Submission #2894505
Source Code Expand
#include <bits/stdc++.h>
#include<iostream>
#include<cstdio>
#include<vector>
#include<queue>
#include<map>
#include<cstring>
#include<string>
#include <math.h>
#include<algorithm>
// #include <boost/multiprecision/cpp_int.hpp>
#include<functional>
#define int long long
#define inf 1000000007
#define pa pair<int,int>
#define ll long long
#define pal pair<double,double>
#define ppap pair<pa,int>
#define PI 3.14159265358979323846
#define paa pair<int,char>
#define mp make_pair
#define pb push_back
#define EPS (1e-10)
#define equals(a,b) (fabs((a)-(b))<EPS)
int dx[4]={0,-1,0,1};
int dy[4]={1,0,-1,0};
using namespace std;
class pa3{
public:
int x,y,z;
pa3(int x=0,int y=0,int z=0):x(x),y(y),z(z) {}
bool operator < (const pa3 &p) const{
if(x!=p.x) return x<p.x;
if(y!=p.y) return y<p.y;
return z<p.z;
//return x != p.x ? x<p.x: y<p.y;
}
bool operator > (const pa3 &p) const{
if(x!=p.x) return x>p.x;
if(y!=p.y) return y>p.y;
return z>p.z;
//return x != p.x ? x<p.x: y<p.y;
}
bool operator == (const pa3 &p) const{
return x==p.x && y==p.y && z==p.z;
}
bool operator != (const pa3 &p) const{
return !( x==p.x && y==p.y && z==p.z);
}
};
class pa4{
public:
double x;
int y,z,w;
pa4(double x=0,int y=0,int z=0,int w=0):x(x),y(y),z(z),w(w) {}
bool operator < (const pa4 &p) const{
if(x!=p.x) return x<p.x;
if(y!=p.y) return y<p.y;
if(z!=p.z)return z<p.z;
return w<p.w;
//return x != p.x ? x<p.x: y<p.y;
}
bool operator > (const pa4 &p) const{
if(x!=p.x) return x>p.x;
if(y!=p.y) return y>p.y;
if(z!=p.z)return z>p.z;
return w>p.w;
//return x != p.x ? x<p.x: y<p.y;
}
bool operator == (const pa4 &p) const{
return x==p.x && y==p.y && z==p.z &&w==p.w;
}
};
class pa2{
public:
int x,y;
pa2(int x=0,int y=0):x(x),y(y) {}
pa2 operator + (pa2 p) {return pa2(x+p.x,y+p.y);}
pa2 operator - (pa2 p) {return pa2(x-p.x,y-p.y);}
bool operator < (const pa2 &p) const{
return y != p.y ? y<p.y: x<p.x;
}
bool operator > (const pa2 &p) const{
return x != p.x ? x<p.x: y<p.y;
}
bool operator == (const pa2 &p) const{
return abs(x-p.x)==0 && abs(y-p.y)==0;
}
bool operator != (const pa2 &p) const{
return !(abs(x-p.x)==0 && abs(y-p.y)==0);
}
};
#define ppa pair<int,pas>
class Point{
public:
double x,y;
Point(double x=0,double y=0):x(x),y(y) {}
Point operator + (Point p) {return Point(x+p.x,y+p.y);}
Point operator - (Point p) {return Point(x-p.x,y-p.y);}
Point operator * (double a) {return Point(x*a,y*a);}
Point operator / (double a) {return Point(x/a,y/a);}
double absv() {return sqrt(norm());}
double norm() {return x*x+y*y;}
bool operator < (const Point &p) const{
return x != p.x ? x<p.x: y<p.y;
}
bool operator == (const Point &p) const{
return fabs(x-p.x)<EPS && fabs(y-p.y)<EPS;
}
};
typedef Point Vector;
#define pl pair<int,pas>
struct Segment{
Point p1,p2;
};
double dot(Vector a,Vector b){
return a.x*b.x+a.y*b.y;
}
double cross(Vector a,Vector b){
return a.x*b.y-a.y*b.x;
}
bool parareru(Point a,Point b,Point c,Point d){
// if(abs(cross(a-b,d-c))<EPS)cout<<"dd "<<cross(a-b,d-c)<<endl;
return abs(cross(a-b,d-c))<EPS;
}
double distance_ls_p(Point a, Point b, Point c) {
if ( dot(b-a, c-a) < EPS ) return (c-a).absv();
if ( dot(a-b, c-b) < EPS ) return (c-b).absv();
return abs(cross(b-a, c-a)) / (b-a).absv();
}
bool is_intersected_ls(Segment a,Segment b) {
if(a.p1==b.p1||a.p2==b.p1||a.p1==b.p2||a.p2==b.p2) return false;
if(parareru((a.p2),(a.p1),(a.p1),(b.p2))&¶reru((a.p2),(a.p1),(a.p1),(b.p1))){
// cout<<"sss"<<endl;
if(dot(a.p1-b.p1,a.p1-b.p2)<EPS) return true;
if(dot(a.p2-b.p1,a.p2-b.p2)<EPS) return true;
if(dot(a.p1-b.p1,a.p2-b.p1)<EPS) return true;
if(dot(a.p1-b.p2,a.p2-b.p2)<EPS) return true;
return false;
}
else return ( cross(a.p2-a.p1, b.p1-a.p1) * cross(a.p2-a.p1, b.p2-a.p1) < EPS ) && ( cross(b.p2-b.p1, a.p1-b.p1) * cross(b.p2-b.p1, a.p2-b.p1) < EPS );
}
double segment_dis(Segment a,Segment b){
if(is_intersected_ls(a,b))return 0;
double r=distance_ls_p(a.p1, a.p2, b.p1);
r=min(r,distance_ls_p(a.p1, a.p2, b.p2));
r=min(r,distance_ls_p(b.p1, b.p2, a.p2));
r=min(r,distance_ls_p(b.p1, b.p2, a.p1));
return r;
}
Point intersection_ls(Segment a, Segment b) {
Point ba = b.p2-b.p1;
double d1 = abs(cross(ba, a.p1-b.p1));
double d2 = abs(cross(ba, a.p2-b.p1));
double t = d1 / (d1 + d2);
return a.p1 + (a.p2-a.p1) * t;
}
string itos( int i ) {
ostringstream s ;
s << i ;
return s.str() ;
}
int gcd(int v,int b){
if(v>b) return gcd(b,v);
if(v==b) return b;
if(b%v==0) return v;
return gcd(v,b%v);
}
double distans(double x1,double y1,double x2,double y2){
double rr=(x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);
return sqrt(rr);
}
int mod;
int pr[2010];
int inv[2010];
int beki(int wa,int rr,int warukazu){
if(rr==0) return 1%warukazu;
if(rr==1) return wa%warukazu;
if(rr%2==1) return (beki(wa,rr-1,warukazu)*wa)%warukazu;
int zx=beki(wa,rr/2,warukazu);
return (zx*zx)%warukazu;
}
/*
double bekid(double w,int r){
if(r==0) return 1.0;
if(r==1) return w;
if(r%2) return bekid(w,r-1)*w;
double f=bekid(w,r/2);
return f*f;
}*/
/*
int comb(int nn,int rr){
int r=pr[nn]*inv[rr];
r%=mod;
r*=inv[nn-rr];
r%=mod;
return r;
}
*/
void gya(int ert){
pr[0]=1;
for(int i=1;i<ert;i++){
pr[i]=(pr[i-1]*i)%mod;
}
for(int i=0;i<ert;i++) inv[i]=beki(pr[i],mod-2,mod);
}
// cin.tie(0);
// ios::sync_with_stdio(false);
//priority_queue<pa3,vector<pa3>,greater<pa3>> pq;
//sort(ve.begin(),ve.end(),greater<int>());
//----------------kokomade tenpure------------
signed main(){
cin.tie(0);
ios::sync_with_stdio(false);
double ans=0;
int n;
cin>>n;
double sho,l;
cin>>sho>>l;
while(n){
ans+=(sho+sho+(2*n-1.0)*l)/(2+0.0);
sho=((2*n+2.0)*sho+5.0*l)/(2.0*n);
l=(n+2.0)*l/(n+0.0);
n--;
}
printf("%.10lf\n",ans);
return 0;
}
Submission Info
Submission Time |
|
Task |
C - Pushing Balls |
User |
smiken |
Language |
C++14 (GCC 5.4.1) |
Score |
1000 |
Code Size |
13459 Byte |
Status |
AC |
Exec Time |
3 ms |
Memory |
256 KB |
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
1000 / 1000 |
Status |
|
|
Set Name |
Test Cases |
Sample |
example0.txt, example1.txt, example2.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, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt, example0.txt, example1.txt, example2.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 |
3 ms |
256 KB |
012.txt |
AC |
2 ms |
256 KB |
013.txt |
AC |
2 ms |
256 KB |
014.txt |
AC |
2 ms |
256 KB |
015.txt |
AC |
3 ms |
256 KB |
016.txt |
AC |
3 ms |
256 KB |
017.txt |
AC |
2 ms |
256 KB |
018.txt |
AC |
3 ms |
256 KB |
019.txt |
AC |
2 ms |
256 KB |
020.txt |
AC |
3 ms |
256 KB |
021.txt |
AC |
3 ms |
256 KB |
022.txt |
AC |
3 ms |
256 KB |
023.txt |
AC |
3 ms |
256 KB |
024.txt |
AC |
3 ms |
256 KB |
025.txt |
AC |
3 ms |
256 KB |
026.txt |
AC |
3 ms |
256 KB |
027.txt |
AC |
3 ms |
256 KB |
028.txt |
AC |
3 ms |
256 KB |
029.txt |
AC |
3 ms |
256 KB |
030.txt |
AC |
3 ms |
256 KB |
031.txt |
AC |
3 ms |
256 KB |
example0.txt |
AC |
1 ms |
256 KB |
example1.txt |
AC |
1 ms |
256 KB |
example2.txt |
AC |
1 ms |
256 KB |