OJ Board

I test many groups of I/O but I still get WA in this problem.
Why? (under this line is my code.)


#include<iostream.h>


int main()
{
int n;
double x1,y1,x2,y2;
double sqx1,sqy1,sqx2,sqy2,temp;
double a,b;
double sx,sy,sxx,syy;
cin>>n;
while(n--)
{
cin>>x1>>y1>>x2>>y2>>sqx1>>sqy1>>sqx2 ...