Online Judge | Problem Set | Authors | Online Contests | User | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest |
大侠看看呀。。为何过不了啊。。thx+++#include<stdio.h> #include<math.h> #include<string.h> double x[200+10],y[200+10],x11,x22,y11,y22; int pos; const double INF = 100000000000000 ; double d[200+10][200+10],g[200+10][200+10],dd[200+10]; inline double dis1(const double &a,const double&b,const double &c,const double &d) { return sqrt((a-c)*(a-c)+(b-d)*(b-d))/1000/40*60; } inline double dis2(const double &a,const double&b,const double &c,const double &d) { return sqrt((a-c)*(a-c)+(b-d)*(b-d))/1000/10*60; } /*int floyd( int n) { int i,j,k; for (k =0; k <n; k ++ ) { for (i = 0 ; i < n; i ++ ) for (j = 0 ; j <n; j ++ ) { if (d[i][k] < INF && d[k][j] < INF&& d[i][k] + d[k][j] < d[i][j]) d[i][j] = d[i][k] + d[k][j]; } } printf("%.0f\n",d[0][n-1]); return 0 ; }*/ void Dijkstra(int n,int v,double *Dist) //或int Dist[MAX]; { double Cost[200+10][200+10]; memcpy(Cost,d,sizeof(Cost)); double temp,newdist; int i,j,u; bool s[200+10]; for(i=0;i<n;i++) Cost[i][i]=0; for(i=0;i<n;i++) { Dist[i]=Cost[v][i]; s[i]=false; } Dist[v]=0; s[v]=true; for(i=1;i<n;i++) { temp=INF; //u=v; for(j=0;j<n;j++) { if((!s[j]) && (Dist[j]<temp)) { u=j; temp=Dist[j]; } } s[u]=true; for(j=0;j<n;j++) { if((!s[j]))// && (Cost[u][j]<MAXVALUE)) { newdist=Dist[u]+Cost[u][j]; if(newdist<Dist[j]) Dist[j]=newdist; } } } printf("%.0lf",Dist[n-1]); return ; } void process() { int i,j; double t1,t2; for(i=0,pos=0;i<200+10;i++) for(j=0;j<200+10;j++) d[i][j]=INF; x[pos]=x11,y[pos++]=y11; while(scanf("%lf%lf",&t1,&t2)==2) { if(t1==-1&&t2==-1) continue; x[pos]=t1,y[pos++]=t2; while(true) { scanf("%lf%lf",&t1,&t2); if(t1==-1&&t2==-1) break; x[pos]=t1,y[pos]=t2; d[pos][pos-1]=d[pos-1][pos]=dis1(x[pos],y[pos],x[pos-1],y[pos-1]); ++pos; } } x[pos]=x22,y[pos++]=y22; for(i=0;i<pos;i++) for(j=i+1;j<pos;j++) { double xxx=dis2(x[i],y[i],x[j],y[j]); if(xxx<d[i][j]) d[i][j]=xxx; } // floyd(pos); Dijkstra(pos,0,dd); } int main() { //freopen("in.txt","r",stdin); //freopen("out.txt","w",stdout); while(scanf("%lf%lf%lf%lf",&x11,&y11,&x22,&y22)==4) process(); return 0; } Followed by:
Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator