oj.uz

Submission #955750

# Submission time Handle Problem Language Result Execution time Memory
955750 2024-03-31T11:45:20 Z aymanrs Jail (JOI22_jail) C++14
72 / 100
 3371 ms 1048576 KB 
#include<bits/stdc++.h>
using namespace std;
bool f; int T;
void dfs(int n, vector<int> g[], int p, int d[], int pa[]){
    pa[n] = p;
    d[n] = d[p]+1;
    for(int c : g[n]){
        if(c == p) continue;
        dfs(c, g, n, d, pa);
    }
}
struct node {
    vector<node*> l;
    bool v = false, c = false;
};
bool ans;
void dfs(node* n){
    n->v = n->c = true;
    for(node* c : n->l){
        if(!ans) break;
        if(c->c){
            ans = false;
            break;
        }
        if(!c->v) dfs(c);
    }
    n->c = false;
}
void solve(){
    int n,m;cin >> n;
    vector<int> g[n+1];
    for(int i = 1;i < n;i++){
        int u, v;cin >> u >> v;
        g[u].push_back(v);
        g[v].push_back(u);
    }
    int d[n+1], p[n+1];d[0] = 0;
    dfs(1, g, 0, d, p);
    cin >> m;
    int s[m], t[m];
    int sn[n+1], tn[n+1];
    fill(sn+1, sn+n+1, -1);fill(tn+1, tn+n+1, -1);
    for(int i = 0;i < m;i++){
        cin >> s[i] >> t[i];
        sn[s[i]] = i;
        tn[t[i]] = i;
    }
    node mg[m];
    for(int i = 0;i < m;i++){
        vector<int> path;
        if(d[s[i]] < d[t[i]]) swap(s[i], t[i]);
        while(d[s[i]] > d[t[i]]){
            path.push_back(s[i]);
            s[i] = p[s[i]];
        }
        while(true){
            path.push_back(s[i]);
            if(s[i] == t[i]) break;
            path.push_back(t[i]);
            s[i] = p[s[i]];t[i] = p[t[i]];
        }
        for(int _ : path){
            if(sn[_] != -1 && sn[_] != i) mg[i].l.push_back(&mg[sn[_]]);
            if(tn[_] != -1 && tn[_] != i) mg[tn[_]].l.push_back(&mg[i]);
        }
    }
    ans = true;
    for(int i = 0;i < m && ans;i++){
        if(!mg[i].v) dfs(&mg[i]);
    }
    if(ans)cout << "Yes\n";
    else cout << "No\n";
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int t;cin >> t;
    while(t--) solve();
}

Subtask #1
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 0 ms 348 KB Output is correct
4 Correct 8 ms 348 KB Output is correct
5 Correct 18 ms 684 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 3 ms 604 KB Output is correct
9 Correct 109 ms 3968 KB Output is correct
10 Correct 477 ms 20992 KB Output is correct
11 Correct 6 ms 344 KB Output is correct
12 Correct 45 ms 592 KB Output is correct
13 Correct 140 ms 75848 KB Output is correct
14 Correct 166 ms 105880 KB Output is correct
15 Runtime error 3371 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 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 472 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

# 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 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 472 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 348 KB Output is correct
17 Correct 1 ms 344 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 344 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 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 472 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 348 KB Output is correct
17 Correct 1 ms 344 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 344 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 604 KB Output is correct
30 Correct 2 ms 420 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 344 KB Output is correct
34 Correct 2 ms 344 KB Output is correct
35 Correct 3 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 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 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 2 ms 472 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 348 KB Output is correct
17 Correct 1 ms 344 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 344 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 604 KB Output is correct
30 Correct 2 ms 420 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 344 KB Output is correct
34 Correct 2 ms 344 KB Output is correct
35 Correct 3 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 117 ms 4308 KB Output is correct
39 Correct 474 ms 21072 KB Output is correct
40 Correct 57 ms 2060 KB Output is correct
41 Correct 24 ms 1116 KB Output is correct
42 Correct 49 ms 2396 KB Output is correct
43 Correct 19 ms 860 KB Output is correct
44 Correct 8 ms 648 KB Output is correct
45 Correct 30 ms 8796 KB Output is correct
46 Correct 30 ms 8840 KB Output is correct
47 Correct 90 ms 13084 KB Output is correct
48 Correct 99 ms 13348 KB Output is correct
49 Correct 33 ms 8788 KB Output is correct
50 Correct 34 ms 8984 KB Output is correct
51 Correct 27 ms 9476 KB Output is correct
52 Correct 27 ms 9564 KB Output is correct
53 Correct 7 ms 860 KB Output is correct
54 Correct 32 ms 8784 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 1 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 600 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 20 ms 512 KB Output is correct
14 Correct 26 ms 464 KB Output is correct
15 Correct 24 ms 348 KB Output is correct
16 Correct 35 ms 9820 KB Output is correct
17 Correct 84 ms 22888 KB Output is correct
18 Correct 211 ms 62156 KB Output is correct
19 Correct 39 ms 11628 KB Output is correct
20 Correct 38 ms 11604 KB Output is correct
21 Correct 41 ms 11632 KB Output is correct
22 Correct 85 ms 24136 KB Output is correct
23 Correct 65 ms 24896 KB Output is correct
24 Correct 69 ms 24524 KB Output is correct
25 Correct 69 ms 24772 KB Output is correct
26 Correct 68 ms 24696 KB Output is correct
27 Correct 74 ms 23240 KB Output is correct
28 Correct 73 ms 24212 KB Output is correct
29 Correct 68 ms 22220 KB Output is correct
30 Correct 54 ms 16848 KB Output is correct
31 Correct 54 ms 17152 KB Output is correct
32 Correct 49 ms 16848 KB Output is correct
33 Correct 67 ms 17128 KB Output is correct

Subtask #7
0 / 23.0

# 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 8 ms 348 KB Output is correct
5 Correct 18 ms 684 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 3 ms 604 KB Output is correct
9 Correct 109 ms 3968 KB Output is correct
10 Correct 477 ms 20992 KB Output is correct
11 Correct 6 ms 344 KB Output is correct
12 Correct 45 ms 592 KB Output is correct
13 Correct 140 ms 75848 KB Output is correct
14 Correct 166 ms 105880 KB Output is correct
15 Runtime error 3371 ms 1048576 KB Execution killed with signal 9
16 Halted 0 ms 0 KB -