oj.uz

Submission #768527

# Submission time Handle Problem Language Result Execution time Memory
768527 2023-06-28T08:47:04 Z boris_mihov Art Class (IOI13_artclass) C++17
14 / 100
 86 ms 19276 KB 
#include "artclass.h"
#include <algorithm>
#include <iostream>
#include <iomanip>
#include <numeric>
#include <cassert>
#include <vector>
#include <set>

typedef long long llong;
const int MAXN = 500;
const int INF  = 1e9;

struct Cell
{
    int x, y, z;
    friend int operator - (const Cell &a, const Cell &b)
    {
        return abs(a.x - b.x) + abs(a.y - b.y) + abs(a.z - b.z);
    }

    friend bool operator < (const Cell &a, const Cell &b)
    {
        return (a.x < b.x || (a.x == b.x && a.y < b.y) || (a.x == b.x && a.y == b.y && a.z < b.z));
    }
};

const int BASE3 = 5;
bool close(Cell a, Cell b)
{
    return abs(a.x - b.x) < BASE3 && abs(a.y - b.y) < BASE3 && abs(a.z - b.z) < BASE3;
}

const int BASE = 5;
const int BASE2 = 10;
int convert(int x)
{
    if (x % BASE < BASE / 2) return x - (x % BASE);
    return x + BASE - (x % BASE);
}

std::set <Cell> s;
Cell pixel[MAXN][MAXN];
Cell block[MAXN][MAXN];
std::pair <int,int> delta[] = {{-1, 0}, {0, -1}, {1, 0}, {0, 1}};

bool out(int x, int y)
{
    return (x == -1 || y == -1 || x == MAXN / BASE2 || y == MAXN / BASE2);
}

bool outDFS(int x, int y)
{
    return (x == -1 || y == -1 || x == MAXN || y == MAXN);
}

bool vis[MAXN][MAXN];
void dfs(int x, int y)
{
    vis[x][y] = true;
    for (const auto &[dx, dy] : delta)
    {
        if (outDFS(x + dx, y + dy) || !close(pixel[x][y], pixel[x + dx][y + dy]) || vis[x + dx][y + dy])
        {
            continue;
        }

        dfs(x + dx, y + dy);
    }
}

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) 
{
    llong sum = 0;
    llong green = 0;
    for (int i = 0 ; i < MAXN ; ++i)
    {
        for (int j = 0 ; j < MAXN ; ++j)
        {
            sum += R[i][j];
            sum += G[i][j];
            sum += B[i][j];
            pixel[i][j] = {R[i][j], G[i][j], B[i][j]};
            block[i / BASE2][j / BASE2].x += R[i][j];
            block[i / BASE2][j / BASE2].y += G[i][j];
            block[i / BASE2][j / BASE2].z += B[i][j];
            green += (G[i][j] > 128);
            green -= (B[i][j] > 64 || G[i][j] > 64);
            s.insert({convert(R[i][j]), convert(G[i][j]), convert(B[i][j])});
        }
    }

    llong diff = 0;
    llong diff2 = 0;
    for (int i = 0 ; i * BASE2 < MAXN ; ++i)
    {
        for (int j = 0 ; j * BASE2 < MAXN ; ++j)
        {
            for (const auto &[dx, dy] : delta)
            {
                if (out(i + dx, j + dy))
                {
                    continue;
                }

                diff += block[i][j] - block[i + dx][j + dy];
            }   
        }
    }

    for (int i = 0 ; i < MAXN ; ++i)
    {
        for (int j = 0 ; j < MAXN ; ++j)
        {
            for (const auto &[dx, dy] : delta)
            {
                if (out(i + dx, j + dy))
                {
                    continue;
                }

                diff2 += pixel[i][j] - pixel[i + dx][j + dy];
            }   
        }
    }

    int compCnt = 0;
    for (int i = 0 ; i < MAXN ; ++i)
    {
        for (int j = 0 ; j < MAXN ; ++j)
        {
            if (!vis[i][j])
            {
                compCnt++;
                dfs(i, j);
            }
        }
    }

    srand(time(nullptr));
    double ratio = (double)green / (MAXN * MAXN);
    double ratio2 = (double)s.size() / (MAXN * MAXN);
    // std::cout << "ratio: " << std::fixed << ratio << ' ' << ratio2 << ' ' << diff << ' ' << diff2 << ' ' << compCnt << '\n';
    if (compCnt < 9000) return 4;
    if (compCnt < 60000) return 1;
    // if (ratio > 0.3) return 2;
    // return 3;
    return 2 + rand()%2;
}

Compilation message

artclass.cpp: In function 'int style(int, int, int (*)[500], int (*)[500], int (*)[500])':
artclass.cpp:141:12: warning: unused variable 'ratio' [-Wunused-variable]
  141 |     double ratio = (double)green / (MAXN * MAXN);
      |            ^~~~~
artclass.cpp:142:12: warning: unused variable 'ratio2' [-Wunused-variable]
  142 |     double ratio2 = (double)s.size() / (MAXN * MAXN);
      |            ^~~~~~

Subtask #1
14.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 10776 KB Output is correct
2 Correct 65 ms 11192 KB Output is correct
3 Correct 59 ms 11980 KB Output is correct
4 Correct 60 ms 11148 KB Output is correct
5 Correct 45 ms 14528 KB Output is correct
6 Incorrect 57 ms 12148 KB Output isn't correct
7 Incorrect 55 ms 14064 KB Output isn't correct
8 Incorrect 53 ms 11744 KB Output isn't correct
9 Correct 61 ms 11108 KB Output is correct
10 Incorrect 70 ms 11788 KB Output isn't correct
11 Correct 54 ms 10580 KB Output is correct
12 Incorrect 62 ms 11716 KB Output isn't correct
13 Correct 49 ms 15072 KB Output is correct
14 Incorrect 59 ms 12324 KB Output isn't correct
15 Correct 51 ms 13820 KB Output is correct
16 Correct 51 ms 19264 KB Output is correct
17 Incorrect 44 ms 14284 KB Output isn't correct
18 Incorrect 66 ms 11276 KB Output isn't correct
19 Correct 63 ms 12644 KB Output is correct
20 Incorrect 45 ms 14512 KB Output isn't correct
21 Incorrect 52 ms 14984 KB Output isn't correct
22 Incorrect 65 ms 11964 KB Output isn't correct
23 Correct 64 ms 13656 KB Output is correct
24 Incorrect 46 ms 13740 KB Output isn't correct
25 Correct 65 ms 12080 KB Output is correct
26 Correct 67 ms 12188 KB Output is correct
27 Correct 38 ms 16036 KB Output is correct
28 Correct 50 ms 13656 KB Output is correct
29 Correct 64 ms 13600 KB Output is correct
30 Correct 40 ms 15672 KB Output is correct
31 Correct 57 ms 12188 KB Output is correct
32 Correct 60 ms 10140 KB Output is correct
33 Correct 51 ms 13436 KB Output is correct
34 Incorrect 59 ms 12480 KB Output isn't correct
35 Correct 43 ms 14096 KB Output is correct
36 Incorrect 70 ms 10396 KB Output isn't correct
37 Incorrect 52 ms 15348 KB Output isn't correct
38 Correct 30 ms 19176 KB Output is correct
39 Incorrect 58 ms 13556 KB Output isn't correct
40 Correct 58 ms 11704 KB Output is correct
41 Incorrect 54 ms 12664 KB Output isn't correct
42 Correct 61 ms 11588 KB Output is correct
43 Incorrect 73 ms 11644 KB Output isn't correct
44 Correct 60 ms 12400 KB Output is correct
45 Incorrect 80 ms 9612 KB Output isn't correct
46 Correct 63 ms 11360 KB Output is correct
47 Incorrect 58 ms 14284 KB Output isn't correct
48 Correct 61 ms 12520 KB Output is correct
49 Correct 58 ms 11816 KB Output is correct
50 Correct 60 ms 11912 KB Output is correct
51 Correct 53 ms 15692 KB Output is correct
52 Correct 61 ms 13348 KB Output is correct
53 Incorrect 74 ms 12020 KB Output isn't correct
54 Correct 55 ms 19276 KB Output is correct
55 Incorrect 46 ms 14332 KB Output isn't correct
56 Incorrect 55 ms 11876 KB Output isn't correct
57 Correct 49 ms 14332 KB Output is correct
58 Correct 58 ms 18252 KB Output is correct
59 Incorrect 54 ms 13776 KB Output isn't correct
60 Correct 44 ms 14752 KB Output is correct
61 Incorrect 58 ms 16544 KB Output isn't correct
62 Incorrect 48 ms 14548 KB Output isn't correct
63 Incorrect 52 ms 16352 KB Output isn't correct
64 Correct 62 ms 12236 KB Output is correct
65 Correct 62 ms 12096 KB Output is correct
66 Incorrect 64 ms 11396 KB Output isn't correct
67 Incorrect 65 ms 11788 KB Output isn't correct
68 Correct 86 ms 12180 KB Output is correct
69 Incorrect 52 ms 13152 KB Output isn't correct
70 Correct 54 ms 13284 KB Output is correct
71 Incorrect 65 ms 11488 KB Output isn't correct
72 Incorrect 69 ms 9820 KB Output isn't correct
73 Correct 45 ms 13836 KB Output is correct
74 Correct 63 ms 12920 KB Output is correct
75 Incorrect 57 ms 11652 KB Output isn't correct
76 Incorrect 62 ms 11736 KB Output isn't correct
77 Correct 66 ms 13132 KB Output is correct
78 Correct 44 ms 15436 KB Output is correct
79 Incorrect 61 ms 11144 KB Output isn't correct
80 Correct 45 ms 13804 KB Output is correct
81 Incorrect 66 ms 12640 KB Output isn't correct
82 Incorrect 64 ms 11648 KB Output isn't correct
83 Incorrect 36 ms 17580 KB Output isn't correct
84 Correct 48 ms 12164 KB Output is correct
85 Incorrect 57 ms 12136 KB Output isn't correct
86 Incorrect 66 ms 12048 KB Output isn't correct
87 Incorrect 52 ms 14876 KB Output isn't correct
88 Incorrect 44 ms 15664 KB Output isn't correct
89 Correct 62 ms 12788 KB Output is correct
90 Correct 68 ms 12044 KB Output is correct
91 Incorrect 50 ms 13760 KB Output isn't correct
92 Incorrect 44 ms 14440 KB Output isn't correct
93 Correct 62 ms 11912 KB Output is correct
94 Correct 53 ms 11980 KB Output is correct
95 Incorrect 72 ms 10700 KB Output isn't correct
96 Correct 56 ms 14064 KB Output is correct
97 Correct 74 ms 12476 KB Output is correct
98 Incorrect 64 ms 12936 KB Output isn't correct
99 Correct 66 ms 12348 KB Output is correct
100 Incorrect 67 ms 12492 KB Output isn't correct
101 Incorrect 68 ms 11144 KB Output isn't correct
102 Incorrect 61 ms 14328 KB Output isn't correct