oj.uz

Submission #978890

# Submission time Handle Problem Language Result Execution time Memory
978890 2024-05-10T00:35:05 Z irmuun Birthday gift (IZhO18_treearray) C++17
30 / 100
 4000 ms 7204 KB 
#include<bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

const int N=2e5+5;

int n,m,q,a[N],par[N][20],dep[N];
vector<int>adj[N];
void dfs(int x,int p){
    par[x][0]=p;
    for(int y:adj[x]){
        if(y!=p){
            dep[y]=dep[x]+1;
            dfs(y,x);
        }
    }
}
int up(int x,int d){
    for(int i=19;i>=0;i--){
        if(d&(1<<i)){
            x=par[x][i];
        }
    }
    return x;
}
int lca(int x,int y){
    if(dep[x]<dep[y]) swap(x,y);
    x=up(x,dep[x]-dep[y]);
    for(int i=19;i>=0;i--){
        if(par[x][i]!=par[y][i]){
            x=par[x][i];
            y=par[y][i];
        }
    }
    if(x!=y) x=par[x][0];
    return x;
}

void ask(int l,int r,int u){
    for(int x=l;x<=r;x++){
        int cur=a[x];
        for(int y=x;y<=r;y++){
            cur=lca(cur,a[y]);
            if(cur==u){
                cout<<x<<' '<<y<<"\n";
                return;
            }
            if(dep[cur]<dep[u]) break;
        }
    }
    cout<<"-1 -1\n";
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin>>n>>m>>q;
    for(int i=1;i<n;i++){
        int u,v;
        cin>>u>>v;
        adj[u].pb(v);
        adj[v].pb(u);
    }
    for(int i=1;i<=m;i++){
        cin>>a[i];
    }
    dep[1]=0;
    dfs(1,1);
    for(int j=1;j<20;j++){
        for(int i=1;i<=n;i++){
            par[i][j]=par[par[i][j-1]][j-1];
        }
    }
    while(q--){
        int t;
        cin>>t;
        if(t==1){
            int pos,v;
            cin>>pos>>v;
            a[pos]=v;
        }
        else{
            int l,r,u;
            cin>>l>>r>>u;
            ask(l,r,u);
        }
    }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB n=5
2 Correct 2 ms 6748 KB n=100
3 Correct 2 ms 6748 KB n=100
4 Correct 2 ms 6748 KB n=100
5 Correct 2 ms 6748 KB n=100
6 Correct 3 ms 6744 KB n=100
7 Correct 2 ms 7000 KB n=100
8 Correct 2 ms 6748 KB n=100
9 Correct 2 ms 6748 KB n=100
10 Correct 2 ms 6748 KB n=100
11 Correct 3 ms 6744 KB n=100
12 Correct 2 ms 6904 KB n=100
13 Correct 2 ms 6744 KB n=100
14 Correct 2 ms 6748 KB n=100
15 Correct 1 ms 6748 KB n=100
16 Correct 2 ms 6748 KB n=100
17 Correct 2 ms 6744 KB n=100
18 Correct 2 ms 6744 KB n=100
19 Correct 2 ms 6744 KB n=100
20 Correct 2 ms 6748 KB n=100
21 Correct 2 ms 6748 KB n=100
22 Correct 2 ms 6748 KB n=100
23 Correct 11 ms 6800 KB n=100
24 Correct 12 ms 6748 KB n=100
25 Correct 4 ms 6748 KB n=100
26 Correct 2 ms 6744 KB n=12
27 Correct 2 ms 6748 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB n=5
2 Correct 2 ms 6748 KB n=100
3 Correct 2 ms 6748 KB n=100
4 Correct 2 ms 6748 KB n=100
5 Correct 2 ms 6748 KB n=100
6 Correct 3 ms 6744 KB n=100
7 Correct 2 ms 7000 KB n=100
8 Correct 2 ms 6748 KB n=100
9 Correct 2 ms 6748 KB n=100
10 Correct 2 ms 6748 KB n=100
11 Correct 3 ms 6744 KB n=100
12 Correct 2 ms 6904 KB n=100
13 Correct 2 ms 6744 KB n=100
14 Correct 2 ms 6748 KB n=100
15 Correct 1 ms 6748 KB n=100
16 Correct 2 ms 6748 KB n=100
17 Correct 2 ms 6744 KB n=100
18 Correct 2 ms 6744 KB n=100
19 Correct 2 ms 6744 KB n=100
20 Correct 2 ms 6748 KB n=100
21 Correct 2 ms 6748 KB n=100
22 Correct 2 ms 6748 KB n=100
23 Correct 11 ms 6800 KB n=100
24 Correct 12 ms 6748 KB n=100
25 Correct 4 ms 6748 KB n=100
26 Correct 2 ms 6744 KB n=12
27 Correct 2 ms 6748 KB n=100
28 Correct 2 ms 6748 KB n=500
29 Correct 15 ms 6748 KB n=500
30 Correct 16 ms 6748 KB n=500
31 Correct 17 ms 6848 KB n=500
32 Correct 2 ms 6748 KB n=500
33 Correct 15 ms 6756 KB n=500
34 Correct 2 ms 6748 KB n=500
35 Correct 13 ms 6748 KB n=500
36 Correct 28 ms 6744 KB n=500
37 Correct 28 ms 6744 KB n=500
38 Correct 27 ms 6812 KB n=500
39 Correct 14 ms 6744 KB n=500
40 Correct 14 ms 6748 KB n=500
41 Correct 14 ms 6748 KB n=500
42 Correct 16 ms 6828 KB n=500
43 Correct 18 ms 6832 KB n=500
44 Correct 16 ms 6748 KB n=500
45 Correct 2 ms 6748 KB n=500
46 Correct 18 ms 6748 KB n=500
47 Correct 13 ms 6808 KB n=500
48 Correct 2 ms 6800 KB n=500
49 Correct 10 ms 6748 KB n=500
50 Correct 8 ms 6748 KB n=500
51 Correct 17 ms 6744 KB n=500
52 Correct 20 ms 6744 KB n=500
53 Correct 16 ms 6748 KB n=500
54 Correct 276 ms 6832 KB n=500
55 Correct 5 ms 6944 KB n=278
56 Correct 2632 ms 6832 KB n=500
57 Correct 2742 ms 6836 KB n=500
58 Correct 16 ms 6744 KB n=500

Subtask #3
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB n=5
2 Correct 2 ms 6748 KB n=100
3 Correct 2 ms 6748 KB n=100
4 Correct 2 ms 6748 KB n=100
5 Correct 2 ms 6748 KB n=100
6 Correct 3 ms 6744 KB n=100
7 Correct 2 ms 7000 KB n=100
8 Correct 2 ms 6748 KB n=100
9 Correct 2 ms 6748 KB n=100
10 Correct 2 ms 6748 KB n=100
11 Correct 3 ms 6744 KB n=100
12 Correct 2 ms 6904 KB n=100
13 Correct 2 ms 6744 KB n=100
14 Correct 2 ms 6748 KB n=100
15 Correct 1 ms 6748 KB n=100
16 Correct 2 ms 6748 KB n=100
17 Correct 2 ms 6744 KB n=100
18 Correct 2 ms 6744 KB n=100
19 Correct 2 ms 6744 KB n=100
20 Correct 2 ms 6748 KB n=100
21 Correct 2 ms 6748 KB n=100
22 Correct 2 ms 6748 KB n=100
23 Correct 11 ms 6800 KB n=100
24 Correct 12 ms 6748 KB n=100
25 Correct 4 ms 6748 KB n=100
26 Correct 2 ms 6744 KB n=12
27 Correct 2 ms 6748 KB n=100
28 Correct 2 ms 6748 KB n=500
29 Correct 15 ms 6748 KB n=500
30 Correct 16 ms 6748 KB n=500
31 Correct 17 ms 6848 KB n=500
32 Correct 2 ms 6748 KB n=500
33 Correct 15 ms 6756 KB n=500
34 Correct 2 ms 6748 KB n=500
35 Correct 13 ms 6748 KB n=500
36 Correct 28 ms 6744 KB n=500
37 Correct 28 ms 6744 KB n=500
38 Correct 27 ms 6812 KB n=500
39 Correct 14 ms 6744 KB n=500
40 Correct 14 ms 6748 KB n=500
41 Correct 14 ms 6748 KB n=500
42 Correct 16 ms 6828 KB n=500
43 Correct 18 ms 6832 KB n=500
44 Correct 16 ms 6748 KB n=500
45 Correct 2 ms 6748 KB n=500
46 Correct 18 ms 6748 KB n=500
47 Correct 13 ms 6808 KB n=500
48 Correct 2 ms 6800 KB n=500
49 Correct 10 ms 6748 KB n=500
50 Correct 8 ms 6748 KB n=500
51 Correct 17 ms 6744 KB n=500
52 Correct 20 ms 6744 KB n=500
53 Correct 16 ms 6748 KB n=500
54 Correct 276 ms 6832 KB n=500
55 Correct 5 ms 6944 KB n=278
56 Correct 2632 ms 6832 KB n=500
57 Correct 2742 ms 6836 KB n=500
58 Correct 16 ms 6744 KB n=500
59 Correct 3 ms 6748 KB n=2000
60 Correct 333 ms 7004 KB n=2000
61 Correct 266 ms 7188 KB n=2000
62 Correct 315 ms 6992 KB n=2000
63 Correct 4 ms 6748 KB n=2000
64 Correct 303 ms 6748 KB n=2000
65 Correct 3 ms 6748 KB n=2000
66 Correct 377 ms 6992 KB n=2000
67 Correct 6 ms 6744 KB n=2000
68 Correct 301 ms 6960 KB n=2000
69 Correct 404 ms 7164 KB n=2000
70 Correct 397 ms 6912 KB n=2000
71 Correct 397 ms 6808 KB n=2000
72 Correct 204 ms 6744 KB n=2000
73 Correct 214 ms 6996 KB n=2000
74 Correct 2 ms 6748 KB n=1844
75 Correct 204 ms 6904 KB n=2000
76 Correct 235 ms 6748 KB n=2000
77 Correct 235 ms 6908 KB n=2000
78 Correct 252 ms 6900 KB n=2000
79 Correct 4 ms 7004 KB n=2000
80 Correct 228 ms 7016 KB n=2000
81 Correct 247 ms 6748 KB n=2000
82 Correct 3 ms 6748 KB n=2000
83 Correct 224 ms 7000 KB n=2000
84 Correct 99 ms 6932 KB n=2000
85 Correct 629 ms 7204 KB n=2000
86 Correct 269 ms 6748 KB n=2000
87 Correct 101 ms 6748 KB n=2000
88 Execution timed out 4040 ms 7004 KB Time limit exceeded
89 Halted 0 ms 0 KB -

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB n=5
2 Correct 2 ms 6748 KB n=100
3 Correct 2 ms 6748 KB n=100
4 Correct 2 ms 6748 KB n=100
5 Correct 2 ms 6748 KB n=100
6 Correct 3 ms 6744 KB n=100
7 Correct 2 ms 7000 KB n=100
8 Correct 2 ms 6748 KB n=100
9 Correct 2 ms 6748 KB n=100
10 Correct 2 ms 6748 KB n=100
11 Correct 3 ms 6744 KB n=100
12 Correct 2 ms 6904 KB n=100
13 Correct 2 ms 6744 KB n=100
14 Correct 2 ms 6748 KB n=100
15 Correct 1 ms 6748 KB n=100
16 Correct 2 ms 6748 KB n=100
17 Correct 2 ms 6744 KB n=100
18 Correct 2 ms 6744 KB n=100
19 Correct 2 ms 6744 KB n=100
20 Correct 2 ms 6748 KB n=100
21 Correct 2 ms 6748 KB n=100
22 Correct 2 ms 6748 KB n=100
23 Correct 11 ms 6800 KB n=100
24 Correct 12 ms 6748 KB n=100
25 Correct 4 ms 6748 KB n=100
26 Correct 2 ms 6744 KB n=12
27 Correct 2 ms 6748 KB n=100
28 Correct 2 ms 6748 KB n=500
29 Correct 15 ms 6748 KB n=500
30 Correct 16 ms 6748 KB n=500
31 Correct 17 ms 6848 KB n=500
32 Correct 2 ms 6748 KB n=500
33 Correct 15 ms 6756 KB n=500
34 Correct 2 ms 6748 KB n=500
35 Correct 13 ms 6748 KB n=500
36 Correct 28 ms 6744 KB n=500
37 Correct 28 ms 6744 KB n=500
38 Correct 27 ms 6812 KB n=500
39 Correct 14 ms 6744 KB n=500
40 Correct 14 ms 6748 KB n=500
41 Correct 14 ms 6748 KB n=500
42 Correct 16 ms 6828 KB n=500
43 Correct 18 ms 6832 KB n=500
44 Correct 16 ms 6748 KB n=500
45 Correct 2 ms 6748 KB n=500
46 Correct 18 ms 6748 KB n=500
47 Correct 13 ms 6808 KB n=500
48 Correct 2 ms 6800 KB n=500
49 Correct 10 ms 6748 KB n=500
50 Correct 8 ms 6748 KB n=500
51 Correct 17 ms 6744 KB n=500
52 Correct 20 ms 6744 KB n=500
53 Correct 16 ms 6748 KB n=500
54 Correct 276 ms 6832 KB n=500
55 Correct 5 ms 6944 KB n=278
56 Correct 2632 ms 6832 KB n=500
57 Correct 2742 ms 6836 KB n=500
58 Correct 16 ms 6744 KB n=500
59 Correct 3 ms 6748 KB n=2000
60 Correct 333 ms 7004 KB n=2000
61 Correct 266 ms 7188 KB n=2000
62 Correct 315 ms 6992 KB n=2000
63 Correct 4 ms 6748 KB n=2000
64 Correct 303 ms 6748 KB n=2000
65 Correct 3 ms 6748 KB n=2000
66 Correct 377 ms 6992 KB n=2000
67 Correct 6 ms 6744 KB n=2000
68 Correct 301 ms 6960 KB n=2000
69 Correct 404 ms 7164 KB n=2000
70 Correct 397 ms 6912 KB n=2000
71 Correct 397 ms 6808 KB n=2000
72 Correct 204 ms 6744 KB n=2000
73 Correct 214 ms 6996 KB n=2000
74 Correct 2 ms 6748 KB n=1844
75 Correct 204 ms 6904 KB n=2000
76 Correct 235 ms 6748 KB n=2000
77 Correct 235 ms 6908 KB n=2000
78 Correct 252 ms 6900 KB n=2000
79 Correct 4 ms 7004 KB n=2000
80 Correct 228 ms 7016 KB n=2000
81 Correct 247 ms 6748 KB n=2000
82 Correct 3 ms 6748 KB n=2000
83 Correct 224 ms 7000 KB n=2000
84 Correct 99 ms 6932 KB n=2000
85 Correct 629 ms 7204 KB n=2000
86 Correct 269 ms 6748 KB n=2000
87 Correct 101 ms 6748 KB n=2000
88 Execution timed out 4040 ms 7004 KB Time limit exceeded
89 Halted 0 ms 0 KB -