Submission #1313794

#	Time	Username	Problem	Language	Result	Execution time	Memory
1313794		kawhiet	미술 수업 (IOI13_artclass)	C++20	87 / 100	32 ms	6280 KiB

artclass

#include <bits/stdc++.h>
#include "artclass.h"
using namespace std;

int n, m;
vector<vector<int>> r, g, b;

double get(double tot, double cnt) {
    return 100.0 / tot * cnt;
}

bool field() {
    int bad = 0;
    for (int i = 0; i < n; i++) {
        int cnt = 1, mx = 1;
        for (int j = 1; j < m; j++) {
            int d1 = abs(r[i][j] - r[i][j - 1]);
            int d2 = abs(g[i][j] - g[i][j - 1]);
            int d3 = abs(b[i][j] - b[i][j - 1]);
            if (max({d1, d2, d2}) > 30) {
                cnt = 1;
            } else {
                cnt++;
            }
            mx = max(mx, cnt);
        }
        if (get(m, mx) < 40) {
            i++;
            bad++;
        }
    }
    cerr << bad << ' ';
    return bad <= 40;
}

bool action() {
    return false;
}

int landscape() {
    int cnt = 0;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            int x = r[i][j], y = g[i][j], z = b[i][j];
            if (z == min({x, y, z}) && double(y) / double(z) >= 1.5) {
                cnt++;
            }
        }
    }
    double p = 100.0 / double(n * m) * double(cnt);
    return p >= 40;
}

bool modern() {
    int cnt = 0;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            int x = r[i][j], y = b[i][j], z = g[i][j];
            if (min({x, y, z}) >= 180) {
                cnt++;
            }
        }
    }
    double p = get(n * m, cnt);
    return p >= 20;
}

int style(int _n, int _m, int _r[500][500], int _g[500][500], int _b[500][500]) {
    n = _n; m = _m;
    r.assign(n, vector<int>(m, 0));
    b.assign(n, vector<int>(m, 0));
    g.assign(n, vector<int>(m, 0));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            r[i][j] = _r[i][j];
            g[i][j] = _g[i][j];
            b[i][j] = _b[i][j];
        }
    }
    if (modern()) return 1;
    if (field()) return 4;
    if (landscape()) return 2;
    return 3;
}

• Subtask 1: 87.2059 / 100