def main():
l1 = LinkedList()
l1.insert(1)
l1.insert(8)
l1.insert(9)
l1.insert(8)
l1.insert(9)
print_ll(l1.head)
l2 = LinkedList()
l2.insert(6)
l2.insert(2)
l2.insert(1)
print_ll(l2.head)
l3 = sum_lists(l1, l2)
print_ll(l3.head)
print("########")
l1 = LinkedList()
l1.insert_front(1)
l1.insert_front(8)
l1.insert_front(9)
l1.insert_front(8)
l1.insert_front(9)
print_ll(l1.head)
l2 = LinkedList()
l2.insert_front(6)
l2.insert_front(2)
l2.insert_front(1)
print_ll(l2.head)
print("****")
l4 = sum_lists2(l1, l2)
print_ll(l4.head)
print("****")
l5 = sum_lists_new(l1, l2)
print_ll(l5.head)
def sum_lists(l1, l2):
l3 = LinkedList()
node = l1.head
temp = l2.head
remainder = 0
while node or temp:
if node:
x = node.data
node = node.next
else:
x = 0
if temp:
y = temp.data
temp = temp.next
else:
y = 0
z = x + y + remainder
remainder = z / 10
l3.insert_front(z % 10)
if remainder == 1:
l3.insert_front(1)
return l3
def sum_lists2(l1, l2):
l4 = LinkedList()
node = l1.head
temp = l2.head
counter1 = 0
counter2 = 0
while node:
node = node.next
counter1 = counter1 + 1
while temp:
temp = temp.next
counter2 = counter2 + 1
node = l1.head
temp = l2.head
x = 0
y = 0
while node or temp:
if node:
counter1 = counter1 - 1
x = x + (node.data) * pow(10, counter1)
node = node.next
if temp:
counter2 = counter2 - 1
y = y + (temp.data) * pow(10, counter2)
temp = temp.next
z = x + y
n = z
digit = 1
while n >= 10:
n = n / 10
digit = digit + 1
for t in xrange(digit):
digit = digit - 1
s = z / pow(10, digit)
z = z - (s * pow(10, digit))
l4.insert_front(s)
return l4
