Submission #1313542

#	Time	Username	Problem	Language	Result	Execution time	Memory
1313542		kawhiet	Art Class (IOI13_artclass)	C++20	5 / 100	30 ms	3340 KiB

artclass

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

mt19937 rng((uint32_t)chrono::steady_clock::now().time_since_epoch().count());

constexpr int d = 20;

int style(int n, int m, int r[500][500], int g[500][500], int b[500][500]) {
    bool is_4 = 1;
    int bad = 0;
    for (int i = 1; i < n; i++) {
        int cnt = 1, mx = 1;
        for (int j = 1; j < m; j++) {
            int dist_r = abs(r[i][j] - r[i - 1][j]);
            int dist_g = abs(g[i][j] - g[i - 1][j]);
            int dist_b = abs(b[i][j] - b[i - 1][j]);
            if (max({dist_r, dist_b, dist_g}) > 20) {
                cnt = 1;
            } else {
                cnt++;
            }
            mx = max(mx, cnt);
        }
        if (mx < m / 10) {
            bad++;
        }
    }
    if (bad >= 30) {
        is_4 = 0;
    }
    if (is_4) return 4;
    return rng() % 3 + 1;
}

• Subtask 1: 5.2941 / 100