oj.uz

Submission #503663

# Submission time Handle Problem Language Result Execution time Memory
503663 2022-01-08T14:47:41 Z jk410 None (JOI16_ho_t3) C++17
100 / 100
 153 ms 15968 KB 
#include <bits/stdc++.h>
using namespace std;
const int INF=1e9;
struct nosun{
    int from,to;
};
struct edge{
    int v,idx;
};
int N,M,Q,Ans;
nosun Nosun[200001];
vector<edge> Edge[100001];
int Dist[100001];
queue<int> Queue;
int Cnt[100001];
bool Visited[200001];
bool f(int idx){
    return (Dist[Nosun[idx].from]==Dist[Nosun[idx].to]);
}
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>N>>M>>Q;
    for (int i=1; i<=N; i++)
        Dist[i]=INF;
    for (int i=1; i<=M; i++){
        cin>>Nosun[i].from>>Nosun[i].to;
        Edge[Nosun[i].from].push_back({Nosun[i].to,i});
        Edge[Nosun[i].to].push_back({Nosun[i].from,i});
    }
    Dist[1]=0;
    Queue.push(1);
    while (!Queue.empty()){
        int t=Queue.front();
        Queue.pop();
        for (edge i:Edge[t]){
            if (Dist[i.v]>Dist[t]+1){
                Dist[i.v]=Dist[t]+1;
                Queue.push(i.v);
            }
        }
    }
    for (int i=1; i<=M; i++){
        if (f(i))
            continue;
        if (Dist[Nosun[i].from]>Dist[Nosun[i].to])
            swap(Nosun[i].from,Nosun[i].to);
        Cnt[Nosun[i].to]++;
    }
    while (Q--){
        int r;
        cin>>r;
        if (!f(r)&&!Visited[r])
            Queue.push(r);
        while (!Queue.empty()){
            int t=Queue.front();
            Queue.pop();
            Visited[t]=true;
            if (--Cnt[Nosun[t].to]==0){
                Ans++;
                for (edge i:Edge[Nosun[t].to]){
                    if (f(i.idx)||Visited[i.idx])
                        continue;
                    Queue.push(i.idx);
                }
            }
        }
        cout<<Ans<<"\n";
    }
    return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2636 KB Output is correct
2 Correct 1 ms 2680 KB Output is correct
3 Correct 2 ms 2820 KB Output is correct
4 Correct 2 ms 2636 KB Output is correct
5 Correct 2 ms 2764 KB Output is correct
6 Correct 1 ms 2636 KB Output is correct
7 Correct 3 ms 2636 KB Output is correct
8 Correct 1 ms 2636 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2636 KB Output is correct
2 Correct 1 ms 2680 KB Output is correct
3 Correct 2 ms 2820 KB Output is correct
4 Correct 2 ms 2636 KB Output is correct
5 Correct 2 ms 2764 KB Output is correct
6 Correct 1 ms 2636 KB Output is correct
7 Correct 3 ms 2636 KB Output is correct
8 Correct 1 ms 2636 KB Output is correct
9 Correct 83 ms 11608 KB Output is correct
10 Correct 80 ms 11580 KB Output is correct
11 Correct 82 ms 11064 KB Output is correct
12 Correct 71 ms 11288 KB Output is correct
13 Correct 79 ms 11468 KB Output is correct
14 Correct 82 ms 11236 KB Output is correct
15 Correct 44 ms 8388 KB Output is correct
16 Correct 33 ms 7576 KB Output is correct

Subtask #3
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 11624 KB Output is correct
2 Correct 93 ms 11636 KB Output is correct
3 Correct 55 ms 9788 KB Output is correct
4 Correct 69 ms 11332 KB Output is correct
5 Correct 69 ms 11336 KB Output is correct
6 Correct 70 ms 11332 KB Output is correct
7 Correct 38 ms 7612 KB Output is correct
8 Correct 41 ms 7496 KB Output is correct
9 Correct 24 ms 7624 KB Output is correct
10 Correct 24 ms 8172 KB Output is correct
11 Correct 79 ms 11660 KB Output is correct
12 Correct 87 ms 11544 KB Output is correct
13 Correct 82 ms 11212 KB Output is correct
14 Correct 90 ms 11832 KB Output is correct
15 Correct 88 ms 11404 KB Output is correct
16 Correct 78 ms 11160 KB Output is correct
17 Correct 106 ms 11260 KB Output is correct
18 Correct 72 ms 8684 KB Output is correct
19 Correct 145 ms 13028 KB Output is correct
20 Correct 114 ms 11204 KB Output is correct
21 Correct 61 ms 8388 KB Output is correct
22 Correct 62 ms 8292 KB Output is correct

Subtask #4
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2636 KB Output is correct
2 Correct 1 ms 2680 KB Output is correct
3 Correct 2 ms 2820 KB Output is correct
4 Correct 2 ms 2636 KB Output is correct
5 Correct 2 ms 2764 KB Output is correct
6 Correct 1 ms 2636 KB Output is correct
7 Correct 3 ms 2636 KB Output is correct
8 Correct 1 ms 2636 KB Output is correct
9 Correct 83 ms 11608 KB Output is correct
10 Correct 80 ms 11580 KB Output is correct
11 Correct 82 ms 11064 KB Output is correct
12 Correct 71 ms 11288 KB Output is correct
13 Correct 79 ms 11468 KB Output is correct
14 Correct 82 ms 11236 KB Output is correct
15 Correct 44 ms 8388 KB Output is correct
16 Correct 33 ms 7576 KB Output is correct
17 Correct 78 ms 11624 KB Output is correct
18 Correct 93 ms 11636 KB Output is correct
19 Correct 55 ms 9788 KB Output is correct
20 Correct 69 ms 11332 KB Output is correct
21 Correct 69 ms 11336 KB Output is correct
22 Correct 70 ms 11332 KB Output is correct
23 Correct 38 ms 7612 KB Output is correct
24 Correct 41 ms 7496 KB Output is correct
25 Correct 24 ms 7624 KB Output is correct
26 Correct 24 ms 8172 KB Output is correct
27 Correct 79 ms 11660 KB Output is correct
28 Correct 87 ms 11544 KB Output is correct
29 Correct 82 ms 11212 KB Output is correct
30 Correct 90 ms 11832 KB Output is correct
31 Correct 88 ms 11404 KB Output is correct
32 Correct 78 ms 11160 KB Output is correct
33 Correct 106 ms 11260 KB Output is correct
34 Correct 72 ms 8684 KB Output is correct
35 Correct 145 ms 13028 KB Output is correct
36 Correct 114 ms 11204 KB Output is correct
37 Correct 61 ms 8388 KB Output is correct
38 Correct 62 ms 8292 KB Output is correct
39 Correct 153 ms 13348 KB Output is correct
40 Correct 137 ms 13380 KB Output is correct
41 Correct 105 ms 10448 KB Output is correct
42 Correct 132 ms 15868 KB Output is correct
43 Correct 125 ms 15944 KB Output is correct
44 Correct 133 ms 15968 KB Output is correct
45 Correct 140 ms 15940 KB Output is correct
46 Correct 69 ms 10292 KB Output is correct
47 Correct 61 ms 9780 KB Output is correct
48 Correct 58 ms 9764 KB Output is correct
49 Correct 56 ms 9372 KB Output is correct
50 Correct 59 ms 9400 KB Output is correct
51 Correct 54 ms 9900 KB Output is correct
52 Correct 50 ms 9908 KB Output is correct
53 Correct 45 ms 9244 KB Output is correct
54 Correct 59 ms 9384 KB Output is correct