You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.
You may assume the two numbers do not contain any leading zero, except the number 0 itself.
Input: (2 -> 4 -> 3) + (5 -> 6 -> 4)
Output: 7 -> 0 -> 8
def addtwonum(strings):
list1 = []
num = []
flag = 0
for i in range(len(strings)):
if strings[i] == '+':
lucy = strings[:i].strip().strip('(').strip(')')
jerry = strings[i+1:].strip().strip('(').strip(')')
for i in range(len(lucy)):
if lucy[i] == jerry[i]:
list1.append(lucy[i])
else:
sum = int(lucy[i]) + int(jerry[i]) + flag
if sum >= 10:
flag = 1
sum = sum-10
else:
flag = 0
list1.append(str(sum))
print(''.join(list1))
if __name__ == '__main__':
addtwonum("(3 -> 4 -> 5) + (5 -> 6 -> 7)")
