Submission #822233

#	Time	Username	Problem	Language	Result	Execution time	Memory
822233		alvingogo	Art Class (IOI13_artclass)	C++14	98 / 100	63 ms	3812 KiB

artclass

#include "artclass.h"
#include <bits/stdc++.h>
using namespace std;
 
int style(int h, int w, int R[500][500], int G[500][500], int B[500][500]) {
    long double dif=0,gr=0,dif2=0,gr2=0;
    const int dx[4]={1,1,1,0},dy[4]={1,0,-1,1};
    for(int i=0;i<h;i++){
        for(int j=0;j<w;j++){
            for(int k=0;k<4;k++){
                int a=i+dx[k],b=j+dy[k];
                if(a>=h || b>=w || a<0 || b<0){
                    continue;
                }
                int dz=(R[i][j]-R[a][b])*(R[i][j]-R[a][b])+(G[i][j]-G[a][b])*(G[i][j]-G[a][b])+(B[i][j]-B[a][b])*(B[i][j]-B[a][b]);
                dif+=dz;
                dif2+=(dz<=100);
            }
            int z=max(0,G[i][j]-max(R[i][j],B[i][j]));
            gr+=1ll*z*z*z;
            gr2+=1ll*z*z;
        }
    }
    gr/=(h*w);
    gr2/=(h*w);
    dif/=(h*w);
    dif2/=(h*w);
    //cout << dif << ' ' << gr << ' ' << dif2 << " " << gr2 << "\n";
    if(dif<1000){
        return 4;
    }
    else if(dif>8000){
        return 3;
    }
    if(dif2<2.4){
        return 2;
    }
    return 1;
}

• Subtask 1: 98 / 100