题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1869 转载请注明出处:http://blog.csdn.net/u012860063?viewmode=contents Problem Description 1967年,美国著名的社会学家斯坦利·米尔格兰姆提出了一个名为"小世界现象(small world phenomenon)"的著名假说,大意是说,不论什么2个素不相识的人中间最多仅仅隔着6个人,即仅仅用6个人就能够将他们联系在一起
Travelling Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6600 Accepted Submission(s): 2144 Problem Description After coding so many days,Mr Acmer wants to have a good rest.So travelling is
Problem 2271 X Accept: 303 Submit: 1209Time Limit: 1500 mSec Memory Limit : 32768 KB Problem Description X is a fully prosperous country, especially known for its complicated transportation networks. But recently, for the sake of better contr
最短路 Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 42716 Accepted Submission(s): 18715 Problem Description 在每年的校赛里,全部进入决赛的同学都会获得一件非常美丽的t-shirt.可是每当我们的工作人员把上百件的衣服从商店运回到赛场的时候,却是非常累的! 所以如今他们想要
[Usaco2005 Dec]Knights of Ni 骑士 Description 贝茜遇到了一件很麻烦的事:她无意中闯入了森林里的一座城堡,如果她想回家,就必须穿过这片由骑士们守护着的森林.为了能安全地离开,贝茜不得不按照骑士们的要求,在森林寻找一种特殊的灌木并带一棵给他们.当然,贝茜想早点离开这可怕的森林,于是她必须尽快完成骑士们给的任务,贝茜随身带着这片森林的地图,地图上的森林被放入了直角坐标系,并按x,y轴上的单位长度划分成了W×H(1≤W,H≤1000)块,贝茜在地图上查出了她自
Walls Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 7677 Accepted: 3719 Description In a country, great walls have been built in such a way that every great wall connects exactly two towns. The great walls do not cross each other. Th