hdoj-2056-Rectangles

#include<stdio.h>
#include<algorithm>
using namespace std;
int main()
{
    double x[5],y[5];
    while(scanf("%lf%lf%lf%lf%lf%lf%lf%lf",&x[1],&y[1],&x[2],&y[2],&x[3],&y[3],&x[4],&y[4])!=EOF)
    {
        if(x[2]<x[3]||x[4]<x[1]||y[2]<y[3]||y[4]<y[1])//相离的情况
            printf("0.00
");
        else
        {
            if(x[1]>=x[3]&&x[2]<=x[4]&&y[1]>=y[3]&&y[2]<=y[4])//1在2内
                printf("%.2lf
",(x[2]-x[1])*(y[2]-y[1]));
            else if(x[1]<x[3]&&x[2]>x[4]&&y[1]<y[3]&&y[2]>y[4])//2在1内
                printf("%.2lf
",(x[4]-x[3])*(y[4]-y[3]));
            else
            {
                sort(x+1,x+5);
                sort(y+1,y+5);
                printf("%.2lf
",(x[3]-x[2])*(y[3]-y[2]));//相交的情况
            }
        }
    }
    return 0;
}

这个代码wa了，，，大神帮忙看看漏哪了？