oj.uz

Submission #41563

# Submission time Handle Problem Language Result Execution time Memory
41563 2018-02-19T02:01:54 Z aome Birthday gift (IZhO18_treearray) C++14
100 / 100
 3357 ms 113572 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 200005;

int n, m, q;
int a[N];
int high[N];
int p[20][N];
vector<int> G[N];
set<int> s[2][N];

int lca(int u, int v) {
	if (high[u] > high[v]) swap(u, v);
	for (int i = 18; i >= 0; --i) {
		if (high[p[i][v]] >= high[u]) v = p[i][v];
	}
	for (int i = 18; i >= 0; --i) {
		if (p[i][v] != p[i][u]) v = p[i][v], u = p[i][u];
	}
	return (u == v) ? u : p[0][u];
}

void dfs(int u) {
	for (auto v : G[u]) {
		if (p[0][u] == v) continue;
		p[0][v] = u, high[v] = high[u] + 1, dfs(v);
	}
}

int main() {
	ios::sync_with_stdio(false);
	cin >> n >> m >> q;
	for (int i = 1; i < n; ++i) {
		int u, v; cin >> u >> v;
		G[u].push_back(v), G[v].push_back(u);
	}
	p[0][1] = 1, dfs(1);
	for (int i = 1; i <= 18; ++i) {
		for (int j = 1; j <= n; ++j) {
			p[i][j] = p[i - 1][p[i - 1][j]];
		}
	}
	for (int i = 1; i <= m; ++i) cin >> a[i];
	for (int i = 1; i <= m; ++i) s[0][a[i]].insert(i);
	for (int i = 1; i < m; ++i) s[1][lca(a[i], a[i + 1])].insert(i);
	while (q--) {
		int type; cin >> type;
		if (type == 1) {
			int pos, v; cin >> pos >> v;
			s[0][a[pos]].erase(pos);
			s[0][v].insert(pos);
			if (pos > 1) {
				s[1][lca(a[pos - 1], a[pos])].erase(pos - 1);
				s[1][lca(a[pos - 1], v)].insert(pos - 1);
			}
			if (pos < m) {
				s[1][lca(a[pos], a[pos + 1])].erase(pos);
				s[1][lca(v, a[pos + 1])].insert(pos);
			}
			a[pos] = v;
		}
		else {
			int l, r, v; cin >> l >> r >> v;
			set<int> :: iterator it;
			it = s[0][v].lower_bound(l);
			if (it == s[0][v].end() || *it > r) {
				it = s[1][v].lower_bound(l);
				if (it != s[1][v].end() && *it < r) {
					cout << *it << ' ' << *it + 1 << '\n'; continue;
				}
			}
			else {
				cout << *it << ' ' << *it << '\n'; continue;
			}
			cout << "-1 -1\n";
		}
	}
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 23928 KB n=5
2 Correct 21 ms 24124 KB n=100
3 Correct 21 ms 24124 KB n=100
4 Correct 21 ms 24124 KB n=100
5 Correct 22 ms 24124 KB n=100
6 Correct 21 ms 24124 KB n=100
7 Correct 21 ms 24124 KB n=100
8 Correct 20 ms 24268 KB n=100
9 Correct 20 ms 24268 KB n=100
10 Correct 21 ms 24268 KB n=100
11 Correct 21 ms 24268 KB n=100
12 Correct 21 ms 24268 KB n=100
13 Correct 22 ms 24268 KB n=100
14 Correct 22 ms 24268 KB n=100
15 Correct 22 ms 24268 KB n=100
16 Correct 20 ms 24268 KB n=100
17 Correct 21 ms 24268 KB n=100
18 Correct 22 ms 24268 KB n=100
19 Correct 21 ms 24268 KB n=100
20 Correct 21 ms 24268 KB n=100
21 Correct 21 ms 24268 KB n=100
22 Correct 21 ms 24268 KB n=100
23 Correct 21 ms 24268 KB n=100
24 Correct 21 ms 24268 KB n=100
25 Correct 22 ms 24268 KB n=100
26 Correct 21 ms 24268 KB n=12
27 Correct 23 ms 24268 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 23928 KB n=5
2 Correct 21 ms 24124 KB n=100
3 Correct 21 ms 24124 KB n=100
4 Correct 21 ms 24124 KB n=100
5 Correct 22 ms 24124 KB n=100
6 Correct 21 ms 24124 KB n=100
7 Correct 21 ms 24124 KB n=100
8 Correct 20 ms 24268 KB n=100
9 Correct 20 ms 24268 KB n=100
10 Correct 21 ms 24268 KB n=100
11 Correct 21 ms 24268 KB n=100
12 Correct 21 ms 24268 KB n=100
13 Correct 22 ms 24268 KB n=100
14 Correct 22 ms 24268 KB n=100
15 Correct 22 ms 24268 KB n=100
16 Correct 20 ms 24268 KB n=100
17 Correct 21 ms 24268 KB n=100
18 Correct 22 ms 24268 KB n=100
19 Correct 21 ms 24268 KB n=100
20 Correct 21 ms 24268 KB n=100
21 Correct 21 ms 24268 KB n=100
22 Correct 21 ms 24268 KB n=100
23 Correct 21 ms 24268 KB n=100
24 Correct 21 ms 24268 KB n=100
25 Correct 22 ms 24268 KB n=100
26 Correct 21 ms 24268 KB n=12
27 Correct 23 ms 24268 KB n=100
28 Correct 23 ms 24312 KB n=500
29 Correct 22 ms 24324 KB n=500
30 Correct 22 ms 24340 KB n=500
31 Correct 23 ms 24356 KB n=500
32 Correct 23 ms 24372 KB n=500
33 Correct 24 ms 24384 KB n=500
34 Correct 24 ms 24400 KB n=500
35 Correct 22 ms 24412 KB n=500
36 Correct 25 ms 24428 KB n=500
37 Correct 23 ms 24440 KB n=500
38 Correct 23 ms 24452 KB n=500
39 Correct 22 ms 24464 KB n=500
40 Correct 22 ms 24484 KB n=500
41 Correct 24 ms 24496 KB n=500
42 Correct 22 ms 24516 KB n=500
43 Correct 24 ms 24524 KB n=500
44 Correct 24 ms 24536 KB n=500
45 Correct 23 ms 24548 KB n=500
46 Correct 22 ms 24560 KB n=500
47 Correct 23 ms 24704 KB n=500
48 Correct 24 ms 24704 KB n=500
49 Correct 24 ms 24704 KB n=500
50 Correct 24 ms 24704 KB n=500
51 Correct 23 ms 24704 KB n=500
52 Correct 23 ms 24776 KB n=500
53 Correct 23 ms 24776 KB n=500
54 Correct 24 ms 24776 KB n=500
55 Correct 25 ms 24816 KB n=278
56 Correct 26 ms 24824 KB n=500
57 Correct 26 ms 24824 KB n=500
58 Correct 23 ms 24824 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 23928 KB n=5
2 Correct 21 ms 24124 KB n=100
3 Correct 21 ms 24124 KB n=100
4 Correct 21 ms 24124 KB n=100
5 Correct 22 ms 24124 KB n=100
6 Correct 21 ms 24124 KB n=100
7 Correct 21 ms 24124 KB n=100
8 Correct 20 ms 24268 KB n=100
9 Correct 20 ms 24268 KB n=100
10 Correct 21 ms 24268 KB n=100
11 Correct 21 ms 24268 KB n=100
12 Correct 21 ms 24268 KB n=100
13 Correct 22 ms 24268 KB n=100
14 Correct 22 ms 24268 KB n=100
15 Correct 22 ms 24268 KB n=100
16 Correct 20 ms 24268 KB n=100
17 Correct 21 ms 24268 KB n=100
18 Correct 22 ms 24268 KB n=100
19 Correct 21 ms 24268 KB n=100
20 Correct 21 ms 24268 KB n=100
21 Correct 21 ms 24268 KB n=100
22 Correct 21 ms 24268 KB n=100
23 Correct 21 ms 24268 KB n=100
24 Correct 21 ms 24268 KB n=100
25 Correct 22 ms 24268 KB n=100
26 Correct 21 ms 24268 KB n=12
27 Correct 23 ms 24268 KB n=100
28 Correct 23 ms 24312 KB n=500
29 Correct 22 ms 24324 KB n=500
30 Correct 22 ms 24340 KB n=500
31 Correct 23 ms 24356 KB n=500
32 Correct 23 ms 24372 KB n=500
33 Correct 24 ms 24384 KB n=500
34 Correct 24 ms 24400 KB n=500
35 Correct 22 ms 24412 KB n=500
36 Correct 25 ms 24428 KB n=500
37 Correct 23 ms 24440 KB n=500
38 Correct 23 ms 24452 KB n=500
39 Correct 22 ms 24464 KB n=500
40 Correct 22 ms 24484 KB n=500
41 Correct 24 ms 24496 KB n=500
42 Correct 22 ms 24516 KB n=500
43 Correct 24 ms 24524 KB n=500
44 Correct 24 ms 24536 KB n=500
45 Correct 23 ms 24548 KB n=500
46 Correct 22 ms 24560 KB n=500
47 Correct 23 ms 24704 KB n=500
48 Correct 24 ms 24704 KB n=500
49 Correct 24 ms 24704 KB n=500
50 Correct 24 ms 24704 KB n=500
51 Correct 23 ms 24704 KB n=500
52 Correct 23 ms 24776 KB n=500
53 Correct 23 ms 24776 KB n=500
54 Correct 24 ms 24776 KB n=500
55 Correct 25 ms 24816 KB n=278
56 Correct 26 ms 24824 KB n=500
57 Correct 26 ms 24824 KB n=500
58 Correct 23 ms 24824 KB n=500
59 Correct 35 ms 25124 KB n=2000
60 Correct 29 ms 25212 KB n=2000
61 Correct 29 ms 25248 KB n=2000
62 Correct 29 ms 25320 KB n=2000
63 Correct 28 ms 25392 KB n=2000
64 Correct 30 ms 25572 KB n=2000
65 Correct 29 ms 25620 KB n=2000
66 Correct 30 ms 25620 KB n=2000
67 Correct 30 ms 25620 KB n=2000
68 Correct 29 ms 25680 KB n=2000
69 Correct 27 ms 25736 KB n=2000
70 Correct 29 ms 25788 KB n=2000
71 Correct 28 ms 25840 KB n=2000
72 Correct 28 ms 25988 KB n=2000
73 Correct 28 ms 25988 KB n=2000
74 Correct 29 ms 25988 KB n=1844
75 Correct 27 ms 26048 KB n=2000
76 Correct 29 ms 26104 KB n=2000
77 Correct 29 ms 26160 KB n=2000
78 Correct 30 ms 26208 KB n=2000
79 Correct 30 ms 26260 KB n=2000
80 Correct 30 ms 26416 KB n=2000
81 Correct 30 ms 26472 KB n=2000
82 Correct 33 ms 26528 KB n=2000
83 Correct 29 ms 26528 KB n=2000
84 Correct 29 ms 26528 KB n=2000
85 Correct 29 ms 26576 KB n=2000
86 Correct 33 ms 26704 KB n=2000
87 Correct 29 ms 26704 KB n=2000
88 Correct 31 ms 26868 KB n=2000
89 Correct 29 ms 26868 KB n=2000
90 Correct 38 ms 26868 KB n=2000
91 Correct 29 ms 26892 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 23928 KB n=5
2 Correct 21 ms 24124 KB n=100
3 Correct 21 ms 24124 KB n=100
4 Correct 21 ms 24124 KB n=100
5 Correct 22 ms 24124 KB n=100
6 Correct 21 ms 24124 KB n=100
7 Correct 21 ms 24124 KB n=100
8 Correct 20 ms 24268 KB n=100
9 Correct 20 ms 24268 KB n=100
10 Correct 21 ms 24268 KB n=100
11 Correct 21 ms 24268 KB n=100
12 Correct 21 ms 24268 KB n=100
13 Correct 22 ms 24268 KB n=100
14 Correct 22 ms 24268 KB n=100
15 Correct 22 ms 24268 KB n=100
16 Correct 20 ms 24268 KB n=100
17 Correct 21 ms 24268 KB n=100
18 Correct 22 ms 24268 KB n=100
19 Correct 21 ms 24268 KB n=100
20 Correct 21 ms 24268 KB n=100
21 Correct 21 ms 24268 KB n=100
22 Correct 21 ms 24268 KB n=100
23 Correct 21 ms 24268 KB n=100
24 Correct 21 ms 24268 KB n=100
25 Correct 22 ms 24268 KB n=100
26 Correct 21 ms 24268 KB n=12
27 Correct 23 ms 24268 KB n=100
28 Correct 23 ms 24312 KB n=500
29 Correct 22 ms 24324 KB n=500
30 Correct 22 ms 24340 KB n=500
31 Correct 23 ms 24356 KB n=500
32 Correct 23 ms 24372 KB n=500
33 Correct 24 ms 24384 KB n=500
34 Correct 24 ms 24400 KB n=500
35 Correct 22 ms 24412 KB n=500
36 Correct 25 ms 24428 KB n=500
37 Correct 23 ms 24440 KB n=500
38 Correct 23 ms 24452 KB n=500
39 Correct 22 ms 24464 KB n=500
40 Correct 22 ms 24484 KB n=500
41 Correct 24 ms 24496 KB n=500
42 Correct 22 ms 24516 KB n=500
43 Correct 24 ms 24524 KB n=500
44 Correct 24 ms 24536 KB n=500
45 Correct 23 ms 24548 KB n=500
46 Correct 22 ms 24560 KB n=500
47 Correct 23 ms 24704 KB n=500
48 Correct 24 ms 24704 KB n=500
49 Correct 24 ms 24704 KB n=500
50 Correct 24 ms 24704 KB n=500
51 Correct 23 ms 24704 KB n=500
52 Correct 23 ms 24776 KB n=500
53 Correct 23 ms 24776 KB n=500
54 Correct 24 ms 24776 KB n=500
55 Correct 25 ms 24816 KB n=278
56 Correct 26 ms 24824 KB n=500
57 Correct 26 ms 24824 KB n=500
58 Correct 23 ms 24824 KB n=500
59 Correct 35 ms 25124 KB n=2000
60 Correct 29 ms 25212 KB n=2000
61 Correct 29 ms 25248 KB n=2000
62 Correct 29 ms 25320 KB n=2000
63 Correct 28 ms 25392 KB n=2000
64 Correct 30 ms 25572 KB n=2000
65 Correct 29 ms 25620 KB n=2000
66 Correct 30 ms 25620 KB n=2000
67 Correct 30 ms 25620 KB n=2000
68 Correct 29 ms 25680 KB n=2000
69 Correct 27 ms 25736 KB n=2000
70 Correct 29 ms 25788 KB n=2000
71 Correct 28 ms 25840 KB n=2000
72 Correct 28 ms 25988 KB n=2000
73 Correct 28 ms 25988 KB n=2000
74 Correct 29 ms 25988 KB n=1844
75 Correct 27 ms 26048 KB n=2000
76 Correct 29 ms 26104 KB n=2000
77 Correct 29 ms 26160 KB n=2000
78 Correct 30 ms 26208 KB n=2000
79 Correct 30 ms 26260 KB n=2000
80 Correct 30 ms 26416 KB n=2000
81 Correct 30 ms 26472 KB n=2000
82 Correct 33 ms 26528 KB n=2000
83 Correct 29 ms 26528 KB n=2000
84 Correct 29 ms 26528 KB n=2000
85 Correct 29 ms 26576 KB n=2000
86 Correct 33 ms 26704 KB n=2000
87 Correct 29 ms 26704 KB n=2000
88 Correct 31 ms 26868 KB n=2000
89 Correct 29 ms 26868 KB n=2000
90 Correct 38 ms 26868 KB n=2000
91 Correct 29 ms 26892 KB n=2000
92 Correct 2701 ms 76440 KB n=200000
93 Correct 3357 ms 87776 KB n=200000
94 Correct 3254 ms 98904 KB n=200000
95 Correct 2706 ms 98904 KB n=200000
96 Correct 2515 ms 104568 KB n=200000
97 Correct 3151 ms 107920 KB n=200000
98 Correct 2677 ms 107920 KB n=200000
99 Correct 3206 ms 107920 KB n=200000
100 Correct 2486 ms 107920 KB n=200000
101 Correct 2924 ms 113572 KB n=200000
102 Correct 1277 ms 113572 KB n=200000
103 Correct 1332 ms 113572 KB n=200000
104 Correct 1305 ms 113572 KB n=200000
105 Correct 1337 ms 113572 KB n=200000
106 Correct 1306 ms 113572 KB n=200000
107 Correct 1349 ms 113572 KB n=200000
108 Correct 2867 ms 113572 KB n=200000
109 Correct 3013 ms 113572 KB n=200000
110 Correct 2936 ms 113572 KB n=200000
111 Correct 2282 ms 113572 KB n=200000
112 Correct 3054 ms 113572 KB n=200000
113 Correct 3092 ms 113572 KB n=200000
114 Correct 2279 ms 113572 KB n=200000
115 Correct 3333 ms 113572 KB n=200000
116 Correct 2512 ms 113572 KB n=200000
117 Correct 2881 ms 113572 KB n=200000
118 Correct 3121 ms 113572 KB n=200000
119 Correct 2449 ms 113572 KB n=200000
120 Correct 2843 ms 113572 KB n=200000
121 Correct 2873 ms 113572 KB n=200000
122 Correct 2900 ms 113572 KB n=200000
123 Correct 1411 ms 113572 KB n=200000
124 Correct 509 ms 113572 KB n=25264