LeetCode:Add Two Numbers
2094 ワード
LeetCode:Add Two Numbers
The problem is described as following:
You are given two linked lists representing two non-negative numbers. 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.
Input: (2 -> 4 -> 3) + (5 -> 6 -> 4) Output: 7 -> 0 -> 8
My solution is as following(in Python ):
The problem is described as following:
You are given two linked lists representing two non-negative numbers. 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.
Input: (2 -> 4 -> 3) + (5 -> 6 -> 4) Output: 7 -> 0 -> 8
My solution is as following(in Python ):
# Definition for singly-linked list.
# class ListNode:
# def __init__(self, x):
# self.val = x
# self.next = None
class Solution:
# @return a ListNode
def addTwoNumbers(self, l1, l2):
re = ListNode(0)
cur = re
temp = 0
while not (l1 == None and l2 ==None):
extra = temp
if l1 != None :
extra += l1.val
l1 = l1.next
if l2 != None :
extra += l2.val
l2 = l2.next
temp = extra/10
cur.next = ListNode(extra%10)
cur = cur.next
if temp != 0:
cur.next = ListNode(temp)
return re.next