代码拉取完成,页面将自动刷新
class ListNode:
def __init__(self, val=0, next=None):
self.val = val
self.next = next
def addTwoNumbers(l1, l2):
start = curr = ListNode()
carry = 0
while l1 or l2:
value_l1 = l1.val if l1 else 0
value_l2 = l2.val if l2 else 0
total = value_l1 + value_l2 + carry
curr.next = ListNode(total % 10)
curr = curr.next
carry = total // 10
if l1:
l1 = l1.next
if l2:
l2 = l2.next
if carry:
curr.next = ListNode(carry)
return start.next
if __name__ == '__main__':
dummy = curr = ListNode() # dummy和curr公用了listcode的地址
print(dummy, curr)
curr.next = ListNode(2) # 是在dummy = curr = ListNode()上修改,
curr = curr.next # 令起空间
print(dummy, curr)
print(dummy.val, curr.val)
curr.next = ListNode(3)
curr = curr.next
print(dummy.val, curr.val)
print(dummy.next.next.val)
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