Submission #1313686

#	Time	Username	Problem	Language	Result	Execution time	Memory
1313686		kawhiet	Art Class (IOI13_artclass)	C++20	Compilation error	0 ms	0 KiB

artclass

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

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

int is_4(int n, int m, int r[500][500], int g[500][500], int b[500][500]) {
    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);
        }
        double p = 100.0 / double(m) * double(cnt);
        if (p <= 50) {
            bad++;
            i += 5;
        }
    }
    cerr << bad << '\n';
    if (bad >= 30) {
        return false;
    } else {
        return true;
    }
}

int is_2(int n, int m, int r[500][500], int g[500][500], int b[500][500]) {
    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 (y > max(x, z) + 10 || (abs(y - z) <= 10 && x <= 30) || ((abs(x - y) <= 10 && z <= 30))) {
                cnt++;
            }
        }
    }
    double p = 100.0 / double(n * m) * double(cnt);
    // cerr << p << ' ';
    if (9 <= p && p <= 80) {
        return true;
    } else {
        return false;
    }
}

int is_3(int n, int m, int r[500][500], int g[500][500], int b[500][500]) {
    int cnt = 0;
    for (int i = 0; i < n; i++) {
        for (int j = 1; j < m; j++) {
            int sum = abs(r[i][j] - r[i][j - 1]);
            sum += abs(g[i][j] - g[i][j - 1]);
            sum += abs(b[i][j] - b[i][j - 1]);
            if (sum >= 40) {
                cnt++;
            }
        }
    }
    if (cnt >= 100) {
        return true;
    } else {
        return false;
    }
}

int style(int n, int m, int r[500][500], int g[500][500], int b[500][500]) {
    if (is_4(n, m, r, g, b)) return 4;
    return 1;
    // if (is_2(n, m, r, g, b)) return 2;
    // if (is_3(n, m, r, g, b)) return 3;
    // return 1;
}

int R[500][500], G[500][500], B[500][500];

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int tt = 9;
    // cin >> tt;
    while (tt--) {
        for (int i = 0; i < 500; i++) {
            for (int j = 0; j < 500; j++) {
                R[i][j] = B[i][j] = G[i][j] = 0;
            }
        }
        int N, M;
        cin >> N >> M;
        for (int i = 0; i < N; i++) {
            for (int j = 0; j < M; j++) {
                cin >> R[i][j] >> G[i][j] >> B[i][j];
            }
        }
        cout << style(N, M, R, G, B) << '\n';
    }
    return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccFmFXKm.o: in function `main':
grader.c:(.text.startup+0x0): multiple definition of `main'; /tmp/ccVKOrNi.o:artclass.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status