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Submission #413592

# Submission time Handle Problem Language Result Execution time Memory
413592 2021-05-29T03:22:11 Z KoD Art Class (IOI13_artclass) C++17
36 / 100
 77 ms 12952 KB 
#include <bits/stdc++.h>
#include "artclass.h"

template <class T> using Vec = std::vector<T>;

struct UnionFind {
    Vec<int> par;
    int comp;
    UnionFind(const int n): par(n, -1), comp(n) {}
    int find(const int u) {
        return par[u] < 0 ? u : par[u] = find(par[u]);
    }    
    void merge(int x, int y) {
        x = find(x);
        y = find(y);
        if (x == y) {
            return;
        }
        if (par[x] > par[y]) {
            std::swap(x, y);
        }
        par[x] += par[y];
        par[y] = x;
        comp -= 1;
    }
};

int solve(const int N, const Vec<int> R, const Vec<int> G, const Vec<int> B, const std::array<int, 4> D) {
    UnionFind dsu(N);
    for (int i = 0; i < N; ++i) {
        for (int k = 0; k < 4; ++k) {
            const auto j = i + D[k];
            if (0 <= j and j < N) {
                if (std::abs(R[i] - R[j]) <= 20 and std::abs(G[i] - G[j]) <= 20 and std::abs(B[i] - B[j]) <= 20) {
                    dsu.merge(i, j);
                }
            }
        }
    }
    if (dsu.comp <= 60) {
        return 4;
    }
    if (dsu.comp >= 30000) {
        return 3;
    }
    return 1;
}

int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
    const int N = H * W;
    Vec<int> r(N), g(N), b(N);
    for (int i = 0; i < H; ++i) {
        for (int j = 0; j < W; ++j) {
            r[i * W + j] = R[i][j];
            g[i * W + j] = G[i][j];
            b[i * W + j] = B[i][j];
        }
    }
    return solve(N, r, g, b, std::array<int, 4>{W, 1, -W, -1});
}

Subtask #1
36.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 10868 KB Output is correct
2 Correct 65 ms 11172 KB Output is correct
3 Correct 44 ms 8712 KB Output is correct
4 Incorrect 47 ms 8932 KB Output isn't correct
5 Correct 66 ms 10152 KB Output is correct
6 Incorrect 60 ms 9464 KB Output isn't correct
7 Incorrect 65 ms 10480 KB Output isn't correct
8 Correct 70 ms 11844 KB Output is correct
9 Incorrect 64 ms 11068 KB Output isn't correct
10 Correct 67 ms 11996 KB Output is correct
11 Correct 63 ms 10172 KB Output is correct
12 Correct 52 ms 9668 KB Output is correct
13 Correct 48 ms 8888 KB Output is correct
14 Correct 55 ms 9944 KB Output is correct
15 Correct 76 ms 12868 KB Output is correct
16 Correct 47 ms 7736 KB Output is correct
17 Correct 74 ms 12596 KB Output is correct
18 Correct 61 ms 10832 KB Output is correct
19 Correct 75 ms 12760 KB Output is correct
20 Correct 64 ms 11312 KB Output is correct
21 Incorrect 57 ms 9332 KB Output isn't correct
22 Correct 66 ms 10964 KB Output is correct
23 Correct 58 ms 9636 KB Output is correct
24 Incorrect 65 ms 10832 KB Output isn't correct
25 Incorrect 69 ms 10768 KB Output isn't correct
26 Incorrect 65 ms 11644 KB Output isn't correct
27 Correct 75 ms 12952 KB Output is correct
28 Correct 37 ms 7620 KB Output is correct
29 Correct 65 ms 10196 KB Output is correct
30 Incorrect 73 ms 12744 KB Output isn't correct
31 Correct 69 ms 12056 KB Output is correct
32 Incorrect 62 ms 10356 KB Output isn't correct
33 Incorrect 68 ms 10836 KB Output isn't correct
34 Correct 48 ms 7876 KB Output is correct
35 Incorrect 69 ms 11588 KB Output isn't correct
36 Incorrect 49 ms 9540 KB Output isn't correct
37 Correct 59 ms 9288 KB Output is correct
38 Incorrect 57 ms 10384 KB Output isn't correct
39 Incorrect 58 ms 10628 KB Output isn't correct
40 Correct 73 ms 12672 KB Output is correct
41 Correct 50 ms 8720 KB Output is correct
42 Incorrect 61 ms 10180 KB Output isn't correct
43 Incorrect 59 ms 9436 KB Output isn't correct
44 Correct 59 ms 10824 KB Output is correct
45 Correct 76 ms 12448 KB Output is correct
46 Correct 61 ms 10904 KB Output is correct
47 Correct 65 ms 10948 KB Output is correct
48 Correct 59 ms 9632 KB Output is correct
49 Correct 50 ms 8132 KB Output is correct
50 Incorrect 43 ms 6588 KB Output isn't correct
51 Incorrect 62 ms 10528 KB Output isn't correct
52 Correct 48 ms 8444 KB Output is correct
53 Incorrect 65 ms 10708 KB Output isn't correct
54 Incorrect 59 ms 9592 KB Output isn't correct
55 Correct 72 ms 12160 KB Output is correct
56 Incorrect 63 ms 10492 KB Output isn't correct
57 Incorrect 61 ms 10084 KB Output isn't correct
58 Incorrect 57 ms 9920 KB Output isn't correct
59 Incorrect 66 ms 10604 KB Output isn't correct
60 Correct 47 ms 9152 KB Output is correct
61 Correct 62 ms 10776 KB Output is correct
62 Incorrect 47 ms 9180 KB Output isn't correct
63 Incorrect 52 ms 9804 KB Output isn't correct
64 Correct 73 ms 12740 KB Output is correct
65 Correct 51 ms 9708 KB Output is correct
66 Correct 72 ms 12592 KB Output is correct
67 Correct 35 ms 5484 KB Output is correct
68 Correct 31 ms 5240 KB Output is correct
69 Incorrect 54 ms 9608 KB Output isn't correct
70 Correct 69 ms 11672 KB Output is correct
71 Correct 62 ms 10996 KB Output is correct
72 Correct 75 ms 12816 KB Output is correct
73 Incorrect 63 ms 10048 KB Output isn't correct
74 Correct 58 ms 10508 KB Output is correct
75 Correct 32 ms 5144 KB Output is correct
76 Incorrect 51 ms 8264 KB Output isn't correct
77 Correct 77 ms 12276 KB Output is correct
78 Correct 62 ms 11204 KB Output is correct
79 Incorrect 59 ms 10796 KB Output isn't correct
80 Correct 73 ms 12620 KB Output is correct
81 Incorrect 66 ms 11048 KB Output isn't correct
82 Correct 41 ms 6480 KB Output is correct
83 Correct 73 ms 12636 KB Output is correct
84 Correct 43 ms 8604 KB Output is correct
85 Incorrect 61 ms 11120 KB Output isn't correct
86 Incorrect 59 ms 9648 KB Output isn't correct
87 Correct 46 ms 9112 KB Output is correct
88 Correct 58 ms 10672 KB Output is correct
89 Incorrect 65 ms 11292 KB Output isn't correct
90 Incorrect 55 ms 9436 KB Output isn't correct
91 Correct 60 ms 9944 KB Output is correct
92 Incorrect 60 ms 10748 KB Output isn't correct
93 Incorrect 17 ms 2752 KB Output isn't correct
94 Correct 18 ms 5280 KB Output is correct
95 Correct 63 ms 10564 KB Output is correct
96 Correct 52 ms 8516 KB Output is correct
97 Correct 64 ms 10732 KB Output is correct
98 Correct 40 ms 6724 KB Output is correct
99 Correct 40 ms 6468 KB Output is correct
100 Correct 66 ms 10784 KB Output is correct
101 Correct 43 ms 7120 KB Output is correct
102 Incorrect 60 ms 9792 KB Output isn't correct