oj.uz

Submission #334916

# Submission time Handle Problem Language Result Execution time Memory
334916 2020-12-10T08:55:05 Z amunduzbaev Birthday gift (IZhO18_treearray) C++14
100 / 100
 1280 ms 86764 KB 
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define ub upper_bound
#define lb lower_bound
#define ll long long 
#define ld long double 
#define pii pair<int, int>
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(),x.rend()
#define prc(n) fixed << setprecision(n)
#define fastios ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define pi acos(-1);
const int inf = 1e9+7;
const int N = 2e5+5;

int n, m, q, a[N], tin[N], tout[N], l, t, up[N][32];
vector<int>edges[N];
set<int>ar[N];
set<int>lc[N];

void dfs(int u, int p){
	tin[u] = ++t;
	up[u][0] = p;
	for(int i=1; i<=l; i++){
		up[u][i] = up[up[u][i-1]][i-1];
	}
	for(auto x:edges[u]){
		if(x == p) continue;
		dfs(x, u);
	}
	tout[u] = ++t;
}


bool upper(int a, int b){
	return tin[a] <= tin[b] && tout[a] >= tout[b];
}

int lca(int a, int b){
	if(upper(a, b)) return a;
	if(upper(b, a)) return b;
	for(int i=l; i>=0; i--){
		if(!upper(up[a][i], b)) a = up[a][i];
	}
	return up[a][0];
}

void solve(){
	cin>>n>>m>>q;
	for(int i=1;i<n;i++){
		int a, b;
		cin>>a>>b;
		edges[a].pb(b);
		edges[b].pb(a);
	}
	l = 1;
	while((1<<l) <= n) l++; 
	dfs(1, 1);
	for(int i=1;i<=m;i++){
		cin>>a[i];
		ar[a[i]].insert(i);
	}
	for(int i=1;i<m;i++){
		lc[lca(a[i], a[i+1])].insert(i);
	}
	while(q--){
		int t;
		cin>>t;
		if(t == 1){
			int pos, val;
			cin>>pos>>val;
			ar[a[pos]].erase(pos);
			if(pos > 1) lc[lca(a[pos], a[pos-1])].erase(pos-1);
			if(pos < m) lc[lca(a[pos+1], a[pos])].erase(pos);
			
			a[pos] = val;
			if(pos > 1) lc[lca(a[pos], a[pos-1])].insert(pos-1);
			if(pos < m) lc[lca(a[pos+1], a[pos])].insert(pos);
			ar[a[pos]].insert(pos);
		}
		else{
			int l, r, val, la = -1, ra = -1;;
			cin>>l>>r>>val;
			auto it = ar[val].lb(l);
			if(it != ar[val].end())  if(*it <= r) la = ra = *it;
			it = lc[val].lb(l);
			if(it != lc[val].end())  if(*it < r) la = *it, ra = *it+1;
			cout<<la<<" "<<ra<<"\n";
		}
	}
	
	return;
}

int main(){
	fastios
	int t = 1;
	//cin>>t;
	while(t--) solve();
	return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 23788 KB n=5
2 Correct 16 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 17 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 16 ms 23916 KB n=100
11 Correct 16 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 16 ms 23916 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 16 ms 23916 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 16 ms 23916 KB n=100
19 Correct 16 ms 23916 KB n=100
20 Correct 16 ms 23916 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 16 ms 23916 KB n=100
23 Correct 18 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 23788 KB n=5
2 Correct 16 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 17 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 16 ms 23916 KB n=100
11 Correct 16 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 16 ms 23916 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 16 ms 23916 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 16 ms 23916 KB n=100
19 Correct 16 ms 23916 KB n=100
20 Correct 16 ms 23916 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 16 ms 23916 KB n=100
23 Correct 18 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 18 ms 24172 KB n=500
30 Correct 17 ms 23916 KB n=500
31 Correct 17 ms 24044 KB n=500
32 Correct 17 ms 23916 KB n=500
33 Correct 18 ms 23916 KB n=500
34 Correct 17 ms 23916 KB n=500
35 Correct 17 ms 24044 KB n=500
36 Correct 18 ms 23916 KB n=500
37 Correct 17 ms 23916 KB n=500
38 Correct 18 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 18 ms 23916 KB n=500
42 Correct 17 ms 23916 KB n=500
43 Correct 17 ms 23916 KB n=500
44 Correct 17 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 17 ms 24044 KB n=500
47 Correct 17 ms 24044 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 18 ms 24044 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 17 ms 23916 KB n=500
52 Correct 18 ms 24044 KB n=500
53 Correct 17 ms 23916 KB n=500
54 Correct 17 ms 24044 KB n=500
55 Correct 17 ms 24044 KB n=278
56 Correct 17 ms 24044 KB n=500
57 Correct 17 ms 24044 KB n=500
58 Correct 17 ms 23916 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 23788 KB n=5
2 Correct 16 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 17 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 16 ms 23916 KB n=100
11 Correct 16 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 16 ms 23916 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 16 ms 23916 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 16 ms 23916 KB n=100
19 Correct 16 ms 23916 KB n=100
20 Correct 16 ms 23916 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 16 ms 23916 KB n=100
23 Correct 18 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 18 ms 24172 KB n=500
30 Correct 17 ms 23916 KB n=500
31 Correct 17 ms 24044 KB n=500
32 Correct 17 ms 23916 KB n=500
33 Correct 18 ms 23916 KB n=500
34 Correct 17 ms 23916 KB n=500
35 Correct 17 ms 24044 KB n=500
36 Correct 18 ms 23916 KB n=500
37 Correct 17 ms 23916 KB n=500
38 Correct 18 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 18 ms 23916 KB n=500
42 Correct 17 ms 23916 KB n=500
43 Correct 17 ms 23916 KB n=500
44 Correct 17 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 17 ms 24044 KB n=500
47 Correct 17 ms 24044 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 18 ms 24044 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 17 ms 23916 KB n=500
52 Correct 18 ms 24044 KB n=500
53 Correct 17 ms 23916 KB n=500
54 Correct 17 ms 24044 KB n=500
55 Correct 17 ms 24044 KB n=278
56 Correct 17 ms 24044 KB n=500
57 Correct 17 ms 24044 KB n=500
58 Correct 17 ms 23916 KB n=500
59 Correct 20 ms 24428 KB n=2000
60 Correct 19 ms 24428 KB n=2000
61 Correct 20 ms 24556 KB n=2000
62 Correct 20 ms 24428 KB n=2000
63 Correct 20 ms 24428 KB n=2000
64 Correct 20 ms 24428 KB n=2000
65 Correct 20 ms 24428 KB n=2000
66 Correct 19 ms 24428 KB n=2000
67 Correct 20 ms 24428 KB n=2000
68 Correct 20 ms 24428 KB n=2000
69 Correct 19 ms 24428 KB n=2000
70 Correct 19 ms 24428 KB n=2000
71 Correct 20 ms 24556 KB n=2000
72 Correct 19 ms 24428 KB n=2000
73 Correct 19 ms 24428 KB n=2000
74 Correct 19 ms 24300 KB n=1844
75 Correct 19 ms 24428 KB n=2000
76 Correct 20 ms 24428 KB n=2000
77 Correct 20 ms 24428 KB n=2000
78 Correct 20 ms 24428 KB n=2000
79 Correct 20 ms 24428 KB n=2000
80 Correct 19 ms 24428 KB n=2000
81 Correct 20 ms 24428 KB n=2000
82 Correct 21 ms 24428 KB n=2000
83 Correct 20 ms 24428 KB n=2000
84 Correct 20 ms 24428 KB n=2000
85 Correct 20 ms 24428 KB n=2000
86 Correct 20 ms 24428 KB n=2000
87 Correct 20 ms 24428 KB n=2000
88 Correct 20 ms 24428 KB n=2000
89 Correct 19 ms 24428 KB n=2000
90 Correct 19 ms 24428 KB n=2000
91 Correct 19 ms 24428 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 23788 KB n=5
2 Correct 16 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 17 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 16 ms 23916 KB n=100
11 Correct 16 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 16 ms 23916 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 16 ms 23916 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 16 ms 23916 KB n=100
19 Correct 16 ms 23916 KB n=100
20 Correct 16 ms 23916 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 16 ms 23916 KB n=100
23 Correct 18 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 18 ms 24172 KB n=500
30 Correct 17 ms 23916 KB n=500
31 Correct 17 ms 24044 KB n=500
32 Correct 17 ms 23916 KB n=500
33 Correct 18 ms 23916 KB n=500
34 Correct 17 ms 23916 KB n=500
35 Correct 17 ms 24044 KB n=500
36 Correct 18 ms 23916 KB n=500
37 Correct 17 ms 23916 KB n=500
38 Correct 18 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 18 ms 23916 KB n=500
42 Correct 17 ms 23916 KB n=500
43 Correct 17 ms 23916 KB n=500
44 Correct 17 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 17 ms 24044 KB n=500
47 Correct 17 ms 24044 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 18 ms 24044 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 17 ms 23916 KB n=500
52 Correct 18 ms 24044 KB n=500
53 Correct 17 ms 23916 KB n=500
54 Correct 17 ms 24044 KB n=500
55 Correct 17 ms 24044 KB n=278
56 Correct 17 ms 24044 KB n=500
57 Correct 17 ms 24044 KB n=500
58 Correct 17 ms 23916 KB n=500
59 Correct 20 ms 24428 KB n=2000
60 Correct 19 ms 24428 KB n=2000
61 Correct 20 ms 24556 KB n=2000
62 Correct 20 ms 24428 KB n=2000
63 Correct 20 ms 24428 KB n=2000
64 Correct 20 ms 24428 KB n=2000
65 Correct 20 ms 24428 KB n=2000
66 Correct 19 ms 24428 KB n=2000
67 Correct 20 ms 24428 KB n=2000
68 Correct 20 ms 24428 KB n=2000
69 Correct 19 ms 24428 KB n=2000
70 Correct 19 ms 24428 KB n=2000
71 Correct 20 ms 24556 KB n=2000
72 Correct 19 ms 24428 KB n=2000
73 Correct 19 ms 24428 KB n=2000
74 Correct 19 ms 24300 KB n=1844
75 Correct 19 ms 24428 KB n=2000
76 Correct 20 ms 24428 KB n=2000
77 Correct 20 ms 24428 KB n=2000
78 Correct 20 ms 24428 KB n=2000
79 Correct 20 ms 24428 KB n=2000
80 Correct 19 ms 24428 KB n=2000
81 Correct 20 ms 24428 KB n=2000
82 Correct 21 ms 24428 KB n=2000
83 Correct 20 ms 24428 KB n=2000
84 Correct 20 ms 24428 KB n=2000
85 Correct 20 ms 24428 KB n=2000
86 Correct 20 ms 24428 KB n=2000
87 Correct 20 ms 24428 KB n=2000
88 Correct 20 ms 24428 KB n=2000
89 Correct 19 ms 24428 KB n=2000
90 Correct 19 ms 24428 KB n=2000
91 Correct 19 ms 24428 KB n=2000
92 Correct 857 ms 78520 KB n=200000
93 Correct 952 ms 82284 KB n=200000
94 Correct 714 ms 85356 KB n=200000
95 Correct 825 ms 78304 KB n=200000
96 Correct 831 ms 78524 KB n=200000
97 Correct 1038 ms 81260 KB n=200000
98 Correct 834 ms 78312 KB n=200000
99 Correct 1022 ms 77676 KB n=200000
100 Correct 843 ms 78184 KB n=200000
101 Correct 653 ms 86764 KB n=200000
102 Correct 501 ms 79212 KB n=200000
103 Correct 497 ms 79212 KB n=200000
104 Correct 498 ms 79080 KB n=200000
105 Correct 511 ms 78804 KB n=200000
106 Correct 519 ms 79024 KB n=200000
107 Correct 503 ms 78828 KB n=200000
108 Correct 922 ms 77968 KB n=200000
109 Correct 917 ms 77932 KB n=200000
110 Correct 908 ms 78060 KB n=200000
111 Correct 890 ms 78132 KB n=200000
112 Correct 690 ms 85612 KB n=200000
113 Correct 1010 ms 81132 KB n=200000
114 Correct 891 ms 78176 KB n=200000
115 Correct 1280 ms 78956 KB n=200000
116 Correct 789 ms 78048 KB n=200000
117 Correct 655 ms 86124 KB n=200000
118 Correct 1112 ms 80108 KB n=200000
119 Correct 778 ms 77920 KB n=200000
120 Correct 593 ms 86380 KB n=200000
121 Correct 597 ms 86508 KB n=200000
122 Correct 601 ms 86764 KB n=200000
123 Correct 536 ms 78572 KB n=200000
124 Correct 202 ms 38204 KB n=25264