delete pics to save space

2.1001.cpp

@@ -0,0 +1,36 @@
+#include<cstdio>
+#include<cmath>
+#include<algorithm>
+using namespace std;
+const int maxn=105;
+int n,kase;
+int x[maxn],y[maxn],z[maxn],r[maxn];
+double d[maxn][maxn];
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	while(scanf("%d",&n)==1&&n!=-1)
+	{
+		for(int i=1;i<=n;i++) scanf("%d%d%d%d",x+i,y+i,z+i,r+i);
+		for(int i=n+1;i<=n+2;i++)
+		{
+			scanf("%d%d%d",x+i,y+i,z+i);
+			r[i]=0;
+		}
+		n+=2;
+		for(int i=1;i<=n;i++)
+			for(int j=1;j<=n;j++)
+				d[i][j]=max(0.0,sqrt((x[i]-x[j])*(x[i]-x[j])
+									+(y[i]-y[j])*(y[i]-y[j])
+									+(z[i]-z[j])*(z[i]-z[j]))
+								-r[i]-r[j]);
+		for(int k=1;k<=n;k++)
+			for(int i=1;i<=n;i++)
+				for(int j=1;j<=n;j++)
+					d[i][j]=min(d[i][j],d[i][k]+d[k][j]);
+		printf("Cheese %d: Travel time = %.0lf sec\n",++kase,d[n-1][n]*10);
+	}
+	return 0;
+}