oj.uz

Submission #884844

# Submission time Handle Problem Language Result Execution time Memory
884844 2023-12-08T14:39:15 Z Ahmed57 Jail (JOI22_jail) C++17
61 / 100
 167 ms 31432 KB 
#include <bits/stdc++.h>
 
using namespace std;
int pr[120001],dep[120001],vis[120001],deg[1001];
vector<int> adj[120001],tree[1001];
void dfs(int i,int ppp){
    pr[i] = ppp;
    dep[i] = dep[ppp]+1;
    for(auto j:adj[i]){
        if(j==ppp)continue;
        dfs(j,i);
    }
}
signed main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    //freopen("input.txt","r",stdin);
    //freopen("out.txt","w",stdout);
    int t;cin>>t;
    z:while(t--){
    int n;cin>>n;
    for(int i = 1;i<=n;i++){
        adj[i].clear();
        pr[i] = 0 , dep[i] = 0;
        vis[i] = 0;
    }
    for(int i = 1;i<n;i++){
        int a,b;cin>>a>>b;
        adj[a].push_back(b);
        adj[b].push_back(a);
    }
    dfs(1,0);
    int q;cin>>q;
    vector<pair<int,int>> qu;
    for(int i = 1;i<=q;i++){
        int a,b;
        cin>>a>>b;
        qu.push_back({a,b});
    }
    for(int i = 1;i<=q;i++){
        deg[i] = 0 ;tree[i].clear();
    }
    for(int i = 0;i<qu.size();i++){
        int x = qu[i].first , y = qu[i].second;
        while(x!=y){
            if(dep[x]<dep[y])swap(x,y);
            vis[x] = i+1;
            x = pr[x];
        }
        vis[x] = i+1;
        for(int j = 0;j<qu.size();j++){
            if(i==j)continue;
            if(vis[qu[j].first]==i+1&&vis[qu[j].second]==i+1){
                cout<<"No\n";
                goto z;
            }
            if(vis[qu[j].first]==i+1){
                tree[i+1].push_back(j+1);
                deg[j+1]++;
            }else if(vis[qu[j].second]==i+1){
                tree[j+1].push_back(i+1);
                deg[i+1]++;
            }
        }
    }
    int cnt = 0;queue<int> qe;
    for(int i = 1;i<=q;i++){
        if(deg[i]==0){
            qe.push(i);
        }
    }
    while(!qe.empty()){
        int x = qe.front();qe.pop();
        cnt++;
        for(auto j:tree[x]){
            deg[j]--;
            if(deg[j]==0){
                qe.push(j);
            }
        }
    }
    if(cnt==q)cout<<"Yes\n";
    else cout<<"No\n";
}
    return 0;
}

Compilation message

jail.cpp: In function 'int main()':
jail.cpp:42:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for(int i = 0;i<qu.size();i++){
      |                   ~^~~~~~~~~~
jail.cpp:50:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         for(int j = 0;j<qu.size();j++){
      |                       ~^~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3324 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 1 ms 3164 KB Output is correct
4 Correct 6 ms 3164 KB Output is correct
5 Correct 13 ms 4080 KB Output is correct
6 Correct 2 ms 3164 KB Output is correct
7 Correct 2 ms 3164 KB Output is correct
8 Correct 2 ms 3416 KB Output is correct
9 Correct 34 ms 6300 KB Output is correct
10 Correct 165 ms 16724 KB Output is correct
11 Correct 4 ms 3416 KB Output is correct
12 Correct 17 ms 4084 KB Output is correct
13 Runtime error 112 ms 31432 KB Execution killed with signal 11
14 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 2 ms 3164 KB Output is correct
4 Correct 3 ms 3164 KB Output is correct
5 Correct 2 ms 3160 KB Output is correct
6 Correct 2 ms 3368 KB Output is correct
7 Correct 2 ms 3164 KB Output is correct
8 Correct 2 ms 3164 KB Output is correct
9 Correct 2 ms 3164 KB Output is correct
10 Correct 2 ms 3164 KB Output is correct
11 Correct 2 ms 3164 KB Output is correct
12 Correct 2 ms 3316 KB Output is correct
13 Correct 2 ms 3164 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 2 ms 3164 KB Output is correct
4 Correct 3 ms 3164 KB Output is correct
5 Correct 2 ms 3160 KB Output is correct
6 Correct 2 ms 3368 KB Output is correct
7 Correct 2 ms 3164 KB Output is correct
8 Correct 2 ms 3164 KB Output is correct
9 Correct 2 ms 3164 KB Output is correct
10 Correct 2 ms 3164 KB Output is correct
11 Correct 2 ms 3164 KB Output is correct
12 Correct 2 ms 3316 KB Output is correct
13 Correct 2 ms 3164 KB Output is correct
14 Correct 1 ms 3160 KB Output is correct
15 Correct 1 ms 3164 KB Output is correct
16 Correct 2 ms 3164 KB Output is correct
17 Correct 2 ms 3164 KB Output is correct
18 Correct 2 ms 3316 KB Output is correct
19 Correct 1 ms 3164 KB Output is correct
20 Correct 2 ms 3164 KB Output is correct
21 Correct 2 ms 3164 KB Output is correct
22 Correct 2 ms 3368 KB Output is correct
23 Correct 1 ms 3164 KB Output is correct
24 Correct 1 ms 3164 KB Output is correct
25 Correct 2 ms 3368 KB Output is correct
26 Correct 1 ms 3164 KB Output is correct
27 Correct 2 ms 3164 KB Output is correct
28 Correct 2 ms 3320 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 2 ms 3164 KB Output is correct
4 Correct 3 ms 3164 KB Output is correct
5 Correct 2 ms 3160 KB Output is correct
6 Correct 2 ms 3368 KB Output is correct
7 Correct 2 ms 3164 KB Output is correct
8 Correct 2 ms 3164 KB Output is correct
9 Correct 2 ms 3164 KB Output is correct
10 Correct 2 ms 3164 KB Output is correct
11 Correct 2 ms 3164 KB Output is correct
12 Correct 2 ms 3316 KB Output is correct
13 Correct 2 ms 3164 KB Output is correct
14 Correct 1 ms 3160 KB Output is correct
15 Correct 1 ms 3164 KB Output is correct
16 Correct 2 ms 3164 KB Output is correct
17 Correct 2 ms 3164 KB Output is correct
18 Correct 2 ms 3316 KB Output is correct
19 Correct 1 ms 3164 KB Output is correct
20 Correct 2 ms 3164 KB Output is correct
21 Correct 2 ms 3164 KB Output is correct
22 Correct 2 ms 3368 KB Output is correct
23 Correct 1 ms 3164 KB Output is correct
24 Correct 1 ms 3164 KB Output is correct
25 Correct 2 ms 3368 KB Output is correct
26 Correct 1 ms 3164 KB Output is correct
27 Correct 2 ms 3164 KB Output is correct
28 Correct 2 ms 3320 KB Output is correct
29 Correct 2 ms 3420 KB Output is correct
30 Correct 2 ms 3164 KB Output is correct
31 Correct 2 ms 3164 KB Output is correct
32 Correct 2 ms 3164 KB Output is correct
33 Correct 2 ms 3160 KB Output is correct
34 Correct 2 ms 3160 KB Output is correct
35 Correct 2 ms 3416 KB Output is correct
36 Correct 2 ms 3164 KB Output is correct
37 Correct 2 ms 3164 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3160 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 2 ms 3164 KB Output is correct
4 Correct 3 ms 3164 KB Output is correct
5 Correct 2 ms 3160 KB Output is correct
6 Correct 2 ms 3368 KB Output is correct
7 Correct 2 ms 3164 KB Output is correct
8 Correct 2 ms 3164 KB Output is correct
9 Correct 2 ms 3164 KB Output is correct
10 Correct 2 ms 3164 KB Output is correct
11 Correct 2 ms 3164 KB Output is correct
12 Correct 2 ms 3316 KB Output is correct
13 Correct 2 ms 3164 KB Output is correct
14 Correct 1 ms 3160 KB Output is correct
15 Correct 1 ms 3164 KB Output is correct
16 Correct 2 ms 3164 KB Output is correct
17 Correct 2 ms 3164 KB Output is correct
18 Correct 2 ms 3316 KB Output is correct
19 Correct 1 ms 3164 KB Output is correct
20 Correct 2 ms 3164 KB Output is correct
21 Correct 2 ms 3164 KB Output is correct
22 Correct 2 ms 3368 KB Output is correct
23 Correct 1 ms 3164 KB Output is correct
24 Correct 1 ms 3164 KB Output is correct
25 Correct 2 ms 3368 KB Output is correct
26 Correct 1 ms 3164 KB Output is correct
27 Correct 2 ms 3164 KB Output is correct
28 Correct 2 ms 3320 KB Output is correct
29 Correct 2 ms 3420 KB Output is correct
30 Correct 2 ms 3164 KB Output is correct
31 Correct 2 ms 3164 KB Output is correct
32 Correct 2 ms 3164 KB Output is correct
33 Correct 2 ms 3160 KB Output is correct
34 Correct 2 ms 3160 KB Output is correct
35 Correct 2 ms 3416 KB Output is correct
36 Correct 2 ms 3164 KB Output is correct
37 Correct 2 ms 3164 KB Output is correct
38 Correct 34 ms 6428 KB Output is correct
39 Correct 167 ms 16676 KB Output is correct
40 Correct 21 ms 4780 KB Output is correct
41 Correct 24 ms 4596 KB Output is correct
42 Correct 19 ms 4948 KB Output is correct
43 Correct 17 ms 4688 KB Output is correct
44 Correct 10 ms 3676 KB Output is correct
45 Correct 38 ms 9720 KB Output is correct
46 Correct 30 ms 9916 KB Output is correct
47 Correct 50 ms 12696 KB Output is correct
48 Correct 51 ms 12636 KB Output is correct
49 Correct 28 ms 9808 KB Output is correct
50 Correct 32 ms 10040 KB Output is correct
51 Correct 28 ms 10832 KB Output is correct
52 Correct 35 ms 10744 KB Output is correct
53 Correct 12 ms 3932 KB Output is correct
54 Correct 31 ms 9772 KB Output is correct

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3164 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 1 ms 3164 KB Output is correct
4 Correct 1 ms 3164 KB Output is correct
5 Correct 4 ms 3316 KB Output is correct
6 Correct 1 ms 3316 KB Output is correct
7 Correct 1 ms 3168 KB Output is correct
8 Correct 1 ms 3164 KB Output is correct
9 Correct 2 ms 3416 KB Output is correct
10 Correct 1 ms 3164 KB Output is correct
11 Correct 1 ms 3164 KB Output is correct
12 Correct 2 ms 3164 KB Output is correct
13 Correct 11 ms 3676 KB Output is correct
14 Correct 18 ms 4176 KB Output is correct
15 Correct 15 ms 3928 KB Output is correct
16 Runtime error 60 ms 19028 KB Execution killed with signal 11
17 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 3324 KB Output is correct
2 Correct 1 ms 3164 KB Output is correct
3 Correct 1 ms 3164 KB Output is correct
4 Correct 6 ms 3164 KB Output is correct
5 Correct 13 ms 4080 KB Output is correct
6 Correct 2 ms 3164 KB Output is correct
7 Correct 2 ms 3164 KB Output is correct
8 Correct 2 ms 3416 KB Output is correct
9 Correct 34 ms 6300 KB Output is correct
10 Correct 165 ms 16724 KB Output is correct
11 Correct 4 ms 3416 KB Output is correct
12 Correct 17 ms 4084 KB Output is correct
13 Runtime error 112 ms 31432 KB Execution killed with signal 11
14 Halted 0 ms 0 KB -