Insert a node in a sorted linked list. Example Example 1: Input: head =1->4->6->8->null, val =5Output:1->4->5->6->8->null Example 2: Input: head =1->null, val =2Output:1->2->null---就是在一个有序的链表中插入一个数。C++代码: 注意有表头,表中间和表尾三个情况 /**...
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees of every node never differ by more than 1. Example: AI检测代...
Given a sorted linked list, delete all duplicates such that each element appear onlyonce. For example, Given1->1->2, return1->2. Given1->1->2->3->3, return1->2->3. 如题目所诉,去除递增链表中重复值的节点。 刚开始思路如下: 设置一个指针用于遍历全部节点 让每个节点和其next节点值比较...
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} ...
package leetcode /** * Definition for singly-linked list. * type ListNode struct { * Val int * Next *ListNode * } */ func mergeTwoLists(l1 *ListNode, l2 *ListNode) *ListNode { if l1 == nil { return l2 } if l2 == nil { return l1 } if l1.Val < l2.Val { l1.Next = merg...
package leetcode /** * Definition for singly-linked list. * type ListNode struct { * Val int * Next *ListNode * } */ func mergeKLists(lists []*ListNode) *ListNode { length := len(lists) if length < 1 { return nil } if length == 1 { return lists[0] } num := length / 2...
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 给出一个所有元素以升序排序的单链表,将它转换成一棵高度平衡的二分查找树. 【题目链接】 www.lintcode.com/en/problem/convert-sorted-list-to-balanced-bst/ ...
* Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * };*/classSolution {public: ListNode*mergeKLists(vector<ListNode *> &lists) {if(lists.empty())returnNULL;intend = lists.size() -1;while(end >0)...
record the current head of each list. Use binary insertation to arrange the head list, select the minimum one and add to the end of the return list. Newest Solution (Use PriorityQueue): /*** Definition for singly-linked list. * public class ListNode { ...
Also, one may pass a c-string literal to one of the emplace-functions to implicitly insert a cstr object, i.e. vec_cstr_emplace(&vec, "Hello") as an alternative to vec_cstr_push(&vec, cstr_from("Hello")). Standardized container iterators. All containers can be iterated in the same...