In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Similarly, an Eulerian circuit is an Eulerian path which starts and ends on the same vertex. They were first discussed by Leonhard Euler while solving the fa…

题目已经告诉如何判断欧拉回路了,剩下的有一点要注意,可能图本身并不连通. 所以这里用并查集来判断图的联通性. #include <iostream> #include <cstdio> #include <algorithm> #include <string.h> #include <string> using namespace std; /* 并查集用来判断图的联通性,有一组样例图是不连通的... */ ; ]; struct UF{ in…

1126. Eulerian Path (25) 时间限制 300 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Similarly, an Eulerian circuit is an Eulerian path which starts…

PAT排名汇总(25 分) 计算机程序设计能力考试(Programming Ability Test,简称PAT)旨在通过统一组织的在线考试及自动评测方法客观地评判考生的算法设计与程序设计实现能力,科学的评价计算机程序设计人才,为企业选拔人才提供参考标准(网址http://www.patest.cn). 每次考试会在若干个不同的考点同时举行,每个考点用局域网,产生本考点的成绩.考试结束后,各个考点的成绩将即刻汇总成一张总的排名表. 现在就请你写一个程序自动归并各个考点的成绩并生成总排名表. 输入…

1126 Eulerian Path (25 分) In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Similarly, an Eulerian circuit is an Eulerian path which starts and ends on the same vertex. They were first discussed by Leonhard…

1114 Family Property (25 分) This time, you are supposed to help us collect the data for family-owned property. Given each person's family members, and the estate(房产)info under his/her own name, we need to know the size of each family, and the average…

1101 Quick Sort (25 分) There is a classical process named partition in the famous quick sort algorithm. In this process we typically choose one element as the pivot. Then the elements less than the pivot are moved to its left and those larger than th…

In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Similarly, an Eulerian circuit is an Eulerian path which starts and ends on the same vertex. They were first discussed by Leonhard Euler while solving the fa…

1029 Median (25 分)   Given an increasing sequence S of N integers, the median is the number at the middle position. For example, the median of S1 = { 11, 12, 13, 14 } is 12, and the median of S2 = { 9, 10, 15, 16, 17 } is 15. The median of two sequen…

1126 Eulerian Path (25 分) In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Similarly, an Eulerian circuit is an Eulerian path which starts and ends on the same vertex. They were first discussed by Leonhard…

1070 Mooncake (25 分)   Mooncake is a Chinese bakery product traditionally eaten during the Mid-Autumn Festival. Many types of fillings and crusts can be found in traditional mooncakes according to the region's culture. Now given the inventory amounts…

In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Similarly, an Eulerian circuit is an Eulerian path which starts and ends on the same vertex. They were first discussed by Leonhard Euler while solving the fa…

In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Similarly, an Eulerian circuit is an Eulerian path which starts and ends on the same vertex. They were first discussed by Leonhard Euler while solving the fa…

1078 Hashing (25 分)   The task of this problem is simple: insert a sequence of distinct positive integers into a hash table, and output the positions of the input numbers. The hash function is defined to be ( where TSize is the maximum size of the ha…

1032 Sharing (25 分)   To store English words, one method is to use linked lists and store a word letter by letter. To save some space, we may let the words share the same sublist if they share the same suffix. For example, loading and being are store…

In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Similarly, an Eulerian circuit is an Eulerian path which starts and ends on the same vertex. They were first discussed by Leonhard Euler while solving the fa…

返回 1051 Pop Sequence (25 分)   Given a stack which can keep M numbers at most. Push N numbers in the order of 1, 2, 3, ..., N and pop randomly. You are supposed to tell if a given sequence of numbers is a possible pop sequence of the stack. For exampl…

1111 Online Map (30 分) Input our current position and a destination, an online map can recommend several paths. Now your job is to recommend two paths to your user: one is the shortest, and the other is the fastest. It is guaranteed that a path exist…

1108 Finding Average (20 分) The basic task is simple: given N real numbers, you are supposed to calculate their average. But what makes it complicated is that some of the input numbers might not be legal. A legal input is a real number in [−1000,1000…

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 properties: (1) Every node is either red or black. (2) The root is black. (3) Every leaf (NULL) is bl…

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 travers…

1112 Stucked Keyboard (20 分) On a broken keyboard, some of the keys are always stucked. So when you type some sentences, the characters corresponding to those keys will appear repeatedly on screen for k times. Now given a resulting string on screen,…

1095 Cars on Campus (30 分) Zhejiang University has 8 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 tell, at…

We have a network of computers and a list of bi-directional connections. Each of these connections allows a file transfer from one computer to another. Is it possible to send a file from any computer on the network to any other? Input Specification:…

有了一张自驾旅游路线图,你会知道城市间的高速公路长度.以及该公路要收取的过路费.现在需要你写一个程序,帮助前来咨询的游客找一条出发地和目的地之间的最短路径.如果有若干条路径都是最短的,那么需要输出最便宜的一条路径. 输入格式: 输入说明:输入数据的第1行给出4个正整数NN.MM.SS.DD,其中NN(2\le N\le 5002≤N≤500)是城市的个数,顺便假设城市的编号为0~(N-1N−1):MM是高速公路的条数:SS是出发地的城市编号:DD是目的地的城市编号.随后的MM行中,每行给出一条高…

终于做的有点眉目了,今天学习了一点stl的皮毛,解题瞬间变容易了 下边开始分析本题 这道题如果用纯c解决实在太麻烦,试了半天两个超时,果断放弃,还是用map方便: 我的方法与柳神的方法是有区别的,我只是用map来保存学校在结构体数组中的地址. 代码中每一块都有注释,绝对不是耍流氓的直接贴一片代码, 注意: 最后学校的成绩要求取整,为了省去遍历一遍学校结构体数组,所有用到了float性分数的地方都强转了int #include<iostream> #include<algorithm>…

每次 PAT 考试结束后,考试中心都会发布一个考生单位排行榜.本题就请你实现这个功能. 输入格式: 输入第一行给出一个正整数 N(≤),即考生人数.随后 N 行,每行按下列格式给出一个考生的信息: 准考证号 得分 学校 其中准考证号是由 6 个字符组成的字符串,其首字母表示考试的级别:B代表乙级,A代表甲级,T代表顶级:得分是 [0, 100] 区间内的整数:学校是由不超过 6 个英文字母组成的单位码(大小写无关).注意:题目保证每个考生的准考证号是不同的. 输出格式: 首先在一行中输出单位个数…

Given an absolute path for a file (Unix-style), simplify it. For example,path = "/home/", => "/home"path = "/a/./b/../../c/", => "/c" Corner Cases: Did you consider the case where path = "/../"?In th…

Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum. For example: Given the below binary tree and sum = 22, 5 / \ 4 8 / / \ 11 13 4 / \ / \ 7 2 5 1 return [ [5,4,11,2], [5,8,4,5] ] 给定一个二叉树和数字sum,输出二叉树…

题目 Excel can sort records according to any column. Now you are supposed to imitate this function. Input Specification: Each input file contains one test case. For each case, the first line contains two integers N (≤10​5 ) and C, where N is the number…