HDU 2722 Here We Go(relians) Again

最短路，建图太麻烦，略过……

#include <cstdio>   
#include <cstring>  
#include <queue>  
const int INF=9999999;  
using namespace std;  
struct node{  
    int v,i;  
    node(int a,int b){v=a,i=b;}  
    bool operator <(const node& a)const{return v>a.v;}  
};  
int n,m,map[500][500];  
int done[500],d[500];  
int dij(){  
    priority_queue q;  
    memset(done,0,sizeof done);  
    for(int i=1;i<=(n+1)*(m+1);i++)d[i]=INF;  
    d[1]=0;  
    q.push(node(d[1],1));  
    while(!q.empty()){  
        node nd=q.top();q.pop();  
        int u=nd.i;  
        if(done[u])continue;  
        done[u]=1;  
        for(int i=1;i<=(n+1)*(m+1);i++){  
            if(d[i]>d[u]+map[u][i]){  
                d[i]=d[u]+map[u][i];      
                q.push(node(d[i],i));  
            }  
        }  
    }  
    if(d[(n+1)*(m+1)]==INF)return -1;  
    else return d[(n+1)*(m+1)];   
}  
int main(){  
    char s[3];int v;  
    while(scanf("%d%d",&n,&m),n||m){  
        for(int i=1;i<=(n+1)*(m+1);i++)for(int j=1;j<=(n+1)*(m+1);j++)map[i][j]=INF;   
        int n1,n2;  
        for(int i=1;i<=2*n+1;i++){  
            if(i%2==1){  
                for(int j=1;j<=m;j++){  
                    n1=(i/2)*(m+1)+j,n2=n1+1;  
                    scanf("%d%s",&v,s);  
                    if(v==0)continue;  
                    if(s[0]=='*')map[n1][n2]=map[n2][n1]=2520/v;  
                    else if(s[0]=='<')map[n2][n1]=2520/v;  
                    else if(s[0]=='>')map[n1][n2]=2520/v;      
                }         
            }else{  
                for(int j=1;j<=m+1;j++){  
                    n1=(i/2-1)*(m+1)+j,n2=n1+m+1;  
                    scanf("%d%s",&v,s);  
                    if(v==0)continue;  
                    if(s[0]=='*')map[n1][n2]=map[n2][n1]=2520/v;  
                    else if(s[0]=='v')map[n1][n2]=2520/v;  
                    else if(s[0]=='^')map[n2][n1]=2520/v;  
                }  
            }  
        }  
        int r=dij();  
        if(r==-1)printf("Holiday\n");  
        else printf("%d blips\n",r);   
    }  
    return 0;     
}