Submission #1406491
Source Code Expand
#include<bits/stdc++.h> #define DB double #define N 16 using namespace std; DB gdis(int x1,int y1,int x2,int y2){ return sqrt((x1-x2)*1LL*(x1-x2)+(y1-y2)*1LL*(y1-y2)); } DB dis[N][N]; int x[N],y[N],a[N]; int n; DB sum[(1<<N)+3]; struct edge{ int f,t; DB dis; bool operator <(const edge &b)const{ return dis<b.dis; } }e[N*N*2];int ecnt; int bcj[N]; int ff(int x) { return bcj[x]==x? x:bcj[x]=ff(bcj[x]); } int main(){ scanf("%d",&n); for(int i=1;i<=n;i++) scanf("%d%d%d",&x[i],&y[i],&a[i]); for(int i=0;i<n;i++) for(int j=0;j<n;j++) dis[i][j]=gdis(x[i+1],y[i+1],x[j+1],y[j+1]); for(int i=0;i<(1<<n);i++){ ecnt=0; for(int j=0;j<n;j++) if((i>>j)&1){ sum[i]+=a[j+1]; for(int k=j+1;k<n;k++) if((i>>k)&1) e[++ecnt]=(edge){j,k,dis[j][k]}; } sort(e+1,e+ecnt+1); for(int j=0;j<n;j++) bcj[j]=j; for(int j=1;j<=ecnt;j++){ if(ff(e[j].f)!=ff(e[j].t)){ sum[i]-=e[j].dis; bcj[ff(e[j].f)]=ff(e[j].t); } } sum[i]/=__builtin_popcount(i); } for(int i=0;i<(1<<n);i++) for(int j=i;j;j=(j-1)&i) sum[i]=max(sum[i],min(sum[j],sum[i^j])); printf("%.10lf\n",(double)sum[(1<<n)-1]); return 0; }
Submission Info
Submission Time | |
---|---|
Task | E - Water Distribution |
User | Wuvin |
Language | C++14 (GCC 5.4.1) |
Score | 1000 |
Code Size | 1207 Byte |
Status | AC |
Exec Time | 96 ms |
Memory | 640 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:28:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:29:57: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1;i<=n;i++) scanf("%d%d%d",&x[i],&y[i],&a[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1000 / 1000 | ||||
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, 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, 032.txt, 033.txt, 034.txt, 035.txt, 036.txt, 037.txt, 038.txt, 039.txt, 040.txt, 041.txt, 042.txt, 043.txt, example0.txt, example1.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
000.txt | AC | 91 ms | 512 KB |
001.txt | AC | 91 ms | 512 KB |
002.txt | AC | 90 ms | 512 KB |
003.txt | AC | 91 ms | 512 KB |
004.txt | AC | 93 ms | 512 KB |
005.txt | AC | 89 ms | 512 KB |
006.txt | AC | 93 ms | 512 KB |
007.txt | AC | 90 ms | 512 KB |
008.txt | AC | 92 ms | 512 KB |
009.txt | AC | 92 ms | 512 KB |
010.txt | AC | 93 ms | 512 KB |
011.txt | AC | 94 ms | 512 KB |
012.txt | AC | 93 ms | 512 KB |
013.txt | AC | 91 ms | 512 KB |
014.txt | AC | 93 ms | 512 KB |
015.txt | AC | 96 ms | 512 KB |
016.txt | AC | 90 ms | 512 KB |
017.txt | AC | 93 ms | 512 KB |
018.txt | AC | 92 ms | 512 KB |
019.txt | AC | 90 ms | 512 KB |
020.txt | AC | 86 ms | 512 KB |
021.txt | AC | 90 ms | 512 KB |
022.txt | AC | 88 ms | 512 KB |
023.txt | AC | 86 ms | 512 KB |
024.txt | AC | 86 ms | 512 KB |
025.txt | AC | 84 ms | 512 KB |
026.txt | AC | 87 ms | 512 KB |
027.txt | AC | 86 ms | 512 KB |
028.txt | AC | 86 ms | 512 KB |
029.txt | AC | 86 ms | 512 KB |
030.txt | AC | 86 ms | 512 KB |
031.txt | AC | 87 ms | 512 KB |
032.txt | AC | 84 ms | 512 KB |
033.txt | AC | 85 ms | 512 KB |
034.txt | AC | 82 ms | 512 KB |
035.txt | AC | 85 ms | 512 KB |
036.txt | AC | 85 ms | 640 KB |
037.txt | AC | 84 ms | 512 KB |
038.txt | AC | 85 ms | 512 KB |
039.txt | AC | 85 ms | 512 KB |
040.txt | AC | 1 ms | 256 KB |
041.txt | AC | 1 ms | 256 KB |
042.txt | AC | 1 ms | 256 KB |
043.txt | AC | 1 ms | 256 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 88 ms | 512 KB |