对比于链表,我们设定两个指针,先让第一个指针遍历 n 步,然后再让它俩同时开始遍历,这样的话,当第一个指针到头的时候,第二个指针就离第一个指针有 n 的距离,所以第二个指针的位置就刚好是倒数第 n 个结点。 public ListNode removeNthFromEnd(ListNode head, int n) { ListNode dummy = new ListNode(0);...
Remove Nth Node From End of List leetcode java 题目: Given a linked list, remove thenthnode from the end of list and return its head. For example, Given linked list:1->2->3->4->5, andn= 2. After removing the second node from the end, the linked list becomes1->2->3->5. N...
[LeetCode] 19. Remove Nth Node From End of List Java 题目:Given a linked list, remove thenth node from the end of list and return its head. For 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-...
Remove Nth Node From End of List Given a linked list, remove the nth 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. 1. 2. 3. Note: Given n will always be valid. Try to do ...
leetcode 19 Remove Nth Node From End of List 题目详情 Given a linked list, remove the nth node from the end of list and return its head. 题目要求输入一个linked list 和一个数字n。要求我们返回删掉了倒数第n个节点的链表。 For example,...
After removing the second node from the end, the linked list becomes 1->2->3->5. Note: Given n will always be valid. 本题难度easy,常规方法就不介绍了。我在discuss看到华人写的另一种解法,方法很不错。帖子是:My java solution, using a fast pointer,作者:传说选手。
每天一算:Remove Nth Node From End of List LeetCode上第19号问题:删除链表的倒数第N个节点 题目 给定一个链表,删除链表的倒数第 n 个节点,并且返回链表的头结点。示例:给定一个链表: 1->2->3->4->5, 和 n = 2. 当删除了倒数第二个节点后,链表变为 1->2->3->5说明:给定的 n 保证是有效的...
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**...
0017-Letter-Combinations-of-a-Phone-Number 0018-4Sum 0019-Remove-Nth-Node-From-End-of-List cpp-0019 java-0019/src 0020-Valid-Parentheses 0021-Merge-Two-Sorted-Lists 0022-Generate-Parentheses 0023-Merge-k-Sorted-Lists 0024-Swap-Nodes-in-Pairs 0025-Reverse-Nodes-in-k-Group...
0019-remove-nth-node-from-end-of-list.rs 0019-remove-nth-node-from-end-of-the-list.rs 0020-valid-parentheses.rs 0021-merge-two-sorted-lists.rs 0022-generate-parentheses.rs 0023-merge-k-sorted-lists.rs 0025-reverse-nodes-in-k-group.rs 0026-remove-duplicates-from-sorted-array.rs 0027-remo...