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letecode [257] - Binary Tree Paths
Given a binary tree, return all root-to-leaf paths. Note: A leaf is a node with no children. Example: 题目大意: 给定二叉树,输出它的所有路径,用vector容器保存。 理 解: 采用递归的思想。 ...
分类:其他好文   时间:2019-06-14 18:01:33    阅读次数:88
letecode [107] - Binary Tree Level Order Traversal II
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root). For ...
分类:其他好文   时间:2019-06-09 13:06:52    阅读次数:73
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.
/** * Definition for binary tree * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * } */ import ... ...
分类:其他好文   时间:2019-06-08 15:11:15    阅读次数:99
JAVA课堂测试之单词接龙
在input.txt中输入几个随机相接的单词例如Apple Zoo Elephant Under Fox Dog Moon Leaf Tree。 在代码中读取 File f = new File("input.txt"); FileInputStream fip = new FileInputStr ...
分类:编程语言   时间:2019-06-06 21:06:52    阅读次数:106
113. Path Sum II
Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum. Note: A leaf is a node with no children. Exampl ...
分类:其他好文   时间:2019-05-26 12:41:27    阅读次数:106
element-ui的树型结构图,带有复选框的,没有子项的,横排展示
// 修改树形图样式,如果不含有下箭头的块,要变成行内样式 treeChildInline(){ let hasCaretRight = $("#permission_panel").find(".is-leaf"); $.each(hasCaretRight,(index:number,item:... ...
分类:其他好文   时间:2019-05-15 14:26:04    阅读次数:267
求二叉树中叶子节点的个数
求二叉树中叶子节点的个数 面试题二叉树 题目描述 求二叉树中叶子节点的个数。 叶子节点的定义: 如果一个节点既没有左孩子,也没有右孩子,则该节点为叶子节点。 示例: 在这个二叉树中,叶子节点有 9,15,7,所以返回 3。 Java 实现 运行结果 leaf nodes:9 leaf nodes:1 ...
分类:其他好文   时间:2019-05-11 17:51:00    阅读次数:164
LeetCode 113. Path Sum II路径总和 II (C++)
题目: Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum. Note: A leaf is a node with no children. Ex ...
分类:编程语言   时间:2019-05-08 00:27:45    阅读次数:167
LeetCode 112. Path Sum路径总和 (C++)
题目: Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given su ...
分类:编程语言   时间:2019-05-07 01:36:34    阅读次数:156
(二叉树 BFS) leetcode 107. Binary Tree Level Order Traversal II
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root). For ...
分类:其他好文   时间:2019-04-28 20:27:43    阅读次数:171
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