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Submission #651252

# Submission time Handle Problem Language Result Execution time Memory
651252 2022-10-18T03:44:40 Z dooompy Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 472 ms 10712 KB 
#include <bits/stdc++.h>

using namespace std;

int deg[50005];
vector<int> adj[50005];

set<pair<int, int>> s;
vector<int> neighbours;

bool erased[50005];

int ans = 0;
int sz;

bool check(int mask) {
    for (int i = 0; i < sz; i++) {
        if ((1 << i) & mask) {
            for (int j = 0; j < i; j++) {
                if (( 1 << j ) & mask) {
                    int a = neighbours[i], b = neighbours[j];

                    if (*lower_bound(adj[a].begin(), adj[a].end(), b) != b) return false;
                }
            }
        }
    }

    return true;
}

int main() {
    int n, k; cin >> n >> k;
    for (int i = 0; i < n; i++) {
        cin >> deg[i];
        s.insert({deg[i], i});

        for (int _ = 0; _ < deg[i]; _++) {
            int to; cin >> to;
            adj[i].push_back(to);
        }

        sort(adj[i].begin(), adj[i].end());
    }

    for (int i = 0; i < n; i++) {
        auto cur = *s.begin();
        s.erase(s.begin()); erased[cur.second] = true;

        neighbours.clear();
        neighbours.push_back(cur.second);
        for (auto nxt : adj[cur.second]) {
            if (erased[nxt]) continue;
            neighbours.push_back(nxt);
        }

        sz = neighbours.size();

        for (int mask = (1 << sz) - 1; mask >= (1 << ans); mask--) {
            if (__builtin_popcount(mask) <= ans) continue;
            if (check(mask)) ans = __builtin_popcount(mask);
        }

        for (auto nxt : adj[cur.second]) {
            if (erased[nxt]) continue;
            s.erase({deg[nxt], nxt}); deg[nxt]--;
            s.insert({deg[nxt], nxt});
        }

    }


    cout << ans;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1364 KB Output is correct
3 Correct 8 ms 1876 KB Output is correct
4 Correct 8 ms 1860 KB Output is correct
5 Correct 6 ms 1876 KB Output is correct
6 Correct 7 ms 1876 KB Output is correct
7 Correct 7 ms 1876 KB Output is correct
8 Correct 3 ms 1748 KB Output is correct
9 Correct 1 ms 1364 KB Output is correct
10 Correct 3 ms 1748 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1364 KB Output is correct
3 Correct 8 ms 1876 KB Output is correct
4 Correct 8 ms 1860 KB Output is correct
5 Correct 6 ms 1876 KB Output is correct
6 Correct 7 ms 1876 KB Output is correct
7 Correct 7 ms 1876 KB Output is correct
8 Correct 3 ms 1748 KB Output is correct
9 Correct 1 ms 1364 KB Output is correct
10 Correct 3 ms 1748 KB Output is correct
11 Correct 6 ms 1876 KB Output is correct
12 Correct 6 ms 1876 KB Output is correct
13 Correct 1 ms 1364 KB Output is correct
14 Correct 7 ms 1884 KB Output is correct
15 Correct 1 ms 1480 KB Output is correct
16 Correct 7 ms 1908 KB Output is correct
17 Correct 1 ms 1364 KB Output is correct
18 Correct 8 ms 1876 KB Output is correct
19 Correct 3 ms 1744 KB Output is correct
20 Correct 5 ms 1876 KB Output is correct
21 Correct 5 ms 1880 KB Output is correct
22 Correct 3 ms 1748 KB Output is correct
23 Correct 8 ms 1876 KB Output is correct
24 Correct 3 ms 1748 KB Output is correct
25 Correct 9 ms 1876 KB Output is correct
26 Correct 8 ms 1876 KB Output is correct
27 Correct 9 ms 1956 KB Output is correct
28 Correct 8 ms 1876 KB Output is correct
29 Correct 7 ms 1876 KB Output is correct
30 Correct 9 ms 1876 KB Output is correct
31 Correct 11 ms 2100 KB Output is correct
32 Correct 9 ms 1876 KB Output is correct
33 Correct 9 ms 1880 KB Output is correct
34 Correct 9 ms 1876 KB Output is correct
35 Correct 5 ms 1620 KB Output is correct
36 Correct 5 ms 1628 KB Output is correct
37 Correct 5 ms 1620 KB Output is correct
38 Correct 4 ms 1624 KB Output is correct
39 Correct 3 ms 1620 KB Output is correct
40 Correct 12 ms 2008 KB Output is correct
41 Correct 3 ms 1620 KB Output is correct
42 Correct 13 ms 2032 KB Output is correct
43 Correct 15 ms 2004 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1748 KB Output is correct
2 Correct 1 ms 1364 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 1 ms 1364 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1488 KB Output is correct
7 Correct 1 ms 1364 KB Output is correct
8 Correct 1 ms 1364 KB Output is correct
9 Correct 1 ms 1364 KB Output is correct
10 Correct 1 ms 1492 KB Output is correct
11 Correct 472 ms 10628 KB Output is correct
12 Correct 1 ms 1364 KB Output is correct
13 Correct 462 ms 10560 KB Output is correct
14 Correct 1 ms 1492 KB Output is correct
15 Correct 407 ms 10516 KB Output is correct
16 Correct 451 ms 10572 KB Output is correct
17 Correct 458 ms 10712 KB Output is correct
18 Correct 404 ms 10592 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1364 KB Output is correct
3 Correct 8 ms 1876 KB Output is correct
4 Correct 8 ms 1860 KB Output is correct
5 Correct 6 ms 1876 KB Output is correct
6 Correct 7 ms 1876 KB Output is correct
7 Correct 7 ms 1876 KB Output is correct
8 Correct 3 ms 1748 KB Output is correct
9 Correct 1 ms 1364 KB Output is correct
10 Correct 3 ms 1748 KB Output is correct
11 Correct 6 ms 1876 KB Output is correct
12 Correct 6 ms 1876 KB Output is correct
13 Correct 1 ms 1364 KB Output is correct
14 Correct 7 ms 1884 KB Output is correct
15 Correct 1 ms 1480 KB Output is correct
16 Correct 7 ms 1908 KB Output is correct
17 Correct 1 ms 1364 KB Output is correct
18 Correct 8 ms 1876 KB Output is correct
19 Correct 3 ms 1744 KB Output is correct
20 Correct 5 ms 1876 KB Output is correct
21 Correct 5 ms 1880 KB Output is correct
22 Correct 3 ms 1748 KB Output is correct
23 Correct 8 ms 1876 KB Output is correct
24 Correct 3 ms 1748 KB Output is correct
25 Correct 9 ms 1876 KB Output is correct
26 Correct 8 ms 1876 KB Output is correct
27 Correct 9 ms 1956 KB Output is correct
28 Correct 8 ms 1876 KB Output is correct
29 Correct 7 ms 1876 KB Output is correct
30 Correct 9 ms 1876 KB Output is correct
31 Correct 11 ms 2100 KB Output is correct
32 Correct 9 ms 1876 KB Output is correct
33 Correct 9 ms 1880 KB Output is correct
34 Correct 9 ms 1876 KB Output is correct
35 Correct 5 ms 1620 KB Output is correct
36 Correct 5 ms 1628 KB Output is correct
37 Correct 5 ms 1620 KB Output is correct
38 Correct 4 ms 1624 KB Output is correct
39 Correct 3 ms 1620 KB Output is correct
40 Correct 12 ms 2008 KB Output is correct
41 Correct 3 ms 1620 KB Output is correct
42 Correct 13 ms 2032 KB Output is correct
43 Correct 15 ms 2004 KB Output is correct
44 Correct 20 ms 2136 KB Output is correct
45 Correct 1 ms 1364 KB Output is correct
46 Correct 13 ms 2008 KB Output is correct
47 Correct 25 ms 2212 KB Output is correct
48 Correct 12 ms 1940 KB Output is correct
49 Correct 27 ms 2124 KB Output is correct
50 Correct 24 ms 2212 KB Output is correct
51 Correct 136 ms 2620 KB Output is correct
52 Correct 6 ms 1876 KB Output is correct
53 Correct 295 ms 2752 KB Output is correct
54 Correct 240 ms 2676 KB Output is correct
55 Correct 7 ms 1876 KB Output is correct
56 Correct 6 ms 1948 KB Output is correct
57 Correct 3 ms 1752 KB Output is correct
58 Correct 309 ms 2748 KB Output is correct
59 Correct 10 ms 2000 KB Output is correct
60 Correct 7 ms 1876 KB Output is correct
61 Correct 12 ms 2004 KB Output is correct
62 Correct 10 ms 1876 KB Output is correct
63 Correct 16 ms 2080 KB Output is correct
64 Correct 15 ms 2132 KB Output is correct
65 Correct 11 ms 2004 KB Output is correct
66 Correct 12 ms 1880 KB Output is correct
67 Correct 33 ms 2280 KB Output is correct
68 Correct 15 ms 2104 KB Output is correct
69 Correct 12 ms 1924 KB Output is correct
70 Correct 23 ms 2196 KB Output is correct
71 Correct 33 ms 2288 KB Output is correct
72 Correct 29 ms 2268 KB Output is correct
73 Correct 6 ms 1884 KB Output is correct
74 Correct 20 ms 2132 KB Output is correct
75 Correct 31 ms 2284 KB Output is correct
76 Correct 16 ms 2008 KB Output is correct
77 Correct 78 ms 2408 KB Output is correct
78 Correct 8 ms 1956 KB Output is correct
79 Correct 35 ms 1876 KB Output is correct
80 Correct 14 ms 2008 KB Output is correct
81 Correct 73 ms 2408 KB Output is correct
82 Correct 4 ms 1620 KB Output is correct
83 Correct 37 ms 1940 KB Output is correct
84 Correct 39 ms 2328 KB Output is correct
85 Correct 5 ms 1620 KB Output is correct
86 Correct 23 ms 2352 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1364 KB Output is correct
3 Correct 8 ms 1876 KB Output is correct
4 Correct 8 ms 1860 KB Output is correct
5 Correct 6 ms 1876 KB Output is correct
6 Correct 7 ms 1876 KB Output is correct
7 Correct 7 ms 1876 KB Output is correct
8 Correct 3 ms 1748 KB Output is correct
9 Correct 1 ms 1364 KB Output is correct
10 Correct 3 ms 1748 KB Output is correct
11 Correct 6 ms 1876 KB Output is correct
12 Correct 6 ms 1876 KB Output is correct
13 Correct 1 ms 1364 KB Output is correct
14 Correct 7 ms 1884 KB Output is correct
15 Correct 1 ms 1480 KB Output is correct
16 Correct 7 ms 1908 KB Output is correct
17 Correct 1 ms 1364 KB Output is correct
18 Correct 8 ms 1876 KB Output is correct
19 Correct 3 ms 1744 KB Output is correct
20 Correct 5 ms 1876 KB Output is correct
21 Correct 5 ms 1880 KB Output is correct
22 Correct 3 ms 1748 KB Output is correct
23 Correct 8 ms 1876 KB Output is correct
24 Correct 3 ms 1748 KB Output is correct
25 Correct 9 ms 1876 KB Output is correct
26 Correct 8 ms 1876 KB Output is correct
27 Correct 9 ms 1956 KB Output is correct
28 Correct 8 ms 1876 KB Output is correct
29 Correct 7 ms 1876 KB Output is correct
30 Correct 9 ms 1876 KB Output is correct
31 Correct 11 ms 2100 KB Output is correct
32 Correct 9 ms 1876 KB Output is correct
33 Correct 9 ms 1880 KB Output is correct
34 Correct 9 ms 1876 KB Output is correct
35 Correct 5 ms 1620 KB Output is correct
36 Correct 5 ms 1628 KB Output is correct
37 Correct 5 ms 1620 KB Output is correct
38 Correct 4 ms 1624 KB Output is correct
39 Correct 3 ms 1620 KB Output is correct
40 Correct 12 ms 2008 KB Output is correct
41 Correct 3 ms 1620 KB Output is correct
42 Correct 13 ms 2032 KB Output is correct
43 Correct 15 ms 2004 KB Output is correct
44 Correct 1 ms 1364 KB Output is correct
45 Correct 215 ms 8176 KB Output is correct
46 Correct 99 ms 6548 KB Output is correct
47 Correct 232 ms 8208 KB Output is correct
48 Correct 237 ms 8260 KB Output is correct
49 Correct 64 ms 6480 KB Output is correct
50 Correct 257 ms 8904 KB Output is correct
51 Correct 221 ms 8200 KB Output is correct
52 Correct 63 ms 6452 KB Output is correct
53 Correct 69 ms 6416 KB Output is correct
54 Correct 20 ms 4132 KB Output is correct
55 Correct 266 ms 8976 KB Output is correct
56 Correct 43 ms 5964 KB Output is correct
57 Correct 65 ms 6476 KB Output is correct
58 Correct 87 ms 6460 KB Output is correct
59 Correct 45 ms 5952 KB Output is correct
60 Correct 45 ms 5964 KB Output is correct
61 Correct 86 ms 6524 KB Output is correct
62 Correct 64 ms 6208 KB Output is correct
63 Correct 126 ms 6860 KB Output is correct
64 Correct 45 ms 5976 KB Output is correct
65 Correct 161 ms 7396 KB Output is correct
66 Correct 68 ms 6220 KB Output is correct
67 Correct 119 ms 6840 KB Output is correct
68 Correct 156 ms 7264 KB Output is correct
69 Correct 160 ms 7292 KB Output is correct
70 Correct 69 ms 6212 KB Output is correct
71 Correct 152 ms 7344 KB Output is correct
72 Correct 103 ms 6816 KB Output is correct
73 Correct 179 ms 7644 KB Output is correct
74 Correct 70 ms 6220 KB Output is correct
75 Correct 71 ms 4172 KB Output is correct
76 Correct 121 ms 6896 KB Output is correct
77 Correct 176 ms 7576 KB Output is correct
78 Correct 92 ms 4548 KB Output is correct
79 Correct 65 ms 4128 KB Output is correct
80 Correct 28 ms 2868 KB Output is correct
81 Correct 91 ms 4540 KB Output is correct
82 Correct 138 ms 6804 KB Output is correct
83 Correct 28 ms 2880 KB Output is correct
84 Correct 125 ms 6844 KB Output is correct