Background Trees are fundamental in many branches of computer science. Current state-of-the art parallel computers such as Thinking Machines' CM-5 are based on fat trees. Quad- and octal-trees are fundamental to many algorithms in computer graphics.…

题目: 给出一棵树的表示,判断这棵树是否输入正确,如果正确就按层次遍历输出所有的结点,错误的话就输出not complete. 思路: 根据字符串中树的路径先将树建起来,在增加结点和层次遍历树的时候判断这棵树是不是输入正确. 错误的两种情况: 1.同一个结点被输入的两次 2.这个结点的孩子有值,但这个结点没有被输入值. 判断方法: 根据字符串中给出的路径,将整棵树先建起来,每个结点中设一个是否被访问过的标志vis 增加结点时如果这个结点的vis已经为true则为错误的情况1. 遍历树的时候,如果…

Trees are fundamental in many branches of computer science (Pun definitely intended). Current state- of-the art parallel computers such are based on fat trees . Quad- and octal-trees are fundamental to many algorithms in computer graphics. This probl…

 Trees on the level  Background Trees are fundamental in many branches of computer science. Current state-of-the art parallel computers such as Thinking Machines' CM-5 are based on fat trees. Quad- and octal-trees are fundamental to many algorithms i…

Trees on the level Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 584    Accepted Submission(s): 195题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1622 Problem Description Trees are fundamental…

题目链接:https://vjudge.net/contest/209862#problem/B 题目大意: Trees on the level Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 591    Accepted Submission(s): 200 Problem Description Trees are fundame…

UVA.122 Trees on the level(二叉树 BFS) 题意分析 给出节点的关系,按照层序遍历一次输出节点的值,若树不完整,则输出not complete 代码总览 #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> #include <queue> #include <vector> #define nmax 10…

 Trees on the level UVA - 122  解题思路: 首先要解决读数据问题,根据题意,当输入为“()”时,结束该组数据读入,当没有字符串时,整个输入结束.因此可以专门编写一个readin()函数,类型设置为bool型,遇到第一种情况时返回true,遇到第二种情况返回false,主程序中只要发现readin返回false时就break,结束整个大循环. 接下来要建立二叉树,首先为二叉树编写一个结构体,然后根据字符串的输入情况来建树,如果是‘L’就往左走,走不动时建一颗新树,同样…

本题考查点有以下几个: 对数据输入的熟练掌握 二叉树的建立 二叉树的宽度优先遍历 首先,特别提一下第一点,整个题目有相当一部分耗时在了第一个考查点上(虽然有些不必要,因为本应该有更简单的方法).这道题的输入有以下几种方案: 一次性输入并直接得到要得到的数据 输入后进行加工处理 对于第一种方案,我采用的是与正则相结合的方案 scanf("(%d%[,A-Z]) ",&d,s)) 得到这样的写法可谓是费了一番功夫.难点有几个,最突出的是考虑数据不存在的情况:如()(1,) 我的解决…

紫书:P150 uva122 Background Trees are fundamental in many branches of computer science. Current state-of-the art parallel computers such as Thinking Machines' CM-5 are based on fat trees. Quad- and octal-trees are fundamental to many algorithms in comp…