Submission #1000806
Source Code Expand
#include <bits/stdc++.h>
#define SZ(X) ((int)(X).size())
#define ALL(X) (X).begin(), (X).end()
#define REP(I, N) for (int I = 0; I < (N); ++I)
#define REPP(I, A, B) for (int I = (A); I < (B); ++I)
#define RI(X) scanf("%d", &(X))
#define RII(X, Y) scanf("%d%d", &(X), &(Y))
#define RIII(X, Y, Z) scanf("%d%d%d", &(X), &(Y), &(Z))
#define DRI(X) int (X); scanf("%d", &X)
#define DRII(X, Y) int X, Y; scanf("%d%d", &X, &Y)
#define DRIII(X, Y, Z) int X, Y, Z; scanf("%d%d%d", &X, &Y, &Z)
#define RS(X) scanf("%s", (X))
#define CASET int ___T, case_n = 1; scanf("%d ", &___T); while (___T-- > 0)
#define MP make_pair
#define PB push_back
#define MS0(X) memset((X), 0, sizeof((X)))
#define MS1(X) memset((X), -1, sizeof((X)))
#define LEN(X) strlen(X)
#define PII pair<int,int>
#define VI vector<int>
#define VPII vector<pair<int,int> >
#define PLL pair<long long,long long>
#define VPLL vector<pair<long long,long long> >
#define F first
#define S second
typedef long long LL;
using namespace std;
const double EPS=1e-12;
const double PI=acos(-1);
struct Point{
double x,y;
Point(double _x=0,double _y=0){x=_x;y=_y;}
Point operator-(const Point& b){return Point(x-b.x,y-b.y);}
Point operator+(const Point& b){return Point(x+b.x,y+b.y);}
Point operator*(const double v){return Point(x*v,y*v);}
double operator*(const Point& b){return x*b.y-y*b.x;}
double operator^(const Point& b){return x*b.x+y*b.y;}
bool operator<(const Point& b)const{
if(fabs(x-b.x)<EPS){
if(fabs(y-b.y)<EPS)return 0;
return y<b.y;
}
return x<b.x;
}
double angle(){return atan2(y,x);}
double dis(){return sqrt(x*x+y*y);}
Point rotate(double v){return Point(x*cos(v)-y*sin(v),x*sin(v)+y*cos(v));}
Point unit(){return (*this)*(1./dis());}
void scan(){scanf("%lf%lf",&x,&y);}
void print(){printf("%.9f %.9f\n",x,y);}
}p[3];
Point gg(Point X,Point V1,Point V2,double r){
double aa=V1.angle()-V2.angle();
if(aa<0)aa=-aa;
if(aa>PI)aa=2*PI-aa;
aa*=0.5;
double dd=r/sin(aa);
return X+((V1.unit()+V2.unit()).unit()*dd);
}
double ma;
double f(Point X,Point V1,Point V2,Point Y,Point V3,Point V4){
double ll=0,rr=ma;
REP(k,30){
double mm=(ll+rr)*0.5;
Point O1=gg(X,V1,V2,mm);
Point O2=gg(Y,V3,V4,mm);
if((O1-O2).dis()>mm*2)ll=mm;
else rr=mm;
}
return (ll+rr)*0.5;
}
int main(){
REP(i,3)p[i].scan();
VI d[3];
d[0].PB(1);d[0].PB(2);
d[1].PB(0);d[1].PB(2);
d[2].PB(0);d[2].PB(1);
double a=(p[1]-p[0]).dis();
double b=(p[2]-p[0]).dis();
double c=(p[2]-p[1]).dis();
double s=(a+b+c)*0.5;
ma=sqrt(s*(s-a)*(s-b)*(s-c))/s;
printf("[%.12f]\n",ma);
double an=0;
REP(i,3)REP(j,i){
an=max(an,f(p[i],(p[d[i][0]]-p[i]),(p[d[i][1]]-p[i])
,p[j],(p[d[j][0]]-p[j]),(p[d[j][1]]-p[j])));
}
printf("%.12f\n",an);
return 0;
}
Submission Info
Submission Time
2016-11-28 13:05:57+0900
Task
B - Inscribed Bicycle
User
dreamoon
Language
C++14 (GCC 5.4.1)
Score
0
Code Size
3030 Byte
Status
WA
Exec Time
5 ms
Memory
384 KB
Compile Error
./Main.cpp: In member function ‘void Point::scan()’:
./Main.cpp:49:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
void scan(){scanf("%lf%lf",&x,&y);}
^
Judge Result
Set Name
Sample
All
Score / Max Score
0 / 0
0 / 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
WA
5 ms
384 KB
001.txt
WA
2 ms
256 KB
002.txt
WA
2 ms
256 KB
003.txt
WA
2 ms
256 KB
004.txt
WA
2 ms
256 KB
005.txt
WA
2 ms
256 KB
006.txt
WA
2 ms
256 KB
007.txt
WA
2 ms
256 KB
008.txt
WA
2 ms
256 KB
009.txt
WA
2 ms
256 KB
010.txt
WA
2 ms
256 KB
011.txt
WA
2 ms
256 KB
012.txt
WA
2 ms
256 KB
013.txt
WA
2 ms
256 KB
014.txt
WA
2 ms
256 KB
015.txt
WA
2 ms
256 KB
example0.txt
WA
2 ms
256 KB
example1.txt
WA
2 ms
256 KB