| ||||||||||
| 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 | |||||||||
哥们儿谢过,借你码改的。。。越来越懒……In Reply To:OLE 什么意思 帮帮忙<附原码> Posted by:d4114 at 2007-05-05 22:49:07 #include <stdio.h>
#include<math.h>
int main()
{
double x[4],y[4];
while(scanf("%lf%lf%lf%lf%lf%lf%lf%lf",&x[0],&y[0],&x[1],&y[1],&x[2],&y[2],&x[3],&y[3])!=EOF)
{
int mi=-1;
for(int i=0;i<4;i++)
{
for(int j=i+1;j<4;j++)
if(fabs(x[i]-x[j])<1e-8&&fabs(y[i]-y[j])<1e-8)
{
mi=i;
break;
}
if(mi!=-1) break;
}
double hx=x[0]+x[1]+x[2]+x[3],hy=y[0]+y[1]+y[2]+y[3];
hx-=2*x[mi],hy-=2*y[mi];
printf("%.3f %.3f\n",hx-x[mi],hy-y[mi]);
}
}
Followed by:
Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator