oj.uz

Submission #950074

# Submission time Handle Problem Language Result Execution time Memory
950074 2024-03-20T04:55:20 Z Abito Tourism (JOI23_tourism) C++17
10 / 100
 66 ms 1876 KB 
#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
#define int long long
#define ll long long
typedef unsigned long long ull;
using namespace std;
const int N=2005;
int n,par[N],b[N],m,q,euler[2*N],c,dis[N],f[N],lg[2*N];
vector<int> adj[N];
bool vis[N];
pair<int,int> st[20][2*N];
void dfs(int x,int p){
    par[x]=p;
    euler[++c]=x;
    f[x]=c;
    dis[x]=dis[p]+1;
    for (auto u:adj[x]){
        if (u==p) continue;
        dfs(u,x);
        euler[++c]=x;
    }
    return;
}
void build(){
    for (int i=1;i<=c;i++) st[0][i]={dis[euler[i]],euler[i]};
    for (int i=1;i<20;i++){
        for (int j=1;j+(1<<i)<=c+1;j++){
            st[i][j]=min(st[i-1][j],st[i-1][j+(1<<(i-1))]);
        }
    }return;
}
int query(int l,int r){
    if (l>r) swap(l,r);
    int i=lg[r-l+1];
    return min(st[i][l],st[i][r-(1<<i)+1]).S;
}
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    for (int i=2;i<2*N;i++) lg[i]=lg[i/2]+1;
    cin>>n>>m>>q;
    for (int i=1;i<n;i++){
        int x,y;
        cin>>x>>y;
        adj[x].pb(y);
        adj[y].pb(x);
    }
    dfs(1,0);
    build();
    for (int i=1;i<=m;i++) cin>>b[i];
    while (q--){
        int l,r;
        cin>>l>>r;
        int lca=b[l];
        for (int i=l;i<=r;i++){
            lca=query(f[lca],f[b[i]]);
        }
        //cout<<lca<<endl;
        for (int i=l;i<=r;i++){
            int x=b[i];
            while (dis[x]>=dis[lca] && !vis[x]){
                vis[x]=1;
                x=par[x];
            }
        }
        int ans=0;
        for (int i=1;i<=n;i++) ans+=vis[i],vis[i]=0;
        cout<<ans<<endl;
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory 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 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 664 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 3 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct
19 Correct 2 ms 704 KB Output is correct
20 Correct 1 ms 544 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 708 KB Output is correct
26 Correct 2 ms 608 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 608 KB Output is correct
29 Correct 1 ms 604 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory 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 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 664 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 3 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct
19 Correct 2 ms 704 KB Output is correct
20 Correct 1 ms 544 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 708 KB Output is correct
26 Correct 2 ms 608 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 608 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 15 ms 1264 KB Output is correct
31 Correct 20 ms 1232 KB Output is correct
32 Correct 30 ms 1324 KB Output is correct
33 Correct 29 ms 1436 KB Output is correct
34 Correct 38 ms 1372 KB Output is correct
35 Correct 66 ms 1368 KB Output is correct
36 Correct 64 ms 1372 KB Output is correct
37 Correct 64 ms 1320 KB Output is correct
38 Correct 28 ms 1508 KB Output is correct
39 Correct 32 ms 1372 KB Output is correct
40 Correct 28 ms 1372 KB Output is correct
41 Correct 55 ms 1524 KB Output is correct
42 Correct 53 ms 1504 KB Output is correct
43 Correct 61 ms 1500 KB Output is correct
44 Correct 27 ms 1368 KB Output is correct
45 Correct 35 ms 1876 KB Output is correct
46 Correct 28 ms 1372 KB Output is correct
47 Correct 53 ms 1372 KB Output is correct
48 Correct 54 ms 1372 KB Output is correct
49 Correct 52 ms 1372 KB Output is correct
50 Correct 25 ms 1368 KB Output is correct
51 Correct 26 ms 1460 KB Output is correct
52 Correct 30 ms 1372 KB Output is correct
53 Correct 25 ms 1372 KB Output is correct
54 Correct 24 ms 1372 KB Output is correct
55 Correct 25 ms 1372 KB Output is correct
56 Correct 15 ms 604 KB Output is correct
57 Correct 3 ms 1368 KB Output is correct
58 Correct 3 ms 1372 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 564 KB Output is correct
3 Correct 15 ms 604 KB Output is correct
4 Runtime error 1 ms 976 KB Execution killed with signal 11
5 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Runtime error 1 ms 604 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 544 KB Output is correct
3 Correct 15 ms 600 KB Output is correct
4 Runtime error 1 ms 860 KB Execution killed with signal 11
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# Verdict Execution time Memory 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 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 664 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 3 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct
19 Correct 2 ms 704 KB Output is correct
20 Correct 1 ms 544 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 708 KB Output is correct
26 Correct 2 ms 608 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 608 KB Output is correct
29 Correct 1 ms 604 KB Output is correct
30 Correct 15 ms 1264 KB Output is correct
31 Correct 20 ms 1232 KB Output is correct
32 Correct 30 ms 1324 KB Output is correct
33 Correct 29 ms 1436 KB Output is correct
34 Correct 38 ms 1372 KB Output is correct
35 Correct 66 ms 1368 KB Output is correct
36 Correct 64 ms 1372 KB Output is correct
37 Correct 64 ms 1320 KB Output is correct
38 Correct 28 ms 1508 KB Output is correct
39 Correct 32 ms 1372 KB Output is correct
40 Correct 28 ms 1372 KB Output is correct
41 Correct 55 ms 1524 KB Output is correct
42 Correct 53 ms 1504 KB Output is correct
43 Correct 61 ms 1500 KB Output is correct
44 Correct 27 ms 1368 KB Output is correct
45 Correct 35 ms 1876 KB Output is correct
46 Correct 28 ms 1372 KB Output is correct
47 Correct 53 ms 1372 KB Output is correct
48 Correct 54 ms 1372 KB Output is correct
49 Correct 52 ms 1372 KB Output is correct
50 Correct 25 ms 1368 KB Output is correct
51 Correct 26 ms 1460 KB Output is correct
52 Correct 30 ms 1372 KB Output is correct
53 Correct 25 ms 1372 KB Output is correct
54 Correct 24 ms 1372 KB Output is correct
55 Correct 25 ms 1372 KB Output is correct
56 Correct 15 ms 604 KB Output is correct
57 Correct 3 ms 1368 KB Output is correct
58 Correct 3 ms 1372 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 564 KB Output is correct
61 Correct 15 ms 604 KB Output is correct
62 Runtime error 1 ms 976 KB Execution killed with signal 11
63 Halted 0 ms 0 KB -