oj.uz

Submission #978894

# Submission time Handle Problem Language Result Execution time Memory
978894 2024-05-10T00:54:43 Z irmuun Birthday gift (IZhO18_treearray) C++17
56 / 100
 4000 ms 39016 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 i=l;i<=r;i++){
        if(a[i]==u){
            cout<<i<<' '<<i<<"\n";
            return;
        }
        if(i<r&&lca(a[i],a[i+1])==u){
            cout<<i<<' '<<i+1<<"\n";
            return;
        }
    }
    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 1 ms 6744 KB n=5
2 Correct 2 ms 6748 KB n=100
3 Correct 1 ms 6748 KB n=100
4 Correct 1 ms 7000 KB n=100
5 Correct 1 ms 6748 KB n=100
6 Correct 2 ms 6748 KB n=100
7 Correct 2 ms 6744 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 2 ms 6756 KB n=100
12 Correct 1 ms 6748 KB n=100
13 Correct 1 ms 6748 KB n=100
14 Correct 2 ms 6744 KB n=100
15 Correct 1 ms 6748 KB n=100
16 Correct 2 ms 6748 KB n=100
17 Correct 2 ms 6748 KB n=100
18 Correct 1 ms 6748 KB n=100
19 Correct 1 ms 6748 KB n=100
20 Correct 1 ms 6748 KB n=100
21 Correct 1 ms 6748 KB n=100
22 Correct 2 ms 6748 KB n=100
23 Correct 2 ms 6744 KB n=100
24 Correct 2 ms 6748 KB n=100
25 Correct 2 ms 6748 KB n=100
26 Correct 1 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 1 ms 6744 KB n=5
2 Correct 2 ms 6748 KB n=100
3 Correct 1 ms 6748 KB n=100
4 Correct 1 ms 7000 KB n=100
5 Correct 1 ms 6748 KB n=100
6 Correct 2 ms 6748 KB n=100
7 Correct 2 ms 6744 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 2 ms 6756 KB n=100
12 Correct 1 ms 6748 KB n=100
13 Correct 1 ms 6748 KB n=100
14 Correct 2 ms 6744 KB n=100
15 Correct 1 ms 6748 KB n=100
16 Correct 2 ms 6748 KB n=100
17 Correct 2 ms 6748 KB n=100
18 Correct 1 ms 6748 KB n=100
19 Correct 1 ms 6748 KB n=100
20 Correct 1 ms 6748 KB n=100
21 Correct 1 ms 6748 KB n=100
22 Correct 2 ms 6748 KB n=100
23 Correct 2 ms 6744 KB n=100
24 Correct 2 ms 6748 KB n=100
25 Correct 2 ms 6748 KB n=100
26 Correct 1 ms 6744 KB n=12
27 Correct 2 ms 6748 KB n=100
28 Correct 2 ms 6748 KB n=500
29 Correct 4 ms 6748 KB n=500
30 Correct 4 ms 6748 KB n=500
31 Correct 4 ms 6748 KB n=500
32 Correct 2 ms 6744 KB n=500
33 Correct 3 ms 6748 KB n=500
34 Correct 2 ms 6748 KB n=500
35 Correct 4 ms 6748 KB n=500
36 Correct 14 ms 6820 KB n=500
37 Correct 14 ms 6748 KB n=500
38 Correct 14 ms 6820 KB n=500
39 Correct 8 ms 6748 KB n=500
40 Correct 8 ms 6744 KB n=500
41 Correct 8 ms 6748 KB n=500
42 Correct 8 ms 6748 KB n=500
43 Correct 8 ms 6748 KB n=500
44 Correct 8 ms 6744 KB n=500
45 Correct 2 ms 6748 KB n=500
46 Correct 4 ms 6748 KB n=500
47 Correct 3 ms 6744 KB n=500
48 Correct 2 ms 6748 KB n=500
49 Correct 3 ms 6748 KB n=500
50 Correct 6 ms 6748 KB n=500
51 Correct 5 ms 6744 KB n=500
52 Correct 6 ms 6748 KB n=500
53 Correct 5 ms 6748 KB n=500
54 Correct 8 ms 6748 KB n=500
55 Correct 2 ms 6748 KB n=278
56 Correct 13 ms 6844 KB n=500
57 Correct 13 ms 6748 KB n=500
58 Correct 11 ms 6900 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6744 KB n=5
2 Correct 2 ms 6748 KB n=100
3 Correct 1 ms 6748 KB n=100
4 Correct 1 ms 7000 KB n=100
5 Correct 1 ms 6748 KB n=100
6 Correct 2 ms 6748 KB n=100
7 Correct 2 ms 6744 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 2 ms 6756 KB n=100
12 Correct 1 ms 6748 KB n=100
13 Correct 1 ms 6748 KB n=100
14 Correct 2 ms 6744 KB n=100
15 Correct 1 ms 6748 KB n=100
16 Correct 2 ms 6748 KB n=100
17 Correct 2 ms 6748 KB n=100
18 Correct 1 ms 6748 KB n=100
19 Correct 1 ms 6748 KB n=100
20 Correct 1 ms 6748 KB n=100
21 Correct 1 ms 6748 KB n=100
22 Correct 2 ms 6748 KB n=100
23 Correct 2 ms 6744 KB n=100
24 Correct 2 ms 6748 KB n=100
25 Correct 2 ms 6748 KB n=100
26 Correct 1 ms 6744 KB n=12
27 Correct 2 ms 6748 KB n=100
28 Correct 2 ms 6748 KB n=500
29 Correct 4 ms 6748 KB n=500
30 Correct 4 ms 6748 KB n=500
31 Correct 4 ms 6748 KB n=500
32 Correct 2 ms 6744 KB n=500
33 Correct 3 ms 6748 KB n=500
34 Correct 2 ms 6748 KB n=500
35 Correct 4 ms 6748 KB n=500
36 Correct 14 ms 6820 KB n=500
37 Correct 14 ms 6748 KB n=500
38 Correct 14 ms 6820 KB n=500
39 Correct 8 ms 6748 KB n=500
40 Correct 8 ms 6744 KB n=500
41 Correct 8 ms 6748 KB n=500
42 Correct 8 ms 6748 KB n=500
43 Correct 8 ms 6748 KB n=500
44 Correct 8 ms 6744 KB n=500
45 Correct 2 ms 6748 KB n=500
46 Correct 4 ms 6748 KB n=500
47 Correct 3 ms 6744 KB n=500
48 Correct 2 ms 6748 KB n=500
49 Correct 3 ms 6748 KB n=500
50 Correct 6 ms 6748 KB n=500
51 Correct 5 ms 6744 KB n=500
52 Correct 6 ms 6748 KB n=500
53 Correct 5 ms 6748 KB n=500
54 Correct 8 ms 6748 KB n=500
55 Correct 2 ms 6748 KB n=278
56 Correct 13 ms 6844 KB n=500
57 Correct 13 ms 6748 KB n=500
58 Correct 11 ms 6900 KB n=500
59 Correct 3 ms 6748 KB n=2000
60 Correct 46 ms 6748 KB n=2000
61 Correct 42 ms 6748 KB n=2000
62 Correct 28 ms 6748 KB n=2000
63 Correct 3 ms 6748 KB n=2000
64 Correct 38 ms 6912 KB n=2000
65 Correct 2 ms 6748 KB n=2000
66 Correct 49 ms 6756 KB n=2000
67 Correct 4 ms 6744 KB n=2000
68 Correct 39 ms 6748 KB n=2000
69 Correct 205 ms 6864 KB n=2000
70 Correct 206 ms 6916 KB n=2000
71 Correct 206 ms 7000 KB n=2000
72 Correct 105 ms 6744 KB n=2000
73 Correct 112 ms 6908 KB n=2000
74 Correct 2 ms 6744 KB n=1844
75 Correct 105 ms 6920 KB n=2000
76 Correct 103 ms 6748 KB n=2000
77 Correct 103 ms 6748 KB n=2000
78 Correct 108 ms 6912 KB n=2000
79 Correct 3 ms 6748 KB n=2000
80 Correct 41 ms 7004 KB n=2000
81 Correct 34 ms 6748 KB n=2000
82 Correct 2 ms 6748 KB n=2000
83 Correct 39 ms 7000 KB n=2000
84 Correct 58 ms 6744 KB n=2000
85 Correct 69 ms 6952 KB n=2000
86 Correct 72 ms 6748 KB n=2000
87 Correct 58 ms 6748 KB n=2000
88 Correct 260 ms 7248 KB n=2000
89 Correct 256 ms 7028 KB n=2000
90 Correct 129 ms 7004 KB n=2000
91 Correct 155 ms 6748 KB n=2000

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6744 KB n=5
2 Correct 2 ms 6748 KB n=100
3 Correct 1 ms 6748 KB n=100
4 Correct 1 ms 7000 KB n=100
5 Correct 1 ms 6748 KB n=100
6 Correct 2 ms 6748 KB n=100
7 Correct 2 ms 6744 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 2 ms 6756 KB n=100
12 Correct 1 ms 6748 KB n=100
13 Correct 1 ms 6748 KB n=100
14 Correct 2 ms 6744 KB n=100
15 Correct 1 ms 6748 KB n=100
16 Correct 2 ms 6748 KB n=100
17 Correct 2 ms 6748 KB n=100
18 Correct 1 ms 6748 KB n=100
19 Correct 1 ms 6748 KB n=100
20 Correct 1 ms 6748 KB n=100
21 Correct 1 ms 6748 KB n=100
22 Correct 2 ms 6748 KB n=100
23 Correct 2 ms 6744 KB n=100
24 Correct 2 ms 6748 KB n=100
25 Correct 2 ms 6748 KB n=100
26 Correct 1 ms 6744 KB n=12
27 Correct 2 ms 6748 KB n=100
28 Correct 2 ms 6748 KB n=500
29 Correct 4 ms 6748 KB n=500
30 Correct 4 ms 6748 KB n=500
31 Correct 4 ms 6748 KB n=500
32 Correct 2 ms 6744 KB n=500
33 Correct 3 ms 6748 KB n=500
34 Correct 2 ms 6748 KB n=500
35 Correct 4 ms 6748 KB n=500
36 Correct 14 ms 6820 KB n=500
37 Correct 14 ms 6748 KB n=500
38 Correct 14 ms 6820 KB n=500
39 Correct 8 ms 6748 KB n=500
40 Correct 8 ms 6744 KB n=500
41 Correct 8 ms 6748 KB n=500
42 Correct 8 ms 6748 KB n=500
43 Correct 8 ms 6748 KB n=500
44 Correct 8 ms 6744 KB n=500
45 Correct 2 ms 6748 KB n=500
46 Correct 4 ms 6748 KB n=500
47 Correct 3 ms 6744 KB n=500
48 Correct 2 ms 6748 KB n=500
49 Correct 3 ms 6748 KB n=500
50 Correct 6 ms 6748 KB n=500
51 Correct 5 ms 6744 KB n=500
52 Correct 6 ms 6748 KB n=500
53 Correct 5 ms 6748 KB n=500
54 Correct 8 ms 6748 KB n=500
55 Correct 2 ms 6748 KB n=278
56 Correct 13 ms 6844 KB n=500
57 Correct 13 ms 6748 KB n=500
58 Correct 11 ms 6900 KB n=500
59 Correct 3 ms 6748 KB n=2000
60 Correct 46 ms 6748 KB n=2000
61 Correct 42 ms 6748 KB n=2000
62 Correct 28 ms 6748 KB n=2000
63 Correct 3 ms 6748 KB n=2000
64 Correct 38 ms 6912 KB n=2000
65 Correct 2 ms 6748 KB n=2000
66 Correct 49 ms 6756 KB n=2000
67 Correct 4 ms 6744 KB n=2000
68 Correct 39 ms 6748 KB n=2000
69 Correct 205 ms 6864 KB n=2000
70 Correct 206 ms 6916 KB n=2000
71 Correct 206 ms 7000 KB n=2000
72 Correct 105 ms 6744 KB n=2000
73 Correct 112 ms 6908 KB n=2000
74 Correct 2 ms 6744 KB n=1844
75 Correct 105 ms 6920 KB n=2000
76 Correct 103 ms 6748 KB n=2000
77 Correct 103 ms 6748 KB n=2000
78 Correct 108 ms 6912 KB n=2000
79 Correct 3 ms 6748 KB n=2000
80 Correct 41 ms 7004 KB n=2000
81 Correct 34 ms 6748 KB n=2000
82 Correct 2 ms 6748 KB n=2000
83 Correct 39 ms 7000 KB n=2000
84 Correct 58 ms 6744 KB n=2000
85 Correct 69 ms 6952 KB n=2000
86 Correct 72 ms 6748 KB n=2000
87 Correct 58 ms 6748 KB n=2000
88 Correct 260 ms 7248 KB n=2000
89 Correct 256 ms 7028 KB n=2000
90 Correct 129 ms 7004 KB n=2000
91 Correct 155 ms 6748 KB n=2000
92 Correct 528 ms 37096 KB n=200000
93 Execution timed out 4040 ms 39016 KB Time limit exceeded
94 Halted 0 ms 0 KB -