题目链接:HDU Today 立即集训要開始,抓紧时间练练手,最短路的基础题,第一次用STL的map 题目非常水,可是错了N遍.手贱了.本题不优点理的就是把地名转化为数字 #include <iostream> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <map> #define N 155 #define INF 1e7 using namespace…

Electronic Document Security Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 172    Accepted Submission(s): 94 Problem Description The Tyrell corporation uses a state-of-the-art electronic docu…

产生冠军 Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 26204    Accepted Submission(s): 11751 Problem Description 有一群人,打乒乓球比赛,两两捉对撕杀,每两个人之间最多打一场比赛.球赛的规则如下:如果A打败了B,B又打败了C,而A与C之间没有进行过比赛,那么就认定,A一定能打败…

Problem Description The annual school bicycle contest started. ZL is a student in this school. He is so boring because he can't ride a bike!! So he decided to interfere with the contest. He has got the players' information by previous contest video.…

[传送门]https://nanti.jisuanke.com/t/31458 [题目大意]有N个帧,每帧有K个动作特征,每个特征用一个向量表示(x,y).两个特征相同当且仅当他们在不同的帧中出现且向量的两个分量分别相等.求最多连续相同特征的个数? [题解]用一个map来维护帧中特征的信息,map中的键即读入的向量,因此用一个pair<int , int>表示,键的值也是一个pair,需要记录它当前已经连续了多少次,还需要记录它上一次出现的帧的位置.如果它上一帧没有出现过,那么它的连续次数就要…

HDU 3567 Eight II(八数码 II) /65536 K (Java/Others)   Problem Description - 题目描述 Eight-puzzle, which is also called "Nine grids", comes from an old game. In this game, you are given a 3 by 3 board and 8 tiles. The tiles are numbered from 1 to 8 and…

题意:给你几个模式串,问你主串最少改几个字符能够使主串不包含模式串 思路:从昨天中午开始研究,研究到现在终于看懂了.既然是多模匹配,我们是要用到AC自动机的.我们把主串放到AC自动机上跑,并保证不出现模式串,这里对AC自动机的创建有所改动,我们需要修改不存在但是符合要求的节点,如果某节点的某一子节点不存在,我们就把这个子节点指向他父辈节点存在的该节点(比如k->next[1]不存在,k->fail->next[1]存在,我们就把他改为k->next[1] = k->fail-…

HDU 5723 Abandoned country(落后渣国) Time Limit: 8000/4000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Description 题目描述 An abandoned country has n(n≤100000) villages which are numbered from 1 to n. Since abandoned for a long time, the r…

HDU 3016 Man Down (线段树+dp) Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1391    Accepted Submission(s): 483 Problem Description The Game “Man Down 100 floors” is an famous and interesting ga…

HDU 3400 Line belt (三分再三分) ACM 题目地址:  pid=3400" target="_blank" style="color:rgb(0,136,204); text-decoration:none">HDU 3400 Line belt 题意:  就是给你两条线段AB , CD .一个人在AB以速度p跑,在CD上以q跑,在其它地方跑速度是r.问你从A到D最少的时间. 分析:  先三分AB上的点.再三分CD上的点就可以. …