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```C++ /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: int ... 阅读全文
posted @ 2018-07-28 22:18
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两种思路，第一种就是在数组两边放置两个指针，第二种是在数组左边放置两个快慢指针。第二种方法更简洁，并且可以扩展至单链表的情形。推荐使用 C++ include include include include include include include include include using 阅读全文
posted @ 2018-07-28 22:05
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摘要：
```C++ /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: int ... 阅读全文
posted @ 2018-07-28 12:21
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```python3
"""
# Definition for a Node.
class Node(object): def __init__(self, val, children): self.val = val self.children = children
"""
class Solution(object): def maxDepth(... 阅读全文
posted @ 2018-07-28 00:36
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