oj.uz

Submission #994190

# Submission time Handle Problem Language Result Execution time Memory
994190 2024-06-07T08:32:59 Z vjudge1 Jail (JOI22_jail) C++17
61 / 100
 5000 ms 20480 KB 
#include <bits/stdc++.h>
using namespace std;
vector<vector<int> > g, g2;
vector<int> vis;
bool dfs(int v, int go)
{

    vis[v] = 1;
    if(v == go)
    {//cout << v << endl;
        return 1;
    }

    for(auto x : g[v])
    {
        if(vis[x] == 0 && dfs(x, go)) return 1;
    }
    vis[v] = 2;
    return 0;
}
bool c(int v)
{

    vis[v] = 1;
    for(auto x : g2[v])
    {
        //cout << v << " " << x << endl;
        if(vis[x] == 1) return 1;
        if(vis[x] == 0) if(c(x)) return 1;
    }
    vis[v] = 2;
    return 0;
}
void solve()
{
    int n, m;
    cin >> n;
    g.assign(n + 1, {});
    vis.assign(n + 1, 0);
    for(int i = 0; i < n - 1; i++)
    {
        int x, y;
        cin >> x >> y;
        g[x].push_back(y);
        g[y].push_back(x);
    }
    cin >> m;
    g2.assign(m + 1, {});
    vector<int> a(m), b(m);
    for(int i = 0; i < m; i++) cin >> a[i] >> b[i];
    for(int i = 0; i < m; i++)
    {
        fill(vis.begin(), vis.end(), 0);
        dfs(a[i], b[i]);
        for(int j = 0; j < m; j++)
        {
            if(i == j) continue;
            if(vis[a[j]] == 1)
            {
                g2[i].push_back(j);
            }
            if(vis[b[j]] == 1)
            {
                //cout << i << " " << j << endl;
                g2[j].push_back(i);
            }
        }
    }
    vis.assign(m + 1, 0);
    for(int i = 0; i < m; i++)
    {
        if(vis[i] == 0 && c(i))
        {
            cout << "No\n";
            return;
        }
    }
    cout << "Yes\n";
}
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    int q;
    cin >> q;
    while(q--) solve();
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 6 ms 344 KB Output is correct
5 Correct 11 ms 472 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 193 ms 2988 KB Output is correct
10 Correct 447 ms 14272 KB Output is correct
11 Correct 4 ms 600 KB Output is correct
12 Correct 52 ms 1372 KB Output is correct
13 Execution timed out 5055 ms 20480 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 428 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 428 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 428 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 3 ms 552 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 348 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 2 ms 348 KB Output is correct
35 Correct 3 ms 348 KB Output is correct
36 Correct 2 ms 348 KB Output is correct
37 Correct 2 ms 348 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 428 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 3 ms 552 KB Output is correct
30 Correct 2 ms 348 KB Output is correct
31 Correct 2 ms 348 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 2 ms 348 KB Output is correct
35 Correct 3 ms 348 KB Output is correct
36 Correct 2 ms 348 KB Output is correct
37 Correct 2 ms 348 KB Output is correct
38 Correct 189 ms 2900 KB Output is correct
39 Correct 449 ms 14416 KB Output is correct
40 Correct 308 ms 3156 KB Output is correct
41 Correct 283 ms 1872 KB Output is correct
42 Correct 166 ms 3280 KB Output is correct
43 Correct 39 ms 1924 KB Output is correct
44 Correct 48 ms 876 KB Output is correct
45 Correct 1046 ms 8788 KB Output is correct
46 Correct 956 ms 8988 KB Output is correct
47 Correct 381 ms 11736 KB Output is correct
48 Correct 389 ms 11616 KB Output is correct
49 Correct 665 ms 9044 KB Output is correct
50 Correct 650 ms 9108 KB Output is correct
51 Correct 158 ms 9808 KB Output is correct
52 Correct 171 ms 9812 KB Output is correct
53 Correct 43 ms 1104 KB Output is correct
54 Correct 798 ms 8948 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 4 ms 460 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 3 ms 348 KB Output is correct
13 Correct 28 ms 472 KB Output is correct
14 Correct 25 ms 348 KB Output is correct
15 Correct 27 ms 348 KB Output is correct
16 Execution timed out 5097 ms 8276 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 6 ms 344 KB Output is correct
5 Correct 11 ms 472 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 3 ms 348 KB Output is correct
9 Correct 193 ms 2988 KB Output is correct
10 Correct 447 ms 14272 KB Output is correct
11 Correct 4 ms 600 KB Output is correct
12 Correct 52 ms 1372 KB Output is correct
13 Execution timed out 5055 ms 20480 KB Time limit exceeded
14 Halted 0 ms 0 KB -