if node2 == None:
digit = node1.data + carry
if node1 == None:
digit = node2.data + carry
if node1 != None and node2 != None:
digit = node1.data + node2.data + carry
carry = 0 # reset carry
if digit >= 10:
digit = digit % 10
carry = 1
if result_node == None:
result_node = LinkedListNode(digit)
else:
result_node.append_to_tail(digit)
if node1 != None:
node1 = node1.next
if node2 != None:
node2 = node2.next
if carry != 0:
result_node.append_to_tail(carry)
return result_node
def add_two_linkedlist(node1, node2, followup=False):
# 4->2->8->1->9: 91824 4->2->8->1->9: 91824
# 4->2->8->1->9: 91824 4->2->8->1: 1824
# sum: 183648 93648
carry = 0
result_node = None
if not followup:
while node1 != None or node2 != None:
if node2 == None:
digit = node1.data + carry
if node1 == None:
digit = node2.data + carry
if node1 != None and node2 != None:
digit = node1.data + node2.data + carry
carry = 0 # reset carry
if digit >= 10:
digit = digit % 10
carry = 1
if result_node == None:
result_node = LinkedListNode(digit)
else:
result_node.append_to_tail(digit)
if node1 != None:
node1 = node1.next
if node2 != None:
node2 = node2.next
if carry != 0:
result_node.append_to_tail(carry)
return result_node
def setUp(self):
head = LinkedListNode('a')
head = head.append_to_tail('b')
head = head.append_to_tail('b')
head = head.append_to_tail('c')
other_head = LinkedListNode(4)
other_head = other_head.append_to_tail(2)
other_head = other_head.append_to_tail(8)
other_head = other_head.append_to_tail(1)
other_head = other_head.append_to_tail(9)
another_head = LinkedListNode(4)
another_head = another_head.append_to_tail(2)
another_head = another_head.append_to_tail(8)
another_head = another_head.append_to_tail(1)
loop0 = LinkedListNode('a')
loop1 = LinkedListNode(data='b', next=loop0)
loop2 = LinkedListNode(data='c', next=loop1)
loop3 = LinkedListNode(data='d', next=loop2)
loop4 = LinkedListNode(data='e', next=loop3)
loop5 = LinkedListNode(data='f', next=loop4)
loop0.next = loop3
palindrome_odd = LinkedListNode('a')
palindrome_odd = palindrome_odd.append_to_tail('b')
palindrome_odd = palindrome_odd.append_to_tail('c')
palindrome_odd = palindrome_odd.append_to_tail('b')
palindrome_odd = palindrome_odd.append_to_tail('a')
palindrome_even = LinkedListNode('a')
palindrome_even = palindrome_even.append_to_tail('b')
palindrome_even = palindrome_even.append_to_tail('b')
palindrome_even = palindrome_even.append_to_tail('a')
palindrome = LinkedListNode('a')
palindrome = palindrome.append_to_tail('b')
palindrome = palindrome.append_to_tail('c')
palindrome = palindrome.append_to_tail('d')
palindrome = palindrome.append_to_tail('e')
self.board = [['x','x','o'],
['o','o','x'],
['x','o','x']]
self.board_diag = [['x','x','o'],
['o','x','x'],
['x','o','x']]
self.sequences = [1, 2, 4, 7, 10, 11, 7, 12, 6, 7, 16, 18, 19]
self.palindrome = palindrome #it's a->b->c->d->e
self.palindrome_odd = palindrome_odd #it's a->b->c->b->a
self.palindrome_even = palindrome_even #it's a->b->b->a
self.loop_head = loop5 #it's f->e->d->c->b->a->d
self.head = head #it's a->b->b->c
self.other_head = other_head #it's 4->2->8->1->9
self.another_head = another_head #it's 4->2->8->1
self.node = self.head.next.next #it's b. b->c
self.node_none = self.head.next.next.next #it's c. c->None
self.words = {'Do': 1, 'Here': 1, 'I': 1, 'a': 2, 'book': 2,
'check': 1, 'find': 1, 'for': 1, 'frequencies': 1,
'important': 2, 'in': 2, 'is': 1, 'need': 1,
'testing': 1, 'the': 2, 'this': 1, 'to': 1,
'topics': 1, 'very': 6, 'words': 1}