oj.uz

답안 #994297

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
994297 2024-06-07T10:27:48 Z gortomi Jail (JOI22_jail) C++17
60 / 100
 434 ms 1048576 KB 
#include <bits/stdc++.h>
using namespace std;
vector<vector<int> > g, g2;
vector<int> vis;
vector<int> path;
vector<vector<int> > p;
void dfs(int v, int pa)
{

    path.push_back(v);
    p[v] = path;
    for(auto x : g[v])
    {
        if(x != pa) dfs(x, v);
    }
    path.pop_back();
}
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);
    p.assign(n + 1, {});
    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];
    dfs(1, 0);
    //return;
    vector<vector<int> > inc(n + 1);
    for(int i = 0; i < m; i++)
    {
        vector<int> fi = p[a[i]], se = p[b[i]];
        int y = fi.size(), z = se.size();
        int be = 0;
        while(be < y - 1 && be < z - 1)
        {
            if(fi[be + 1] == se[be + 1]) be++;
            else break;
        }
        for(int j = be; j < y; j++)
        {
            inc[fi[j]].push_back(i);
        }
        for(int j = be; j < z; j++)
        {
            inc[se[j]].push_back(i);
        }
    }
    for(int i = 0; i < m; i++)
    {
        for(auto x : inc[a[i]])
        {
            if(x != i) g2[x].push_back(i);
        }
        for(auto x : inc[b[i]])
        {

            if(x != i) g2[i].push_back(x);
        }
    }
    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

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 8 ms 348 KB Output is correct
5 Correct 17 ms 892 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 3 ms 860 KB Output is correct
9 Correct 263 ms 86212 KB Output is correct
10 Runtime error 423 ms 1048576 KB Execution killed with signal 9
11 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 604 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 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 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 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct

Subtask #3
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 604 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 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 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 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 604 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 552 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

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 604 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 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 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 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 604 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 552 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 860 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 3 ms 604 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 2 ms 604 KB Output is correct
36 Correct 1 ms 500 KB Output is correct
37 Correct 1 ms 348 KB Output is correct

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 604 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 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 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 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 604 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 552 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 860 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 3 ms 604 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 2 ms 604 KB Output is correct
36 Correct 1 ms 500 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 259 ms 85164 KB Output is correct
39 Runtime error 434 ms 1048576 KB Execution killed with signal 9
40 Halted 0 ms 0 KB -

Subtask #6
11.0 / 11.0

# 결과 실행 시간 메모리 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 5 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 17 ms 508 KB Output is correct
14 Correct 24 ms 348 KB Output is correct
15 Correct 19 ms 512 KB Output is correct
16 Correct 50 ms 21760 KB Output is correct
17 Correct 103 ms 34452 KB Output is correct
18 Correct 214 ms 62620 KB Output is correct
19 Correct 54 ms 23748 KB Output is correct
20 Correct 61 ms 23888 KB Output is correct
21 Correct 62 ms 23892 KB Output is correct
22 Correct 109 ms 36300 KB Output is correct
23 Correct 95 ms 35704 KB Output is correct
24 Correct 90 ms 35788 KB Output is correct
25 Correct 98 ms 36368 KB Output is correct
26 Correct 95 ms 36048 KB Output is correct
27 Correct 100 ms 32236 KB Output is correct
28 Correct 96 ms 33220 KB Output is correct
29 Correct 103 ms 31180 KB Output is correct
30 Correct 79 ms 26496 KB Output is correct
31 Correct 76 ms 26832 KB Output is correct
32 Correct 70 ms 26312 KB Output is correct
33 Correct 69 ms 26824 KB Output is correct

Subtask #7
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 8 ms 348 KB Output is correct
5 Correct 17 ms 892 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 3 ms 860 KB Output is correct
9 Correct 263 ms 86212 KB Output is correct
10 Runtime error 423 ms 1048576 KB Execution killed with signal 9
11 Halted 0 ms 0 KB -