제출 #940623

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
940623		Der_Vlapos	미술 수업 (IOI13_artclass)	C++17	0 / 100	68 ms	31312 KiB

artclass

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

#define f first
#define s second
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back

#include "artclass.h"

vector<int> dx = {0, 0, 1, -1};
vector<int> dy = {-1, 1, 0, 0};

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

bool good(int x, int y)
{
    return x >= 0 and y >= 0 and x < n and y < m;
}

int dfs1(int x, int y)
{
    assert(x < n);
    assert(y < m);
    assert(!was[x][y]);
    assert(x >= 0);
    assert(y >= 0);
    was[x][y] = 1;
    int sz = 1;
    for (int d = 0; d < 4; ++d)
    {
        int tox = x + dx[d];
        int toy = y + dy[d];
        if (good(tox, toy) and !was[tox][toy])
        {
            assert(tox < n and toy < m);
            int diff = abs(r[x][y] - r[tox][toy]) + abs(g[x][y] - g[tox][toy]) + abs(b[x][y] - b[tox][toy]);
            if (diff <= 200)
                sz += dfs1(tox, toy);
        }
    }
    return sz;
}

int dfs2(int x, int y)
{
    was[x][y] = 1;
    int sz = 1;
    for (int d = 0; d < 4; ++d)
    {
        int tox = x + dx[d];
        int toy = y + dy[d];
        if (good(tox, toy) and !was[tox][toy])
        {
            int diff = abs(r[x][y] - r[tox][toy]) + abs(g[x][y] - g[tox][toy]) + abs(b[x][y] - b[tox][toy]);
            if (diff <= 60)
                sz += dfs2(tox, toy);
        }
    }
    return sz;
}

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500])
{
    was.resize(H + 100, vector<int>(W + 100));
    r.resize(H + 100, vector<int>(W + 100));
    g.resize(H + 100, vector<int>(W + 100));
    b.resize(H + 100, vector<int>(W + 100));
    n = H;
    m = W;

    vector<int> d;

    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];
        }
    for (int i = 0; i < n; ++i)
        for (int j = 0; j < m; ++j)
            if (!was[i][j])
                d.pb(dfs1(i, j));

    sort(all(d));
    reverse(all(d));
    if ((int)d.size() == 1)
        return 4;
    if (d[0] + d[1] >= (double)(n * m) * 0.60)
        return 4;
    // cout << d[0] << " " << d[1] << ": " << (double)(n * m) * 0.60 << "!\n";
    d.clear();
    for (int i = 0; i < n; ++i)
        for (int j = 0; j < m; ++j)
            was[i][j] = 0;

    for (int i = 0; i < n; ++i)
        for (int j = 0; j < m; ++j)
            if (!was[i][j])
                d.pb(dfs2(i, j));

    if (((double)d.size() / (double)(H * W)) <= 0.3)
        return 1;
    if (((double)d.size() / (double)(H * W)) >= 0.7)
        return 3;
    return 2;
}

// #include <stdio.h>
// #include "artclass.h"
// #include <assert.h>

// static int DIM[2];
// static int R[500][500];
// static int G[500][500];
// static int B[500][500];

// int main()
// {
//     assert(scanf("%d", &DIM[1]) == 1);
//     assert(scanf("%d", &DIM[0]) == 1);
//     for (int i = 0; i < DIM[0]; i++)
//         for (int j = 0; j < DIM[1]; j++)
//             assert(scanf("%d %d %d", &R[i][j], &G[i][j], &B[i][j]) == 3);
//     printf("%d\n", style(DIM[0], DIM[1], R, G, B));
//     return 0;
// }

• Subtask 1: 0 / 100