oj.uz

Submission #889609

# Submission time Handle Problem Language Result Execution time Memory
889609 2023-12-20T03:50:57 Z vjudge1 Tourism (JOI23_tourism) C++17
28 / 100
 5000 ms 16496 KB 
#include <bits/stdc++.h>
using namespace std;

#define ff first
#define ss second
#define all(a) a.begin(), a.end()
const int mod = 998244353;
const int N = 1e5;

vector<int> g[N+1];
int depth[N+1], c[N+1];
int timer=1;
int tin[N+1], tout[N+1];
int up[N+1][18];
int n, m, q;

void dfs(int v, int par){
	up[v][0] = par;
	tin[v] = timer++;
	for(int i = 1;i < 18; i++){
		up[v][i] = up[up[v][i-1]][i-1];
	}
	for(int to : g[v]){
		if(to == par) continue;
		depth[to] = depth[v] + 1;
		dfs(to, v);
	}
	tout[v] = timer++;
}

int lca(int a, int b){
	if(depth[a] > depth[b]) swap(a, b);
	int k = depth[b] - depth[a];
	for(int i = 0;i < 18; i++){
		if(k & (1<<i)){
			b = up[b][i];
		}
	}
	if(a == b) return a;
	for(int i = 17; i >= 0; i--){
		if(up[a][i] != up[b][i]){
			a = up[a][i];
			b = up[b][i];
		}
	}
	return up[a][0];
}

int vert;
vector<int> vec;


int in_subtree(int v){
	int it = lower_bound(all(vec), tin[v]) - vec.begin();
	if(it < (int)vec.size() && vec[it] <= tout[v]) return 1;
	return 0;
}

void ans(int v, int par){
	if(!in_subtree(v)) return;
	vert++;
	for(int to : g[v]){
		if(to == par) continue;
		ans(to, v);
	}
}

signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	 cin >> n >> m >> q;
	for(int i = 1;i < n; i++){
		int a, b; cin >> a >> b;
		g[a].push_back(b);
		g[b].push_back(a);
	}
	for(int i = 0;i < m; i++){
		cin >> c[i];
	}
	dfs(1, 1);
	while(q--){
		int l, r; cin >> l >> r;
		l--, r--;
		int mn = c[l], mx = c[l];
		vec.clear();
		for(int i = l;i <= r; i++){
			vec.push_back(tin[c[i]]);
			if(tin[mn] > tin[c[i]]){
				mn = c[i];
			}
			if(tin[mx] < tin[c[i]]){
				mx = c[i];
			}
		}
		sort(all(vec));
		vec.erase(unique(all(vec)), vec.end());
		vert = 0;
		int lc = lca(mn, mx);
		ans(lc, up[lc][0]);
		
		cout << vert << '\n';
		
	}
	
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Correct 3 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 5 ms 4956 KB Output is correct
10 Correct 5 ms 4956 KB Output is correct
11 Correct 5 ms 5044 KB Output is correct
12 Correct 7 ms 4956 KB Output is correct
13 Correct 6 ms 5120 KB Output is correct
14 Correct 7 ms 4956 KB Output is correct
15 Correct 4 ms 4956 KB Output is correct
16 Correct 4 ms 4964 KB Output is correct
17 Correct 4 ms 4956 KB Output is correct
18 Correct 4 ms 5124 KB Output is correct
19 Correct 4 ms 4956 KB Output is correct
20 Correct 5 ms 5120 KB Output is correct
21 Correct 4 ms 4952 KB Output is correct
22 Correct 4 ms 4956 KB Output is correct
23 Correct 5 ms 4956 KB Output is correct
24 Correct 5 ms 4956 KB Output is correct
25 Correct 5 ms 4956 KB Output is correct
26 Correct 4 ms 4956 KB Output is correct
27 Correct 2 ms 4956 KB Output is correct
28 Correct 1 ms 4956 KB Output is correct
29 Correct 2 ms 4956 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Correct 3 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 5 ms 4956 KB Output is correct
10 Correct 5 ms 4956 KB Output is correct
11 Correct 5 ms 5044 KB Output is correct
12 Correct 7 ms 4956 KB Output is correct
13 Correct 6 ms 5120 KB Output is correct
14 Correct 7 ms 4956 KB Output is correct
15 Correct 4 ms 4956 KB Output is correct
16 Correct 4 ms 4964 KB Output is correct
17 Correct 4 ms 4956 KB Output is correct
18 Correct 4 ms 5124 KB Output is correct
19 Correct 4 ms 4956 KB Output is correct
20 Correct 5 ms 5120 KB Output is correct
21 Correct 4 ms 4952 KB Output is correct
22 Correct 4 ms 4956 KB Output is correct
23 Correct 5 ms 4956 KB Output is correct
24 Correct 5 ms 4956 KB Output is correct
25 Correct 5 ms 4956 KB Output is correct
26 Correct 4 ms 4956 KB Output is correct
27 Correct 2 ms 4956 KB Output is correct
28 Correct 1 ms 4956 KB Output is correct
29 Correct 2 ms 4956 KB Output is correct
30 Correct 89 ms 5212 KB Output is correct
31 Correct 129 ms 5212 KB Output is correct
32 Correct 186 ms 5288 KB Output is correct
33 Correct 194 ms 5296 KB Output is correct
34 Correct 199 ms 5288 KB Output is correct
35 Correct 376 ms 5220 KB Output is correct
36 Correct 371 ms 5292 KB Output is correct
37 Correct 384 ms 5224 KB Output is correct
38 Correct 181 ms 5380 KB Output is correct
39 Correct 171 ms 5208 KB Output is correct
40 Correct 176 ms 5208 KB Output is correct
41 Correct 353 ms 5392 KB Output is correct
42 Correct 357 ms 5392 KB Output is correct
43 Correct 349 ms 5360 KB Output is correct
44 Correct 173 ms 5208 KB Output is correct
45 Correct 172 ms 5312 KB Output is correct
46 Correct 175 ms 5332 KB Output is correct
47 Correct 346 ms 5320 KB Output is correct
48 Correct 347 ms 5304 KB Output is correct
49 Correct 346 ms 5208 KB Output is correct
50 Correct 180 ms 5296 KB Output is correct
51 Correct 185 ms 5300 KB Output is correct
52 Correct 180 ms 5300 KB Output is correct
53 Correct 181 ms 5296 KB Output is correct
54 Correct 182 ms 5300 KB Output is correct
55 Correct 183 ms 5212 KB Output is correct
56 Correct 16 ms 5104 KB Output is correct
57 Correct 3 ms 5296 KB Output is correct
58 Correct 2 ms 5212 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 5208 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 14 ms 4956 KB Output is correct
4 Execution timed out 5086 ms 15152 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 51 ms 11100 KB Output is correct
3 Correct 81 ms 11856 KB Output is correct
4 Correct 65 ms 14360 KB Output is correct
5 Correct 55 ms 16076 KB Output is correct
6 Correct 59 ms 15952 KB Output is correct
7 Correct 67 ms 15696 KB Output is correct
8 Correct 83 ms 15452 KB Output is correct
9 Correct 95 ms 15676 KB Output is correct
10 Correct 101 ms 15440 KB Output is correct
11 Correct 110 ms 15668 KB Output is correct
12 Correct 105 ms 15672 KB Output is correct
13 Correct 112 ms 15916 KB Output is correct
14 Correct 138 ms 16064 KB Output is correct
15 Correct 64 ms 16428 KB Output is correct
16 Correct 86 ms 16208 KB Output is correct
17 Correct 95 ms 16212 KB Output is correct
18 Correct 99 ms 16496 KB Output is correct
19 Correct 47 ms 16220 KB Output is correct
20 Correct 50 ms 15952 KB Output is correct
21 Correct 57 ms 15700 KB Output is correct
22 Correct 66 ms 15696 KB Output is correct
23 Correct 88 ms 15960 KB Output is correct
24 Correct 124 ms 15708 KB Output is correct
25 Correct 168 ms 15444 KB Output is correct
26 Correct 242 ms 15700 KB Output is correct
27 Correct 344 ms 15444 KB Output is correct
28 Correct 421 ms 15696 KB Output is correct
29 Correct 517 ms 15888 KB Output is correct
30 Correct 674 ms 15704 KB Output is correct
31 Correct 747 ms 16116 KB Output is correct
32 Correct 832 ms 16264 KB Output is correct
33 Correct 646 ms 16140 KB Output is correct
34 Correct 64 ms 16492 KB Output is correct

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4952 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 14 ms 4956 KB Output is correct
4 Execution timed out 5044 ms 12036 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Correct 3 ms 4956 KB Output is correct
6 Correct 3 ms 4956 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 5 ms 4956 KB Output is correct
10 Correct 5 ms 4956 KB Output is correct
11 Correct 5 ms 5044 KB Output is correct
12 Correct 7 ms 4956 KB Output is correct
13 Correct 6 ms 5120 KB Output is correct
14 Correct 7 ms 4956 KB Output is correct
15 Correct 4 ms 4956 KB Output is correct
16 Correct 4 ms 4964 KB Output is correct
17 Correct 4 ms 4956 KB Output is correct
18 Correct 4 ms 5124 KB Output is correct
19 Correct 4 ms 4956 KB Output is correct
20 Correct 5 ms 5120 KB Output is correct
21 Correct 4 ms 4952 KB Output is correct
22 Correct 4 ms 4956 KB Output is correct
23 Correct 5 ms 4956 KB Output is correct
24 Correct 5 ms 4956 KB Output is correct
25 Correct 5 ms 4956 KB Output is correct
26 Correct 4 ms 4956 KB Output is correct
27 Correct 2 ms 4956 KB Output is correct
28 Correct 1 ms 4956 KB Output is correct
29 Correct 2 ms 4956 KB Output is correct
30 Correct 89 ms 5212 KB Output is correct
31 Correct 129 ms 5212 KB Output is correct
32 Correct 186 ms 5288 KB Output is correct
33 Correct 194 ms 5296 KB Output is correct
34 Correct 199 ms 5288 KB Output is correct
35 Correct 376 ms 5220 KB Output is correct
36 Correct 371 ms 5292 KB Output is correct
37 Correct 384 ms 5224 KB Output is correct
38 Correct 181 ms 5380 KB Output is correct
39 Correct 171 ms 5208 KB Output is correct
40 Correct 176 ms 5208 KB Output is correct
41 Correct 353 ms 5392 KB Output is correct
42 Correct 357 ms 5392 KB Output is correct
43 Correct 349 ms 5360 KB Output is correct
44 Correct 173 ms 5208 KB Output is correct
45 Correct 172 ms 5312 KB Output is correct
46 Correct 175 ms 5332 KB Output is correct
47 Correct 346 ms 5320 KB Output is correct
48 Correct 347 ms 5304 KB Output is correct
49 Correct 346 ms 5208 KB Output is correct
50 Correct 180 ms 5296 KB Output is correct
51 Correct 185 ms 5300 KB Output is correct
52 Correct 180 ms 5300 KB Output is correct
53 Correct 181 ms 5296 KB Output is correct
54 Correct 182 ms 5300 KB Output is correct
55 Correct 183 ms 5212 KB Output is correct
56 Correct 16 ms 5104 KB Output is correct
57 Correct 3 ms 5296 KB Output is correct
58 Correct 2 ms 5212 KB Output is correct
59 Correct 1 ms 5208 KB Output is correct
60 Correct 1 ms 4956 KB Output is correct
61 Correct 14 ms 4956 KB Output is correct
62 Execution timed out 5086 ms 15152 KB Time limit exceeded
63 Halted 0 ms 0 KB -