oj.uz

Submission #379401

# Submission time Handle Problem Language Result Execution time Memory
379401 2021-03-18T06:37:55 Z jass921026 Birthday gift (IZhO18_treearray) C++14
100 / 100
 1080 ms 68076 KB 
#include<bits/stdc++.h>
using namespace std;
#define jizz ios_base::sync_with_stdio(false);cin.tie(NULL);
typedef long long ll;
typedef pair<int,int> pii;
#define F first
#define S second
#define ALL(x) (x).begin(),(x).end()
#define pb push_back
#define mkp make_pair
const int MAXN=2E5+10;
vector<int> G[MAXN];
set<int> st[MAXN];
int n, m, q, arr[2*MAXN], anc[20][MAXN], dep[MAXN];
void dfs(int x, int f){
    anc[0][x]=f;
    dep[x]=dep[f]+1;
    for(auto i:G[x]){
        if(i==f) continue;
        dfs(i,x);
    }
}
int lca(int u, int v){
    if(dep[u]<dep[v]) swap(u,v);
    int b=dep[u]-dep[v];
    for(int c=0;b>0;c++){
        if(b%2){
            u=anc[c][u];
        }
        b/=2;
    }
    if(u==v) return u;
    for(int i=__lg(n)+1;i>=0;i--){
        if(anc[i][u]!=anc[i][v]){
            u=anc[i][u];
            v=anc[i][v];
        }
    }
    return anc[0][u];
}
int main(){ jizz
    cin>>n>>m>>q;
    for(int i=0;i<n-1;i++){
        int a, b;
        cin>>a>>b;
        G[a].pb(b);
        G[b].pb(a);
    }
    dfs(1,0);
    for(int i=1;(1<<i)<=n;i++){
        for(int j=1;j<=n;j++){
            anc[i][j]=anc[i-1][anc[i-1][j]];
        }
    }
    for(int i=0;i<m;i++){
        cin>>arr[2*i];
    }
    for(int i=0;i<m-1;i++){
        arr[2*i+1]=lca(arr[2*i],arr[2*i+2]);
    }
    for(int i=0;i<2*m-1;i++){
        st[arr[i]].insert(i);
    }
    for(int i=0;i<q;i++){
        int type;
        cin>>type;
        if(type==1){
            int pos, v;
            cin>>pos>>v;
            int p=2*(pos-1);
            st[arr[p]].erase(p);
            arr[p]=v;
            st[arr[p]].insert(p);
            if(p>0){
                st[arr[p-1]].erase(p-1);
                int c=lca(arr[p-2],v);
                arr[p-1]=c;
                st[arr[p-1]].insert(p-1);
            }
            if(p<2*(m-1)){
                st[arr[p+1]].erase(p+1);
                int c=lca(v,arr[p+2]);
                arr[p+1]=c;
                st[arr[p+1]].insert(p+1);
            }
        } else if(type==2){
            int l, r, v;
            cin>>l>>r>>v;
            l=2*(l-1), r=2*(r-1);
            auto p=st[v].lower_bound(l);
            if(p==st[v].end()) cout<<"-1 -1\n";
            else if((*p)>r) cout<<"-1 -1\n";
            else if((*p)%2) cout<<(*p)/2+1<<" "<<(*p)/2+2<<"\n";
            else cout<<(*p)/2+1<<" "<<(*p)/2+1<<"\n";
        }
    }
    return 0;
}
/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1
*/

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB n=5
2 Correct 10 ms 14444 KB n=100
3 Correct 10 ms 14444 KB n=100
4 Correct 10 ms 14464 KB n=100
5 Correct 11 ms 14444 KB n=100
6 Correct 10 ms 14444 KB n=100
7 Correct 10 ms 14464 KB n=100
8 Correct 10 ms 14584 KB n=100
9 Correct 10 ms 14444 KB n=100
10 Correct 10 ms 14444 KB n=100
11 Correct 10 ms 14444 KB n=100
12 Correct 10 ms 14444 KB n=100
13 Correct 10 ms 14464 KB n=100
14 Correct 10 ms 14444 KB n=100
15 Correct 10 ms 14444 KB n=100
16 Correct 10 ms 14444 KB n=100
17 Correct 10 ms 14444 KB n=100
18 Correct 10 ms 14444 KB n=100
19 Correct 10 ms 14444 KB n=100
20 Correct 10 ms 14548 KB n=100
21 Correct 10 ms 14444 KB n=100
22 Correct 14 ms 14444 KB n=100
23 Correct 10 ms 14444 KB n=100
24 Correct 10 ms 14444 KB n=100
25 Correct 11 ms 14444 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 10 ms 14444 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB n=5
2 Correct 10 ms 14444 KB n=100
3 Correct 10 ms 14444 KB n=100
4 Correct 10 ms 14464 KB n=100
5 Correct 11 ms 14444 KB n=100
6 Correct 10 ms 14444 KB n=100
7 Correct 10 ms 14464 KB n=100
8 Correct 10 ms 14584 KB n=100
9 Correct 10 ms 14444 KB n=100
10 Correct 10 ms 14444 KB n=100
11 Correct 10 ms 14444 KB n=100
12 Correct 10 ms 14444 KB n=100
13 Correct 10 ms 14464 KB n=100
14 Correct 10 ms 14444 KB n=100
15 Correct 10 ms 14444 KB n=100
16 Correct 10 ms 14444 KB n=100
17 Correct 10 ms 14444 KB n=100
18 Correct 10 ms 14444 KB n=100
19 Correct 10 ms 14444 KB n=100
20 Correct 10 ms 14548 KB n=100
21 Correct 10 ms 14444 KB n=100
22 Correct 14 ms 14444 KB n=100
23 Correct 10 ms 14444 KB n=100
24 Correct 10 ms 14444 KB n=100
25 Correct 11 ms 14444 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 10 ms 14444 KB n=100
28 Correct 11 ms 14700 KB n=500
29 Correct 11 ms 14572 KB n=500
30 Correct 11 ms 14572 KB n=500
31 Correct 11 ms 14572 KB n=500
32 Correct 11 ms 14572 KB n=500
33 Correct 11 ms 14572 KB n=500
34 Correct 11 ms 14572 KB n=500
35 Correct 11 ms 14572 KB n=500
36 Correct 10 ms 14572 KB n=500
37 Correct 11 ms 14592 KB n=500
38 Correct 11 ms 14572 KB n=500
39 Correct 11 ms 14572 KB n=500
40 Correct 10 ms 14592 KB n=500
41 Correct 10 ms 14572 KB n=500
42 Correct 11 ms 14572 KB n=500
43 Correct 11 ms 14572 KB n=500
44 Correct 11 ms 14572 KB n=500
45 Correct 11 ms 14572 KB n=500
46 Correct 11 ms 14572 KB n=500
47 Correct 13 ms 14572 KB n=500
48 Correct 11 ms 14572 KB n=500
49 Correct 11 ms 14572 KB n=500
50 Correct 11 ms 14604 KB n=500
51 Correct 11 ms 14572 KB n=500
52 Correct 11 ms 14572 KB n=500
53 Correct 11 ms 14572 KB n=500
54 Correct 12 ms 14572 KB n=500
55 Correct 11 ms 14572 KB n=278
56 Correct 11 ms 14572 KB n=500
57 Correct 10 ms 14572 KB n=500
58 Correct 11 ms 14572 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB n=5
2 Correct 10 ms 14444 KB n=100
3 Correct 10 ms 14444 KB n=100
4 Correct 10 ms 14464 KB n=100
5 Correct 11 ms 14444 KB n=100
6 Correct 10 ms 14444 KB n=100
7 Correct 10 ms 14464 KB n=100
8 Correct 10 ms 14584 KB n=100
9 Correct 10 ms 14444 KB n=100
10 Correct 10 ms 14444 KB n=100
11 Correct 10 ms 14444 KB n=100
12 Correct 10 ms 14444 KB n=100
13 Correct 10 ms 14464 KB n=100
14 Correct 10 ms 14444 KB n=100
15 Correct 10 ms 14444 KB n=100
16 Correct 10 ms 14444 KB n=100
17 Correct 10 ms 14444 KB n=100
18 Correct 10 ms 14444 KB n=100
19 Correct 10 ms 14444 KB n=100
20 Correct 10 ms 14548 KB n=100
21 Correct 10 ms 14444 KB n=100
22 Correct 14 ms 14444 KB n=100
23 Correct 10 ms 14444 KB n=100
24 Correct 10 ms 14444 KB n=100
25 Correct 11 ms 14444 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 10 ms 14444 KB n=100
28 Correct 11 ms 14700 KB n=500
29 Correct 11 ms 14572 KB n=500
30 Correct 11 ms 14572 KB n=500
31 Correct 11 ms 14572 KB n=500
32 Correct 11 ms 14572 KB n=500
33 Correct 11 ms 14572 KB n=500
34 Correct 11 ms 14572 KB n=500
35 Correct 11 ms 14572 KB n=500
36 Correct 10 ms 14572 KB n=500
37 Correct 11 ms 14592 KB n=500
38 Correct 11 ms 14572 KB n=500
39 Correct 11 ms 14572 KB n=500
40 Correct 10 ms 14592 KB n=500
41 Correct 10 ms 14572 KB n=500
42 Correct 11 ms 14572 KB n=500
43 Correct 11 ms 14572 KB n=500
44 Correct 11 ms 14572 KB n=500
45 Correct 11 ms 14572 KB n=500
46 Correct 11 ms 14572 KB n=500
47 Correct 13 ms 14572 KB n=500
48 Correct 11 ms 14572 KB n=500
49 Correct 11 ms 14572 KB n=500
50 Correct 11 ms 14604 KB n=500
51 Correct 11 ms 14572 KB n=500
52 Correct 11 ms 14572 KB n=500
53 Correct 11 ms 14572 KB n=500
54 Correct 12 ms 14572 KB n=500
55 Correct 11 ms 14572 KB n=278
56 Correct 11 ms 14572 KB n=500
57 Correct 10 ms 14572 KB n=500
58 Correct 11 ms 14572 KB n=500
59 Correct 13 ms 14828 KB n=2000
60 Correct 16 ms 14956 KB n=2000
61 Correct 13 ms 14956 KB n=2000
62 Correct 13 ms 14956 KB n=2000
63 Correct 13 ms 14828 KB n=2000
64 Correct 13 ms 14956 KB n=2000
65 Correct 13 ms 14828 KB n=2000
66 Correct 15 ms 14956 KB n=2000
67 Correct 14 ms 14828 KB n=2000
68 Correct 13 ms 14956 KB n=2000
69 Correct 12 ms 14828 KB n=2000
70 Correct 13 ms 14828 KB n=2000
71 Correct 13 ms 14828 KB n=2000
72 Correct 12 ms 14828 KB n=2000
73 Correct 12 ms 14828 KB n=2000
74 Correct 13 ms 14828 KB n=1844
75 Correct 15 ms 14828 KB n=2000
76 Correct 14 ms 14828 KB n=2000
77 Correct 15 ms 14828 KB n=2000
78 Correct 15 ms 14828 KB n=2000
79 Correct 15 ms 14976 KB n=2000
80 Correct 13 ms 14956 KB n=2000
81 Correct 13 ms 14956 KB n=2000
82 Correct 14 ms 14828 KB n=2000
83 Correct 13 ms 14956 KB n=2000
84 Correct 13 ms 14828 KB n=2000
85 Correct 13 ms 14956 KB n=2000
86 Correct 13 ms 14956 KB n=2000
87 Correct 13 ms 14828 KB n=2000
88 Correct 13 ms 14956 KB n=2000
89 Correct 13 ms 14956 KB n=2000
90 Correct 13 ms 14956 KB n=2000
91 Correct 13 ms 14828 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB n=5
2 Correct 10 ms 14444 KB n=100
3 Correct 10 ms 14444 KB n=100
4 Correct 10 ms 14464 KB n=100
5 Correct 11 ms 14444 KB n=100
6 Correct 10 ms 14444 KB n=100
7 Correct 10 ms 14464 KB n=100
8 Correct 10 ms 14584 KB n=100
9 Correct 10 ms 14444 KB n=100
10 Correct 10 ms 14444 KB n=100
11 Correct 10 ms 14444 KB n=100
12 Correct 10 ms 14444 KB n=100
13 Correct 10 ms 14464 KB n=100
14 Correct 10 ms 14444 KB n=100
15 Correct 10 ms 14444 KB n=100
16 Correct 10 ms 14444 KB n=100
17 Correct 10 ms 14444 KB n=100
18 Correct 10 ms 14444 KB n=100
19 Correct 10 ms 14444 KB n=100
20 Correct 10 ms 14548 KB n=100
21 Correct 10 ms 14444 KB n=100
22 Correct 14 ms 14444 KB n=100
23 Correct 10 ms 14444 KB n=100
24 Correct 10 ms 14444 KB n=100
25 Correct 11 ms 14444 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 10 ms 14444 KB n=100
28 Correct 11 ms 14700 KB n=500
29 Correct 11 ms 14572 KB n=500
30 Correct 11 ms 14572 KB n=500
31 Correct 11 ms 14572 KB n=500
32 Correct 11 ms 14572 KB n=500
33 Correct 11 ms 14572 KB n=500
34 Correct 11 ms 14572 KB n=500
35 Correct 11 ms 14572 KB n=500
36 Correct 10 ms 14572 KB n=500
37 Correct 11 ms 14592 KB n=500
38 Correct 11 ms 14572 KB n=500
39 Correct 11 ms 14572 KB n=500
40 Correct 10 ms 14592 KB n=500
41 Correct 10 ms 14572 KB n=500
42 Correct 11 ms 14572 KB n=500
43 Correct 11 ms 14572 KB n=500
44 Correct 11 ms 14572 KB n=500
45 Correct 11 ms 14572 KB n=500
46 Correct 11 ms 14572 KB n=500
47 Correct 13 ms 14572 KB n=500
48 Correct 11 ms 14572 KB n=500
49 Correct 11 ms 14572 KB n=500
50 Correct 11 ms 14604 KB n=500
51 Correct 11 ms 14572 KB n=500
52 Correct 11 ms 14572 KB n=500
53 Correct 11 ms 14572 KB n=500
54 Correct 12 ms 14572 KB n=500
55 Correct 11 ms 14572 KB n=278
56 Correct 11 ms 14572 KB n=500
57 Correct 10 ms 14572 KB n=500
58 Correct 11 ms 14572 KB n=500
59 Correct 13 ms 14828 KB n=2000
60 Correct 16 ms 14956 KB n=2000
61 Correct 13 ms 14956 KB n=2000
62 Correct 13 ms 14956 KB n=2000
63 Correct 13 ms 14828 KB n=2000
64 Correct 13 ms 14956 KB n=2000
65 Correct 13 ms 14828 KB n=2000
66 Correct 15 ms 14956 KB n=2000
67 Correct 14 ms 14828 KB n=2000
68 Correct 13 ms 14956 KB n=2000
69 Correct 12 ms 14828 KB n=2000
70 Correct 13 ms 14828 KB n=2000
71 Correct 13 ms 14828 KB n=2000
72 Correct 12 ms 14828 KB n=2000
73 Correct 12 ms 14828 KB n=2000
74 Correct 13 ms 14828 KB n=1844
75 Correct 15 ms 14828 KB n=2000
76 Correct 14 ms 14828 KB n=2000
77 Correct 15 ms 14828 KB n=2000
78 Correct 15 ms 14828 KB n=2000
79 Correct 15 ms 14976 KB n=2000
80 Correct 13 ms 14956 KB n=2000
81 Correct 13 ms 14956 KB n=2000
82 Correct 14 ms 14828 KB n=2000
83 Correct 13 ms 14956 KB n=2000
84 Correct 13 ms 14828 KB n=2000
85 Correct 13 ms 14956 KB n=2000
86 Correct 13 ms 14956 KB n=2000
87 Correct 13 ms 14828 KB n=2000
88 Correct 13 ms 14956 KB n=2000
89 Correct 13 ms 14956 KB n=2000
90 Correct 13 ms 14956 KB n=2000
91 Correct 13 ms 14828 KB n=2000
92 Correct 828 ms 58092 KB n=200000
93 Correct 891 ms 63852 KB n=200000
94 Correct 853 ms 66924 KB n=200000
95 Correct 809 ms 59872 KB n=200000
96 Correct 809 ms 59744 KB n=200000
97 Correct 955 ms 62916 KB n=200000
98 Correct 805 ms 59872 KB n=200000
99 Correct 1048 ms 59260 KB n=200000
100 Correct 858 ms 59748 KB n=200000
101 Correct 820 ms 68076 KB n=200000
102 Correct 487 ms 60780 KB n=200000
103 Correct 499 ms 60832 KB n=200000
104 Correct 473 ms 60780 KB n=200000
105 Correct 485 ms 60396 KB n=200000
106 Correct 506 ms 60524 KB n=200000
107 Correct 483 ms 60524 KB n=200000
108 Correct 901 ms 59244 KB n=200000
109 Correct 912 ms 58600 KB n=200000
110 Correct 908 ms 58732 KB n=200000
111 Correct 834 ms 59008 KB n=200000
112 Correct 845 ms 66412 KB n=200000
113 Correct 899 ms 61932 KB n=200000
114 Correct 830 ms 58976 KB n=200000
115 Correct 1080 ms 59924 KB n=200000
116 Correct 786 ms 58836 KB n=200000
117 Correct 772 ms 66792 KB n=200000
118 Correct 957 ms 60652 KB n=200000
119 Correct 777 ms 58628 KB n=200000
120 Correct 737 ms 67052 KB n=200000
121 Correct 756 ms 67052 KB n=200000
122 Correct 774 ms 67652 KB n=200000
123 Correct 468 ms 59244 KB n=200000
124 Correct 183 ms 28652 KB n=25264