树

来源:https://leetcode-cn.com/problems/minimum-distance-between-bst-nodes/submissions/

 

 

 

来源:https://leetcode-cn.com/problems/search-in-a-binary-search-tree/

 

 

 

 

来源：https://leetcode-cn.com/problems/longest-univalue-path/

 

 

 

 

来源：https://leetcode-cn.com/problems/second-minimum-node-in-a-binary-tree/

 

 

 

 

来源：https://leetcode-cn.com/problems/trim-a-binary-search-tree/

 

 

 

 

来源：https://leetcode-cn.com/problems/construct-string-from-binary-tree/

 

 

 

来源：https://leetcode-cn.com/problems/two-sum-iv-input-is-a-bst/

 

 

 

 

来源：https://leetcode-cn.com/problems/subtree-of-another-tree/

 

 

 

来源：https://leetcode-cn.com/problems/diameter-of-binary-tree/

 

 

 

 

来源：https://leetcode-cn.com/problems/merge-two-binary-trees/

 

 

 

 

 

来源：https://leetcode-cn.com/problems/average-of-levels-in-binary-tree/

 

 

 

 

来源：https://leetcode-cn.com/problems/binary-tree-tilt/

 

 

 

 

 

 

来源：https://leetcode-cn.com/problems/path-sum-iii/submissions/

 

 

 

 

来源：https://leetcode-cn.com/problems/n-ary-tree-level-order-traversal/

 

 

 

来源：https://leetcode-cn.com/problems/same-tree/

题目：相同的树

 

 

 

 

 

 来源：https://leetcode-cn.com/problems/symmetric-tree

 

 题目：对称二叉树

 

 

 

 

 

来源：https://leetcode-cn.com/problems/maximum-depth-of-binary-tree/ 

题目：二叉树的高度

 

 

 

 来源：https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii/

题目：二叉树的层次遍历

 

 

 

 nullptr是C++空指针类型的关键字

来源：https://leetcode-cn.com/problems/convert-sorted-array-to-binary-search-tree/
题目：将有序数组变为二叉搜索树

 

 来源：https://leetcode-cn.com/problems/balanced-binary-tree/

题目：判断平衡二叉树

 

 

来源：https://leetcode-cn.com/problems/minimum-depth-of-binary-tree/

题目：二叉树的最小深度

 

 

 

 来源：https://leetcode-cn.com/problems/path-sum/

题目：路径求和

 

来源：https://leetcode-cn.com/problems/invert-binary-tree/

 

来源：https://leetcode-cn.com/problems/binary-tree-paths/