Submission #2374705
Source Code Expand
#include<bits/stdc++.h>
using namespace std;
#define all(vec) vec.begin(),vec.end()
typedef long long int ll;
typedef pair<int,int> P;
typedef pair<P,P> PP;
const ll MOD=10000;
const ll INF=1000000010;
const int MAX=100001;
int dx[8]={0,1,0,-1,1,-1,1,-1};
int dy[8]={1,0,-1,0,1,-1,-1,1};
double dist(double x1,double y1,double x2,double y2){
return sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
}
int main(){
double x[3],y[3];
for(int i=0;i<3;i++){
cin>>x[i]>>y[i];
}
double d[3];
double ma=0;
for(int i=0;i<3;i++){
d[i]=dist(x[i],y[i],x[(i+1)%3],y[(i+1)%3]);
ma=max(d[i],ma);
}
double ss=(d[0]+d[1]+d[2])/2.0;
double s=sqrt(ss*(ss-d[0])*(ss-d[1])*(ss-d[2]));
double r=2.0*s/(d[0]+d[1]+d[2]);
double ok=0.0;double ng=100010.0;
int c=10000;
while(c--){
double mid=(ok+ng)/2;
if((1-mid/r)*ma>=2*mid){
ok=mid;
}else{
ng=mid;
}
}
printf("%.12f\n",ok);
return 0;
}
Submission Info
Submission Time |
|
Task |
B - Inscribed Bicycle |
User |
TAISA_ |
Language |
C++14 (GCC 5.4.1) |
Score |
500 |
Code Size |
931 Byte |
Status |
AC |
Exec Time |
1 ms |
Memory |
256 KB |
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
500 / 500 |
Status |
|
|
Set Name |
Test Cases |
Sample |
example0.txt, example1.txt |
All |
000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, example0.txt, example1.txt |
Case Name |
Status |
Exec Time |
Memory |
000.txt |
AC |
1 ms |
256 KB |
001.txt |
AC |
1 ms |
256 KB |
002.txt |
AC |
1 ms |
256 KB |
003.txt |
AC |
1 ms |
256 KB |
004.txt |
AC |
1 ms |
256 KB |
005.txt |
AC |
1 ms |
256 KB |
006.txt |
AC |
1 ms |
256 KB |
007.txt |
AC |
1 ms |
256 KB |
008.txt |
AC |
1 ms |
256 KB |
009.txt |
AC |
1 ms |
256 KB |
010.txt |
AC |
1 ms |
256 KB |
011.txt |
AC |
1 ms |
256 KB |
012.txt |
AC |
1 ms |
256 KB |
013.txt |
AC |
1 ms |
256 KB |
014.txt |
AC |
1 ms |
256 KB |
015.txt |
AC |
1 ms |
256 KB |
example0.txt |
AC |
1 ms |
256 KB |
example1.txt |
AC |
1 ms |
256 KB |