oj.uz

답안 #889788

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
889788 2023-12-20T07:11:52 Z vjudge1 Tourism (JOI23_tourism) C++17
17 / 100
 2184 ms 14376 KB 
#include <bits/stdc++.h>

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

#pragma GCC target("avx,avx2,fma")
#pragma GCC optimize("Ofast,unroll-loops")

using namespace __gnu_pbds;
using namespace std;

#define int long long
#define pb push_back

const int N = 1e5 + 1,INF = 1e18;

vector<int> c1(N),c2(N);
vector<int> g[N];
pair<int,int> t[N * 4];
 
void build(int tl,int tr,int v){
	if(tl == tr){
		t[v].first = c1[tl];
		t[v].second = c1[tl];
		return;
	}
	int tm = (tl + tr) >> 1;
	build(tl,tm,v * 2);
	build(tm + 1,tr,v * 2 + 1);
	t[v].first = max(t[v * 2].first,t[v * 2 + 1].first);
	t[v].second = min(t[v * 2].second,t[v * 2 + 1].second);
}
 
pair<int,int> get(int l,int r,int v,int tl,int tr){
	if(tl > r || tr < l){
		return {-INF,INF};
	}
	if(l <= tl && tr <= r){
		return t[v];
	}
	int tm = (tl + tr) >> 1;
	pair<int,int> x,y;
	x = get(l, r, v * 2,tl,tm);
	y = get(l,r,v * 2 + 1,tm + 1,tr);
	pair<int,int> res;
	res.first = max(x.first,y.first);
	res.second = min(x.second,y.second);
	return res;
}
 
void solve(){
	
	int n,q,m;
	cin >> n >> m >> q;
	
	for(int i = 0;i < n - 1;i++){
		int a,b;
		cin>>a>>b;
		g[a].pb(b);
		g[b].pb(a);
	}
	
	for(int i = 1;i <= m;i++){
		int a;
		cin>>a;
		c1[i] = a;
		c2[a] = i;
	}
	if(n <= 2000){
		while(q--){
			int l,r;
			cin >> l >> r;
			vector<int> dis(n + 1);
			queue<pair<int,int>> q;
			q.push({c1[l],-1});
			dis[c1[l]] = 1;
			vector<int> pr(n + 1);
			while(!q.empty()){
				auto [v,p] = q.front();
				q.pop();
				
				for(auto u : g[v]){
					if(u != p){
						dis[u] = dis[v] + 1;
						pr[u] = v;
						q.push({u,v});
					}
				}
			}
			vector<int> ans(n + 1);
			for(int i = l + 1;i <= r;i++){
				int y = c1[i];
				while(y != c1[l] && !ans[y]){
					ans[y] = 1;
					y = pr[y];
				}
			}
			int cnt = 0;
			for(int i = 1;i <= n;i++){
				cnt += ans[i];
			}
			cout<<cnt + 1<<"\n";
			
			
		}
	
	}
	else{
		build(1,m,1);
		while(q--){
			int l,r;
			cin >> l >> r;
			auto [ans1,ans2] = get(l,r,1,1,m);
			cout << ans1 - ans2 + 1 << "\n";
		}
	}
 
}
 
signed main() {
	
	ios_base::sync_with_stdio(0);
	cin.tie(NULL);
	cout.tie(NULL);
	
	int t = 1;
//	cin >> t;
	while(t--){
		solve();
	}
 
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6236 KB Output is correct
2 Correct 1 ms 6236 KB Output is correct
3 Correct 2 ms 6236 KB Output is correct
4 Correct 2 ms 6236 KB Output is correct
5 Correct 2 ms 6236 KB Output is correct
6 Correct 2 ms 6236 KB Output is correct
7 Correct 2 ms 6236 KB Output is correct
8 Correct 2 ms 6236 KB Output is correct
9 Correct 3 ms 6236 KB Output is correct
10 Correct 3 ms 6236 KB Output is correct
11 Correct 3 ms 6236 KB Output is correct
12 Correct 3 ms 6232 KB Output is correct
13 Correct 4 ms 6400 KB Output is correct
14 Correct 2 ms 6236 KB Output is correct
15 Correct 3 ms 6236 KB Output is correct
16 Correct 3 ms 6236 KB Output is correct
17 Correct 3 ms 6236 KB Output is correct
18 Correct 3 ms 6232 KB Output is correct
19 Correct 3 ms 6236 KB Output is correct
20 Correct 4 ms 6236 KB Output is correct
21 Correct 2 ms 6232 KB Output is correct
22 Correct 3 ms 6488 KB Output is correct
23 Correct 2 ms 6232 KB Output is correct
24 Correct 2 ms 6236 KB Output is correct
25 Correct 3 ms 6236 KB Output is correct
26 Correct 2 ms 6236 KB Output is correct
27 Correct 2 ms 6236 KB Output is correct
28 Correct 2 ms 6236 KB Output is correct
29 Correct 3 ms 6236 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6236 KB Output is correct
2 Correct 1 ms 6236 KB Output is correct
3 Correct 2 ms 6236 KB Output is correct
4 Correct 2 ms 6236 KB Output is correct
5 Correct 2 ms 6236 KB Output is correct
6 Correct 2 ms 6236 KB Output is correct
7 Correct 2 ms 6236 KB Output is correct
8 Correct 2 ms 6236 KB Output is correct
9 Correct 3 ms 6236 KB Output is correct
10 Correct 3 ms 6236 KB Output is correct
11 Correct 3 ms 6236 KB Output is correct
12 Correct 3 ms 6232 KB Output is correct
13 Correct 4 ms 6400 KB Output is correct
14 Correct 2 ms 6236 KB Output is correct
15 Correct 3 ms 6236 KB Output is correct
16 Correct 3 ms 6236 KB Output is correct
17 Correct 3 ms 6236 KB Output is correct
18 Correct 3 ms 6232 KB Output is correct
19 Correct 3 ms 6236 KB Output is correct
20 Correct 4 ms 6236 KB Output is correct
21 Correct 2 ms 6232 KB Output is correct
22 Correct 3 ms 6488 KB Output is correct
23 Correct 2 ms 6232 KB Output is correct
24 Correct 2 ms 6236 KB Output is correct
25 Correct 3 ms 6236 KB Output is correct
26 Correct 2 ms 6236 KB Output is correct
27 Correct 2 ms 6236 KB Output is correct
28 Correct 2 ms 6236 KB Output is correct
29 Correct 3 ms 6236 KB Output is correct
30 Correct 32 ms 6236 KB Output is correct
31 Correct 42 ms 6236 KB Output is correct
32 Correct 71 ms 6748 KB Output is correct
33 Correct 69 ms 6492 KB Output is correct
34 Correct 66 ms 6492 KB Output is correct
35 Correct 70 ms 6492 KB Output is correct
36 Correct 70 ms 6512 KB Output is correct
37 Correct 70 ms 6492 KB Output is correct
38 Correct 55 ms 6488 KB Output is correct
39 Correct 51 ms 6488 KB Output is correct
40 Correct 51 ms 6492 KB Output is correct
41 Correct 55 ms 6492 KB Output is correct
42 Correct 65 ms 6492 KB Output is correct
43 Correct 58 ms 6488 KB Output is correct
44 Correct 44 ms 6488 KB Output is correct
45 Correct 69 ms 6236 KB Output is correct
46 Correct 60 ms 6488 KB Output is correct
47 Correct 43 ms 6488 KB Output is correct
48 Correct 43 ms 6488 KB Output is correct
49 Correct 44 ms 6496 KB Output is correct
50 Correct 33 ms 6492 KB Output is correct
51 Correct 33 ms 6492 KB Output is correct
52 Correct 33 ms 6492 KB Output is correct
53 Correct 33 ms 6532 KB Output is correct
54 Correct 34 ms 6520 KB Output is correct
55 Correct 35 ms 6536 KB Output is correct
56 Correct 4 ms 6388 KB Output is correct
57 Correct 31 ms 6492 KB Output is correct
58 Correct 54 ms 6508 KB Output is correct

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6236 KB Output is correct
2 Correct 2 ms 6320 KB Output is correct
3 Correct 3 ms 6236 KB Output is correct
4 Correct 50 ms 12676 KB Output is correct
5 Correct 48 ms 11344 KB Output is correct
6 Correct 57 ms 13648 KB Output is correct
7 Correct 79 ms 14376 KB Output is correct
8 Correct 79 ms 14156 KB Output is correct
9 Correct 69 ms 14236 KB Output is correct
10 Correct 68 ms 14376 KB Output is correct
11 Correct 90 ms 14364 KB Output is correct
12 Correct 61 ms 14152 KB Output is correct
13 Correct 60 ms 14160 KB Output is correct
14 Correct 60 ms 14264 KB Output is correct
15 Correct 32 ms 9472 KB Output is correct
16 Correct 57 ms 13916 KB Output is correct
17 Correct 2184 ms 6532 KB Output is correct

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 6232 KB Output is correct
2 Incorrect 18 ms 10588 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6232 KB Output is correct
2 Correct 2 ms 6236 KB Output is correct
3 Correct 3 ms 6236 KB Output is correct
4 Incorrect 58 ms 13380 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6236 KB Output is correct
2 Correct 1 ms 6236 KB Output is correct
3 Correct 2 ms 6236 KB Output is correct
4 Correct 2 ms 6236 KB Output is correct
5 Correct 2 ms 6236 KB Output is correct
6 Correct 2 ms 6236 KB Output is correct
7 Correct 2 ms 6236 KB Output is correct
8 Correct 2 ms 6236 KB Output is correct
9 Correct 3 ms 6236 KB Output is correct
10 Correct 3 ms 6236 KB Output is correct
11 Correct 3 ms 6236 KB Output is correct
12 Correct 3 ms 6232 KB Output is correct
13 Correct 4 ms 6400 KB Output is correct
14 Correct 2 ms 6236 KB Output is correct
15 Correct 3 ms 6236 KB Output is correct
16 Correct 3 ms 6236 KB Output is correct
17 Correct 3 ms 6236 KB Output is correct
18 Correct 3 ms 6232 KB Output is correct
19 Correct 3 ms 6236 KB Output is correct
20 Correct 4 ms 6236 KB Output is correct
21 Correct 2 ms 6232 KB Output is correct
22 Correct 3 ms 6488 KB Output is correct
23 Correct 2 ms 6232 KB Output is correct
24 Correct 2 ms 6236 KB Output is correct
25 Correct 3 ms 6236 KB Output is correct
26 Correct 2 ms 6236 KB Output is correct
27 Correct 2 ms 6236 KB Output is correct
28 Correct 2 ms 6236 KB Output is correct
29 Correct 3 ms 6236 KB Output is correct
30 Correct 32 ms 6236 KB Output is correct
31 Correct 42 ms 6236 KB Output is correct
32 Correct 71 ms 6748 KB Output is correct
33 Correct 69 ms 6492 KB Output is correct
34 Correct 66 ms 6492 KB Output is correct
35 Correct 70 ms 6492 KB Output is correct
36 Correct 70 ms 6512 KB Output is correct
37 Correct 70 ms 6492 KB Output is correct
38 Correct 55 ms 6488 KB Output is correct
39 Correct 51 ms 6488 KB Output is correct
40 Correct 51 ms 6492 KB Output is correct
41 Correct 55 ms 6492 KB Output is correct
42 Correct 65 ms 6492 KB Output is correct
43 Correct 58 ms 6488 KB Output is correct
44 Correct 44 ms 6488 KB Output is correct
45 Correct 69 ms 6236 KB Output is correct
46 Correct 60 ms 6488 KB Output is correct
47 Correct 43 ms 6488 KB Output is correct
48 Correct 43 ms 6488 KB Output is correct
49 Correct 44 ms 6496 KB Output is correct
50 Correct 33 ms 6492 KB Output is correct
51 Correct 33 ms 6492 KB Output is correct
52 Correct 33 ms 6492 KB Output is correct
53 Correct 33 ms 6532 KB Output is correct
54 Correct 34 ms 6520 KB Output is correct
55 Correct 35 ms 6536 KB Output is correct
56 Correct 4 ms 6388 KB Output is correct
57 Correct 31 ms 6492 KB Output is correct
58 Correct 54 ms 6508 KB Output is correct
59 Correct 2 ms 6236 KB Output is correct
60 Correct 2 ms 6320 KB Output is correct
61 Correct 3 ms 6236 KB Output is correct
62 Correct 50 ms 12676 KB Output is correct
63 Correct 48 ms 11344 KB Output is correct
64 Correct 57 ms 13648 KB Output is correct
65 Correct 79 ms 14376 KB Output is correct
66 Correct 79 ms 14156 KB Output is correct
67 Correct 69 ms 14236 KB Output is correct
68 Correct 68 ms 14376 KB Output is correct
69 Correct 90 ms 14364 KB Output is correct
70 Correct 61 ms 14152 KB Output is correct
71 Correct 60 ms 14160 KB Output is correct
72 Correct 60 ms 14264 KB Output is correct
73 Correct 32 ms 9472 KB Output is correct
74 Correct 57 ms 13916 KB Output is correct
75 Correct 2184 ms 6532 KB Output is correct
76 Correct 1 ms 6232 KB Output is correct
77 Incorrect 18 ms 10588 KB Output isn't correct
78 Halted 0 ms 0 KB -