N cities named with numbers 1 ... N are connected with one-way roads. Each road has two parameters associated with it: the road length and the toll that needs to be paid for the road (expressed in the number of coins). Bob and Alice used to live in t…
题目连接 http://poj.org/problem?id=3625 Building Roads Description Farmer John had just acquired several new farms! He wants to connect the farms with roads so that he can travel from any farm to any other farm via a sequence of roads; roads already conn…
C - Important RoadsTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=88926#problem/C Description The city where Georgie lives has n junctions some of which are connected by bidirectional roads. Every d…
Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10803 Accepted: 3062 Description Farmer John had just acquired several new farms! He wants to connect the farms with roads so that he can travel from any farm to any other farm via a se…
题目描述 Farmer John had just acquired several new farms! He wants to connect the farms with roads so that he can travel from any farm to any other farm via a sequence of roads; roads already connect some of the farms. Each of the N (1 ≤ N ≤ 1,000) farms…
P2872 [USACO07DEC]道路建设Building Roads 题目描述 Farmer John had just acquired several new farms! He wants to connect the farms with roads so that he can travel from any farm to any other farm via a sequence of roads; roads already connect some of the farms…
Important Roads Special JudgeTime Limit: 20000/10000MS (Java/Others)Memory Limit: 128000/64000KB (Java/Others) Problem Description The city where Georgie lives has n junctions some of which are connected by bidirectional roads. Every day Geo…
Farmer John had just acquired several new farms! He wants to connect the farms with roads so that he can travel from any farm to any other farm via a sequence of roads; roads already connect some of the farms. Each of the N (1 ≤ N ≤ 1,000) farms (con…
洛谷 P2872 [USACO07DEC]道路建设Building Roads 洛谷传送门 JDOJ 2546: USACO 2007 Dec Silver 2.Building Roads JDOJ传送门 Description Farmer John had just acquired several new farms! He wants to connect the farms with roads so that he can travel from any farm to any o…
P2872 [USACO07DEC]道路建设Building Roads 题目描述 Farmer John had just acquired several new farms! He wants to connect the farms with roads so that he can travel from any farm to any other farm via a sequence of roads; roads already connect some of the farms…
Building Roads Description Farmer John had just acquired several new farms! He wants to connect the farms with roads so that he can travel from any farm to any other farm via a sequence of roads; roads already connect some of the farms. Each of the N…
poj 1251 Jungle Roads (最小生成树) Link: http://poj.org/problem?id=1251 Jungle Roads Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 23507 Accepted: 11012 Description The Head Elder of the tropical island of Lagrishan has a problem. A b…
Jungle Roads Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7096 Accepted Submission(s): 5185 Problem Description The Head Elder of the tropical island of Lagrishan has a problem. A burst of…
Rebuilding Roads Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 11495 Accepted: 5276 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last May. Th…
F. Constructing Roads There are N villages, which are numbered from 1 to N, and you should build some roads such that every two villages can connect to each other. We say two village A and B are connected, if and only if there is a road between A and…
Description Berland has n cities, the capital is located in city s, and the historic home town of the President is in city t (s ≠ t). The cities are connected by one-way roads, the travel time for each of the road is a positive integer. Once a year t…
树形DP..... Rebuilding Roads Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 8188 Accepted: 3659 Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last Ma…
ROADS Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10777 Accepted: 3961 Description N cities named with numbers 1 ... N are connected with one-way roads. Each road has two parameters associated with it : the road length and the toll…
D. Fools and Foolproof Roads You must have heard all about the Foolland on your Geography lessons. Specifically, you must know that federal structure of this country has been the same for many centuries. The country consists of n cities, some pairs…
D. Directed Roads ZS the Coder and Chris the Baboon has explored Udayland for quite some time. They realize that it consists of n towns numbered from 1to n. There are n directed roads in the Udayland. i-th of them goes from town i to some other tow…
F - Cycling Roads Description When Vova was in Shenzhen, he rented a bike and spent most of the time cycling around the city. Vova was approaching one of the city parks when he noticed the park plan hanging opposite the central entrance. The plan…
Rebuilding Roads Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthquake last May. The cows didn't have time to rebuild any extra roads, so now there is exactly one wa…
Roads in the North Time Limit:1000MS Memory Limit:65536KB 64bit IO Format:%lld & %llu Description Building and maintaining roads among communities in the far North is an expensive business. With this in mind, the roads are build such that the…
D. Directed Roads time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output ZS the Coder and Chris the Baboon has explored Udayland for quite some time. They realize that it consists of n towns numbered…
726:ROADS 总时间限制: 1000ms 内存限制: 65536kB 描述 N cities named with numbers 1 ... N are connected with one-way roads. Each road has two parameters associated with it : the road length and the toll that needs to be paid for the road (expressed in the number…
Description The Head Elder of the tropical island of Lagrishan has a problem. A burst of foreign aid money was spent on extra roads between villages some years ago. But the jungle overtakes roads relentlessly, so the large road network is too expensi…
