oj.uz

Submission #933755

# Submission time Handle Problem Language Result Execution time Memory
933755 2024-02-26T09:06:03 Z LucaIlie Political Development (BOI17_politicaldevelopment) C++17
100 / 100
 2087 ms 29044 KB 
#include <bits/stdc++.h>

using namespace std;

struct pv {
    int u, a;

    bool operator < ( const pv &x ) const {
        if ( a == x.a )
            return u < x.u;
        return a < x.a;
    }
};

const int MAX_N = 5e4;
const int MAX_K = 10;
int perm[MAX_N], pos[MAX_N];
unordered_set<int> adj[MAX_N];
set<pv> vertMinSize;

int solve( vector<int> vertices ) {
    int n = vertices.size();
    for ( int i = 0; i < n; i++ )
        pos[vertices[i]] = i;

    int ans = 0;
    for ( int mask = 0; mask < (1 << n); mask++ ) {
        vector<int> v;
        for ( int i = 0; i < n; i++ ) {
            if ( (mask >> i) & 1)
                v.push_back( vertices[i] );
        }

        bool ok = true;
        for ( int x: v ) {
            for ( int y: v ) {
                if ( x != y && adj[x].find( y ) == adj[x].end() )
                    ok = false;
            }
        }

        if ( ok )
            ans = max( ans, (int)v.size() );
    }

    for ( int i = 0; i < n; i++ )
        pos[vertices[i]] = -1;

    return ans;
}

int main() {
    int n, k, minn = n;

    cin >> n >> k;
    for ( int u = 0; u < n; u++ ) {
        int d;
        cin >> d;
        for ( int j = 0; j < d; j++ ) {
            int v;
            cin >> v;
            adj[u].insert( v );
        }
        minn = min( minn, d );
        vertMinSize.insert( { u, d } );
    }
    for ( int i = 0; i < n; i++ )
        pos[i] = -1;

    if ( minn > k )
        exit( 1 );

    int ans = 0;
    for ( int i = 0; i < n; i++ ) {
        int u = vertMinSize.begin()->u;

        vector<int> vertices;
        vertices.push_back( u );
        for ( int v: adj[u] )
            vertices.push_back( v );
        ans = max( ans, solve( vertices ) );

        for ( int v: adj[u] ) {
            vertMinSize.erase( { v, (int)adj[v].size() } );
            adj[v].erase( u );
            vertMinSize.insert( { v, (int)adj[v].size() } );
        }
        vertMinSize.erase( { u, (int)adj[u].size() } );
        adj[u].clear();
    }

    cout << ans;

    return 0;
}

Compilation message

politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:53:15: warning: 'n' is used uninitialized in this function [-Wuninitialized]
   53 |     int n, k, minn = n;
      |               ^~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 8 ms 4208 KB Output is correct
4 Correct 7 ms 4292 KB Output is correct
5 Correct 7 ms 4188 KB Output is correct
6 Correct 8 ms 4400 KB Output is correct
7 Correct 8 ms 4412 KB Output is correct
8 Correct 3 ms 3420 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 3 ms 3420 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 8 ms 4208 KB Output is correct
4 Correct 7 ms 4292 KB Output is correct
5 Correct 7 ms 4188 KB Output is correct
6 Correct 8 ms 4400 KB Output is correct
7 Correct 8 ms 4412 KB Output is correct
8 Correct 3 ms 3420 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 3 ms 3420 KB Output is correct
11 Correct 8 ms 4188 KB Output is correct
12 Correct 7 ms 4320 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct
14 Correct 7 ms 4388 KB Output is correct
15 Correct 1 ms 3164 KB Output is correct
16 Correct 8 ms 4188 KB Output is correct
17 Correct 1 ms 3180 KB Output is correct
18 Correct 8 ms 4188 KB Output is correct
19 Correct 3 ms 3388 KB Output is correct
20 Correct 5 ms 3932 KB Output is correct
21 Correct 5 ms 3932 KB Output is correct
22 Correct 4 ms 3420 KB Output is correct
23 Correct 9 ms 4184 KB Output is correct
24 Correct 3 ms 3420 KB Output is correct
25 Correct 9 ms 4444 KB Output is correct
26 Correct 9 ms 4188 KB Output is correct
27 Correct 7 ms 4188 KB Output is correct
28 Correct 9 ms 4188 KB Output is correct
29 Correct 7 ms 4188 KB Output is correct
30 Correct 9 ms 4440 KB Output is correct
31 Correct 9 ms 4444 KB Output is correct
32 Correct 9 ms 4444 KB Output is correct
33 Correct 9 ms 4476 KB Output is correct
34 Correct 10 ms 4444 KB Output is correct
35 Correct 5 ms 3676 KB Output is correct
36 Correct 5 ms 3676 KB Output is correct
37 Correct 5 ms 3676 KB Output is correct
38 Correct 4 ms 3416 KB Output is correct
39 Correct 5 ms 3932 KB Output is correct
40 Correct 14 ms 4700 KB Output is correct
41 Correct 6 ms 3420 KB Output is correct
42 Correct 17 ms 4712 KB Output is correct
43 Correct 14 ms 4700 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3420 KB Output is correct
2 Correct 1 ms 3184 KB Output is correct
3 Correct 1 ms 3052 KB Output is correct
4 Correct 1 ms 3164 KB Output is correct
5 Correct 1 ms 3188 KB Output is correct
6 Correct 1 ms 3168 KB Output is correct
7 Correct 2 ms 3180 KB Output is correct
8 Correct 1 ms 3164 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 1 ms 3164 KB Output is correct
11 Correct 1338 ms 26808 KB Output is correct
12 Correct 1 ms 3164 KB Output is correct
13 Correct 1336 ms 27916 KB Output is correct
14 Correct 1 ms 3164 KB Output is correct
15 Correct 1338 ms 27988 KB Output is correct
16 Correct 1359 ms 27912 KB Output is correct
17 Correct 1331 ms 27972 KB Output is correct
18 Correct 1348 ms 27920 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 8 ms 4208 KB Output is correct
4 Correct 7 ms 4292 KB Output is correct
5 Correct 7 ms 4188 KB Output is correct
6 Correct 8 ms 4400 KB Output is correct
7 Correct 8 ms 4412 KB Output is correct
8 Correct 3 ms 3420 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 3 ms 3420 KB Output is correct
11 Correct 8 ms 4188 KB Output is correct
12 Correct 7 ms 4320 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct
14 Correct 7 ms 4388 KB Output is correct
15 Correct 1 ms 3164 KB Output is correct
16 Correct 8 ms 4188 KB Output is correct
17 Correct 1 ms 3180 KB Output is correct
18 Correct 8 ms 4188 KB Output is correct
19 Correct 3 ms 3388 KB Output is correct
20 Correct 5 ms 3932 KB Output is correct
21 Correct 5 ms 3932 KB Output is correct
22 Correct 4 ms 3420 KB Output is correct
23 Correct 9 ms 4184 KB Output is correct
24 Correct 3 ms 3420 KB Output is correct
25 Correct 9 ms 4444 KB Output is correct
26 Correct 9 ms 4188 KB Output is correct
27 Correct 7 ms 4188 KB Output is correct
28 Correct 9 ms 4188 KB Output is correct
29 Correct 7 ms 4188 KB Output is correct
30 Correct 9 ms 4440 KB Output is correct
31 Correct 9 ms 4444 KB Output is correct
32 Correct 9 ms 4444 KB Output is correct
33 Correct 9 ms 4476 KB Output is correct
34 Correct 10 ms 4444 KB Output is correct
35 Correct 5 ms 3676 KB Output is correct
36 Correct 5 ms 3676 KB Output is correct
37 Correct 5 ms 3676 KB Output is correct
38 Correct 4 ms 3416 KB Output is correct
39 Correct 5 ms 3932 KB Output is correct
40 Correct 14 ms 4700 KB Output is correct
41 Correct 6 ms 3420 KB Output is correct
42 Correct 17 ms 4712 KB Output is correct
43 Correct 14 ms 4700 KB Output is correct
44 Correct 145 ms 5216 KB Output is correct
45 Correct 1 ms 3164 KB Output is correct
46 Correct 15 ms 4700 KB Output is correct
47 Correct 42 ms 5468 KB Output is correct
48 Correct 14 ms 4712 KB Output is correct
49 Correct 43 ms 5476 KB Output is correct
50 Correct 47 ms 5468 KB Output is correct
51 Correct 905 ms 7256 KB Output is correct
52 Correct 7 ms 4200 KB Output is correct
53 Correct 1181 ms 7560 KB Output is correct
54 Correct 2087 ms 7720 KB Output is correct
55 Correct 8 ms 4188 KB Output is correct
56 Correct 7 ms 4216 KB Output is correct
57 Correct 3 ms 3420 KB Output is correct
58 Correct 1166 ms 7560 KB Output is correct
59 Correct 15 ms 4700 KB Output is correct
60 Correct 9 ms 4188 KB Output is correct
61 Correct 19 ms 4712 KB Output is correct
62 Correct 15 ms 4700 KB Output is correct
63 Correct 142 ms 5416 KB Output is correct
64 Correct 78 ms 5232 KB Output is correct
65 Correct 12 ms 4444 KB Output is correct
66 Correct 15 ms 4504 KB Output is correct
67 Correct 143 ms 5736 KB Output is correct
68 Correct 72 ms 5228 KB Output is correct
69 Correct 13 ms 4444 KB Output is correct
70 Correct 39 ms 5232 KB Output is correct
71 Correct 142 ms 5808 KB Output is correct
72 Correct 107 ms 5724 KB Output is correct
73 Correct 7 ms 4188 KB Output is correct
74 Correct 41 ms 5220 KB Output is correct
75 Correct 104 ms 5752 KB Output is correct
76 Correct 19 ms 4956 KB Output is correct
77 Correct 343 ms 6140 KB Output is correct
78 Correct 7 ms 4188 KB Output is correct
79 Correct 162 ms 4644 KB Output is correct
80 Correct 19 ms 4956 KB Output is correct
81 Correct 338 ms 6144 KB Output is correct
82 Correct 4 ms 3420 KB Output is correct
83 Correct 166 ms 4644 KB Output is correct
84 Correct 119 ms 5468 KB Output is correct
85 Correct 4 ms 3420 KB Output is correct
86 Correct 127 ms 5580 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 8 ms 4208 KB Output is correct
4 Correct 7 ms 4292 KB Output is correct
5 Correct 7 ms 4188 KB Output is correct
6 Correct 8 ms 4400 KB Output is correct
7 Correct 8 ms 4412 KB Output is correct
8 Correct 3 ms 3420 KB Output is correct
9 Correct 1 ms 3164 KB Output is correct
10 Correct 3 ms 3420 KB Output is correct
11 Correct 8 ms 4188 KB Output is correct
12 Correct 7 ms 4320 KB Output is correct
13 Correct 1 ms 3164 KB Output is correct
14 Correct 7 ms 4388 KB Output is correct
15 Correct 1 ms 3164 KB Output is correct
16 Correct 8 ms 4188 KB Output is correct
17 Correct 1 ms 3180 KB Output is correct
18 Correct 8 ms 4188 KB Output is correct
19 Correct 3 ms 3388 KB Output is correct
20 Correct 5 ms 3932 KB Output is correct
21 Correct 5 ms 3932 KB Output is correct
22 Correct 4 ms 3420 KB Output is correct
23 Correct 9 ms 4184 KB Output is correct
24 Correct 3 ms 3420 KB Output is correct
25 Correct 9 ms 4444 KB Output is correct
26 Correct 9 ms 4188 KB Output is correct
27 Correct 7 ms 4188 KB Output is correct
28 Correct 9 ms 4188 KB Output is correct
29 Correct 7 ms 4188 KB Output is correct
30 Correct 9 ms 4440 KB Output is correct
31 Correct 9 ms 4444 KB Output is correct
32 Correct 9 ms 4444 KB Output is correct
33 Correct 9 ms 4476 KB Output is correct
34 Correct 10 ms 4444 KB Output is correct
35 Correct 5 ms 3676 KB Output is correct
36 Correct 5 ms 3676 KB Output is correct
37 Correct 5 ms 3676 KB Output is correct
38 Correct 4 ms 3416 KB Output is correct
39 Correct 5 ms 3932 KB Output is correct
40 Correct 14 ms 4700 KB Output is correct
41 Correct 6 ms 3420 KB Output is correct
42 Correct 17 ms 4712 KB Output is correct
43 Correct 14 ms 4700 KB Output is correct
44 Correct 1 ms 3160 KB Output is correct
45 Correct 293 ms 22612 KB Output is correct
46 Correct 112 ms 17068 KB Output is correct
47 Correct 307 ms 22612 KB Output is correct
48 Correct 309 ms 22636 KB Output is correct
49 Correct 88 ms 15600 KB Output is correct
50 Correct 343 ms 28512 KB Output is correct
51 Correct 308 ms 22692 KB Output is correct
52 Correct 80 ms 15188 KB Output is correct
53 Correct 73 ms 15460 KB Output is correct
54 Correct 22 ms 5724 KB Output is correct
55 Correct 337 ms 29044 KB Output is correct
56 Correct 55 ms 13140 KB Output is correct
57 Correct 90 ms 15164 KB Output is correct
58 Correct 114 ms 16828 KB Output is correct
59 Correct 51 ms 13128 KB Output is correct
60 Correct 58 ms 12884 KB Output is correct
61 Correct 112 ms 16724 KB Output is correct
62 Correct 80 ms 14932 KB Output is correct
63 Correct 155 ms 17516 KB Output is correct
64 Correct 52 ms 12964 KB Output is correct
65 Correct 208 ms 19592 KB Output is correct
66 Correct 75 ms 14932 KB Output is correct
67 Correct 152 ms 17740 KB Output is correct
68 Correct 209 ms 19368 KB Output is correct
69 Correct 214 ms 19596 KB Output is correct
70 Correct 80 ms 14932 KB Output is correct
71 Correct 195 ms 19148 KB Output is correct
72 Correct 136 ms 17868 KB Output is correct
73 Correct 243 ms 20564 KB Output is correct
74 Correct 80 ms 14864 KB Output is correct
75 Correct 75 ms 10588 KB Output is correct
76 Correct 130 ms 17748 KB Output is correct
77 Correct 257 ms 20712 KB Output is correct
78 Correct 104 ms 11944 KB Output is correct
79 Correct 71 ms 10576 KB Output is correct
80 Correct 33 ms 7000 KB Output is correct
81 Correct 107 ms 11940 KB Output is correct
82 Correct 198 ms 18772 KB Output is correct
83 Correct 40 ms 7004 KB Output is correct
84 Correct 176 ms 18676 KB Output is correct