oj.uz

Submission #167514

# Submission time Handle Problem Language Result Execution time Memory
167514 2019-12-08T18:14:26 Z manh9203 Birthday gift (IZhO18_treearray) C++17
100 / 100
 1341 ms 84296 KB 
#include<bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5;
int n,m,q,u,v,a[N],par[N][20],h[N],type,l,r,id;
vector<int> adj[N];
set<int> pos1[N],pos2[N];
void dfs(int u,int p){
	for(int v: adj[u]){
		if(v != p){
			h[v] = h[u] + 1;
			par[v][0] = u;
			dfs(v, u);
		}
	}
}
int lca(int u,int v){
	if(h[u] < h[v]) swap(u, v);
	for(int i=18;i>=0;i--){
		if(h[u] - (1<<i) >= h[v]){
			u = par[u][i];
		}
	}
	if(u == v){
		return u;
	}else{
		for(int i=18;i>=0;i--){
			if(par[u][i] != -1 && par[v][i] != -1 && par[u][i] != par[v][i]){
				u = par[u][i];
				v = par[v][i];
			}
		}
		return par[u][0];
	}
}
int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n >> m >> q;
	for(int i=1;i<n;i++){
		cin >> u >> v;
		adj[u].push_back(v);
		adj[v].push_back(u);
	}
	h[1] = 1;
	memset(par, -1, sizeof par);
	dfs(1, 1);
	for(int j=1;(1<<j)<=n;j++){
		for(int i=1;i<=n;i++){
			if(par[i][j-1] != -1){
				par[i][j] = par[par[i][j-1]][j-1];
			}
		}
	}
	for(int i=1;i<=m;i++){
		cin >> a[i];
		pos1[a[i]].insert(i);
	}
	for(int i=1;i<m;i++){
		u = lca(a[i], a[i+1]);
		pos2[u].insert(i);
	}
	while(q--){
		cin >> type;
		if(type == 1){
			cin >> id >> v;
			pos1[a[id]].erase(id);
			if(id > 1){
				u = lca(a[id-1], a[id]);
				pos2[u].erase(id-1);
			}
			if(id < m){
				u = lca(a[id], a[id+1]);
				pos2[u].erase(id);
			}
			a[id] = v;
			pos1[a[id]].insert(id);
			if(id > 1){
				u = lca(a[id-1], a[id]);
				pos2[u].insert(id-1);
			}
			if(id < m){
				u = lca(a[id], a[id+1]);
				pos2[u].insert(id);
			}
		}
		if(type == 2){
			cin >> l >> r >> v;
			if(pos1[v].size() > 0){
				auto it = pos1[v].lower_bound(l);
				if(it != pos1[v].end() && *it <= r){
					cout << *it << " " << *it << "\n";
					continue;
				}
			}
			if(pos2[v].size() > 0){
				auto it1 = pos2[v].lower_bound(l);
				if(it1 != pos2[v].end() && *it1 < r){
					cout << *it1 << " " << (*it1) + 1 << "\n";
					continue;
				}
			}
			cout << "-1 -1\n";
		}
	}
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 39416 KB n=5
2 Correct 38 ms 39544 KB n=100
3 Correct 38 ms 39544 KB n=100
4 Correct 39 ms 39544 KB n=100
5 Correct 38 ms 39544 KB n=100
6 Correct 38 ms 39492 KB n=100
7 Correct 38 ms 39544 KB n=100
8 Correct 38 ms 39528 KB n=100
9 Correct 39 ms 39544 KB n=100
10 Correct 39 ms 39672 KB n=100
11 Correct 38 ms 39544 KB n=100
12 Correct 39 ms 39544 KB n=100
13 Correct 38 ms 39420 KB n=100
14 Correct 38 ms 39512 KB n=100
15 Correct 39 ms 39428 KB n=100
16 Correct 38 ms 39516 KB n=100
17 Correct 38 ms 39508 KB n=100
18 Correct 39 ms 39544 KB n=100
19 Correct 38 ms 39416 KB n=100
20 Correct 38 ms 39544 KB n=100
21 Correct 38 ms 39480 KB n=100
22 Correct 38 ms 39544 KB n=100
23 Correct 39 ms 39420 KB n=100
24 Correct 39 ms 39544 KB n=100
25 Correct 38 ms 39544 KB n=100
26 Correct 38 ms 39544 KB n=12
27 Correct 38 ms 39544 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 39416 KB n=5
2 Correct 38 ms 39544 KB n=100
3 Correct 38 ms 39544 KB n=100
4 Correct 39 ms 39544 KB n=100
5 Correct 38 ms 39544 KB n=100
6 Correct 38 ms 39492 KB n=100
7 Correct 38 ms 39544 KB n=100
8 Correct 38 ms 39528 KB n=100
9 Correct 39 ms 39544 KB n=100
10 Correct 39 ms 39672 KB n=100
11 Correct 38 ms 39544 KB n=100
12 Correct 39 ms 39544 KB n=100
13 Correct 38 ms 39420 KB n=100
14 Correct 38 ms 39512 KB n=100
15 Correct 39 ms 39428 KB n=100
16 Correct 38 ms 39516 KB n=100
17 Correct 38 ms 39508 KB n=100
18 Correct 39 ms 39544 KB n=100
19 Correct 38 ms 39416 KB n=100
20 Correct 38 ms 39544 KB n=100
21 Correct 38 ms 39480 KB n=100
22 Correct 38 ms 39544 KB n=100
23 Correct 39 ms 39420 KB n=100
24 Correct 39 ms 39544 KB n=100
25 Correct 38 ms 39544 KB n=100
26 Correct 38 ms 39544 KB n=12
27 Correct 38 ms 39544 KB n=100
28 Correct 40 ms 39544 KB n=500
29 Correct 39 ms 39544 KB n=500
30 Correct 40 ms 39544 KB n=500
31 Correct 40 ms 39672 KB n=500
32 Correct 39 ms 39548 KB n=500
33 Correct 40 ms 39544 KB n=500
34 Correct 40 ms 39568 KB n=500
35 Correct 39 ms 39544 KB n=500
36 Correct 40 ms 39544 KB n=500
37 Correct 39 ms 39568 KB n=500
38 Correct 39 ms 39544 KB n=500
39 Correct 39 ms 39520 KB n=500
40 Correct 39 ms 39648 KB n=500
41 Correct 40 ms 39672 KB n=500
42 Correct 40 ms 39544 KB n=500
43 Correct 40 ms 39544 KB n=500
44 Correct 40 ms 39544 KB n=500
45 Correct 39 ms 39544 KB n=500
46 Correct 39 ms 39544 KB n=500
47 Correct 39 ms 39544 KB n=500
48 Correct 40 ms 39544 KB n=500
49 Correct 39 ms 39548 KB n=500
50 Correct 39 ms 39524 KB n=500
51 Correct 39 ms 39544 KB n=500
52 Correct 39 ms 39608 KB n=500
53 Correct 40 ms 39544 KB n=500
54 Correct 39 ms 39548 KB n=500
55 Correct 39 ms 39544 KB n=278
56 Correct 39 ms 39544 KB n=500
57 Correct 39 ms 39672 KB n=500
58 Correct 39 ms 39540 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 39416 KB n=5
2 Correct 38 ms 39544 KB n=100
3 Correct 38 ms 39544 KB n=100
4 Correct 39 ms 39544 KB n=100
5 Correct 38 ms 39544 KB n=100
6 Correct 38 ms 39492 KB n=100
7 Correct 38 ms 39544 KB n=100
8 Correct 38 ms 39528 KB n=100
9 Correct 39 ms 39544 KB n=100
10 Correct 39 ms 39672 KB n=100
11 Correct 38 ms 39544 KB n=100
12 Correct 39 ms 39544 KB n=100
13 Correct 38 ms 39420 KB n=100
14 Correct 38 ms 39512 KB n=100
15 Correct 39 ms 39428 KB n=100
16 Correct 38 ms 39516 KB n=100
17 Correct 38 ms 39508 KB n=100
18 Correct 39 ms 39544 KB n=100
19 Correct 38 ms 39416 KB n=100
20 Correct 38 ms 39544 KB n=100
21 Correct 38 ms 39480 KB n=100
22 Correct 38 ms 39544 KB n=100
23 Correct 39 ms 39420 KB n=100
24 Correct 39 ms 39544 KB n=100
25 Correct 38 ms 39544 KB n=100
26 Correct 38 ms 39544 KB n=12
27 Correct 38 ms 39544 KB n=100
28 Correct 40 ms 39544 KB n=500
29 Correct 39 ms 39544 KB n=500
30 Correct 40 ms 39544 KB n=500
31 Correct 40 ms 39672 KB n=500
32 Correct 39 ms 39548 KB n=500
33 Correct 40 ms 39544 KB n=500
34 Correct 40 ms 39568 KB n=500
35 Correct 39 ms 39544 KB n=500
36 Correct 40 ms 39544 KB n=500
37 Correct 39 ms 39568 KB n=500
38 Correct 39 ms 39544 KB n=500
39 Correct 39 ms 39520 KB n=500
40 Correct 39 ms 39648 KB n=500
41 Correct 40 ms 39672 KB n=500
42 Correct 40 ms 39544 KB n=500
43 Correct 40 ms 39544 KB n=500
44 Correct 40 ms 39544 KB n=500
45 Correct 39 ms 39544 KB n=500
46 Correct 39 ms 39544 KB n=500
47 Correct 39 ms 39544 KB n=500
48 Correct 40 ms 39544 KB n=500
49 Correct 39 ms 39548 KB n=500
50 Correct 39 ms 39524 KB n=500
51 Correct 39 ms 39544 KB n=500
52 Correct 39 ms 39608 KB n=500
53 Correct 40 ms 39544 KB n=500
54 Correct 39 ms 39548 KB n=500
55 Correct 39 ms 39544 KB n=278
56 Correct 39 ms 39544 KB n=500
57 Correct 39 ms 39672 KB n=500
58 Correct 39 ms 39540 KB n=500
59 Correct 42 ms 39828 KB n=2000
60 Correct 42 ms 39900 KB n=2000
61 Correct 43 ms 39928 KB n=2000
62 Correct 43 ms 39808 KB n=2000
63 Correct 43 ms 39800 KB n=2000
64 Correct 43 ms 39800 KB n=2000
65 Correct 43 ms 39800 KB n=2000
66 Correct 43 ms 39928 KB n=2000
67 Correct 43 ms 39928 KB n=2000
68 Correct 42 ms 39800 KB n=2000
69 Correct 41 ms 39800 KB n=2000
70 Correct 41 ms 39800 KB n=2000
71 Correct 41 ms 39800 KB n=2000
72 Correct 41 ms 39800 KB n=2000
73 Correct 40 ms 39800 KB n=2000
74 Correct 42 ms 39804 KB n=1844
75 Correct 41 ms 39800 KB n=2000
76 Correct 43 ms 39800 KB n=2000
77 Correct 42 ms 39800 KB n=2000
78 Correct 43 ms 39904 KB n=2000
79 Correct 42 ms 39928 KB n=2000
80 Correct 42 ms 39972 KB n=2000
81 Correct 43 ms 39928 KB n=2000
82 Correct 42 ms 39800 KB n=2000
83 Correct 42 ms 39928 KB n=2000
84 Correct 42 ms 39800 KB n=2000
85 Correct 42 ms 39800 KB n=2000
86 Correct 43 ms 39800 KB n=2000
87 Correct 42 ms 39800 KB n=2000
88 Correct 43 ms 39928 KB n=2000
89 Correct 42 ms 39928 KB n=2000
90 Correct 43 ms 39928 KB n=2000
91 Correct 42 ms 39928 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 39416 KB n=5
2 Correct 38 ms 39544 KB n=100
3 Correct 38 ms 39544 KB n=100
4 Correct 39 ms 39544 KB n=100
5 Correct 38 ms 39544 KB n=100
6 Correct 38 ms 39492 KB n=100
7 Correct 38 ms 39544 KB n=100
8 Correct 38 ms 39528 KB n=100
9 Correct 39 ms 39544 KB n=100
10 Correct 39 ms 39672 KB n=100
11 Correct 38 ms 39544 KB n=100
12 Correct 39 ms 39544 KB n=100
13 Correct 38 ms 39420 KB n=100
14 Correct 38 ms 39512 KB n=100
15 Correct 39 ms 39428 KB n=100
16 Correct 38 ms 39516 KB n=100
17 Correct 38 ms 39508 KB n=100
18 Correct 39 ms 39544 KB n=100
19 Correct 38 ms 39416 KB n=100
20 Correct 38 ms 39544 KB n=100
21 Correct 38 ms 39480 KB n=100
22 Correct 38 ms 39544 KB n=100
23 Correct 39 ms 39420 KB n=100
24 Correct 39 ms 39544 KB n=100
25 Correct 38 ms 39544 KB n=100
26 Correct 38 ms 39544 KB n=12
27 Correct 38 ms 39544 KB n=100
28 Correct 40 ms 39544 KB n=500
29 Correct 39 ms 39544 KB n=500
30 Correct 40 ms 39544 KB n=500
31 Correct 40 ms 39672 KB n=500
32 Correct 39 ms 39548 KB n=500
33 Correct 40 ms 39544 KB n=500
34 Correct 40 ms 39568 KB n=500
35 Correct 39 ms 39544 KB n=500
36 Correct 40 ms 39544 KB n=500
37 Correct 39 ms 39568 KB n=500
38 Correct 39 ms 39544 KB n=500
39 Correct 39 ms 39520 KB n=500
40 Correct 39 ms 39648 KB n=500
41 Correct 40 ms 39672 KB n=500
42 Correct 40 ms 39544 KB n=500
43 Correct 40 ms 39544 KB n=500
44 Correct 40 ms 39544 KB n=500
45 Correct 39 ms 39544 KB n=500
46 Correct 39 ms 39544 KB n=500
47 Correct 39 ms 39544 KB n=500
48 Correct 40 ms 39544 KB n=500
49 Correct 39 ms 39548 KB n=500
50 Correct 39 ms 39524 KB n=500
51 Correct 39 ms 39544 KB n=500
52 Correct 39 ms 39608 KB n=500
53 Correct 40 ms 39544 KB n=500
54 Correct 39 ms 39548 KB n=500
55 Correct 39 ms 39544 KB n=278
56 Correct 39 ms 39544 KB n=500
57 Correct 39 ms 39672 KB n=500
58 Correct 39 ms 39540 KB n=500
59 Correct 42 ms 39828 KB n=2000
60 Correct 42 ms 39900 KB n=2000
61 Correct 43 ms 39928 KB n=2000
62 Correct 43 ms 39808 KB n=2000
63 Correct 43 ms 39800 KB n=2000
64 Correct 43 ms 39800 KB n=2000
65 Correct 43 ms 39800 KB n=2000
66 Correct 43 ms 39928 KB n=2000
67 Correct 43 ms 39928 KB n=2000
68 Correct 42 ms 39800 KB n=2000
69 Correct 41 ms 39800 KB n=2000
70 Correct 41 ms 39800 KB n=2000
71 Correct 41 ms 39800 KB n=2000
72 Correct 41 ms 39800 KB n=2000
73 Correct 40 ms 39800 KB n=2000
74 Correct 42 ms 39804 KB n=1844
75 Correct 41 ms 39800 KB n=2000
76 Correct 43 ms 39800 KB n=2000
77 Correct 42 ms 39800 KB n=2000
78 Correct 43 ms 39904 KB n=2000
79 Correct 42 ms 39928 KB n=2000
80 Correct 42 ms 39972 KB n=2000
81 Correct 43 ms 39928 KB n=2000
82 Correct 42 ms 39800 KB n=2000
83 Correct 42 ms 39928 KB n=2000
84 Correct 42 ms 39800 KB n=2000
85 Correct 42 ms 39800 KB n=2000
86 Correct 43 ms 39800 KB n=2000
87 Correct 42 ms 39800 KB n=2000
88 Correct 43 ms 39928 KB n=2000
89 Correct 42 ms 39928 KB n=2000
90 Correct 43 ms 39928 KB n=2000
91 Correct 42 ms 39928 KB n=2000
92 Correct 854 ms 74632 KB n=200000
93 Correct 1209 ms 79528 KB n=200000
94 Correct 1219 ms 82940 KB n=200000
95 Correct 874 ms 74576 KB n=200000
96 Correct 833 ms 74476 KB n=200000
97 Correct 1285 ms 78712 KB n=200000
98 Correct 913 ms 74636 KB n=200000
99 Correct 1071 ms 74844 KB n=200000
100 Correct 876 ms 74680 KB n=200000
101 Correct 1341 ms 84296 KB n=200000
102 Correct 553 ms 75628 KB n=200000
103 Correct 556 ms 75652 KB n=200000
104 Correct 588 ms 75660 KB n=200000
105 Correct 538 ms 76048 KB n=200000
106 Correct 558 ms 76280 KB n=200000
107 Correct 527 ms 76096 KB n=200000
108 Correct 985 ms 74488 KB n=200000
109 Correct 969 ms 74452 KB n=200000
110 Correct 960 ms 74820 KB n=200000
111 Correct 843 ms 74092 KB n=200000
112 Correct 1292 ms 83208 KB n=200000
113 Correct 1303 ms 78748 KB n=200000
114 Correct 879 ms 73960 KB n=200000
115 Correct 1279 ms 76412 KB n=200000
116 Correct 887 ms 74620 KB n=200000
117 Correct 1247 ms 83640 KB n=200000
118 Correct 1289 ms 77452 KB n=200000
119 Correct 872 ms 74744 KB n=200000
120 Correct 1182 ms 82996 KB n=200000
121 Correct 1161 ms 83264 KB n=200000
122 Correct 1170 ms 83452 KB n=200000
123 Correct 517 ms 75896 KB n=200000
124 Correct 303 ms 52572 KB n=25264