oj.uz

답안 #878097

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
878097 2023-11-24T05:12:36 Z TAhmed33 Tourism (JOI23_tourism) C++
10 / 100
 5000 ms 42396 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5 + 25;
int in[MAXN], out[MAXN], depth[MAXN];
pair <int, int> sparse[__lg(MAXN)][MAXN];
vector <int> adj[MAXN];
int n, m, q;
int cnt = 0;
void dfs (int pos, int par, int dep = 1) {
	depth[pos] = dep;
	sparse[0][++cnt] = {dep, pos};
	in[pos] = cnt;
	for (auto j : adj[pos]) {
		if (j != par) {
			dfs(j, pos, dep + 1);
			sparse[0][++cnt] = {dep, pos};
		}
	}
	out[pos] = dep;
}
int query (int l, int r) {
	if (l > r) swap(l, r);
	if (l == r) return sparse[0][l].second;
	int x = __lg(r - l + 1);
	return min(sparse[x][l], sparse[x][r - (1 << x) + 1]).second;
}
int arr[MAXN];
int main () {
	cin >> n >> m >> q;
	for (int i = 1; i < n; i++) {
		int a, b;
		cin >> a >> b;
		adj[a].push_back(b);
		adj[b].push_back(a);
	}
	dfs(1, -1);
	for (int i = 1; i <= __lg(cnt); i++) {
		for (int j = 1; j <= cnt; j++) {
			sparse[i][j] = min(sparse[i - 1][j], sparse[i - 1][j + (1 << (i - 1))]);
		}
	}
	for (int i = 1; i <= m; i++) cin >> arr[i];
	for (int i = 1; i <= q; i++) {
		int l, r;
		cin >> l >> r;
		vector <int> g;
		for (int j = l; j <= r; j++) g.push_back(arr[j]);
		sort(g.begin(), g.end(), [&] (int a, int b) {
			return in[a] < in[b];
		});
		int ans = depth[g[0]], lca = g[0];
		for (int j = 1; j < (int)g.size(); j++) {
			ans += depth[g[j]] - depth[query(in[g[j]], in[g[j - 1]])];
			lca = query(in[lca], in[g[j]]);
		}
		ans -= depth[lca]; ans++;
		cout << ans << '\n';
	}
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12748 KB Output is correct
3 Correct 2 ms 14684 KB Output is correct
4 Correct 5 ms 20828 KB Output is correct
5 Correct 5 ms 20828 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 22872 KB Output is correct
9 Correct 5 ms 22876 KB Output is correct
10 Correct 5 ms 22876 KB Output is correct
11 Correct 7 ms 22872 KB Output is correct
12 Correct 8 ms 22876 KB Output is correct
13 Correct 9 ms 22876 KB Output is correct
14 Correct 8 ms 22876 KB Output is correct
15 Correct 6 ms 22876 KB Output is correct
16 Correct 6 ms 22872 KB Output is correct
17 Correct 5 ms 22996 KB Output is correct
18 Correct 5 ms 22876 KB Output is correct
19 Correct 5 ms 22876 KB Output is correct
20 Correct 6 ms 22984 KB Output is correct
21 Correct 6 ms 22876 KB Output is correct
22 Correct 5 ms 22964 KB Output is correct
23 Correct 5 ms 23128 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 5 ms 22872 KB Output is correct
26 Correct 5 ms 22952 KB Output is correct
27 Correct 2 ms 8540 KB Output is correct
28 Correct 4 ms 22872 KB Output is correct
29 Correct 4 ms 22876 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12748 KB Output is correct
3 Correct 2 ms 14684 KB Output is correct
4 Correct 5 ms 20828 KB Output is correct
5 Correct 5 ms 20828 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 22872 KB Output is correct
9 Correct 5 ms 22876 KB Output is correct
10 Correct 5 ms 22876 KB Output is correct
11 Correct 7 ms 22872 KB Output is correct
12 Correct 8 ms 22876 KB Output is correct
13 Correct 9 ms 22876 KB Output is correct
14 Correct 8 ms 22876 KB Output is correct
15 Correct 6 ms 22876 KB Output is correct
16 Correct 6 ms 22872 KB Output is correct
17 Correct 5 ms 22996 KB Output is correct
18 Correct 5 ms 22876 KB Output is correct
19 Correct 5 ms 22876 KB Output is correct
20 Correct 6 ms 22984 KB Output is correct
21 Correct 6 ms 22876 KB Output is correct
22 Correct 5 ms 22964 KB Output is correct
23 Correct 5 ms 23128 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 5 ms 22872 KB Output is correct
26 Correct 5 ms 22952 KB Output is correct
27 Correct 2 ms 8540 KB Output is correct
28 Correct 4 ms 22872 KB Output is correct
29 Correct 4 ms 22876 KB Output is correct
30 Correct 43 ms 25176 KB Output is correct
31 Correct 62 ms 25432 KB Output is correct
32 Correct 87 ms 25192 KB Output is correct
33 Correct 90 ms 25176 KB Output is correct
34 Correct 85 ms 25176 KB Output is correct
35 Correct 258 ms 25176 KB Output is correct
36 Correct 256 ms 25192 KB Output is correct
37 Correct 253 ms 25180 KB Output is correct
38 Correct 89 ms 25180 KB Output is correct
39 Correct 89 ms 25180 KB Output is correct
40 Correct 87 ms 25308 KB Output is correct
41 Correct 256 ms 25328 KB Output is correct
42 Correct 260 ms 25424 KB Output is correct
43 Correct 255 ms 25292 KB Output is correct
44 Correct 86 ms 25180 KB Output is correct
45 Correct 91 ms 25180 KB Output is correct
46 Correct 90 ms 25252 KB Output is correct
47 Correct 258 ms 25180 KB Output is correct
48 Correct 261 ms 25180 KB Output is correct
49 Correct 258 ms 25240 KB Output is correct
50 Correct 82 ms 25204 KB Output is correct
51 Correct 84 ms 25200 KB Output is correct
52 Correct 84 ms 25180 KB Output is correct
53 Correct 88 ms 25180 KB Output is correct
54 Correct 83 ms 25180 KB Output is correct
55 Correct 82 ms 25176 KB Output is correct
56 Correct 19 ms 8536 KB Output is correct
57 Correct 8 ms 24924 KB Output is correct
58 Correct 8 ms 25040 KB Output is correct

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 8624 KB Output is correct
3 Correct 19 ms 8540 KB Output is correct
4 Execution timed out 5067 ms 42396 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 53 ms 36308 KB Output is correct
3 Correct 66 ms 36900 KB Output is correct
4 Incorrect 65 ms 37204 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 3 ms 8540 KB Output is correct
3 Correct 19 ms 8540 KB Output is correct
4 Execution timed out 5085 ms 37732 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 12636 KB Output is correct
2 Correct 2 ms 12748 KB Output is correct
3 Correct 2 ms 14684 KB Output is correct
4 Correct 5 ms 20828 KB Output is correct
5 Correct 5 ms 20828 KB Output is correct
6 Correct 4 ms 20828 KB Output is correct
7 Correct 4 ms 20828 KB Output is correct
8 Correct 4 ms 22872 KB Output is correct
9 Correct 5 ms 22876 KB Output is correct
10 Correct 5 ms 22876 KB Output is correct
11 Correct 7 ms 22872 KB Output is correct
12 Correct 8 ms 22876 KB Output is correct
13 Correct 9 ms 22876 KB Output is correct
14 Correct 8 ms 22876 KB Output is correct
15 Correct 6 ms 22876 KB Output is correct
16 Correct 6 ms 22872 KB Output is correct
17 Correct 5 ms 22996 KB Output is correct
18 Correct 5 ms 22876 KB Output is correct
19 Correct 5 ms 22876 KB Output is correct
20 Correct 6 ms 22984 KB Output is correct
21 Correct 6 ms 22876 KB Output is correct
22 Correct 5 ms 22964 KB Output is correct
23 Correct 5 ms 23128 KB Output is correct
24 Correct 5 ms 22876 KB Output is correct
25 Correct 5 ms 22872 KB Output is correct
26 Correct 5 ms 22952 KB Output is correct
27 Correct 2 ms 8540 KB Output is correct
28 Correct 4 ms 22872 KB Output is correct
29 Correct 4 ms 22876 KB Output is correct
30 Correct 43 ms 25176 KB Output is correct
31 Correct 62 ms 25432 KB Output is correct
32 Correct 87 ms 25192 KB Output is correct
33 Correct 90 ms 25176 KB Output is correct
34 Correct 85 ms 25176 KB Output is correct
35 Correct 258 ms 25176 KB Output is correct
36 Correct 256 ms 25192 KB Output is correct
37 Correct 253 ms 25180 KB Output is correct
38 Correct 89 ms 25180 KB Output is correct
39 Correct 89 ms 25180 KB Output is correct
40 Correct 87 ms 25308 KB Output is correct
41 Correct 256 ms 25328 KB Output is correct
42 Correct 260 ms 25424 KB Output is correct
43 Correct 255 ms 25292 KB Output is correct
44 Correct 86 ms 25180 KB Output is correct
45 Correct 91 ms 25180 KB Output is correct
46 Correct 90 ms 25252 KB Output is correct
47 Correct 258 ms 25180 KB Output is correct
48 Correct 261 ms 25180 KB Output is correct
49 Correct 258 ms 25240 KB Output is correct
50 Correct 82 ms 25204 KB Output is correct
51 Correct 84 ms 25200 KB Output is correct
52 Correct 84 ms 25180 KB Output is correct
53 Correct 88 ms 25180 KB Output is correct
54 Correct 83 ms 25180 KB Output is correct
55 Correct 82 ms 25176 KB Output is correct
56 Correct 19 ms 8536 KB Output is correct
57 Correct 8 ms 24924 KB Output is correct
58 Correct 8 ms 25040 KB Output is correct
59 Correct 2 ms 12636 KB Output is correct
60 Correct 2 ms 8624 KB Output is correct
61 Correct 19 ms 8540 KB Output is correct
62 Execution timed out 5067 ms 42396 KB Time limit exceeded
63 Halted 0 ms 0 KB -