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全部文章 / 题解（共9篇）

题解 | #判断是不是平衡二叉树#

public: map<TreeNode*,int>arr;//用这个不会数组越界，并且数字相同影响也不大 int dfs(TreeNode* root){ if(!root){ return 0; } ...

C++ 二叉树

2022-04-13

0 275

题解 | #二叉搜索树的后序遍历序列#

public: //int j=0,i=0,root=0; bool VerifySquenceOfBST(vector<int> sequence) { int size=sequence.size()-1; if(size==-1)re...

C++ 二叉树

2022-03-11

0 338

题解 | #在二叉树中找到两个节点的最近公共祖先#

* struct TreeNode { * int val; * struct TreeNode *left; * struct TreeNode *right; * }; */ class Solution { public: /** * * @param...

C++ 二叉树

2022-01-20

0 280

题解 | #二叉树中和为某一值的路径(三)#

* struct TreeNode { * int val; * struct TreeNode *left; * struct TreeNode *right; * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {} * ...

C++ 二叉树

2022-01-20

0 381

题解 | #二叉树的下一个结点#

struct TreeLinkNode { int val; struct TreeLinkNode *left; struct TreeLinkNode *right; struct TreeLinkNode *next; TreeLinkNode(int ...

C++ 二叉树

2022-01-20

0 355

题解 | #二叉搜索树与双向链表#

struct TreeNode { int val; struct TreeNode *left; struct TreeNode *right; TreeNode(int x) : val(x), left(NULL), right(NULL) { } };*/ class Sol...

C++ 二叉树递归

2022-01-20

0 326

题解 | #二叉树中和为某一值的路径(二)#

struct TreeNode { int val; struct TreeNode *left; struct TreeNode *right; TreeNode(int x) : val(x), left(NULL), right(NULL) { } };*/ class Sol...

C++ 深度优先搜索二叉树

2022-01-18

0 328

题解 | #树的子结构#

struct TreeNode { int val; struct TreeNode *left; struct TreeNode *right; TreeNode(int x) : val(x), left(NULL), right(NULL) { } };*/ class Sol...

C++ 二叉树

2021-12-20

2 391

题解 | #重建二叉树#

* Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left...

C++ 二叉树

2021-12-19

0 289