HDU 2056 Rectangles
2013-07-04 17:31
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第二次写的代码:
第一次写的代码
#include<stdio.h>
#include<math.h>
int main()
{
double x1,y1,x2,y2,x3,y3,x4,y4;
while(scanf("%lf%lf%lf%lf%lf%lf%lf%lf",&x1,&y1,&x2,&y2,&x3,&y3,&x4,&y4)!=EOF)
{
if(x1>x2){
x1=x1+x2;
x2=x1-x2;
x1=x1-x2;
}
if(y1>y2){
y1=y1+y2;
y2=y1-y2;
y1=y1-y2;
}
if(x3>x4){
x3=x3+x4;
x4=x3-x4;
x3=x3-x4;
}
if(y3>y4){
y3=y3+y4;
y4=y3-y4;
y3=y3-y4;
}
double maxy,maxx;
maxx=x1>x3?x1:x3;
maxy=y1>y3?y1:y3;
double minx,miny;
minx=x2<x4?x2:x4;
miny=y2<y4?y2:y4;
if(minx<=maxx||miny<=maxy)
printf("0.00\n");
else{
double s=fabs((miny-maxy))*fabs(minx-maxx);
printf("%.2f\n",s);
}
}
return 0;
}
#include<iostream> #include<algorithm> #include<cstdio> using namespace std; struct node { double x,y; }; bool cmpx (node a,node b) { return a.x<b.x; } bool cmpy (node a,node b) { return a.y<b.y; } int main() { int i,j; node m[4]; while(cin>>m[0].x>>m[0].y>>m[1].x>>m[1].y>>m[2].x>>m[2].y>>m[3].x>>m[3].y) { sort(m,m+2,cmpx); if((m[1].y-m[0].y)/(m[1].x-m[0].x)<0) { swap(m[1].y,m[0].y); } sort(m+2,m+4,cmpx); if((m[3].y-m[2].y)/(m[3].x-m[2].x)<0) { swap(m[3].y,m[2].y); } // cout<<m[0].y<<m[1].y<<m[2].y<<m[3].y; double x1,x2,x3,x4,y1,y2,y3,y4; x1=m[0].x; y1=m[0].y; x2=m[1].x; y2=m[1].y; x3=m[2].x; y3=m[2].y; x4=m[3].x; y4=m[3].y; sort(m,m+4,cmpx); if(m[1].x!=x2&&m[1].x!=x4) { x1=m[1].x;x2=m[2].x; sort(m,m+4,cmpy); if(m[1].y!=y2&&m[1].y!=y4) { y1=m[1].y;y2=m[2].y; printf("%.2lf\n",(y2-y1)*(x2-x1)); } else cout<<"0.00"<<endl; } else cout<<"0.00"<<endl; } return 0; }
第一次写的代码
#include<stdio.h>
#include<math.h>
int main()
{
double x1,y1,x2,y2,x3,y3,x4,y4;
while(scanf("%lf%lf%lf%lf%lf%lf%lf%lf",&x1,&y1,&x2,&y2,&x3,&y3,&x4,&y4)!=EOF)
{
if(x1>x2){
x1=x1+x2;
x2=x1-x2;
x1=x1-x2;
}
if(y1>y2){
y1=y1+y2;
y2=y1-y2;
y1=y1-y2;
}
if(x3>x4){
x3=x3+x4;
x4=x3-x4;
x3=x3-x4;
}
if(y3>y4){
y3=y3+y4;
y4=y3-y4;
y3=y3-y4;
}
double maxy,maxx;
maxx=x1>x3?x1:x3;
maxy=y1>y3?y1:y3;
double minx,miny;
minx=x2<x4?x2:x4;
miny=y2<y4?y2:y4;
if(minx<=maxx||miny<=maxy)
printf("0.00\n");
else{
double s=fabs((miny-maxy))*fabs(minx-maxx);
printf("%.2f\n",s);
}
}
return 0;
}
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