-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy path395A.cpp
More file actions
66 lines (63 loc) · 1.62 KB
/
395A.cpp
File metadata and controls
66 lines (63 loc) · 1.62 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
#include<iostream>
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
using namespace std;
int main(){
int x[10],y[10];
int n,area,h,l,s,a,b,c,w,fl;
while(cin>>n){
for(int i=0;i<n;i++)
cin>>x[i]>>y[i];
if(n==1||(n==2&&(x[0]==x[1]||y[0]==y[1]))){
cout<<"-1"<<endl;
}
else if(n==2){
h=abs(y[0]-y[1]);
l=abs(x[0]-x[1]);
area=h*l;
cout<<area<<endl;
}
else if(n==3){
// a=(int)sqrt((x[0]-x[1])*(x[0]-x[1])+(y[0]-y[1])*(y[0]-y[1]));
// b=(int)sqrt((x[1]-x[2])*(x[1]-x[2])+(y[1]-y[2])*(y[1]-y[2]));
// c=(int)sqrt((x[2]-x[0])*(x[2]-x[0])+(y[2]-y[0])*(y[2]-y[0]));
w=-1; h=-1; fl=0;
for(int j=0;j<4;j++)
for(int i=0;i<4;i++){
if(x[i]==x[j]&&i!=j){
w=abs(y[i]-y[j]);
}
if(y[i]==y[j]&&i!=j){
h=abs(x[i]-x[j]);
}
}
if(w==-1||h==-1) {
cout<<"-1"<<endl;
}
else {
area=w*h;
cout<<area<<endl;
}
}
else{
w=-1; h=-1;
for(int j=0;j<4;j++)
for(int i=0;i<4;i++){
if(x[i]==x[j]&&i!=j){
w=abs(y[i]-y[j]);
}
if(y[i]==y[j]&&i!=j){
h=abs(x[i]-x[j]);
}
}
if(w==-1||h==-1) {
cout<<"-1"<<endl;
}
else {
area=w*h;
cout<<area<<endl;
}
}
}
}