#include "iostream.h"
#include "stdio.h"

int main(int argc, char* argv[])
{
	double x[4],y[4],a,b,k[2];
	while(cin>>x[0]>>y[0])
	{
		for(int i=1;i<=3;i++)
			cin>>x[i]>>y[i];
    	
		if((x[0]-x[1]!=0)&&((x[2]-x[3])!=0))
		{	k[0]=(y[0]-y[1])/(x[0]-x[1]);
    	    k[1]=(y[1]-y[3])/(x[1]-x[3]);
			a=(y[3]-y[0]+x[0]*k[1]-x[3]*k[0])/(k[1]-k[0]);
	//		b=-(k[0]*x[3]-a*k[0]+y[3]);
			b=y[0]-k[1]*x[0]+a*k[1];
		}else
			if((x[0]-x[1]==0)&&((x[2]-x[3])!=0))
			{
				a=x[3];
				b=y[3]-y[1]+y[0];
			}else
				if((x[0]-x[1]!=0)&&((x[2]-x[3])==0))
				{
					a=x[0]-x[1]+x[3];
					b=y[0];
				}else 
				{
					a=x[3];
					b=y[0];
				}


		printf("%.3f %.3f\n",a,b);
	}
	return 0;
}

• 过了sample就对，那还要oj做什么？ (794) semonteer 2005-10-03 18:37:52
• Re:验证数据都对,怎么就wa了呢/ (59) wrong123 2006-01-14 22:49:07