public ListNode removeNthFromEnd(ListNode head, int n) { // nth指向p前n个结点,pre为nth前一个结点,即pre/nth/p ListNode p = head, nth = head, pre = null; while (--n > 0) { p = p.next; } while (p.next != null) { p = p.next; pre = nth; nth = nth.next; } // 此...
Given a linked list, remove the nth node from the end of list and return its head. For example, Given linked list: 1->2->3->4->5, and n = 2. After removing the second node from the end, the linked list becomes 1->2->3->5. Note: Given n will always be valid. Try to d...
}// 删除第n个节点// ListNode nthNode = p1.next;p1.next = p1.next.next;// nthNode.next = null;returndummy.next; } }// Runtime: 6 ms// Your runtime beats 100.00 % of java submissions. Python 实现 # Definition for singly-linked list.# class ListNode:# def __init__(self, x...
题目:LeetCode19 Given a linked list, remove then-th node from the end of list and return its head. Example: Given linked list: 1->2->3->4->5, andn= 2. After removing the second node from the end, the linked list becomes 1->2->3->5. Note: Givennwill always be valid. Foll...
19. Remove Nth Node From End of List Given a linked list, remove the nth node from the end of list and return its head. For example, Given linked list: 1->2->3->4->5, and n = 2. After removing the second node from the end, the linked list becomes 1->2->3->5. ...
# Definition for singly-linked list. # class ListNode: # def __init__(self, val=0, next=None): # self.val = val # self.next = next class Solution: def removeNthFromEnd(self, head: ListNode, n: int) -> ListNode: fast = head slow = head for _ in range(n): fast = fast.ne...
After removing the second node from the end, the linked list becomes 1->2->3->5. Note: Given n will always be valid. Follow up: Could you do this in one pass? 思路: 这道题让我们移除链表倒数第N个节点,限定n一定是有效的,即n不会大于链表中的元素总数。还有题目要求我们一次遍历解...
Bulk Insert Arabic Data from .csv file to MS SQL 2008 DB Bulk Insert error file does not exist BULK INSERT error Row 1 File Offset 0 ErrorFile Offset 0 - HRESULT 0x80004005. BULK INSERT Error; Access is Denied. BULK INSERT error: Bulk load: An unexpected end of file was encount...
19. Remove Nth Node From End of List 20. Valid Parentheses 21. Merge Two Sorted Lists 23. Merge k Sorted Lists 26. Remove Duplicates from Sorted Array 27. Remove Element 28. Implement strStr() 29. Divide Two Integer 30. Substring with Concatenation of All Words ...
19. Remove Nth Node From End of List Given a linked list, remove then-th node from the end of list and return its head. Example: 代码语言:javascript 复制 Given linked list:**1->2->3->4->5**,and**_n_=2**.After removing the second node from the end,the linked list becomes**...