Submission #3593381
Source Code Expand
/* 宣告—— 汝身在我之下,托付吾之命运于汝之剑, 遵从圣杯之名,若汝遵从此意志此理,回应吧。 在此起誓,吾是成就世间一切行善之人,吾是肃清世间一切罪恶之人, 被狂乱之槛所囚的囚徒。吾是此锁链的操纵者, 汝为身缠三大言灵之七天,从抑止之轮显现吧,天秤之守护者! */ #include<iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<cassert> #define ll long long using namespace std; inline int read(){ int re=0,flag=1;char ch=getchar(); while(!isdigit(ch)){ if(ch=='-') flag=-1; ch=getchar(); } while(isdigit(ch)) re=(re<<1)+(re<<3)+ch-'0',ch=getchar(); return re*flag; } long double n,nn,d,delta; long double calc(long double st,long double del,long double tot){ return (st+del*(tot+1.0)/2.0); } int main(){ nn=n=read();d=read();delta=read();d-=delta; long double ans=0;n*=2.0; for(int i=1;i<=nn;i++){ ans+=calc(d,delta,n); // cout<<i<<' '<<d<<' '<<delta<<' '<<ans<<'\n'; d=(3.0*delta+(n+2.0)*d)/(n); delta=((n+4.0)*delta)/(n); n-=2.0; } printf("%.15lf\n",(double)ans); }
Submission Info
Submission Time | |
---|---|
Task | C - Pushing Balls |
User | dedicatus545 |
Language | C++14 (GCC 5.4.1) |
Score | 1000 |
Code Size | 1173 Byte |
Status | AC |
Exec Time | 4 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 | 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 | 4 ms | 256 KB |
025.txt | AC | 4 ms | 256 KB |
026.txt | AC | 4 ms | 256 KB |
027.txt | AC | 4 ms | 256 KB |
028.txt | AC | 4 ms | 256 KB |
029.txt | AC | 4 ms | 256 KB |
030.txt | AC | 3 ms | 256 KB |
031.txt | AC | 4 ms | 256 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |
example2.txt | AC | 1 ms | 256 KB |