BFS and Queue
BFS (Bridth First Search) can be implemented by a queue.
Procedure is like this: (Q is Queue)
1, Put 1 in Q : ->1 (front)
2, Read the front of Q (which is 1) and put its children in Q: ->4->3->2
3, Repeat 2
....
Also, DFS (Depth First Search) can be implemented by a stack.
Procedure is like this: (S is Stack)
1, Put 1 in S: 1<- (bottom)
2, Read the top of S which is 1 and put its children into S: 2<-7<-8
3, Repeat 2
....
Think about it!
BFS and Queue的更多相关文章
- Trees on the level UVA - 122 复习二叉树建立过程,bfs,queue,strchr,sscanf的使用。
Trees are fundamental in many branches of computer science (Pun definitely intended). Current state- ...
- 32-1题:不分行从上到下打印二叉树/BFS/deque/queue
题目 从上往下打印出二叉树的每个节点,同层节点从左至右打印. 考点 1.广度优先遍历 2.binary tree 3.queue 4.deque 思路 按层打印:8.6.10.5.7.9.11 用ST ...
- Clone Graph leetcode java(DFS and BFS 基础)
题目: Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. ...
- AOJ 0121: Seven Puzzle (BFS DP STL 逆向推理)(转载)
转载自: http://m.blog.csdn.net/blog/Enjoying_Science/42008801 题目链接:http://acm.hust.edu.cn/vjudge/probl ...
- DFS/BFS Codeforces Round #301 (Div. 2) C. Ice Cave
题目传送门 /* 题意:告诉起点终点,踩一次, '.'变成'X',再踩一次,冰块破碎,问是否能使终点冰破碎 DFS:如题解所说,分三种情况:1. 如果两点重合,只要往外走一步再走回来就行了:2. 若两 ...
- DFS/BFS+思维 HDOJ 5325 Crazy Bobo
题目传送门 /* 题意:给一个树,节点上有权值,问最多能找出多少个点满足在树上是连通的并且按照权值排序后相邻的点 在树上的路径权值都小于这两个点 DFS/BFS+思维:按照权值的大小,从小的到大的连有 ...
- HDU1241(bfs)JAVA
import java.util.Scanner;public class Main1241 { public static void main(String[] args) { Scanner ci ...
- HDU_1401——同步双向BFS,八进制位运算压缩,map存放hash
这个速度比分步快一点,内存占的稍微多一点 Problem Description Solitaire is a game played on a chessboard 8x8. The rows an ...
- POJ 3041 Asteroids(模板——二分最大匹配(BFS增广))
题目链接: http://poj.org/problem?id=3041 Description Bessie wants to navigate her spaceship through a da ...
随机推荐
- java中多态的使用
一.动手动脑 public class ParentChildTest { public static void main(String[] args) { Parent parent=new Par ...
- css3实现进度条
HTML 结构很简单,但不是 Single Element: <div class="spinner"><i></i></div> ...
- public static void main(String[] args){} 关于Java main()方法
是Java程序的入口方法,JVM在运行程序时,会首先查找main()方法. public是权限修饰符,表明任何类或对象都可以访问这个方法: static表明main()方法是一个静态方法,即方法中的代 ...
- c#委托与事件(详解)
引言 委托 和 事件在 .Net Framework中的应用非常广泛,然而,较好地理解委托和事件对很多接触C#时间不长的人来说并不容易.它们就像是一道槛儿,过了这个槛的人,觉得真是太容易了,而没有过去 ...
- 下载、安装jdk8(Windows下)并配置变量环境
一.官网下载地址:http://www.oracle.com/technetwork/java/javase/downloads/index-jsp-138363.html 点击下图中的downloa ...
- JS代码备忘
function $(v) { if (typeof v === 'function') { window.onload = v; } else if (typeof v === 'string') ...
- 一行一行分析JQ源码学习笔记-05
创建字符串<li></li>$.function(){var str =} merge;用法 对外组数何必 对内部 还可以json合并var arr = ["a&qu ...
- Java JVM 类的连接与初始化 [ 转载 ]
Java类的连接与初始化 (及2013阿里初始化笔试题解析) 转自http://www.cnblogs.com/iceAeterNa/p/4876747.html Java虚拟机通过 ...
- JVM基础(6)-常用参数总结
参考文章: 并发编程网:http://ifeve.com/useful-jvm-flags-part-4-heap-tuning/ 一.参数分类 HotSpot JVM 提供了三类参数. 第一类包括了 ...
- 请问如何查询一个APP的Android和iOS下载量?
作者:Jasmine Jiang链接:http://www.zhihu.com/question/28533067/answer/87871598来源:知乎著作权归作者所有,转载请联系作者获得授权. ...