| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 262807 | eohomegrownapps | 미술 수업 (IOI13_artclass) | C++14 | 126 ms | 6324 KiB |
이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "artclass.h"
#include <bits/stdc++.h>
using namespace std;
typedef long double ld;
typedef long long ll;
int size = 5;
ld variance_data[4][9][3]={{{5.2824411498991095, 4.512041944986602, 3.9877517923801165},{4.109953000317832, 3.5251639497497593, 2.583329658299319},{4.0599414166232135, 3.214454227068947, 2.8794415155533164},{3.8187459500085006, 3.1251317597985238, 2.7258797446418295},{5.06922950704298, 4.781142315342459, 4.74983918981773},{5.66371141358102, 5.039144321323099, 3.1591464054282348},{4.552949101016332, 4.231009363821283, 4.527341573779875},{3.714847573114318, 3.659962363144, 3.586130927655374},{5.222052247854811, 2.4667857932999437, 2.195731839128234}},{{2.4666536176908296, 2.0629830581356257, 1.4699639183452446},{1.8134614491475296, 1.5684693984691638, 0.8818072983426067},{2.8088787223261735, 1.384751344990176, 0.5639851297542415},{1.0898217800933587, 1.2488571281603842, 0.7112425318447758},{1.1906425279446673, 1.0783969918239458, 0.3648423723862336},{2.347189370639743, 2.1565854065971775, 0.9459288624434778},{2.771386382611378, 2.0108536416244855, 1.388484315802357},{1.4457846705182154, 1.5124429273172633, 0.5888221288145326},{0.6145636792642141, 1.151643323705573, 0.713790344764571}},{{3.2062311073378176, 2.8479766283147865, 2.3068743850201923},{2.878344657926236, 2.1459527446561135, 1.486419588355472},{5.128999298228095, 4.886277457853918, 4.5377937973625055},{3.9024059559111812, 3.5278869922642926, 2.8621613468923983},{8.405299653224864, 5.763478847727209, 2.7424069110234894},{6.215745405462986, 5.441658127797566, 3.4619415128832145},{3.501482396033763, 3.307099720154386, 1.9938890500185074},{3.3780891002544386, 3.0475888551135184, 2.3440793528469936},{2.8942531168116536, 2.1591028437950093, 2.225162606299434}},{{1.961116047798011, 1.6635217303740293, 2.1619183579759826},{1.37826102050352, 0.10263979393525541, 0.11986603621904274},{10.059198546050265, 0.07316342656532622, 0.1047580932610654},{7.015737103375655, 3.9743478868863638, 2.10202623845263},{4.155151572803573, 0.8717720808252133, 0.3275836757344511},{5.634031846478673, 2.85864290484533, 0.3806889636843724},{0.37171422518729275, 0.3395648250852788, 0.4253246408979932},{6.4184832201406214, 2.1166633126075407, 1.1391979027732329},{7.862553785381836, 5.089142971379008, 0.978894867442586}}};
ll 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ll sizes[4] = {2063500, 1757000, 1333500, 1473000};
ld variance(ld sx, ld sxx, ll w, ll h){
ll n = w*h;
return (sxx-(sx*sx)/(n))/(n-1);
}
vector<vector<bool>> visited;
int dx[4]={0,1,0,-1};
int dy[4]={1,0,-1,0};
int w,h;
int thresh = 10;
int wthresh = 200;
int bfs(int sx, int sy, int r[500][500], int g[500][500], int b[500][500]){
//cout<<x<<' '<<y<<'\n';
queue<pair<int,int>> q;
q.push({sx,sy});
int c = 0;
visited[sx][sy]=true;
c++;
while (q.size()>0){
auto f = q.front();
q.pop();
int x=f.first; int y=f.second;
for (int i = 0; i<4; i++){
int nx = x+dx[i];
int ny = y+dy[i];
if (!(0<=nx&&nx<w&&0<=ny&&ny<h)){continue;}
if (visited[nx][ny]){continue;}
int delta = abs(r[ny][nx]-r[y][x])+abs(g[ny][nx]-g[y][x])+abs(b[ny][nx]-b[y][x]);
//cout<<delta<<' '<<thresh<<'\n';
if (delta>thresh){continue;}
visited[nx][ny]=true;
c++;
//cout<<"added "<<x<<' '<<y<<'\n';
q.push({nx,ny});
}
}
//cout<<c<<'\n';
return c;
}
int style(int H, int W, int r[500][500], int g[500][500], int b[500][500]) {
//r=R;g=G;b=B;
w=W;h=H;
visited.assign(w,vector<bool>(h,false));
//cout<<"processing\n";
//cout<<"cnt: "<<vcnt<<'\n';
ld variances[3] = {0,0,0};
ld buckets[3][256]={{0},{0},{0}};
int cnt = 0;
for (int y = 0; y<h-size; y++){
for (int x = 0; x<w-size; x++){
buckets[0][r[y][x]]++;
buckets[1][g[y][x]]++;
buckets[2][b[y][x]]++;
cnt+=1;
int sx[3]={0,0,0};
int sxx[3] = {0,0,0};
for (int ya = y; ya<y+size; ya++){
for (int xa = x; xa<x+size; xa++){
sx[0]+=r[ya][xa];
sxx[0]+=r[ya][xa]*r[ya][xa];
sx[1]+=g[ya][xa];
sxx[1]+=g[ya][xa]*g[ya][xa];
sx[2]+=b[ya][xa];
sxx[2]+=b[ya][xa]*b[ya][xa];
}
}
for (int i = 0; i<3; i++){
variances[i]+=variance(sx[i],sxx[i],w,h);
}
}
}
ld pcnt = 0;
ll p = 0;
ll whitecnt = 0;
for (int y = 0; y<h; y++){
for (int x = 0; x<w; x++){
if (!visited[x][y]){
pcnt+=bfs(x,y,r,g,b);
p++;
}
if (r[y][x]>wthresh&&g[y][x]>wthresh&&b[y][x]>wthresh){whitecnt++;}
}
}
//cout<<whitecnt<<'\n';
bool istwoorthree = (pcnt/p)<=5;
//cout<<"cnt: "<<(pcnt/p)<<'\n';
for (int c = 0; c<3; c++){
variances[c]/=(h-size)*(w-size);
}
//cout<<"computed\n";
ld losses[4]={0.0,0.0,0.0,0.0};
for (int i = 0; i<4; i++){
for (int j = 0; j<9; j++){
for (int k = 0; k<3; k++){
ld diff = variance_data[i][j][k]-variances[k];
losses[i]+=diff*diff;
}
}
}
/*for (int i = 0; i<4; i++){
cout<<losses[i]<<' ';
}cout<<'\n';*/
ld minloss = 1e18;
int minind = -1;
ld n = w*h;
ld bucketlosses[4]={0.0,0.0,0.0,0.0};
for (int i = 0; i<4; i++){
ld loss = 0;
for (int j = 0; j<3; j++){
for (int k = 0; k<256; k++){
ld diff = (ld(buckets_data[i][j][k])/sizes[i])-(buckets[j][k]/n);
loss+=diff*diff;
}
}
bucketlosses[i]=loss;
}
if (!istwoorthree){
if (whitecnt>100000){
return 1;
}
if (whitecnt<50){
return 4;
}
} else {
if (whitecnt<50){
return 2;
}
if (whitecnt>30000){
return 3;
}
}
if (istwoorthree){
//return (whitecnt)
return (bucketlosses[1]<bucketlosses[2])?2:3;
} else {
return (bucketlosses[0]<bucketlosses[3])?1:4;
}
//return minind+1;
}
컴파일 시 표준 에러 (stderr) 메시지
| # | Verdict | Execution time | Memory | Grader output |
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