Offer_day02_24. 反转链表
定义一个函数,输入一个链表的头节点,反转该链表并输出反转后链表的头节点。
示例:
输入: 1->2->3->4->5->NULL
输出: 5->4->3->2->1->NULL
限制:
0 <= 节点个数 <= 5000
来源:力扣(LeetCode)
链接:https://leetcode-cn.com/problems/fan-zhuan-lian-biao-lcof
著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。
代码:
# 本题与主站 206 题相同
import time
from typing import List
# Definition for singly-linked list.
class ListNode:
def __init__(self, x):
self.val = x
self.next = None
class Solution:
def reverseList(self, head: ListNode) -> ListNode:
last = None
while head:
next = head.next
head.next = last
last = head
head = next
return last
def test(data_test):
s = Solution()
return s.getResult(*data_test)
if __name__ == '__main__':
datas = [
[],
]
for data_test in datas:
t0 = time.time()
print('-' * 50)
print('input:', data_test)
print('output:', test(data_test))
print(f'use time:{time.time() - t0}s')
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备注:
GitHub:https://github.com/monijuan/leetcode_python
CSDN汇总:模拟卷Leetcode 题解汇总_卷子的博客-CSDN博客
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leetcode_python.utils详见汇总页说明
先刷的题,之后用脚本生成的blog,如果有错请留言,我看到了会修改的!谢谢!
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