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/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : 阅读全文
posted @ 2022-08-24 19:15
hjy94wo
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/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : 阅读全文
posted @ 2022-08-24 16:53
hjy94wo
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思路: 快慢指针法:当快指针与慢指针相遇时,分别从起点,相遇点开始走,相遇即为环入口 /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) 阅读全文
posted @ 2022-08-24 14:14
hjy94wo
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/** Definition for singly-linked list. struct ListNode { int val; ListNode *next; ListNode(int x) : val(x), next(NULL) {} }; */ class Solution { publi 阅读全文
posted @ 2022-08-24 11:41
hjy94wo
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思路: 先翻转链表再删除第n个节点再翻转链表 删除第n个节点需要pre指向head节点再用cur记录删除节点的前一个节点 /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; 阅读全文
posted @ 2022-08-24 11:05
hjy94wo
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/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : 阅读全文
posted @ 2022-08-24 10:39
hjy94wo
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/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : 阅读全文
posted @ 2022-08-24 10:05
hjy94wo
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