oj.uz

Submission #994336

# Submission time Handle Problem Language Result Execution time Memory
994336 2024-06-07T11:50:44 Z Albertstein Jail (JOI22_jail) C++17
72 / 100
 4223 ms 1048576 KB 
#include <bits/stdc++.h>
using namespace std;

const int maxn = 120'001, mbit = 18;
int n, m;
int dth[maxn];
int S[maxn], T[maxn];
vector <vector <int> > G;
vector <int> Si, Ti;
vector <int> w;
vector <vector <int> > g;
vector <int> stp;

void dfs_pa(int u = 1){
    for(auto v : G[u]){
        if(v != stp[u]){
            stp[v] = u;
            dth[v] = dth[u] + 1;
            dfs_pa(v);
        }
    }
}


bool dfs_loop(int u){
    if(w[u] == 1) return 1;
    if(w[u] == 2) return 0;
    w[u] = 1;
    for(auto v : g[u]){
        if(dfs_loop(v)) return 1;
    }
    w[u] = 2;
    return 0;
}

bool sol(){
    cin >> n;
    G.assign(n + 1, vector<int>());
    stp.assign(n + 1, 0);
    for(int i = 1; i < n; i++){
        int u, v;
        cin >> u >> v;
        G[u].push_back(v);
        G[v].push_back(u);
    }
    dth[1] = 0;
    dfs_pa();
    //===============
    cin >> m;
    g.assign(m + 1, vector<int>());
    Si.assign(n + 1, -1);
    Ti.assign(n + 1, -1);
    for(int i = 0; i < m; i++){
        cin >> S[i] >> T[i];
        Si[S[i]] = i;
        Ti[T[i]] = i;
    }
    for(int i = 0; i < m; i++){
        int u = S[i], v = T[i];
        while(u != v){
            if(dth[u] < dth[v]) swap(u, v);
            int s = Si[u], t = Ti[u];
            if(s != -1 && s != i) g[i].push_back(s);
            if(t != -1 && t != i) g[t].push_back(i);
            u = stp[u];
        }
        int s = Si[u], t = Ti[u];
        if(s != -1 && s != i) g[i].push_back(s);
        if(t != -1 && t != i) g[t].push_back(i);
    }
    w.assign(m + 1, 0);
    for(int i = 0; i < m; i++){
        if(dfs_loop(i)) return 0;
    }
    return 1;
}

int main(){
    int Q;
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> Q;
    while(Q--){
        cout << (sol() ? "Yes\n" : "No\n");
    }
    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 6 ms 348 KB Output is correct
5 Correct 11 ms 492 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 604 KB Output is correct
9 Correct 50 ms 3036 KB Output is correct
10 Correct 179 ms 17796 KB Output is correct
11 Correct 4 ms 348 KB Output is correct
12 Correct 22 ms 492 KB Output is correct
13 Correct 95 ms 47820 KB Output is correct
14 Correct 108 ms 62924 KB Output is correct
15 Runtime error 4223 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 344 KB Output is correct
3 Correct 1 ms 504 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 344 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 344 KB Output is correct
10 Correct 1 ms 344 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 344 KB Output is correct
3 Correct 1 ms 504 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 344 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 344 KB Output is correct
10 Correct 1 ms 344 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 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 0 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 344 KB Output is correct
3 Correct 1 ms 504 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 344 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 344 KB Output is correct
10 Correct 1 ms 344 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 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 0 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 1 ms 604 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 528 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 2 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 344 KB Output is correct
3 Correct 1 ms 504 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 344 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 344 KB Output is correct
10 Correct 1 ms 344 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 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 0 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 1 ms 604 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 528 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 2 ms 348 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 49 ms 3152 KB Output is correct
39 Correct 183 ms 17748 KB Output is correct
40 Correct 28 ms 2136 KB Output is correct
41 Correct 16 ms 1016 KB Output is correct
42 Correct 31 ms 2388 KB Output is correct
43 Correct 15 ms 856 KB Output is correct
44 Correct 4 ms 600 KB Output is correct
45 Correct 31 ms 8788 KB Output is correct
46 Correct 28 ms 8784 KB Output is correct
47 Correct 46 ms 12636 KB Output is correct
48 Correct 47 ms 12636 KB Output is correct
49 Correct 41 ms 9032 KB Output is correct
50 Correct 29 ms 9048 KB Output is correct
51 Correct 24 ms 10076 KB Output is correct
52 Correct 22 ms 10108 KB Output is correct
53 Correct 5 ms 1116 KB Output is correct
54 Correct 31 ms 8948 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 1 ms 348 KB Output is correct
5 Correct 3 ms 344 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 0 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 10 ms 348 KB Output is correct
14 Correct 15 ms 348 KB Output is correct
15 Correct 12 ms 348 KB Output is correct
16 Correct 31 ms 9556 KB Output is correct
17 Correct 65 ms 16376 KB Output is correct
18 Correct 150 ms 37316 KB Output is correct
19 Correct 32 ms 9808 KB Output is correct
20 Correct 37 ms 10076 KB Output is correct
21 Correct 32 ms 9808 KB Output is correct
22 Correct 58 ms 17100 KB Output is correct
23 Correct 54 ms 17444 KB Output is correct
24 Correct 61 ms 17360 KB Output is correct
25 Correct 48 ms 17480 KB Output is correct
26 Correct 54 ms 17228 KB Output is correct
27 Correct 61 ms 20156 KB Output is correct
28 Correct 59 ms 21080 KB Output is correct
29 Correct 62 ms 19144 KB Output is correct
30 Correct 50 ms 14580 KB Output is correct
31 Correct 43 ms 14812 KB Output is correct
32 Correct 42 ms 14540 KB Output is correct
33 Correct 41 ms 14796 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 6 ms 348 KB Output is correct
5 Correct 11 ms 492 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 604 KB Output is correct
9 Correct 50 ms 3036 KB Output is correct
10 Correct 179 ms 17796 KB Output is correct
11 Correct 4 ms 348 KB Output is correct
12 Correct 22 ms 492 KB Output is correct
13 Correct 95 ms 47820 KB Output is correct
14 Correct 108 ms 62924 KB Output is correct
15 Runtime error 4223 ms 1048576 KB Execution killed with signal 9
16 Halted 0 ms 0 KB -