oj.uz

Submission #604218

# Submission time Handle Problem Language Result Execution time Memory
604218 2022-07-24T21:08:57 Z skittles1412 Connecting Supertrees (IOI20_supertrees) C++17
100 / 100
 250 ms 22992 KB 
#include "bits/extc++.h"

using namespace std;

template <typename T>
void dbgh(const T& t) {
    cerr << t << endl;
}

template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
    cerr << t << " | ";
    dbgh(u...);
}

#ifdef DEBUG
#define dbg(...)                                              \
    cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]: "; \
    dbgh(__VA_ARGS__);
#else
#define dbg(...)
#define cerr   \
    if (false) \
    cerr
#endif

#define endl "\n"
#define long int64_t
#define sz(x) int((x).size())

void build(std::vector<std::vector<int>> b);

int construct(vector<vector<int>> arr) {
    for (auto& a : arr) {
        for (auto& b : a) {
            if (b == 3) {
                return 0;
            }
        }
    }
    int n = sz(arr);
    bool vis[n] {};
    vector<vector<int>> trees;
    for (int i = 0; i < n; i++) {
        if (vis[i]) {
            continue;
        }
        vis[i] = true;
        trees.push_back({i});
        for (int j = 0; j < n; j++) {
            if (!vis[j] && arr[i][j] == 1) {
                trees.back().push_back(j);
                vis[j] = true;
            }
        }
    }
    vector<vector<int>> cycles;
    memset(vis, 0, sizeof(vis));
    for (int i = 0; i < sz(trees); i++) {
        if (vis[i]) {
            continue;
        }
        vis[i] = true;
        cycles.push_back({i});
        for (int j = 0; j < sz(trees); j++) {
            if (!vis[j] && arr[trees[i][0]][trees[j][0]] == 2) {
                cycles.back().push_back(j);
                vis[j] = true;
            }
        }
        if (sz(cycles.back()) == 2) {
            return 0;
        }
    }
    int rtree[n], rcycle1[n], rcycle[n];
    for (int i = 0; i < sz(trees); i++) {
        for (auto& a : trees[i]) {
            rtree[a] = i;
        }
    }
    for (int i = 0; i < sz(cycles); i++) {
        for (auto& a : cycles[i]) {
            rcycle1[a] = i;
        }
    }
    for (int i = 0; i < n; i++) {
        rcycle[i] = rcycle1[rtree[i]];
    }
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            int x;
            if (rtree[i] == rtree[j]) {
                x = 1;
            } else if (rcycle[i] == rcycle[j]) {
                x = 2;
            } else {
                x = 0;
            }
            if (arr[i][j] != x) {
                return 0;
            }
        }
    }
    vector<vector<int>> graph(n, vector<int>(n));
    auto add_edge = [&](int u, int v) -> void {
        graph[u][v] = graph[v][u] = true;
    };
    for (auto& a : trees) {
        for (int i = 1; i < sz(a); i++) {
            add_edge(a[0], a[i]);
        }
    }
    for (auto& a : cycles) {
        if (sz(a) == 1) {
            continue;
        }
        for (int i = 0; i < sz(a); i++) {
            add_edge(trees[a[i]][0], trees[a[(i + 1) % sz(a)]][0]);
        }
    }
    build(graph);
    return 1;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 11 ms 1232 KB Output is correct
7 Correct 182 ms 22712 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 11 ms 1232 KB Output is correct
7 Correct 182 ms 22712 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 8 ms 1236 KB Output is correct
13 Correct 185 ms 22720 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 700 KB Output is correct
17 Correct 73 ms 8772 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 48 ms 6176 KB Output is correct
21 Correct 194 ms 22596 KB Output is correct
22 Correct 198 ms 22724 KB Output is correct
23 Correct 181 ms 22684 KB Output is correct
24 Correct 185 ms 22696 KB Output is correct
25 Correct 66 ms 8712 KB Output is correct
26 Correct 90 ms 8804 KB Output is correct
27 Correct 208 ms 22612 KB Output is correct
28 Correct 172 ms 22804 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 296 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 8 ms 1236 KB Output is correct
9 Correct 173 ms 22788 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 9 ms 1204 KB Output is correct
13 Correct 177 ms 22752 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 6 ms 692 KB Output is correct
17 Correct 75 ms 8852 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 300 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 54 ms 6220 KB Output is correct
22 Correct 181 ms 22660 KB Output is correct
23 Correct 250 ms 22732 KB Output is correct
24 Correct 212 ms 22760 KB Output is correct
25 Correct 77 ms 8920 KB Output is correct
26 Correct 72 ms 8828 KB Output is correct
27 Correct 202 ms 22656 KB Output is correct
28 Correct 187 ms 22704 KB Output is correct
29 Correct 71 ms 8840 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 296 KB Output is correct
4 Correct 49 ms 6168 KB Output is correct
5 Correct 189 ms 22668 KB Output is correct
6 Correct 181 ms 22688 KB Output is correct
7 Correct 186 ms 22604 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 48 ms 6288 KB Output is correct
10 Correct 189 ms 22732 KB Output is correct
11 Correct 187 ms 22732 KB Output is correct
12 Correct 194 ms 22712 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 45 ms 6204 KB Output is correct
17 Correct 171 ms 22912 KB Output is correct
18 Correct 203 ms 22976 KB Output is correct
19 Correct 170 ms 22916 KB Output is correct
20 Correct 183 ms 22992 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 11 ms 1232 KB Output is correct
7 Correct 182 ms 22712 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 8 ms 1236 KB Output is correct
13 Correct 185 ms 22720 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 700 KB Output is correct
17 Correct 73 ms 8772 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 48 ms 6176 KB Output is correct
21 Correct 194 ms 22596 KB Output is correct
22 Correct 198 ms 22724 KB Output is correct
23 Correct 181 ms 22684 KB Output is correct
24 Correct 185 ms 22696 KB Output is correct
25 Correct 66 ms 8712 KB Output is correct
26 Correct 90 ms 8804 KB Output is correct
27 Correct 208 ms 22612 KB Output is correct
28 Correct 172 ms 22804 KB Output is correct
29 Correct 1 ms 296 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 300 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 8 ms 1236 KB Output is correct
37 Correct 173 ms 22788 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 9 ms 1204 KB Output is correct
41 Correct 177 ms 22752 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 6 ms 692 KB Output is correct
45 Correct 75 ms 8852 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 300 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 54 ms 6220 KB Output is correct
50 Correct 181 ms 22660 KB Output is correct
51 Correct 250 ms 22732 KB Output is correct
52 Correct 212 ms 22760 KB Output is correct
53 Correct 77 ms 8920 KB Output is correct
54 Correct 72 ms 8828 KB Output is correct
55 Correct 202 ms 22656 KB Output is correct
56 Correct 187 ms 22704 KB Output is correct
57 Correct 71 ms 8840 KB Output is correct
58 Correct 1 ms 212 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 4 ms 692 KB Output is correct
61 Correct 71 ms 8704 KB Output is correct
62 Correct 1 ms 300 KB Output is correct
63 Correct 1 ms 212 KB Output is correct
64 Correct 1 ms 212 KB Output is correct
65 Correct 45 ms 6188 KB Output is correct
66 Correct 68 ms 9096 KB Output is correct
67 Correct 78 ms 9104 KB Output is correct
68 Correct 66 ms 9096 KB Output is correct
69 Correct 69 ms 9076 KB Output is correct

Subtask #6
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 11 ms 1232 KB Output is correct
7 Correct 182 ms 22712 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 8 ms 1236 KB Output is correct
13 Correct 185 ms 22720 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 3 ms 700 KB Output is correct
17 Correct 73 ms 8772 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 48 ms 6176 KB Output is correct
21 Correct 194 ms 22596 KB Output is correct
22 Correct 198 ms 22724 KB Output is correct
23 Correct 181 ms 22684 KB Output is correct
24 Correct 185 ms 22696 KB Output is correct
25 Correct 66 ms 8712 KB Output is correct
26 Correct 90 ms 8804 KB Output is correct
27 Correct 208 ms 22612 KB Output is correct
28 Correct 172 ms 22804 KB Output is correct
29 Correct 1 ms 296 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 300 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 8 ms 1236 KB Output is correct
37 Correct 173 ms 22788 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 9 ms 1204 KB Output is correct
41 Correct 177 ms 22752 KB Output is correct
42 Correct 1 ms 212 KB Output is correct
43 Correct 1 ms 212 KB Output is correct
44 Correct 6 ms 692 KB Output is correct
45 Correct 75 ms 8852 KB Output is correct
46 Correct 1 ms 212 KB Output is correct
47 Correct 1 ms 300 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 54 ms 6220 KB Output is correct
50 Correct 181 ms 22660 KB Output is correct
51 Correct 250 ms 22732 KB Output is correct
52 Correct 212 ms 22760 KB Output is correct
53 Correct 77 ms 8920 KB Output is correct
54 Correct 72 ms 8828 KB Output is correct
55 Correct 202 ms 22656 KB Output is correct
56 Correct 187 ms 22704 KB Output is correct
57 Correct 71 ms 8840 KB Output is correct
58 Correct 1 ms 300 KB Output is correct
59 Correct 1 ms 212 KB Output is correct
60 Correct 1 ms 296 KB Output is correct
61 Correct 49 ms 6168 KB Output is correct
62 Correct 189 ms 22668 KB Output is correct
63 Correct 181 ms 22688 KB Output is correct
64 Correct 186 ms 22604 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Correct 48 ms 6288 KB Output is correct
67 Correct 189 ms 22732 KB Output is correct
68 Correct 187 ms 22732 KB Output is correct
69 Correct 194 ms 22712 KB Output is correct
70 Correct 1 ms 212 KB Output is correct
71 Correct 1 ms 212 KB Output is correct
72 Correct 1 ms 212 KB Output is correct
73 Correct 45 ms 6204 KB Output is correct
74 Correct 171 ms 22912 KB Output is correct
75 Correct 203 ms 22976 KB Output is correct
76 Correct 170 ms 22916 KB Output is correct
77 Correct 183 ms 22992 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 1 ms 212 KB Output is correct
80 Correct 4 ms 692 KB Output is correct
81 Correct 71 ms 8704 KB Output is correct
82 Correct 1 ms 300 KB Output is correct
83 Correct 1 ms 212 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 45 ms 6188 KB Output is correct
86 Correct 68 ms 9096 KB Output is correct
87 Correct 78 ms 9104 KB Output is correct
88 Correct 66 ms 9096 KB Output is correct
89 Correct 69 ms 9076 KB Output is correct
90 Correct 1 ms 212 KB Output is correct
91 Correct 1 ms 296 KB Output is correct
92 Correct 3 ms 696 KB Output is correct
93 Correct 71 ms 8996 KB Output is correct
94 Correct 1 ms 212 KB Output is correct
95 Correct 1 ms 212 KB Output is correct
96 Correct 0 ms 300 KB Output is correct
97 Correct 16 ms 2676 KB Output is correct
98 Correct 68 ms 10048 KB Output is correct
99 Correct 73 ms 10088 KB Output is correct
100 Correct 82 ms 10080 KB Output is correct
101 Correct 68 ms 10088 KB Output is correct
102 Correct 63 ms 10076 KB Output is correct
103 Correct 65 ms 10064 KB Output is correct
104 Correct 80 ms 9984 KB Output is correct
105 Correct 78 ms 10100 KB Output is correct