oj.uz

답안 #873865

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
873865 2023-11-16T02:23:00 Z MinaRagy06 Tourism (JOI23_tourism) C++17
28 / 100
 5000 ms 18412 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long

const int N = 100'005;
vector<int> adj[N];
int h[N], st[N], en[N], t, anc[17][N];
void dfs(int i, int p, int d) {
	anc[0][i] = p;
	for (int j = 1; j < 17; j++) {
		anc[j][i] = anc[j - 1][anc[j - 1][i]];
	}
	h[i] = d;
	st[i] = t++;
	for (auto nxt : adj[i]) {
		if (nxt == p) continue;
		dfs(nxt, i, d + 1);
	}
	en[i] = t - 1;
}
int lca(int u, int v) {
	if (st[u] > st[v]) swap(u, v);
	if (st[u] <= st[v] && en[v] <= en[u]) {
		return u;
	}
	for (int j = 16; j >= 0; j--) {
		if (!(st[anc[j][u]] <= st[v] && en[v] <= en[anc[j][u]])) {
			u = anc[j][u];
		}
	}
	return anc[0][u];
}
int main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	int n, m, q;
	cin >> n >> m >> q;
	for (int i = 1, u, v; i < n; i++) {
		cin >> u >> v;
		adj[u].push_back(v);
		adj[v].push_back(u);
	}
	dfs(1, 1, 1);
	int a[m];
	for (int i = 0; i < m; i++) {
		cin >> a[i];
	}
	while (q--) {
		int l, r;
		cin >> l >> r;
		l--, r--;
		vector<int> cur;
		for (int i = l; i <= r; i++) {
			cur.push_back(a[i]);
		}
		sort(cur.begin(), cur.end(), [&] (int x, int y) {return st[x] < st[y];});
		int ans = h[cur[0]] - h[lca(cur[0], cur.back())] + 1;
		for (int i = 1; i < cur.size(); i++) {
			ans += h[cur[i]] - h[lca(cur[i], cur[i - 1])];
		}
		cout << ans << '\n';
	}
	return 0;
}

Compilation message

tourism.cpp: In function 'int main()':
tourism.cpp:57:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |   for (int i = 1; i < cur.size(); i++) {
      |                   ~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10332 KB Output is correct
2 Correct 2 ms 10332 KB Output is correct
3 Correct 2 ms 10332 KB Output is correct
4 Correct 3 ms 10444 KB Output is correct
5 Correct 3 ms 10332 KB Output is correct
6 Correct 3 ms 10332 KB Output is correct
7 Correct 3 ms 10332 KB Output is correct
8 Correct 3 ms 10332 KB Output is correct
9 Correct 4 ms 10332 KB Output is correct
10 Correct 4 ms 10332 KB Output is correct
11 Correct 4 ms 10332 KB Output is correct
12 Correct 7 ms 10448 KB Output is correct
13 Correct 7 ms 10332 KB Output is correct
14 Correct 9 ms 10968 KB Output is correct
15 Correct 3 ms 10500 KB Output is correct
16 Correct 3 ms 10332 KB Output is correct
17 Correct 3 ms 10332 KB Output is correct
18 Correct 3 ms 10332 KB Output is correct
19 Correct 3 ms 10332 KB Output is correct
20 Correct 3 ms 10332 KB Output is correct
21 Correct 5 ms 10332 KB Output is correct
22 Correct 4 ms 10476 KB Output is correct
23 Correct 4 ms 10332 KB Output is correct
24 Correct 5 ms 10332 KB Output is correct
25 Correct 5 ms 10332 KB Output is correct
26 Correct 5 ms 10332 KB Output is correct
27 Correct 2 ms 10332 KB Output is correct
28 Correct 2 ms 10468 KB Output is correct
29 Correct 2 ms 10332 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10332 KB Output is correct
2 Correct 2 ms 10332 KB Output is correct
3 Correct 2 ms 10332 KB Output is correct
4 Correct 3 ms 10444 KB Output is correct
5 Correct 3 ms 10332 KB Output is correct
6 Correct 3 ms 10332 KB Output is correct
7 Correct 3 ms 10332 KB Output is correct
8 Correct 3 ms 10332 KB Output is correct
9 Correct 4 ms 10332 KB Output is correct
10 Correct 4 ms 10332 KB Output is correct
11 Correct 4 ms 10332 KB Output is correct
12 Correct 7 ms 10448 KB Output is correct
13 Correct 7 ms 10332 KB Output is correct
14 Correct 9 ms 10968 KB Output is correct
15 Correct 3 ms 10500 KB Output is correct
16 Correct 3 ms 10332 KB Output is correct
17 Correct 3 ms 10332 KB Output is correct
18 Correct 3 ms 10332 KB Output is correct
19 Correct 3 ms 10332 KB Output is correct
20 Correct 3 ms 10332 KB Output is correct
21 Correct 5 ms 10332 KB Output is correct
22 Correct 4 ms 10476 KB Output is correct
23 Correct 4 ms 10332 KB Output is correct
24 Correct 5 ms 10332 KB Output is correct
25 Correct 5 ms 10332 KB Output is correct
26 Correct 5 ms 10332 KB Output is correct
27 Correct 2 ms 10332 KB Output is correct
28 Correct 2 ms 10468 KB Output is correct
29 Correct 2 ms 10332 KB Output is correct
30 Correct 58 ms 10332 KB Output is correct
31 Correct 83 ms 10544 KB Output is correct
32 Correct 121 ms 10568 KB Output is correct
33 Correct 120 ms 10580 KB Output is correct
34 Correct 125 ms 10580 KB Output is correct
35 Correct 329 ms 10568 KB Output is correct
36 Correct 328 ms 10588 KB Output is correct
37 Correct 325 ms 10588 KB Output is correct
38 Correct 70 ms 10452 KB Output is correct
39 Correct 69 ms 10656 KB Output is correct
40 Correct 70 ms 10664 KB Output is correct
41 Correct 218 ms 10672 KB Output is correct
42 Correct 219 ms 10588 KB Output is correct
43 Correct 224 ms 10644 KB Output is correct
44 Correct 70 ms 10612 KB Output is correct
45 Correct 73 ms 10588 KB Output is correct
46 Correct 72 ms 10588 KB Output is correct
47 Correct 225 ms 10836 KB Output is correct
48 Correct 223 ms 10604 KB Output is correct
49 Correct 222 ms 10588 KB Output is correct
50 Correct 144 ms 10588 KB Output is correct
51 Correct 141 ms 10588 KB Output is correct
52 Correct 144 ms 10588 KB Output is correct
53 Correct 137 ms 10588 KB Output is correct
54 Correct 139 ms 10612 KB Output is correct
55 Correct 138 ms 10588 KB Output is correct
56 Correct 14 ms 10332 KB Output is correct
57 Correct 3 ms 10332 KB Output is correct
58 Correct 3 ms 10332 KB Output is correct

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10332 KB Output is correct
2 Correct 2 ms 10332 KB Output is correct
3 Correct 14 ms 10500 KB Output is correct
4 Execution timed out 5050 ms 18412 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10332 KB Output is correct
2 Correct 29 ms 13548 KB Output is correct
3 Correct 40 ms 13916 KB Output is correct
4 Correct 36 ms 14028 KB Output is correct
5 Correct 51 ms 16592 KB Output is correct
6 Correct 59 ms 16212 KB Output is correct
7 Correct 65 ms 16076 KB Output is correct
8 Correct 56 ms 15956 KB Output is correct
9 Correct 60 ms 15768 KB Output is correct
10 Correct 58 ms 15964 KB Output is correct
11 Correct 55 ms 15772 KB Output is correct
12 Correct 57 ms 15956 KB Output is correct
13 Correct 68 ms 16088 KB Output is correct
14 Correct 60 ms 16320 KB Output is correct
15 Correct 72 ms 17292 KB Output is correct
16 Correct 57 ms 16432 KB Output is correct
17 Correct 55 ms 16348 KB Output is correct
18 Correct 65 ms 16648 KB Output is correct
19 Correct 44 ms 16424 KB Output is correct
20 Correct 47 ms 16176 KB Output is correct
21 Correct 44 ms 16064 KB Output is correct
22 Correct 50 ms 15956 KB Output is correct
23 Correct 48 ms 15784 KB Output is correct
24 Correct 51 ms 15880 KB Output is correct
25 Correct 56 ms 15708 KB Output is correct
26 Correct 51 ms 15696 KB Output is correct
27 Correct 52 ms 15708 KB Output is correct
28 Correct 53 ms 15708 KB Output is correct
29 Correct 69 ms 15972 KB Output is correct
30 Correct 55 ms 15700 KB Output is correct
31 Correct 56 ms 15956 KB Output is correct
32 Correct 60 ms 16036 KB Output is correct
33 Correct 63 ms 16484 KB Output is correct
34 Correct 67 ms 17264 KB Output is correct

Subtask #5
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10332 KB Output is correct
2 Correct 2 ms 10332 KB Output is correct
3 Correct 14 ms 10332 KB Output is correct
4 Execution timed out 5072 ms 15164 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 10332 KB Output is correct
2 Correct 2 ms 10332 KB Output is correct
3 Correct 2 ms 10332 KB Output is correct
4 Correct 3 ms 10444 KB Output is correct
5 Correct 3 ms 10332 KB Output is correct
6 Correct 3 ms 10332 KB Output is correct
7 Correct 3 ms 10332 KB Output is correct
8 Correct 3 ms 10332 KB Output is correct
9 Correct 4 ms 10332 KB Output is correct
10 Correct 4 ms 10332 KB Output is correct
11 Correct 4 ms 10332 KB Output is correct
12 Correct 7 ms 10448 KB Output is correct
13 Correct 7 ms 10332 KB Output is correct
14 Correct 9 ms 10968 KB Output is correct
15 Correct 3 ms 10500 KB Output is correct
16 Correct 3 ms 10332 KB Output is correct
17 Correct 3 ms 10332 KB Output is correct
18 Correct 3 ms 10332 KB Output is correct
19 Correct 3 ms 10332 KB Output is correct
20 Correct 3 ms 10332 KB Output is correct
21 Correct 5 ms 10332 KB Output is correct
22 Correct 4 ms 10476 KB Output is correct
23 Correct 4 ms 10332 KB Output is correct
24 Correct 5 ms 10332 KB Output is correct
25 Correct 5 ms 10332 KB Output is correct
26 Correct 5 ms 10332 KB Output is correct
27 Correct 2 ms 10332 KB Output is correct
28 Correct 2 ms 10468 KB Output is correct
29 Correct 2 ms 10332 KB Output is correct
30 Correct 58 ms 10332 KB Output is correct
31 Correct 83 ms 10544 KB Output is correct
32 Correct 121 ms 10568 KB Output is correct
33 Correct 120 ms 10580 KB Output is correct
34 Correct 125 ms 10580 KB Output is correct
35 Correct 329 ms 10568 KB Output is correct
36 Correct 328 ms 10588 KB Output is correct
37 Correct 325 ms 10588 KB Output is correct
38 Correct 70 ms 10452 KB Output is correct
39 Correct 69 ms 10656 KB Output is correct
40 Correct 70 ms 10664 KB Output is correct
41 Correct 218 ms 10672 KB Output is correct
42 Correct 219 ms 10588 KB Output is correct
43 Correct 224 ms 10644 KB Output is correct
44 Correct 70 ms 10612 KB Output is correct
45 Correct 73 ms 10588 KB Output is correct
46 Correct 72 ms 10588 KB Output is correct
47 Correct 225 ms 10836 KB Output is correct
48 Correct 223 ms 10604 KB Output is correct
49 Correct 222 ms 10588 KB Output is correct
50 Correct 144 ms 10588 KB Output is correct
51 Correct 141 ms 10588 KB Output is correct
52 Correct 144 ms 10588 KB Output is correct
53 Correct 137 ms 10588 KB Output is correct
54 Correct 139 ms 10612 KB Output is correct
55 Correct 138 ms 10588 KB Output is correct
56 Correct 14 ms 10332 KB Output is correct
57 Correct 3 ms 10332 KB Output is correct
58 Correct 3 ms 10332 KB Output is correct
59 Correct 2 ms 10332 KB Output is correct
60 Correct 2 ms 10332 KB Output is correct
61 Correct 14 ms 10500 KB Output is correct
62 Execution timed out 5050 ms 18412 KB Time limit exceeded
63 Halted 0 ms 0 KB -