http://poj.org/problem?id=2263
//* @author: 82638882@163.com
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;
public class Main
{
static int[][] w=new int[256][256];
public static void main(String[] args) throws NumberFormatException, IOException
{
InputStreamReader is=new InputStreamReader(System.in);
BufferedReader in=new BufferedReader(is);
int cnt=0;
while(true)
{
cnt++;
String[] ss=in.readLine().split(" ");
int n=Integer.parseInt(ss[0]);
int m=Integer.parseInt(ss[1]);
if(n==0&&m==0) break;
for(int i=0;i< n;i++)
for(int j=0;j< n;j++)
w[i][j]=0;
for(int i=0;i< n;i++)
w[i][i]=1000000000;
String[] name=new String[n+1];
int len=0;
for(int i=0;i< m;i++)
{
ss=in.readLine().split(" ");
int a=-1;
for(int j=0;j< len;j++)
if(ss[0].equals(name[j]))
{
a=j;
break;
}
if(a==-1){
a=len;
name[len++]=ss[0];
}
int b=-1;
for(int j=0;j< len;j++)
if(ss[1].equals(name[j]))
{
b=j;
break;
}
if(b==-1){
b=len;
name[len++]=ss[1];
}
w[a][b]=w[b][a]=Integer.parseInt(ss[2]);
}
ss=in.readLine().split(" ");
int str=-1,dis=-1;
for(int i=0;i< n;i++)
{
if(ss[0].equals(name[i]))
str=i;
if(ss[1].equals(name[i]))
dis=i;
}
for(int k=0;k< n;k++)
for(int i=0;i< n;i++)
for(int j=0;j< n;j++)
w[i][j]=Math.max(w[i][j], Math.min(w[i][k], w[k][j]));
System.out.println("Scenario #"+cnt);
System.out.println(w[str][dis]+" tons");
System.out.println();
}
}
}
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