oj.uz

Submission #341955

# Submission time Handle Problem Language Result Execution time Memory
341955 2020-12-31T18:50:42 Z _ani Birthday gift (IZhO18_treearray) C++17
100 / 100
 1206 ms 78316 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <cmath>
#include <set>
using namespace std;
const int l = 18;
set <int> v[2 * 100002];
set<int> p[2 * 100002];
int a[2 * 100002];
int up[2 * 100002][l + 1], tin[2 * 100002], tout[2 * 100002], t;
vector<int> g[2 * 100002];
void Dfs(int v, int p)
{
	tin[v] = ++t;
	up[v][0] = p;
	for (int i = 1; i <= l; i++)
		if (up[v][i - 1] != -1)
			up[v][i] = up[up[v][i - 1]][i - 1];
	for (int to : g[v])
		if (to != p)
			Dfs(to, v);
	tout[v] = t;
}
bool IsParent(int a, int b) {
	return tin[a] <= tin[b] && tout[a] >= tout[b];
}
int Lca(int a, int b)
{
	if (IsParent(a, b))return a;
	if (IsParent(b, a))return b;
	for (int i = l; i >= 0; --i)
		if (up[a][i] != -1 && !IsParent(up[a][i], b))
			a = up[a][i];
	return up[a][0];
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	int n, m, q;
	cin >> n >> m >> q;
	for (int i = 0; i < n - 1; i++)
	{
		int u, v;
		cin >> u >> v;
		g[u].push_back(v);
		g[v].push_back(u);
	}
	for (int i = 1; i <= n; i++)
		for (int j = 0; j <= l; j++)
			up[i][j] = -1;
	Dfs(1, -1);
	for (int i = 0; i < m; i++)
	{
		cin >> a[i];
		v[a[i]].insert(i);
		if (i > 0)
			p[Lca(a[i], a[i - 1])].insert(i - 1);
	}
	while (q--)
	{
		int type;
		cin >> type;
		if (type == 1)
		{
			int pos, V;
			cin >> pos >> V;
			pos--;
			v[a[pos]].erase(pos);
			if (pos - 1 >= 0)
			{
				p[Lca(a[pos], a[pos - 1])].erase(pos - 1);
				p[Lca(V, a[pos - 1])].insert(pos - 1);
			}
			if (pos + 1 < m)
			{
				p[Lca(a[pos], a[pos + 1])].erase(pos);
				p[Lca(V, a[pos + 1])].insert(pos);
			}
			a[pos] = V;
			v[V].insert(pos);
		}
		else
		{
			bool ok = false;
			int l, r, V;
			cin >> l >> r >> V;
			l--;
			r--;
			auto it = v[V].lower_bound(l);
			if (it != v[V].end() && *it <= r)
			{
				cout << *it + 1 << ' ' << *it + 1 << '\n';
				ok = true;
			}
			if (!ok)
			{
				auto it = p[V].lower_bound(l);
				if (it != p[V].end() && *it + 1 <= r)
				{
					cout << *it + 1 << ' ' << *it + 2 << '\n';
					ok = true;
				}
			}
			if (!ok)
				cout << -1 << ' ' << -1 << '\n';
		}
	}
	return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 16 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 16 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 18 ms 24044 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 16 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 16 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 17 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 16 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 16 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 18 ms 24044 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 16 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 16 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 17 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 17 ms 23916 KB n=500
30 Correct 20 ms 23916 KB n=500
31 Correct 18 ms 23916 KB n=500
32 Correct 18 ms 24044 KB n=500
33 Correct 17 ms 23916 KB n=500
34 Correct 17 ms 24016 KB n=500
35 Correct 17 ms 23916 KB n=500
36 Correct 17 ms 23916 KB n=500
37 Correct 17 ms 24044 KB n=500
38 Correct 17 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 17 ms 23916 KB n=500
42 Correct 17 ms 23916 KB n=500
43 Correct 17 ms 23916 KB n=500
44 Correct 18 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 17 ms 23916 KB n=500
47 Correct 17 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 17 ms 23916 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 17 ms 23916 KB n=500
52 Correct 17 ms 23916 KB n=500
53 Correct 17 ms 23916 KB n=500
54 Correct 17 ms 23916 KB n=500
55 Correct 16 ms 23916 KB n=278
56 Correct 17 ms 23916 KB n=500
57 Correct 17 ms 23916 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 16 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 16 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 18 ms 24044 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 16 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 16 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 17 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 17 ms 23916 KB n=500
30 Correct 20 ms 23916 KB n=500
31 Correct 18 ms 23916 KB n=500
32 Correct 18 ms 24044 KB n=500
33 Correct 17 ms 23916 KB n=500
34 Correct 17 ms 24016 KB n=500
35 Correct 17 ms 23916 KB n=500
36 Correct 17 ms 23916 KB n=500
37 Correct 17 ms 24044 KB n=500
38 Correct 17 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 17 ms 23916 KB n=500
42 Correct 17 ms 23916 KB n=500
43 Correct 17 ms 23916 KB n=500
44 Correct 18 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 17 ms 23916 KB n=500
47 Correct 17 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 17 ms 23916 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 17 ms 23916 KB n=500
52 Correct 17 ms 23916 KB n=500
53 Correct 17 ms 23916 KB n=500
54 Correct 17 ms 23916 KB n=500
55 Correct 16 ms 23916 KB n=278
56 Correct 17 ms 23916 KB n=500
57 Correct 17 ms 23916 KB n=500
58 Correct 17 ms 23916 KB n=500
59 Correct 20 ms 24300 KB n=2000
60 Correct 19 ms 24428 KB n=2000
61 Correct 20 ms 24300 KB n=2000
62 Correct 20 ms 24300 KB n=2000
63 Correct 20 ms 24300 KB n=2000
64 Correct 19 ms 24300 KB n=2000
65 Correct 21 ms 24300 KB n=2000
66 Correct 19 ms 24300 KB n=2000
67 Correct 20 ms 24300 KB n=2000
68 Correct 20 ms 24300 KB n=2000
69 Correct 19 ms 24300 KB n=2000
70 Correct 19 ms 24300 KB n=2000
71 Correct 19 ms 24300 KB n=2000
72 Correct 19 ms 24300 KB n=2000
73 Correct 19 ms 24300 KB n=2000
74 Correct 19 ms 24300 KB n=1844
75 Correct 19 ms 24300 KB n=2000
76 Correct 20 ms 24428 KB n=2000
77 Correct 21 ms 24300 KB n=2000
78 Correct 20 ms 24300 KB n=2000
79 Correct 20 ms 24300 KB n=2000
80 Correct 19 ms 24300 KB n=2000
81 Correct 19 ms 24300 KB n=2000
82 Correct 19 ms 24300 KB n=2000
83 Correct 19 ms 24300 KB n=2000
84 Correct 22 ms 24300 KB n=2000
85 Correct 20 ms 24300 KB n=2000
86 Correct 20 ms 24300 KB n=2000
87 Correct 19 ms 24300 KB n=2000
88 Correct 19 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 24300 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 16 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 16 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 18 ms 24044 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 16 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 16 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 17 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 17 ms 23916 KB n=500
30 Correct 20 ms 23916 KB n=500
31 Correct 18 ms 23916 KB n=500
32 Correct 18 ms 24044 KB n=500
33 Correct 17 ms 23916 KB n=500
34 Correct 17 ms 24016 KB n=500
35 Correct 17 ms 23916 KB n=500
36 Correct 17 ms 23916 KB n=500
37 Correct 17 ms 24044 KB n=500
38 Correct 17 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 17 ms 23916 KB n=500
42 Correct 17 ms 23916 KB n=500
43 Correct 17 ms 23916 KB n=500
44 Correct 18 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 17 ms 23916 KB n=500
47 Correct 17 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 17 ms 23916 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 17 ms 23916 KB n=500
52 Correct 17 ms 23916 KB n=500
53 Correct 17 ms 23916 KB n=500
54 Correct 17 ms 23916 KB n=500
55 Correct 16 ms 23916 KB n=278
56 Correct 17 ms 23916 KB n=500
57 Correct 17 ms 23916 KB n=500
58 Correct 17 ms 23916 KB n=500
59 Correct 20 ms 24300 KB n=2000
60 Correct 19 ms 24428 KB n=2000
61 Correct 20 ms 24300 KB n=2000
62 Correct 20 ms 24300 KB n=2000
63 Correct 20 ms 24300 KB n=2000
64 Correct 19 ms 24300 KB n=2000
65 Correct 21 ms 24300 KB n=2000
66 Correct 19 ms 24300 KB n=2000
67 Correct 20 ms 24300 KB n=2000
68 Correct 20 ms 24300 KB n=2000
69 Correct 19 ms 24300 KB n=2000
70 Correct 19 ms 24300 KB n=2000
71 Correct 19 ms 24300 KB n=2000
72 Correct 19 ms 24300 KB n=2000
73 Correct 19 ms 24300 KB n=2000
74 Correct 19 ms 24300 KB n=1844
75 Correct 19 ms 24300 KB n=2000
76 Correct 20 ms 24428 KB n=2000
77 Correct 21 ms 24300 KB n=2000
78 Correct 20 ms 24300 KB n=2000
79 Correct 20 ms 24300 KB n=2000
80 Correct 19 ms 24300 KB n=2000
81 Correct 19 ms 24300 KB n=2000
82 Correct 19 ms 24300 KB n=2000
83 Correct 19 ms 24300 KB n=2000
84 Correct 22 ms 24300 KB n=2000
85 Correct 20 ms 24300 KB n=2000
86 Correct 20 ms 24300 KB n=2000
87 Correct 19 ms 24300 KB n=2000
88 Correct 19 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 24300 KB n=2000
92 Correct 779 ms 68204 KB n=200000
93 Correct 938 ms 73580 KB n=200000
94 Correct 708 ms 77164 KB n=200000
95 Correct 759 ms 69872 KB n=200000
96 Correct 720 ms 69856 KB n=200000
97 Correct 1018 ms 72812 KB n=200000
98 Correct 764 ms 69856 KB n=200000
99 Correct 937 ms 69516 KB n=200000
100 Correct 734 ms 69988 KB n=200000
101 Correct 621 ms 78188 KB n=200000
102 Correct 502 ms 70764 KB n=200000
103 Correct 498 ms 70764 KB n=200000
104 Correct 508 ms 70764 KB n=200000
105 Correct 509 ms 70512 KB n=200000
106 Correct 500 ms 70508 KB n=200000
107 Correct 493 ms 70508 KB n=200000
108 Correct 849 ms 69612 KB n=200000
109 Correct 856 ms 69596 KB n=200000
110 Correct 842 ms 69572 KB n=200000
111 Correct 755 ms 69732 KB n=200000
112 Correct 666 ms 77164 KB n=200000
113 Correct 983 ms 73068 KB n=200000
114 Correct 760 ms 69728 KB n=200000
115 Correct 1206 ms 70636 KB n=200000
116 Correct 706 ms 69600 KB n=200000
117 Correct 657 ms 77676 KB n=200000
118 Correct 1091 ms 71660 KB n=200000
119 Correct 700 ms 69728 KB n=200000
120 Correct 576 ms 77932 KB n=200000
121 Correct 574 ms 77932 KB n=200000
122 Correct 573 ms 78316 KB n=200000
123 Correct 512 ms 70124 KB n=200000
124 Correct 207 ms 38636 KB n=25264