Submission #1864244
Source Code Expand
#include <iostream> #include <cstdio> #include <cstring> #include <cassert> #include <cctype> using namespace std; typedef long long lint; typedef long double ld; #define cout cerr #define ni (next_num<int>()) template<class T>inline T next_num(){ T i=0;char c; while(!isdigit(c=getchar())&&c!='-'); bool flag=c=='-'; flag?c=getchar():0; while(i=i*10-'0'+c,isdigit(c=getchar())); return flag?-i:i; } template<class T1,class T2>inline void apmax(T1 &a,const T2 &b){if(a<b)a=b;} template<class T1,class T2>inline void apmin(T1 &a,const T2 &b){if(b<a)a=b;} const int N=200010; int main(){ int n=ni; ld a=ni,d=ni,ans=0; a-=d; for(;n>=1;n--){ ans+=a+(n+0.5)*d; ld na=a+(a*2+d*3)/(n<<1),nd=(1+2.0/n)*d; a=na,d=nd; } printf("%.15Lf\n",ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Pushing Balls |
User | sshockwave |
Language | C++14 (GCC 5.4.1) |
Score | 1000 |
Code Size | 796 Byte |
Status | AC |
Exec Time | 4 ms |
Memory | 384 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 | 4 ms | 384 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 | 3 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 | 4 ms | 256 KB |
021.txt | AC | 4 ms | 256 KB |
022.txt | AC | 4 ms | 256 KB |
023.txt | AC | 4 ms | 256 KB |
024.txt | AC | 3 ms | 256 KB |
025.txt | AC | 4 ms | 256 KB |
026.txt | AC | 3 ms | 256 KB |
027.txt | AC | 4 ms | 256 KB |
028.txt | AC | 3 ms | 256 KB |
029.txt | AC | 3 ms | 256 KB |
030.txt | AC | 4 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 |