publicintminDepth2(TreeNode root){if(root == null) {return0; } Queue<TreeNode> queue =newLinkedList<>(); queue.offer(root);intminDepth = Integer.MAX_VALUE;intdepth =1;while(!queue.isEmpty()) {intsize = queue.size();while(size >0) { TreeNode t = queue.poll();if(t.left !=...
Given a binary tree, find its minimum depth. The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node. 题意: 给定一棵二叉树。返回它的最小高度。 最小高度是指从根节点到近期的叶子节点的最短路径中的节点的数目。 算法分析: * 借助堆...
* Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * } */ class Solution { public int minDepth(TreeNode root) { if(root == null){ return 0; } if((root.left == null) && (root...
* int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * } */ public class Solution { public int minDepth(TreeNode root) { // Start typing your Java solution below // DO NOT write main() function return minRec(root); } private int minRec(TreeNode r...
* @return the minimum depth of the binary tree * * Time Complexity: O(n) - where n is the number of nodes in the tree. Each node is visited once. * Space Complexity: O(n) - for the queue used in the breadth-first search. */ public static...
computer-science algorithms data-structures sorting-algorithms breadth-first-search search-algorithms minimum-spanning-trees binary-search depth-first-search tree-traversal red-black-trees prims-algorithm bellman-ford-algorithm maximum-flow floyd-warshall-algorithm kruskals-algorithm dijkstras-algorithm ford-ful...
解题思路此处撰写解题思路利用树的递归遍历简单处理即可需要注意的点: 1、当树为空时,深度为0 2、树的左右节点都不为空时,需要获取最小的树深度Math.min(preOrder(root.left),preOrder(root.right))+1 3、左右子树其中一个为空时,return minDepth(roo 二叉树 Java 递归 0 190 0NNU...
Such aspects of protocol behavior are discussed in depth in Chapter 3; here, the focus is on resource issues. Sign in to download full-size image Figure 4.34. End-to-end acknowledgment as implemented in TCP (communication mechanism view); the situation with congestion. Sign in to download ...
We can preprocess P using a depth first search (T[i] is the father of node i in the tree, nr is [sqrt(H)] and L[i] is the level of the node i ): void dfs(int node, int T[MAXN], int N, int P[MAXN], int L[MAXN], int nr) {int k;//if node is situated in the...
DTS_E_SCHEDULERBADTREE Field DTS_E_SCHEDULERCOULDNOTCOUNTDESTINATIONS Field DTS_E_SCHEDULERCOULDNOTCOUNTSOURCES Field DTS_E_SCHEDULERMEMORY Field DTS_E_SCHEDULEROBJECT Field DTS_E_SCHEDULERTHREADMEMORY Field DTS_E_SCRIPTTASK_BINARYITEMNOTFOUNDEXCEPTION Field DTS_E_SCRIPTTASK_CANTINITNULLTASK Field DTS...