> #include<iostream>
> #include<cstdio>
> #include<cmath>
> using namespace std;
> float a[1001],b[1001];
> float distance(float x1,float y1,float x2,float y2){
> 	return sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
> }
> int main(){
> 	float gopherx,gophery,dogx,dogy;
> 	while(cin>>gopherx>>gophery>>dogx>>dogy){
> 		bool flag=0;
> 		float sum=999999,x,y;
> 		int i=0,j;
> 		while(scanf("%f%f",a+i,b+i)!=EOF){
> 			++i;
> 		}
> 		for(j=0;j<=i;++j){
> 			float d_gopher=distance(gopherx,gophery,a[j],b[j]);
> 			float d_dog=distance(dogx,dogy,a[j],b[j]);
> 			if(d_gopher<d_dog/2){
> 				if(d_gopher<sum){
> 					sum=d_gopher;
> 					x=a[j];
> 					y=b[j];
> 					flag=1;
> 					
> 				}
> 			}
> 		}
> 		if(flag==1){
> 			cout<<"The gopher can escape through the hole at (";
> 			printf("%.3f",x);
> 			cout<<",";
> 			printf("%.3f",y);
> 			cout<<")."<<endl;
> 		}
> 		if(flag==0){
> 			cout<<"The gopher cannot escape."<<endl;
> 		}
> 	}
> 	
> 	return 0;
> }

• Re:我的程序不知道什么地方错了！那位兄弟帮着看一下呢？谢谢！ <内有程序〉 (56) kevin655 2006-03-28 14:18:59
  • haha 居然成功了 (0) kevin655 2006-03-28 14:36:36
    • Re:haha 居然成功了 (12) kevin655 2006-03-28 14:36:57