HDU3231 Box Relations 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3231 题目意思:在一个三维空间上有一些棱和坐标轴平行的立方体.给够给予四种关系.I i j表示i,j两个立方体是有部分的重合,X i j表示立方体i所有点x坐标都小于立方体j的x坐标,Y i j表示立方体i所有点y坐标都小于立方体j的y坐标,Z i j表示立方体i所有点Z坐标都小于立方体j的Z坐标.然后给出一系列这样的关系,问你这些关系是否存在矛盾,如果不…
Box Relations Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 894 Accepted Submission(s): 324Special Judge Problem Description There are n boxes C1, C2, ..., Cn in 3D space. The edges of the…
Box Relations Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1334 Accepted Submission(s): 540Special Judge Problem Description There are n boxes C1, C2, ..., Cn in 3D space. The edges of the…
这道题算是我拓扑排序入门的收棺题了,卡了我好几天,期间分别犯了超时,内存溢出,理解WA,细节WA,格式WA…… 题目的意思大概是在一个三维坐标系中,有一大堆矩形,这些矩形的每条棱都与坐标轴平行. 这些矩形有4种情况—— 1. 有重合部分(I a b) 表示a与b重合: 2. a的x坐标大于b的x坐标(X a b),表示a的最大的x坐标大于b的最小的x坐标: 3. (Y a b)y坐标,同上: 4. (Z a b)z坐标,同上: 也就是说,我们可以把每个矩形ai按照三个方向分解,分别为——平行于x…
John has n tasks to do. Unfortunately, the tasks are not independent and the execution of one task is only possible if other tasks have already been executed. Input The input will consist of several instances of the problem. Each instance begins with…
---恢复内容开始--- Genealogical tree Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 4875 Accepted: 3236 Special Judge Description The system of Martians' blood relations is confusing enough. Actually, Martians bud when they want and where…
两道拓扑排序问题的范例,用拓扑排序解决的实质是一个单向关系问题 POJ1094(ZOJ1060)-Sortng It All Out 题意简单,但需要考虑的地方很多,因此很容易将code写繁琐了,会给力求code精简的强迫症患者一个警醒- - 题意:给出m组逻辑关系式,求n个字母间的排序,分排序成功-排序矛盾-不能确定三种情况输出相应语句 题解:拓扑排序,访问入度为0的结点,邻接点入度-1,然后继续访问入度为0的结点...直到访问完成为止 需要注意的地方在于三种情况根据最早确定的情况来输出,例如…
poj 1094 Sorting It All Out Time Limit:1000MS Memory Limit:10000KB 64bit IO Format:%lld & %llu Description An ascending sorted sequence of distinct values is one in which some form of a less-than operator is used to order the elements from sm…
Description An ascending sorted sequence of distinct values is one in which some form of a less-than operator is used to order the elements from smallest to largest. For example, the sorted sequence A, B, C, D implies that A < B, B < C and C < D.…
题目 Output: standard output Time Limit: 1 second Memory Limit: 32 MB John has n tasks to do. Unfortunately, the tasks are not independent and the execution of one task is only possible if other tasks have already been executed. Input The input will co…
Genealogical Tree Time limit: 1.0 secondMemory limit: 64 MB Background The system of Martians’ blood relations is confusing enough. Actually, Martians bud when they want and where they want. They gather together in different groups, so that a Martian…
题意:给出n个字符,m对关系,让你输出三种情况: 1.若到第k行时,能判断出唯一的拓扑序列,则输出: Sorted sequence determined after k relations: 序列 2.若到第k行,出现环,则输出: Inconsistency found after k relations. 3.若直到m行后,仍判断不出唯一的拓扑序列,则输出: Sorted sequence cannot be deter…
http://poj.org/problem?id=1094 Sorting It All Out Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 24505 Accepted: 8487 Description An ascending sorted sequence of distinct values is one in which some form of a less-than operator is use…
Description An ascending sorted sequence of distinct values is one in which some form of a less-than operator is used to order the elements from smallest to largest. For example, the sorted sequence A, B, C, D implies that A < B, B < C and C < D.…
题意:是否唯一确定顺序,根据情况输出 #include <iostream> #include<cstdio> #include<cstring> #include<stack> using namespace std; /* run this program using the console pauser or add your own getch, system("pause") or input loop */ #define N…
Ordering Tasks John has n tasks to do. Unfortunately, the tasks are not independent and the execution of one task isonly possible if other tasks have already been executed.InputThe input will consist of several instances of the problem. Each instance…
拓扑排序模版题型: John has n tasks to do.Unfortunately, the tasks are not independent and the execution of one task is only possible if other tasks have already been executed. Input The input will consist of several instances of the problem. Each instance be…
Sorting It All Out poj-1094 题目大意:给出一些字符串之间的大小关系,问能否得到一个唯一的字符串序列,满足权值随下标递增. 注释:最多26个字母,均为大写. 想法:显然,很容易想到用toposort处理,对于每一个刚刚读入的大小关系,我们对进行一次拓扑排序,由于点数最多是26,所以总时间复杂度是$10^2$的.然后通过题面,可以发现第一个和第三个判定依据是可以中途退出的,而第二个条件是必须最后才可以判断的.但是由于poj的多组数据,我们必须要将所有的数据都读入完毕才能达…
An ascending sorted sequence of distinct values is one in which some form of a less-than operator is used to order the elements from smallest to largest. For example, the sorted sequence A, B, C, D implies that A < B, B < C and C < D. in this pro…
今天被拓扑排序给折磨了一天,主要就是我的一个代码有点小bug,真难找... 先来看看我今天写的题目吧! C. Fox And Names Fox Ciel is going to publish a paper on FOCS (Foxes Operated Computer Systems, pronounce: "Fox"). She heard a rumor: the authors list on the paper is always sorted in the lexic…
Sorting It All Out Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 39602 Accepted: 13944 Description An ascending sorted sequence of distinct values is one in which some form of a less-than operator is used to order the elements from s…
