ANARC08F  Einbahnstrasse
Einbahnstrasse (German for a oneway street) is a street on which vehicles should only move in one direction. One reason for having oneway streets is to facilitate a smoother flow of traffic through crowded areas. This is useful in city centers, especially old cities like Cairo and Damascus. Careful planning guarantees that you can get to any location starting from any point. Nevertheless, drivers must carefully plan their route in order to avoid prolonging their trip due to oneway streets. Experienced drivers know that there are multiple paths to travel between any two locations. Not only that, there might be multiple roads between the same two locations. Knowing the shortest way between any two locations is a must! This is even more important when driving vehicles that are hard to maneuver (garbage trucks, towing trucks, etc.)
You just started a new job at a cartowing company. The company has a number of towing trucks parked at the company's garage. A towtruck lifts the front or back wheels of a broken car in order to pull it straight back to the company's garage. You receive calls from various parts of the city about broken cars that need to be towed. The cars have to be towed in the same order as you receive the calls. Your job is to advise the towtruck drivers regarding the shortest way in order to collect all broken cars back in to the company's garage. At the end of the day, you have to report to the management the total distance traveled by the trucks.
Input
Your program will be tested on one or more test cases. The first line of each test case specifies three numbers (N , C , and R ) separated by one or more spaces. The city has N locations with distinct names, including the company's garage. C is the number of broken cars. R is the number of roads in the city. Note that 0 < N < 100 , 0 <= C < 1000 , and R < 10000 . The second line is made of C + 1 words, the first being the location of the company's garage, and the rest being the locations of the broken cars. A location is a word made of 10 letters or less. Letter case is significant. After the second line, there will be exactly R lines, each describing a road. A road is described using one of these three formats:
A v> B
A <v B
A <v> B
A and B are names of two different locations, while v is a positive integer (not exceeding 1000) denoting the length of the road. The first format specifies a oneway street from location A to B , the second specifies a oneway street from B to A , while the last specifies a twoway street between them. A , "the arrow", and B are separated by one or more spaces. The end of the test cases is specified with a line having three zeros (for N , C , and R .)
The test case in the example below is the same as the one in the figure.
Output
For each test case, print the total distance traveled using the following format:
k. V
Where k is test case number (starting at 1,) is a space, and V is the result.
Example
Input: 4 2 5 NewTroy Midvale Metrodale NewTroy <20> Midvale Midvale 50> Bakerline NewTroy <5 Bakerline Metrodale <30> NewTroy Metrodale 5> Bakerline 0 0 0 Output: 1. 80
hide comments
nadstratosfer:
20190326 04:26:37
There are no unreachable cars in testdata. 

yogesh0201:
20180918 09:18:38
If a road doesn't exist between two cities then distance between them should be taken as 1000000000 otherwise some test cases might fail in which a broken car is in a city with no connectivity. 

amulyagaur:
20171023 09:19:30
simple floydwarshall :) 

Ishaan:
20150630 23:00:41
I am getting wrong answer. Have tried every possible case. does anyone have any idea y??


parijat bhatt:
20150617 16:24:39
places for broken cars are duplicates 

GAURAV CHANDEL:
20150501 12:45:52
AC with floydwarshall... 

vishal:
20150124 12:35:36
a must solve prob of


Jens Stimpfle:
20140211 03:16:35
At first I thought there were actually up to 180 distinct names (found that out via "binary search" and assertions), but then I noticed that the input has DOS line endings (so my program created more names than there actually are). I think this is normally not the case with other problems, at least it was totally unexpected for me. Last edit: 20140211 03:16:57 

laith:
20120628 19:02:52
am getting wrong answer but am sure my answer is correct i try the input that was used in the contests and compare my output with the output file they where matched !!!!?any idea


:D:
20110612 18:47:29
I don't know, but I guess you can assume the driving cost to be 0 then. 
Added by:  Ahmed Aly 
Date:  20090704 
Time limit:  0.174s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ERL JSRHINO NODEJS PERL6 VB.NET 
Resource:  ANARC 2008 