关于list,map,set的区别参考http://www.cnblogs.com/qlqwjy/p/7406573.html 1.遍历list @Test public void testList() { List<Integer> list = new ArrayList<Integer>(); list.add(1); list.add(2); System.out.println("-------------------list------------------
/** * 实现二叉树的创建.前序遍历.中序遍历和后序遍历 **/ package DataStructure; /** * Copyright 2014 by Ruiqin Sun * All right reserved * created on 2014-9-9 下午2:34:15 **/ public class BinTreeInt { private Node root; /** * 创建内部节点类 **/ private class Node{ // 左节点 private Nod
package com.example.demo; public class BTree { public int data; public BTree left; public BTree rigth; public boolean hasLeft(){ return left != null; } public boolean hasRigth(){ return rigth != null; } public BTree(){} } class main{ public static vo
例题 中序遍历94. Binary Tree Inorder Traversal 先序遍历144. Binary Tree Preorder Traversal 后序遍历145. Binary Tree Postorder Traversal 递归栈 递归函数栈的方法很基础,写法也很简单,三种遍历方式之间只需要改变一行代码的位置即可 中序遍历 /** * Definition for a binary tree node. * struct TreeNode { * int val; * Tre
03-树3. Tree Traversals Again (25) 题目来源:http://www.patest.cn/contests/mooc-ds/03-%E6%A0%913 An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, suppose that when a 6-node binary tree (with the keys num
