Maximum Depth of Binary Tree Minimum Height Trees 参考资料: https://leetcode.com/problems/find-leaves-of-binary-tree/ https://leetcode.com/problems/find-leaves-of-binary-tree/discuss/83773/1-ms-Easy-understand-Java-Solution https://leetcode.com/problems/find-leaves-of-binary-tree/discuss/1916...
For this question we need to take bottom-up approach. The key is to find the height of each node. The height of a node is the number of edges from the node to the deepest leaf. 1/**2* Definition for a binary tree node.3* public class TreeNode {4* int val;5* TreeNode left;6...
Leetcode 98 Validate Binary Search Tree Leetcode 270 Cloest Binary Search Tree Value Leetcode 235 Lowest Common Ancestor of a Binary Search Tree Leetcode 669 Trim a Binary Search Tree (分治) Leetcode 700 Search in a Binary Search Tree Leetcode 108 Convert Sorted Array to Binary Search Tree...
and you may find that some attributes and elements have been dropped or trimmed down. At the end of the day, though, you have a compatible subset, so you can produce a Silverlight version of a moderately complex WPF user interface. Shortly, I'll return to discuss critical areas...
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int max; public int diameterOfBinaryTree(TreeNode root) { max = 0; helper(root); return max; } private int helper(TreeNode root) { if (root == null) { return -1; } if (root.left == null && root.right == null) { return 0; } int left = helper(root.left) + 1; int righ...
Maximum Depth of Binary Tree (Easy) Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Note: A leaf is a node with no children. Example: Given binary tree [3,9,20,null,null...
Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. 【代码】 【递归】 时间复杂度为O(n) 空间复杂度为O(logn) /** * Definition for binary tree ...
Error code: 21300057 department cannot find the corresponding parent department Error code: 21300058 multiple department marks in a department Error code: 21300059 dead loop in department tree Error code: 21300061 role name setting out of range ...
and you may find that some attributes and elements have been dropped or trimmed down. At the end of the day, though, you have a compatible subset, so you can produce a Silverlight version of a moderately complex WPF user interface. Shortly, I'll return to discuss critical areas of compati...