[leetcode: Python]237. Delete Node in a Linked List
2017-05-13 16:11
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题目:
Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.
Supposed the linked list is
方法一:性能65ms
方法二:性能48ms
Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.
Supposed the linked list is
1 -> 2 -> 3 -> 4and you are given the third node with value
3, the linked list should become
1 -> 2 -> 4after calling your function.
方法一:性能65ms
# Definition for singly-linked list. # class ListNode(object): # def __init__(self, x): # self.val = x # self.next = None class Solution(object): def deleteNode(self, node): """ :type node: ListNode :rtype: void Do not return anything, modify node in-place instead. """ if node and node.next: node.val = node.next.val node.next = node.next.next
方法二:性能48ms
# Definition for singly-linked list. # class ListNode(object): # def __init__(self, x): # self.val = x # self.next = None class Solution(object): def deleteNode(self, node): """ :type node: ListNode :rtype: void Do not return anything, modify node in-place instead. """ node.val = node.next.val node.next = node.next.next
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