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002. Add Two Numbers
阅读量:122 次
发布时间:2019-02-27

本文共 1110 字,大约阅读时间需要 3 分钟。

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    class Solution:    def addTwoNumbers(self, l1: ListNode, l2: ListNode) -> ListNode:        dummy = ListNode(0)        current = dummy        carry = 0        while l1 or l2:            num1 = l1.val if l1 else 0            num2 = l2.val if l2 else 0            total = num1 + num2 + carry            carry = total // 10            current.next = ListNode(total % 10)            current = current.next            if l1:                l1 = l1.next            if l2:                l2 = l2.next        if carry:            current.next = ListNode(carry)        return dummy.next

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