As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount of rescue teams in each city and the length of each road between any pair of cities are…

思路:用深搜遍历出所有可达路径,每找到一条新路径时,对最大救援人数和最短路径数进行更新. #include<iostream> #include<cstdio> #include<cstring> using namespace std; ; int tu[N][N],city[N],vis[N];//tu存道路,city存各城市救援人数,vis为标记数组 ,shortest=1e8,allpeople=;//path为最短路径数,allpeople为最大救援人数 vo…

1003. Emergency (25) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount…

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 (≤) and C, where N is the number of reco…

月饼是中国人在中秋佳节时吃的一种传统食品,不同地区有许多不同风味的月饼.现给定所有种类月饼的库存量.总售价.以及市场的最大需求量,请你计算可以获得的最大收益是多少. 注意:销售时允许取出一部分库存.样例给出的情形是这样的:假如我们有 3 种月饼,其库存量分别为 18.15.10 万吨,总售价分别为 75.72.45 亿元.如果市场的最大需求量只有 20 万吨,那么我们最大收益策略应该是卖出全部 15 万吨第 2 种月饼.以及 5 万吨第 3 种月饼,获得 72 + 45/2 = 94.5(亿元)…

PAT (Advanced Level) Practice 1006 Sign In and Sign Out (25 分) 凌宸1642 题目描述: At the beginning of every day, the first person who signs in the computer room will unlock the door, and the last one who signs out will lock the door. Given the records of s…

PAT (Advanced Level) Practice 1002 A+B for Polynomials (25 分) 凌宸1642 题目描述: This time, you are supposed to find A+B where A and B are two polynomials. 译:这一次,你要找到 A + B ,其中 A , B 是两个多项式 Input Specification (输入说明): Each input file contains one test case…

PAT (Advanced Level) Practice 1001-1005 PAT 计算机程序设计能力考试 甲级 练习题 题库:PTA拼题A官网 背景 这是浙大背景的一个计算机考试 刷刷题练练手 在博客更新题解 每五题更新一次 共155题 题目目录 1001 A+B Format (20分) 1002 A+B for Polynomials (25分) 1003 Emergency (25分) 1004 Counting Leaves (30分) 1005 Spell It Right (2…

Source: PAT (Advanced Level) Practice Reference: [1]胡凡,曾磊.算法笔记[M].机械工业出版社.2016.7 Outline: 基础数据结构: 线性表:栈,队列,链表,顺序表 树:二叉树的建立,二叉树的遍历,完全二叉树,二叉查找树,平衡二叉树,堆,哈夫曼树 图:图的存储和遍历 经典高级算法: 深度优先搜索,广度优点搜索,回溯剪枝 贪心,并查集,哈希映射 最短路径(只考察过单源),拓扑排序(18年9月第一次涉及相关概念,未正式考过),关键路径(未…

PAT (Advanced Level) Practice 1042 Shuffling Machine (20 分) 凌宸1642 题目描述: Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside jobs" where employ…