Submission #801917

#	Time	Username	Problem	Language	Result	Execution time	Memory
801917		PixelCat	Art Class (IOI13_artclass)	C++14	100 / 100	51 ms	4112 KiB

artclass

#include "artclass.h"

#include <bits/stdc++.h>
#define For(i, a, b) for(int i = a; i <= b; i++)
using namespace std;

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
    long long tot = 0;
    long long sr = 0;
    long long sg = 0;
    long long sb = 0;
    long long cg = 0;
    For(i, 0, H - 1) For(j, 0, W - 1) {
        sr += R[i][j];
        sg += G[i][j];
        sb += B[i][j];
        cg += max(0, G[i][j] - max(R[i][j], B[i][j]));
        if(i) {
            tot += abs(R[i][j] - R[i - 1][j]);
            tot += abs(G[i][j] - G[i - 1][j]);
            tot += abs(B[i][j] - B[i - 1][j]);
        }
        if(j) {
            tot += abs(R[i][j] - R[i][j - 1]);
            tot += abs(G[i][j] - G[i][j - 1]);
            tot += abs(B[i][j] - B[i][j - 1]);
        }
        if(i && j) {
            tot += abs(R[i][j] - R[i - 1][j - 1]);
            tot += abs(G[i][j] - G[i - 1][j - 1]);
            tot += abs(B[i][j] - B[i - 1][j - 1]);
        }
        if(i < H - 1 && j) {
            tot += abs(R[i][j] - R[i + 1][j - 1]);
            tot += abs(G[i][j] - G[i + 1][j - 1]);
            tot += abs(B[i][j] - B[i + 1][j - 1]);
        }
    }
    long long hw = H * W;
    tot = (tot * 250000) / hw;
    sr = (sr * 250000) / hw;
    sg = (sg * 250000) / hw;
    sb = (sb * 250000) / hw;
    cg = (cg * 250000) / hw;
#ifdef NYAOWO
    fstream fs;
    fs.open("./solver_output.txt", ios::out);
    fs << tot << "\n";
    fs << sr << "\n";
    fs << sg << "\n";
    fs << sb << "\n";
    fs << cg << "\n";
    fs.close();
#endif
    if(tot < 10000000) return 4;
    if(tot > 60000000) return 3;
    long long a[] = {sr, sg, sb};
    sort(a, a + 3);
    if(a[1] < 30000000) return 2;
    return 1;
}

• Subtask 1: 100 / 100