某编程大赛中设计有一个挑战环节,选手可以查看其他选手的代码,发现错误后,提交一组测试数据将对手挑落马下.为了减小被挑战的几率,有些选手会故意将代码写得很难看懂,比如把所有回车去掉,提交所有内容都在一行的程序,令挑战者望而生畏. 为了对付这种选手,现请你编写一个代码排版程序,将写成一行的程序重新排版.当然要写一个完美的排版程序可太难了,这里只简单地要求处理C语言里的for.while.if-else这三种特殊结构,而将其他所有句子都当成顺序执行的语句处理.输出的要求如下: 默认程序起始没有缩进:每…

代码排版包括: 空行.空格.断行和缩进等内容.代码排版内容比较多工作量很多,但是非常重要. 空行 空行将逻辑相关的代码段分隔开,以提高可读性.下列情况应该总是添加空行: 类型声明之前. import语句前后. 两个方法或函数之间. 块注释或单行注释之前. 方法或函数内的两个逻辑段之间,用以提高可读性. 一个源文件的两个片段之间. 空格 在代码中有些位置是需要有空格的,这个工作量也是很大的.下列是使用空格的规范: 1.赋值符号“=”前后有一个空格.var或let与标识符之间有一个空格.所有的二元运…

title: 04-树6 Complete Binary Search Tree(30 分) date: 2017-11-12 14:20:46 tags: - 完全二叉树 - 二叉搜索树 categories: 数据结构 题目链接 题目大意 给出n个节点,构造一棵完全二叉搜索树. 最后按层次遍历输出这棵树. 分析 搜索二叉树的中序遍历是按照由小到大的顺序遍历的. 而完全二叉树,知道树的结点后就可以唯一确定树的结构,因此知道树的结点数后,中序遍历并将结点由小到大给树赋值,就可以构建出树. AC代…

7-2 二叉搜索树的结构(30 分) 二叉搜索树或者是一棵空树,或者是具有下列性质的二叉树: 若它的左子树不空,则左子树上所有结点的值均小于它的根结点的值:若它的右子树不空,则右子树上所有结点的值均大于它的根结点的值:它的左.右子树也分别为二叉搜索树.(摘自百度百科) 给定一系列互不相等的整数,将它们顺次插入一棵初始为空的二叉搜索树,然后对结果树的结构进行描述.你需要能判断给定的描述是否正确.例如将{ 2 4 1 3 0 }插入后,得到一棵二叉搜索树,则陈述句如“2是树的根”.“1和4是兄弟结点…

1053 Path of Equal Weight(30 分) Given a non-empty tree with root R, and with weight W​i​​ assigned to each tree node T​i​​. The weight of a path from R to L is defined to be the sum of the weights of all the nodes along the path from R to any leaf no…

1091 Acute Stroke(30 分) One important factor to identify acute stroke (急性脑卒中) is the volume of the stroke core. Given the results of image analysis in which the core regions are identified in each MRI slice, your job is to calculate the volume of the…

1004 Counting Leaves (30)(30 分) A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have no child. Input Each input file contains one test case. Each case starts with a line containing 0 < N < 10…

原创文章,欢迎转载.转载请注明:关东升的博客 代码排版包括: 空行.空格.断行和缩进等内容.代码排版内容比较多工作量很多,但是非常重要. 空行 空行将逻辑相关的代码段分隔开,以提高可读性.下列情况应该总是添加空行: 类型声明之前. import语句前后. 两个方法或函数之间. 块注释或单行注释之前. 方法或函数内的两个逻辑段之间,用以提高可读性. 一个源文件的两个片段之间. 空格 在代码中有些位置是需要有空格的,这个工作量也是很大的.下列是使用空格的规范: 1.赋值符号“=”前后有一个空格.va…

家谱处理(30 分) 人类学研究对于家族很感兴趣,于是研究人员搜集了一些家族的家谱进行研究.实验中,使用计算机处理家谱.为了实现这个目的,研究人员将家谱转换为文本文件.下面为家谱文本文件的实例: John Robert Frank Andrew Nancy David 家谱文本文件中,每一行包含一个人的名字.第一行中的名字是这个家族最早的祖先.家谱仅包含最早祖先的后代,而他们的丈夫或妻子不出现在家谱中.每个人的子女比父母多缩进2个空格.以上述家谱文本文件为例,John这个家族最早的祖先,他有两个…

二叉搜索树的结构(30 分) PTA 模拟+字符串处理 二叉搜索树的节点插入和非递归遍历   二叉搜索树的结构(30 分) 二叉搜索树或者是一棵空树,或者是具有下列性质的二叉树: 若它的左子树不空,则左子树上所有结点的值均小于它的根结点的值:若它的右子树不空,则右子树上所有结点的值均大于它的根结点的值:它的左.右子树也分别为二叉搜索树.(摘自百度百科) 给定一系列互不相等的整数,将它们顺次插入一棵初始为空的二叉搜索树,然后对结果树的结构进行描述.你需要能判断给定的描述是否正确.例如将{ 2 4…

二叉搜索树的结构(30 分) 二叉搜索树或者是一棵空树,或者是具有下列性质的二叉树: 若它的左子树不空,则左子树上所有结点的值均小于它的根结点的值:若它的右子树不空,则右子树上所有结点的值均大于它的根结点的值:它的左.右子树也分别为二叉搜索树.(摘自百度百科) 给定一系列互不相等的整数,将它们顺次插入一棵初始为空的二叉搜索树,然后对结果树的结构进行描述.你需要能判断给定的描述是否正确.例如将{ 2 4 1 3 0 }插入后,得到一棵二叉搜索树,则陈述句如“2是树的根”.“1和4是兄弟结点”.“3…

A1095 Cars on Campus (30)(30 分) Zhejiang University has 6 campuses and a lot of gates. From each gate we can collect the in/out times and the plate numbers of the cars crossing the gate. Now with all the information available, you are supposed to tel…

7-6 公路村村通(30 分) 现有村落间道路的统计数据表中,列出了有可能建设成标准公路的若干条道路的成本,求使每个村落都有公路连通所需要的最低成本. 输入格式: 输入数据包括城镇数目正整数N(≤1000)和候选道路数目M(≤3N):随后的M行对应M条道路,每行给出3个正整数,分别是该条道路直接连通的两个城镇的编号以及该道路改建的预算成本.为简单起见,城镇从1到N编号. 输出格式: 输出村村通需要的最低成本.如果输入数据不足以保证畅通,则输出−1,表示需要建设更多公路. 输入样例: 6 15 1…

1119 Pre- and Post-order Traversals(30 分) Suppose that all the keys in a binary tree are distinct positive integers. A unique binary tree can be determined by a given pair of postorder and inorder traversal sequences, or preorder and inorder traversa…

我先在CSDN上面发表了同样的文章,见https://blog.csdn.net/weixin_44385565/article/details/88863693 排版比博客园要好一些.. 1135 Is It A Red-Black Tree (30 分) There is a kind of balanced binary search tree named red-black tree in the data structure. It has the following 5 proper…

社交网络图中结点的"重要性"计算 (30 分) 在社交网络中,个人或单位(结点)之间通过某些关系(边)联系起来.他们受到这些关系的影响,这种影响可以理解为网络中相互连接的结点之间蔓延的一种相互作用,可以增强也可以减弱.而结点根据其所处的位置不同,其在网络中体现的重要性也不尽相同. "紧密度中心性"是用来衡量一个结点到达其它结点的"快慢"的指标,即一个有较高中心性的结点比有较低中心性的结点能够更快地(平均意义下)到达网络中的其它结点,因而在该网络的…

原创文章,欢迎转载.转载请注明:关东升的博客 代码排版包括: 空行.空格.断行和缩进等内容.代码排版内容比較多工作量非常多.可是非常重要. 空行 空行将逻辑相关的代码段分隔开.以提高可读性. 下列情况应该总是加入空行: 类型声明之前. import语句前后. 两个方法或函数之间. 块凝视或单行凝视之前. 方法或函数内的两个逻辑段之间,用以提高可读性. 一个源文件的两个片段之间. 空格 在代码中有些位置是须要有空格的,这个工作量也是非常大的.下列是使用空格的规范: 1.赋值符号"="前后…

7-4 Cartesian Tree (30分)   A Cartesian tree is a binary tree constructed from a sequence of distinct numbers. The tree is heap-ordered, and an inorder traversal returns the original sequence. For example, given the sequence { 8, 15, 3, 4, 1, 5, 12, 1…

1076 Forwards on Weibo (30分)   Weibo is known as the Chinese version of Twitter. One user on Weibo may have many followers, and may follow many other users as well. Hence a social network is formed with followers relations. When a user makes a post o…

1080 Graduate Admission (30 分)   It is said that in 2011, there are about 100 graduate schools ready to proceed over 40,000 applications in Zhejiang Province. It would help a lot if you could write a program to automate the admission procedure. Each…

1147 Heaps (30 分)   In computer science, a heap is a specialized tree-based data structure that satisfies the heap property: if P is a parent node of C, then the key (the value) of P is either greater than or equal to (in a max heap) or less than or…

1072 Gas Station (30 分)   A gas station has to be built at such a location that the minimum distance between the station and any of the residential housing is as far away as possible. However it must guarantee that all the houses are in its service r…

1068 Find More Coins (30 分)   Eva loves to collect coins from all over the universe, including some other planets like Mars. One day she visited a universal shopping mall which could accept all kinds of coins as payments. However, there was a special…

1064 Complete Binary Search Tree (30 分)   A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes with keys less than the node's key. The right subtree of a…

1057 Stack (30 分)   Stack is one of the most fundamental data structures, which is based on the principle of Last In First Out (LIFO). The basic operations include Push (inserting an element onto the top position) and Pop (deleting the top element).…

1053 Path of Equal Weight (30 分)   Given a non-empty tree with root R, and with weight W​i​​ assigned to each tree node T​i​​. The weight of a path from R to L is defined to be the sum of the weights of all the nodes along the path from R to any leaf…

1049 Counting Ones (30 分)   The task is simple: given any positive integer N, you are supposed to count the total number of 1's in the decimal form of the integers from 1 to N. For example, given N being 12, there are five 1's in 1, 10, 11, and 12. I…

1045 Favorite Color Stripe (30 分)   Eva is trying to make her own color stripe out of a given one. She would like to keep only her favorite colors in her favorite order by cutting off those unwanted pieces and sewing the remaining parts together to f…

1038 Recover the Smallest Number (30 分)   Given a collection of number segments, you are supposed to recover the smallest number from them. For example, given { 32, 321, 3214, 0229, 87 }, we can recover many numbers such like 32-321-3214-0229-87 or 0…

1034 Head of a Gang (30 分)   One way that the police finds the head of a gang is to check people's phone calls. If there is a phone call between A and B, we say that A and B is related. The weight of a relation is defined to be the total time length…