利用 floyd 並且記錄路徑,首次學習了
//============================================================================
// Name : The Scrooge Co Problem.cpp
// Date : 2013/4/2 下午7:39:19
// Author : GCA
//============================================================================
#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <climits>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <cctype>
#include <utility>
using namespace std;
#ifdef ONLINE\_JUDGE
#define ll "%lld"
#else
#define ll "%I64d"
#endif
typedef unsigned int uint;
typedef long long int Int;
#define Set(a,s) memset(a,s,sizeof(a))
#define Write(w) freopen(w,"w",stdout)
#define Read(r) freopen(r,"r",stdin)
#define Pln() printf("\\n")
#define I\_de(x,n)for(int i=0;i<n;i++)printf("%d ",x\[i\]);Pln()
#define De(x)printf(#x"%d\\n",x)
#define For(i,x)for(int i=0;i<x;i++)
#define CON(x,y) x##y
#define Pmz(dp,nx,ny)for(int hty=0;hty<ny;hty++){for(int htx=0;htx<nx;htx++){\\
printf("%d ",dp\[htx\]\[hty\]);}Pln();}
#define M 110
#define PII pair<int,int\>
#define PB push\_back
#define oo (INT\_MAX>>1)
#define Set\_oo 0x3f
#define Is\_debug true
#define debug(...) if(Is\_debug)printf("DEBUG: "),printf(\_\_VA\_ARGS\_\_)
#define FOR(it,c) for(\_\_typeof((c).begin()) it=(c).begin();it!=(c).end();it++)
#define eps 1e-6
bool xdy(double x,double y){return x>y+eps;}
bool xddy(double x,double y){return x>y-eps;}
bool xcy(double x,double y){return x<y-eps;}
bool xcdy(double x,double y){return x<y+eps;}
int min3(int x,int y,int z){
int tmp=min(x,y);
return min(tmp,z);
}
int max3(int x,int y,int z){
int tmp=max(x,y);
return max(tmp,z);
}
int mz\[M\]\[M\];
char sid\[M\]\[30\];
map<string,int\> rsid;
int n;
int path\[M\]\[M\];
void floyd(){
for(int k=0;k<n;k++){
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
if(mz\[i\]\[k\]+mz\[k\]\[j\]<mz\[i\]\[j\]){
mz\[i\]\[j\]=mz\[i\]\[k\]+mz\[k\]\[j\];
path\[i\]\[j\]=path\[i\]\[k\];
}
}
}
}
}
int main() {
ios\_base::sync\_with\_stdio(0);
int test;
scanf("%d",&test);
while(test--){
rsid.clear();
scanf("%d",&n);
for(int i=0;i<n;i++){
scanf("%s",sid\[i\]);
rsid\[sid\[i\]\]=i;
}
int tmp;
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
scanf("%d",&tmp);
if(tmp==-1)mz\[i\]\[j\]=oo;
else mz\[i\]\[j\]=tmp;
path\[i\]\[j\]=j;
}
}
// Pmz(mz,n,n);
floyd();
// Pln();
// Pmz(mz,n,n);
int q;
scanf("%d",&q);
char str1\[30\],str2\[30\],str3\[30\];
for(int i=0;i<q;i++){
scanf("%s%s%s",str1,str2,str3);
int x=rsid\[str2\];
int y=rsid\[str3\];
int ans=mz\[x\]\[y\];
// debug("%d %d\\n",x,y);
if(ans==oo){
printf("Sorry Mr %s you can not go from %s to %s\\n",str1,str2,str3);
continue;
}
printf("Mr %s to go from %s to %s, you will receive %d euros\\nPath:",str1,str2,str3,ans);
printf("%s",str2);
for(x=path\[x\]\[y\];x!=y;x=path\[x\]\[y\]){
printf(" %s",sid\[x\]);
}printf(" %s\\n",str3);
}
}
}