oj.uz

Submission #880671

# Submission time Handle Problem Language Result Execution time Memory
880671 2023-11-29T20:01:40 Z LucaIlie Jail (JOI22_jail) C++17
72 / 100
 4380 ms 1048576 KB 
#include <bits/stdc++.h>

using namespace std;

struct prisoner {
    int b, w;
};

const int MAX_N = 1.2e5;
const int MAX_M = MAX_N;
int parent[MAX_N + 1], depth[MAX_N + 1], bedroom[MAX_N + 1], workroom[MAX_N + 1], in[MAX_N + 1];
vector <int> edges[MAX_N + 1], g[MAX_M + 1];
prisoner prisoners[MAX_M + 1];

void dfs( int u, int p ) {
    depth[u] = depth[p] + 1;
    parent[u] = p;
    for ( int v: edges[u] ) {
        if ( v == p )
            continue;
        dfs( v, u );
    }
}

int main() {
    int t;

    cin >> t;
    while ( t-- ) {
        int n, m;

        cin >> n;
        for ( int v = 1; v <= n; v++ ) {
            edges[v].clear();
            workroom[v] = 0;
            bedroom[v] = 0;
        }
        for ( int i = 0; i < n - 1; i++ ) {
            int u, v;
            cin >> u >> v;
            edges[u].push_back( v );
            edges[v].push_back( u );
        }
        cin >> m;
        for ( int i = 1; i <= m; i++ ) {
            g[i].clear();
            in[i] = 0;
        }
        for ( int i = 1; i <= m; i++ )
            cin >> prisoners[i].b >> prisoners[i].w;

        dfs( 1, 0 );

        for ( int i = 1; i <= m; i++ ) {
            bedroom[prisoners[i].b] = i;
            workroom[prisoners[i].w] = i;
        }
        for ( int i = 1; i <= m; i++ ) {
            int u = prisoners[i].b, v = prisoners[i].w;

            if ( depth[u] < depth[v] )
                swap( u, v );

            vector <int> b, w;
            while ( depth[u] > depth[v] ) {
                if ( bedroom[u] != 0 )
                    b.push_back( bedroom[u] );
                if ( workroom[u] != 0 )
                    w.push_back( workroom[u] );
                u = parent[u];
            }

            while ( u != v ) {
                if ( bedroom[u] != 0 )
                    b.push_back( bedroom[u] );
                if ( workroom[u] != 0 )
                    w.push_back( workroom[u] );
                if ( bedroom[v] != 0 )
                    b.push_back( bedroom[v] );
                if ( workroom[v] != 0 )
                    w.push_back( workroom[v] );
                u = parent[u];
                v = parent[v];
            }
            if ( bedroom[u] != 0 )
                b.push_back( bedroom[u] );
            if ( workroom[u] != 0 )
                w.push_back( workroom[u] );
            
            for ( int j: b ) {
                if ( i == j )
                    continue;
                g[j].push_back( i );
            }
            for ( int j: w ) {
                if ( i == j )
                    continue;
                g[i].push_back( j );
            }
        }
        for ( int i = 1; i <= m; i++ ) {
            sort( g[i].begin(), g[i].end() );
            g[i].resize( unique( g[i].begin(), g[i].end() ) - g[i].begin() );
            for ( int j: g[i] )
                in[j]++;
        }

        queue <int> q;
        for ( int i = 1; i <= m; i++ ) {
            if ( in[i] == 0 )
                q.push( i );
        }
        int pasi = 0;
        while ( !q.empty() ) {
            int u = q.front();
            q.pop();
            pasi++;

            for ( int v: g[u] ) {
                in[v]--;
                if ( in[v] == 0 )
                    q.push( v );
            }
        }

        cout << (pasi == m ? "Yes\n" : "No\n");
    }

    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 18 ms 8780 KB Output is correct
5 Correct 38 ms 9308 KB Output is correct
6 Correct 3 ms 8540 KB Output is correct
7 Correct 3 ms 8540 KB Output is correct
8 Correct 7 ms 8796 KB Output is correct
9 Correct 128 ms 12304 KB Output is correct
10 Correct 205 ms 21252 KB Output is correct
11 Correct 12 ms 8796 KB Output is correct
12 Correct 86 ms 9668 KB Output is correct
13 Correct 224 ms 50260 KB Output is correct
14 Correct 282 ms 64800 KB Output is correct
15 Runtime error 4380 ms 1048576 KB Execution killed with signal 9
16 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 3 ms 8540 KB Output is correct
4 Correct 4 ms 8540 KB Output is correct
5 Correct 4 ms 8540 KB Output is correct
6 Correct 3 ms 8540 KB Output is correct
7 Correct 3 ms 8636 KB Output is correct
8 Correct 3 ms 8540 KB Output is correct
9 Correct 3 ms 8540 KB Output is correct
10 Correct 3 ms 8544 KB Output is correct
11 Correct 5 ms 8540 KB Output is correct
12 Correct 3 ms 8632 KB Output is correct
13 Correct 3 ms 8540 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 3 ms 8540 KB Output is correct
4 Correct 4 ms 8540 KB Output is correct
5 Correct 4 ms 8540 KB Output is correct
6 Correct 3 ms 8540 KB Output is correct
7 Correct 3 ms 8636 KB Output is correct
8 Correct 3 ms 8540 KB Output is correct
9 Correct 3 ms 8540 KB Output is correct
10 Correct 3 ms 8544 KB Output is correct
11 Correct 5 ms 8540 KB Output is correct
12 Correct 3 ms 8632 KB Output is correct
13 Correct 3 ms 8540 KB Output is correct
14 Correct 2 ms 8548 KB Output is correct
15 Correct 2 ms 8536 KB Output is correct
16 Correct 3 ms 8736 KB Output is correct
17 Correct 3 ms 8540 KB Output is correct
18 Correct 3 ms 8540 KB Output is correct
19 Correct 3 ms 8540 KB Output is correct
20 Correct 3 ms 8540 KB Output is correct
21 Correct 3 ms 8536 KB Output is correct
22 Correct 4 ms 8536 KB Output is correct
23 Correct 2 ms 8540 KB Output is correct
24 Correct 2 ms 8540 KB Output is correct
25 Correct 4 ms 8632 KB Output is correct
26 Correct 2 ms 8540 KB Output is correct
27 Correct 4 ms 8540 KB Output is correct
28 Correct 2 ms 8648 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 3 ms 8540 KB Output is correct
4 Correct 4 ms 8540 KB Output is correct
5 Correct 4 ms 8540 KB Output is correct
6 Correct 3 ms 8540 KB Output is correct
7 Correct 3 ms 8636 KB Output is correct
8 Correct 3 ms 8540 KB Output is correct
9 Correct 3 ms 8540 KB Output is correct
10 Correct 3 ms 8544 KB Output is correct
11 Correct 5 ms 8540 KB Output is correct
12 Correct 3 ms 8632 KB Output is correct
13 Correct 3 ms 8540 KB Output is correct
14 Correct 2 ms 8548 KB Output is correct
15 Correct 2 ms 8536 KB Output is correct
16 Correct 3 ms 8736 KB Output is correct
17 Correct 3 ms 8540 KB Output is correct
18 Correct 3 ms 8540 KB Output is correct
19 Correct 3 ms 8540 KB Output is correct
20 Correct 3 ms 8540 KB Output is correct
21 Correct 3 ms 8536 KB Output is correct
22 Correct 4 ms 8536 KB Output is correct
23 Correct 2 ms 8540 KB Output is correct
24 Correct 2 ms 8540 KB Output is correct
25 Correct 4 ms 8632 KB Output is correct
26 Correct 2 ms 8540 KB Output is correct
27 Correct 4 ms 8540 KB Output is correct
28 Correct 2 ms 8648 KB Output is correct
29 Correct 6 ms 8624 KB Output is correct
30 Correct 4 ms 8540 KB Output is correct
31 Correct 5 ms 8536 KB Output is correct
32 Correct 4 ms 8664 KB Output is correct
33 Correct 5 ms 8536 KB Output is correct
34 Correct 4 ms 8536 KB Output is correct
35 Correct 6 ms 8660 KB Output is correct
36 Correct 3 ms 8664 KB Output is correct
37 Correct 3 ms 8540 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8536 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 3 ms 8540 KB Output is correct
4 Correct 4 ms 8540 KB Output is correct
5 Correct 4 ms 8540 KB Output is correct
6 Correct 3 ms 8540 KB Output is correct
7 Correct 3 ms 8636 KB Output is correct
8 Correct 3 ms 8540 KB Output is correct
9 Correct 3 ms 8540 KB Output is correct
10 Correct 3 ms 8544 KB Output is correct
11 Correct 5 ms 8540 KB Output is correct
12 Correct 3 ms 8632 KB Output is correct
13 Correct 3 ms 8540 KB Output is correct
14 Correct 2 ms 8548 KB Output is correct
15 Correct 2 ms 8536 KB Output is correct
16 Correct 3 ms 8736 KB Output is correct
17 Correct 3 ms 8540 KB Output is correct
18 Correct 3 ms 8540 KB Output is correct
19 Correct 3 ms 8540 KB Output is correct
20 Correct 3 ms 8540 KB Output is correct
21 Correct 3 ms 8536 KB Output is correct
22 Correct 4 ms 8536 KB Output is correct
23 Correct 2 ms 8540 KB Output is correct
24 Correct 2 ms 8540 KB Output is correct
25 Correct 4 ms 8632 KB Output is correct
26 Correct 2 ms 8540 KB Output is correct
27 Correct 4 ms 8540 KB Output is correct
28 Correct 2 ms 8648 KB Output is correct
29 Correct 6 ms 8624 KB Output is correct
30 Correct 4 ms 8540 KB Output is correct
31 Correct 5 ms 8536 KB Output is correct
32 Correct 4 ms 8664 KB Output is correct
33 Correct 5 ms 8536 KB Output is correct
34 Correct 4 ms 8536 KB Output is correct
35 Correct 6 ms 8660 KB Output is correct
36 Correct 3 ms 8664 KB Output is correct
37 Correct 3 ms 8540 KB Output is correct
38 Correct 131 ms 12116 KB Output is correct
39 Correct 205 ms 21276 KB Output is correct
40 Correct 82 ms 11088 KB Output is correct
41 Correct 69 ms 9932 KB Output is correct
42 Correct 74 ms 11348 KB Output is correct
43 Correct 46 ms 10112 KB Output is correct
44 Correct 15 ms 9052 KB Output is correct
45 Correct 72 ms 14396 KB Output is correct
46 Correct 76 ms 14212 KB Output is correct
47 Correct 88 ms 17084 KB Output is correct
48 Correct 89 ms 16976 KB Output is correct
49 Correct 72 ms 14416 KB Output is correct
50 Correct 92 ms 14452 KB Output is correct
51 Correct 67 ms 15208 KB Output is correct
52 Correct 68 ms 15184 KB Output is correct
53 Correct 16 ms 9304 KB Output is correct
54 Correct 78 ms 14164 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8540 KB Output is correct
2 Correct 2 ms 8540 KB Output is correct
3 Correct 2 ms 8648 KB Output is correct
4 Correct 2 ms 8540 KB Output is correct
5 Correct 12 ms 8808 KB Output is correct
6 Correct 3 ms 8540 KB Output is correct
7 Correct 2 ms 8540 KB Output is correct
8 Correct 2 ms 8540 KB Output is correct
9 Correct 2 ms 8540 KB Output is correct
10 Correct 2 ms 8540 KB Output is correct
11 Correct 2 ms 8540 KB Output is correct
12 Correct 3 ms 8540 KB Output is correct
13 Correct 39 ms 9048 KB Output is correct
14 Correct 48 ms 9300 KB Output is correct
15 Correct 44 ms 9368 KB Output is correct
16 Correct 73 ms 14764 KB Output is correct
17 Correct 157 ms 20828 KB Output is correct
18 Correct 331 ms 40196 KB Output is correct
19 Correct 76 ms 14928 KB Output is correct
20 Correct 81 ms 15016 KB Output is correct
21 Correct 84 ms 14956 KB Output is correct
22 Correct 181 ms 21200 KB Output is correct
23 Correct 126 ms 21460 KB Output is correct
24 Correct 144 ms 21460 KB Output is correct
25 Correct 143 ms 21324 KB Output is correct
26 Correct 141 ms 21196 KB Output is correct
27 Correct 139 ms 19940 KB Output is correct
28 Correct 137 ms 19932 KB Output is correct
29 Correct 130 ms 20068 KB Output is correct
30 Correct 100 ms 17320 KB Output is correct
31 Correct 103 ms 17252 KB Output is correct
32 Correct 103 ms 17208 KB Output is correct
33 Correct 114 ms 17352 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 2 ms 8540 KB Output is correct
4 Correct 18 ms 8780 KB Output is correct
5 Correct 38 ms 9308 KB Output is correct
6 Correct 3 ms 8540 KB Output is correct
7 Correct 3 ms 8540 KB Output is correct
8 Correct 7 ms 8796 KB Output is correct
9 Correct 128 ms 12304 KB Output is correct
10 Correct 205 ms 21252 KB Output is correct
11 Correct 12 ms 8796 KB Output is correct
12 Correct 86 ms 9668 KB Output is correct
13 Correct 224 ms 50260 KB Output is correct
14 Correct 282 ms 64800 KB Output is correct
15 Runtime error 4380 ms 1048576 KB Execution killed with signal 9
16 Halted 0 ms 0 KB -