oj.uz

Submission #518549

# Submission time Handle Problem Language Result Execution time Memory
518549 2022-01-24T04:38:28 Z tabr Art Class (IOI13_artclass) C++17
100 / 100
 67 ms 5172 KB 
#include <bits/stdc++.h>
using namespace std;
#ifdef tabr
#include "library/debug.cpp"
#else
#define debug(...)
#endif

#ifndef tabr
#include "artclass.h"
#endif

struct dsu {
    vector<int> p;
    vector<int> sz;
    int n;

    dsu(int _n) : n(_n) {
        p.resize(n);
        iota(p.begin(), p.end(), 0);
        sz.assign(n, 1);
    }

    inline int get(int x) {
        if (p[x] == x) {
            return x;
        } else {
            return p[x] = get(p[x]);
        }
    }

    inline bool unite(int x, int y) {
        x = get(x);
        y = get(y);
        if (x == y) {
            return false;
        }
        if (sz[x] > sz[y]) {
            swap(x, y);
        }
        p[x] = y;
        sz[y] += sz[x];
        return true;
    }

    inline bool same(int x, int y) {
        return (get(x) == get(y));
    }
};

int style(int h, int w, int r[500][500], int g[500][500], int b[500][500]) {
    dsu uf(h * w);
    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w - 1; j++) {
            int dr = abs(r[i][j] - r[i][j + 1]);
            int dg = abs(g[i][j] - g[i][j + 1]);
            int db = abs(b[i][j] - b[i][j + 1]);
            if (min({dr, dg, db}) < 20) {
                uf.unite(i * w + j, i * w + j + 1);
            }
        }
    }
    for (int i = 0; i < h - 1; i++) {
        for (int j = 0; j < w; j++) {
            int dr = abs(r[i][j] - r[i + 1][j]);
            int dg = abs(g[i][j] - g[i + 1][j]);
            int db = abs(b[i][j] - b[i + 1][j]);
            if (min({dr, dg, db}) < 20) {
                uf.unite(i * w + j, i * w + j + w);
            }
        }
    }
    int cnt = 0;
    for (int i = 0; i < h * w; i++) {
        if (uf.get(i) == i) {
            cnt++;
        }
    }
    double ratio1 = 1.0 * cnt / (h * w);
    cnt = 0;
    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            int dr = abs(r[i][j] - 100);
            int dg = abs(g[i][j] - 100);
            int db = abs(b[i][j] - 50);
            if (max({dr, dg, db}) < 30) {
                cnt++;
            }
        }
    }
    double ratio2 = 1.0 * cnt / (h * w);
    debug(ratio1);
    debug(ratio2);
    if (ratio1 < 0.00005) {
        return 4;
    }
    if (ratio1 > 0.05) {
        return 3;
    }
    if (ratio2 > 0.05) {
        return 2;
    }
    return 1;
}

#ifdef tabr
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int h, w;
    cin >> h >> w;
    int r[500][500];
    int g[500][500];
    int b[500][500];
    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            cin >> r[i][j] >> g[i][j] >> b[i][j];
        }
    }
    cout << style(h, w, r, g, b) << '\n';
    return 0;
}
#endif

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 4232 KB Output is correct
2 Correct 45 ms 3976 KB Output is correct
3 Correct 51 ms 4976 KB Output is correct
4 Correct 38 ms 3356 KB Output is correct
5 Correct 36 ms 4488 KB Output is correct
6 Correct 35 ms 3160 KB Output is correct
7 Correct 48 ms 4828 KB Output is correct
8 Correct 37 ms 3512 KB Output is correct
9 Correct 40 ms 4300 KB Output is correct
10 Correct 29 ms 2700 KB Output is correct
11 Correct 52 ms 4840 KB Output is correct
12 Correct 44 ms 3868 KB Output is correct
13 Correct 32 ms 2216 KB Output is correct
14 Correct 57 ms 5080 KB Output is correct
15 Correct 43 ms 4180 KB Output is correct
16 Correct 25 ms 4172 KB Output is correct
17 Correct 32 ms 4260 KB Output is correct
18 Correct 44 ms 4300 KB Output is correct
19 Correct 54 ms 4360 KB Output is correct
20 Correct 52 ms 5032 KB Output is correct
21 Correct 58 ms 4876 KB Output is correct
22 Correct 45 ms 4720 KB Output is correct
23 Correct 47 ms 4704 KB Output is correct
24 Correct 46 ms 4756 KB Output is correct
25 Correct 47 ms 4768 KB Output is correct
26 Correct 45 ms 4804 KB Output is correct
27 Correct 39 ms 3436 KB Output is correct
28 Correct 44 ms 4260 KB Output is correct
29 Correct 58 ms 4516 KB Output is correct
30 Correct 41 ms 4076 KB Output is correct
31 Correct 45 ms 4756 KB Output is correct
32 Correct 41 ms 4060 KB Output is correct
33 Correct 38 ms 4524 KB Output is correct
34 Correct 57 ms 5008 KB Output is correct
35 Correct 58 ms 3828 KB Output is correct
36 Correct 30 ms 2704 KB Output is correct
37 Correct 47 ms 4656 KB Output is correct
38 Correct 43 ms 4036 KB Output is correct
39 Correct 51 ms 5164 KB Output is correct
40 Correct 51 ms 5136 KB Output is correct
41 Correct 47 ms 4232 KB Output is correct
42 Correct 52 ms 5076 KB Output is correct
43 Correct 22 ms 2276 KB Output is correct
44 Correct 47 ms 4156 KB Output is correct
45 Correct 14 ms 3660 KB Output is correct
46 Correct 53 ms 5136 KB Output is correct
47 Correct 31 ms 4300 KB Output is correct
48 Correct 43 ms 4804 KB Output is correct
49 Correct 13 ms 1228 KB Output is correct
50 Correct 42 ms 4232 KB Output is correct
51 Correct 54 ms 5064 KB Output is correct
52 Correct 31 ms 4280 KB Output is correct
53 Correct 58 ms 4800 KB Output is correct
54 Correct 30 ms 2884 KB Output is correct
55 Correct 52 ms 4928 KB Output is correct
56 Correct 46 ms 4776 KB Output is correct
57 Correct 33 ms 4380 KB Output is correct
58 Correct 36 ms 3268 KB Output is correct
59 Correct 43 ms 4804 KB Output is correct
60 Correct 28 ms 2688 KB Output is correct
61 Correct 44 ms 4760 KB Output is correct
62 Correct 43 ms 4616 KB Output is correct
63 Correct 48 ms 4940 KB Output is correct
64 Correct 57 ms 5088 KB Output is correct
65 Correct 42 ms 4052 KB Output is correct
66 Correct 61 ms 4140 KB Output is correct
67 Correct 47 ms 4348 KB Output is correct
68 Correct 60 ms 5140 KB Output is correct
69 Correct 51 ms 5064 KB Output is correct
70 Incorrect 67 ms 4552 KB Output isn't correct
71 Correct 46 ms 4236 KB Output is correct
72 Correct 52 ms 4832 KB Output is correct
73 Correct 46 ms 4792 KB Output is correct
74 Incorrect 43 ms 4792 KB Output isn't correct
75 Correct 36 ms 4404 KB Output is correct
76 Incorrect 49 ms 4440 KB Output isn't correct
77 Correct 45 ms 4208 KB Output is correct
78 Correct 45 ms 4324 KB Output is correct
79 Correct 35 ms 4388 KB Output is correct
80 Incorrect 42 ms 4668 KB Output isn't correct
81 Correct 24 ms 2364 KB Output is correct
82 Incorrect 48 ms 4872 KB Output isn't correct
83 Correct 51 ms 4828 KB Output is correct
84 Correct 41 ms 3960 KB Output is correct
85 Correct 49 ms 4808 KB Output is correct
86 Correct 42 ms 4700 KB Output is correct
87 Correct 30 ms 2888 KB Output is correct
88 Correct 53 ms 5172 KB Output is correct
89 Correct 41 ms 4564 KB Output is correct
90 Correct 52 ms 5052 KB Output is correct
91 Correct 54 ms 4424 KB Output is correct
92 Correct 40 ms 3908 KB Output is correct
93 Correct 36 ms 4356 KB Output is correct
94 Incorrect 45 ms 3908 KB Output isn't correct
95 Correct 33 ms 4428 KB Output is correct
96 Correct 39 ms 4508 KB Output is correct
97 Correct 33 ms 4396 KB Output is correct
98 Correct 41 ms 3788 KB Output is correct
99 Correct 62 ms 4680 KB Output is correct
100 Correct 52 ms 5096 KB Output is correct
101 Correct 37 ms 4548 KB Output is correct
102 Correct 43 ms 4732 KB Output is correct