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Deven
38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
# Definition for singly-linked list.
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# class ListNode(object):
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# def __init__(self, val=0, next=None):
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# self.val = val
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# self.next = next
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class Solution(object):
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def addTwoNumbers(self, l1, l2):
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"""
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:type l1: ListNode
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:type l2: ListNode
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:rtype: ListNode
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"""
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sum = ListNode((l1.val + l2.val) % 10)
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carry = (l1.val + l2.val) / 10
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follow = sum
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num1 = l1.next
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num2 = l2.next
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while num1 != None or num2 != None or carry > 0:
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if num1 == None and num2 == None:
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follow.next = ListNode(carry)
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carry = 0
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elif num1 == None:
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follow.next = ListNode((num2.val + carry) % 10)
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follow = follow.next
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carry = (num2.val + carry) / 10
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num2 = num2.next
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elif num2 == None:
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follow.next = ListNode((num1.val + carry) % 10)
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follow = follow.next
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carry = (num1.val + carry) / 10
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num1 = num1.next
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else:
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follow.next = ListNode((num1.val + num2.val + carry) % 10)
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follow = follow.next
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carry = (num1.val + num2.val + carry) / 10
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num1 = num1.next
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num2 = num2.next
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return sum |