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답안 #1098659

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1098659 2024-10-09T16:23:19 Z flyingkite Tourism (JOI23_tourism) C++17
100 / 100
 995 ms 37764 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define pll pair<long long, long long>
#define pb push_back
#define F first
#define S second  
#define all(x) (x).begin(), (x).end()
 
const ll N = 3e5 + 100;
const ll inf = 1e18;
const ll mod = 1e9 + 7;
const ll block = 350;
ll n,m,q,timer = 0;
vector<ll>adj[N];
ll tin[N], heavy[N], sz[N], p[N], head[N], res[N], a[N];
vector<pll>t[N];
set<array<ll,3>>s;
struct fenwick_tree{
	ll n;
	vector<ll>ft;
	void init(ll _n){
		n = _n;
		ft.resize(n + 10);
	}
	void update(ll idx, ll val){
		while(idx <= n) ft[idx] += val, idx += (idx & (-idx));
	}
	ll get(ll idx){
		ll res = 0;
		while(idx > 0) res += ft[idx], idx -= (idx & (-idx));
		return res;
	}
} ft;
void dfs(ll u, ll par){
    sz[u] = 1;
    for(auto v : adj[u]){
        if(v == par) continue;
        dfs(v, u);
        p[v] = u;
        sz[u] += sz[v];
        if(sz[v] > sz[heavy[u]]) heavy[u] = v;
    }
}
void HLD(ll u, ll h){
    head[u] = h; tin[u] = ++timer;
    if(heavy[u]) HLD(heavy[u], h);
    for(auto v : adj[u]){
        if(v != p[u] && v != heavy[u]) HLD(v, v);
    }
}
void change(ll l, ll r, ll val){
	auto it = s.lower_bound({l, l, 0});
	if(it != s.begin()) --it;
	vector<array<ll,3>>del, add;
	add.pb({l, r, val});
	while(it != s.end() && (*it)[0] <= r){
		ll l1 = (*it)[0], r1 = (*it)[1], v1 = (*it)[2];
		if(r1 < l){
			++it;
			continue;
		}
		del.pb(*it);
		if(l1 < l) add.pb({l1, l - 1, v1});
		if(r1 > r) add.pb({r + 1, r1, v1});
		++it;
	}
	for(auto x : del){
		ft.update(x[2], -(x[1] - x[0] + 1));
		s.erase(x);
	}
	for(auto x : add){
		ft.update(x[2], x[1] - x[0] + 1);
		s.insert(x);
	}
}
void upd(ll a, ll b, ll val){
    for(; head[a] != head[b]; b = p[head[b]]){
        if(tin[a] > tin[b]) swap(a, b);
        change(tin[head[b]], tin[b], val);
    }
    if(tin[a] > tin[b]) swap(a, b);
   	change(tin[a], tin[b], val);
}
void to_thic_cau(){
	cin >> n >> m >> q;
	for(int i = 1; i <= n - 1;i++){
		ll u,v; cin >> u >> v;
		adj[u].pb(v); adj[v].pb(u);
	}
	dfs(1, 0);	
	HLD(1, 1);
	for(int i = 1; i <= m;i++) cin >> a[i];
	for(int i = 1; i <= q;i++){
		ll l,r; cin >> l >> r;
		t[r].pb({l, i});
	}
	s.insert({1, n, 1});
	ft.init(m);
	ft.update(1, m);
	for(int i = 1; i <= m;i++){
		if(i > 1) upd(a[i-1], a[i], i);
		for(auto x : t[i]){
			ll l = x.F, idx = x.S;
			if(l == i){
				res[idx] = 1;
				continue;
			}
			res[idx] = ft.get(i) - ft.get(l);
		}
	}
	for(int i = 1; i <= q;i++) cout << res[i] << '\n';
	
}
 
signed main()   
{ 
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	ll tc = 1;
	//cin >> tc;
	while(tc--) to_thic_cau();
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14428 KB Output is correct
2 Correct 5 ms 14604 KB Output is correct
3 Correct 6 ms 14608 KB Output is correct
4 Correct 9 ms 14428 KB Output is correct
5 Correct 6 ms 14572 KB Output is correct
6 Correct 6 ms 14428 KB Output is correct
7 Correct 6 ms 14428 KB Output is correct
8 Correct 6 ms 14644 KB Output is correct
9 Correct 10 ms 14428 KB Output is correct
10 Correct 10 ms 14428 KB Output is correct
11 Correct 8 ms 14428 KB Output is correct
12 Correct 11 ms 14668 KB Output is correct
13 Correct 9 ms 14592 KB Output is correct
14 Correct 8 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 7 ms 14448 KB Output is correct
17 Correct 7 ms 14428 KB Output is correct
18 Correct 8 ms 14428 KB Output is correct
19 Correct 10 ms 14664 KB Output is correct
20 Correct 8 ms 14428 KB Output is correct
21 Correct 7 ms 14428 KB Output is correct
22 Correct 10 ms 14428 KB Output is correct
23 Correct 12 ms 14428 KB Output is correct
24 Correct 7 ms 14428 KB Output is correct
25 Correct 7 ms 14428 KB Output is correct
26 Correct 10 ms 14428 KB Output is correct
27 Correct 7 ms 14428 KB Output is correct
28 Correct 8 ms 14428 KB Output is correct
29 Correct 9 ms 14428 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14428 KB Output is correct
2 Correct 5 ms 14604 KB Output is correct
3 Correct 6 ms 14608 KB Output is correct
4 Correct 9 ms 14428 KB Output is correct
5 Correct 6 ms 14572 KB Output is correct
6 Correct 6 ms 14428 KB Output is correct
7 Correct 6 ms 14428 KB Output is correct
8 Correct 6 ms 14644 KB Output is correct
9 Correct 10 ms 14428 KB Output is correct
10 Correct 10 ms 14428 KB Output is correct
11 Correct 8 ms 14428 KB Output is correct
12 Correct 11 ms 14668 KB Output is correct
13 Correct 9 ms 14592 KB Output is correct
14 Correct 8 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 7 ms 14448 KB Output is correct
17 Correct 7 ms 14428 KB Output is correct
18 Correct 8 ms 14428 KB Output is correct
19 Correct 10 ms 14664 KB Output is correct
20 Correct 8 ms 14428 KB Output is correct
21 Correct 7 ms 14428 KB Output is correct
22 Correct 10 ms 14428 KB Output is correct
23 Correct 12 ms 14428 KB Output is correct
24 Correct 7 ms 14428 KB Output is correct
25 Correct 7 ms 14428 KB Output is correct
26 Correct 10 ms 14428 KB Output is correct
27 Correct 7 ms 14428 KB Output is correct
28 Correct 8 ms 14428 KB Output is correct
29 Correct 9 ms 14428 KB Output is correct
30 Correct 15 ms 14680 KB Output is correct
31 Correct 13 ms 14820 KB Output is correct
32 Correct 19 ms 14940 KB Output is correct
33 Correct 13 ms 14940 KB Output is correct
34 Correct 12 ms 14940 KB Output is correct
35 Correct 13 ms 14940 KB Output is correct
36 Correct 12 ms 14940 KB Output is correct
37 Correct 13 ms 14940 KB Output is correct
38 Correct 12 ms 14824 KB Output is correct
39 Correct 8 ms 14940 KB Output is correct
40 Correct 7 ms 14988 KB Output is correct
41 Correct 7 ms 14940 KB Output is correct
42 Correct 7 ms 14940 KB Output is correct
43 Correct 7 ms 14940 KB Output is correct
44 Correct 9 ms 14820 KB Output is correct
45 Correct 15 ms 14940 KB Output is correct
46 Correct 11 ms 14936 KB Output is correct
47 Correct 11 ms 14936 KB Output is correct
48 Correct 11 ms 14940 KB Output is correct
49 Correct 15 ms 14936 KB Output is correct
50 Correct 10 ms 14936 KB Output is correct
51 Correct 13 ms 14816 KB Output is correct
52 Correct 15 ms 14896 KB Output is correct
53 Correct 11 ms 14940 KB Output is correct
54 Correct 16 ms 14816 KB Output is correct
55 Correct 9 ms 14940 KB Output is correct
56 Correct 9 ms 14936 KB Output is correct
57 Correct 10 ms 14768 KB Output is correct
58 Correct 13 ms 14948 KB Output is correct

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 14516 KB Output is correct
2 Correct 9 ms 14424 KB Output is correct
3 Correct 10 ms 14684 KB Output is correct
4 Correct 96 ms 29064 KB Output is correct
5 Correct 79 ms 32084 KB Output is correct
6 Correct 104 ms 33876 KB Output is correct
7 Correct 175 ms 37716 KB Output is correct
8 Correct 130 ms 37716 KB Output is correct
9 Correct 155 ms 37760 KB Output is correct
10 Correct 121 ms 37752 KB Output is correct
11 Correct 122 ms 37764 KB Output is correct
12 Correct 109 ms 37748 KB Output is correct
13 Correct 115 ms 37712 KB Output is correct
14 Correct 110 ms 37700 KB Output is correct
15 Correct 40 ms 33472 KB Output is correct
16 Correct 109 ms 37468 KB Output is correct
17 Correct 74 ms 20952 KB Output is correct

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14424 KB Output is correct
2 Correct 259 ms 22748 KB Output is correct
3 Correct 422 ms 24320 KB Output is correct
4 Correct 367 ms 24704 KB Output is correct
5 Correct 634 ms 29640 KB Output is correct
6 Correct 620 ms 29524 KB Output is correct
7 Correct 602 ms 29520 KB Output is correct
8 Correct 620 ms 29600 KB Output is correct
9 Correct 656 ms 29668 KB Output is correct
10 Correct 610 ms 29588 KB Output is correct
11 Correct 594 ms 29760 KB Output is correct
12 Correct 591 ms 29924 KB Output is correct
13 Correct 545 ms 30204 KB Output is correct
14 Correct 578 ms 31180 KB Output is correct
15 Correct 627 ms 34804 KB Output is correct
16 Correct 664 ms 30156 KB Output is correct
17 Correct 601 ms 30280 KB Output is correct
18 Correct 582 ms 30296 KB Output is correct
19 Correct 324 ms 25388 KB Output is correct
20 Correct 318 ms 25284 KB Output is correct
21 Correct 320 ms 25164 KB Output is correct
22 Correct 316 ms 25236 KB Output is correct
23 Correct 324 ms 25172 KB Output is correct
24 Correct 324 ms 25200 KB Output is correct
25 Correct 322 ms 25224 KB Output is correct
26 Correct 340 ms 25172 KB Output is correct
27 Correct 333 ms 25172 KB Output is correct
28 Correct 325 ms 25308 KB Output is correct
29 Correct 344 ms 25428 KB Output is correct
30 Correct 377 ms 25864 KB Output is correct
31 Correct 334 ms 25684 KB Output is correct
32 Correct 331 ms 26256 KB Output is correct
33 Correct 343 ms 28004 KB Output is correct
34 Correct 354 ms 30520 KB Output is correct

Subtask #5
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 14428 KB Output is correct
2 Correct 5 ms 14560 KB Output is correct
3 Correct 10 ms 14684 KB Output is correct
4 Correct 733 ms 28764 KB Output is correct
5 Correct 792 ms 29016 KB Output is correct
6 Correct 893 ms 32996 KB Output is correct
7 Correct 927 ms 35120 KB Output is correct
8 Correct 914 ms 35156 KB Output is correct
9 Correct 923 ms 35108 KB Output is correct
10 Correct 892 ms 35152 KB Output is correct
11 Correct 975 ms 35064 KB Output is correct
12 Correct 995 ms 35036 KB Output is correct
13 Correct 976 ms 35064 KB Output is correct
14 Correct 56 ms 20904 KB Output is correct

Subtask #6
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14428 KB Output is correct
2 Correct 5 ms 14604 KB Output is correct
3 Correct 6 ms 14608 KB Output is correct
4 Correct 9 ms 14428 KB Output is correct
5 Correct 6 ms 14572 KB Output is correct
6 Correct 6 ms 14428 KB Output is correct
7 Correct 6 ms 14428 KB Output is correct
8 Correct 6 ms 14644 KB Output is correct
9 Correct 10 ms 14428 KB Output is correct
10 Correct 10 ms 14428 KB Output is correct
11 Correct 8 ms 14428 KB Output is correct
12 Correct 11 ms 14668 KB Output is correct
13 Correct 9 ms 14592 KB Output is correct
14 Correct 8 ms 14424 KB Output is correct
15 Correct 6 ms 14424 KB Output is correct
16 Correct 7 ms 14448 KB Output is correct
17 Correct 7 ms 14428 KB Output is correct
18 Correct 8 ms 14428 KB Output is correct
19 Correct 10 ms 14664 KB Output is correct
20 Correct 8 ms 14428 KB Output is correct
21 Correct 7 ms 14428 KB Output is correct
22 Correct 10 ms 14428 KB Output is correct
23 Correct 12 ms 14428 KB Output is correct
24 Correct 7 ms 14428 KB Output is correct
25 Correct 7 ms 14428 KB Output is correct
26 Correct 10 ms 14428 KB Output is correct
27 Correct 7 ms 14428 KB Output is correct
28 Correct 8 ms 14428 KB Output is correct
29 Correct 9 ms 14428 KB Output is correct
30 Correct 15 ms 14680 KB Output is correct
31 Correct 13 ms 14820 KB Output is correct
32 Correct 19 ms 14940 KB Output is correct
33 Correct 13 ms 14940 KB Output is correct
34 Correct 12 ms 14940 KB Output is correct
35 Correct 13 ms 14940 KB Output is correct
36 Correct 12 ms 14940 KB Output is correct
37 Correct 13 ms 14940 KB Output is correct
38 Correct 12 ms 14824 KB Output is correct
39 Correct 8 ms 14940 KB Output is correct
40 Correct 7 ms 14988 KB Output is correct
41 Correct 7 ms 14940 KB Output is correct
42 Correct 7 ms 14940 KB Output is correct
43 Correct 7 ms 14940 KB Output is correct
44 Correct 9 ms 14820 KB Output is correct
45 Correct 15 ms 14940 KB Output is correct
46 Correct 11 ms 14936 KB Output is correct
47 Correct 11 ms 14936 KB Output is correct
48 Correct 11 ms 14940 KB Output is correct
49 Correct 15 ms 14936 KB Output is correct
50 Correct 10 ms 14936 KB Output is correct
51 Correct 13 ms 14816 KB Output is correct
52 Correct 15 ms 14896 KB Output is correct
53 Correct 11 ms 14940 KB Output is correct
54 Correct 16 ms 14816 KB Output is correct
55 Correct 9 ms 14940 KB Output is correct
56 Correct 9 ms 14936 KB Output is correct
57 Correct 10 ms 14768 KB Output is correct
58 Correct 13 ms 14948 KB Output is correct
59 Correct 9 ms 14516 KB Output is correct
60 Correct 9 ms 14424 KB Output is correct
61 Correct 10 ms 14684 KB Output is correct
62 Correct 96 ms 29064 KB Output is correct
63 Correct 79 ms 32084 KB Output is correct
64 Correct 104 ms 33876 KB Output is correct
65 Correct 175 ms 37716 KB Output is correct
66 Correct 130 ms 37716 KB Output is correct
67 Correct 155 ms 37760 KB Output is correct
68 Correct 121 ms 37752 KB Output is correct
69 Correct 122 ms 37764 KB Output is correct
70 Correct 109 ms 37748 KB Output is correct
71 Correct 115 ms 37712 KB Output is correct
72 Correct 110 ms 37700 KB Output is correct
73 Correct 40 ms 33472 KB Output is correct
74 Correct 109 ms 37468 KB Output is correct
75 Correct 74 ms 20952 KB Output is correct
76 Correct 6 ms 14424 KB Output is correct
77 Correct 259 ms 22748 KB Output is correct
78 Correct 422 ms 24320 KB Output is correct
79 Correct 367 ms 24704 KB Output is correct
80 Correct 634 ms 29640 KB Output is correct
81 Correct 620 ms 29524 KB Output is correct
82 Correct 602 ms 29520 KB Output is correct
83 Correct 620 ms 29600 KB Output is correct
84 Correct 656 ms 29668 KB Output is correct
85 Correct 610 ms 29588 KB Output is correct
86 Correct 594 ms 29760 KB Output is correct
87 Correct 591 ms 29924 KB Output is correct
88 Correct 545 ms 30204 KB Output is correct
89 Correct 578 ms 31180 KB Output is correct
90 Correct 627 ms 34804 KB Output is correct
91 Correct 664 ms 30156 KB Output is correct
92 Correct 601 ms 30280 KB Output is correct
93 Correct 582 ms 30296 KB Output is correct
94 Correct 324 ms 25388 KB Output is correct
95 Correct 318 ms 25284 KB Output is correct
96 Correct 320 ms 25164 KB Output is correct
97 Correct 316 ms 25236 KB Output is correct
98 Correct 324 ms 25172 KB Output is correct
99 Correct 324 ms 25200 KB Output is correct
100 Correct 322 ms 25224 KB Output is correct
101 Correct 340 ms 25172 KB Output is correct
102 Correct 333 ms 25172 KB Output is correct
103 Correct 325 ms 25308 KB Output is correct
104 Correct 344 ms 25428 KB Output is correct
105 Correct 377 ms 25864 KB Output is correct
106 Correct 334 ms 25684 KB Output is correct
107 Correct 331 ms 26256 KB Output is correct
108 Correct 343 ms 28004 KB Output is correct
109 Correct 354 ms 30520 KB Output is correct
110 Correct 5 ms 14428 KB Output is correct
111 Correct 5 ms 14560 KB Output is correct
112 Correct 10 ms 14684 KB Output is correct
113 Correct 733 ms 28764 KB Output is correct
114 Correct 792 ms 29016 KB Output is correct
115 Correct 893 ms 32996 KB Output is correct
116 Correct 927 ms 35120 KB Output is correct
117 Correct 914 ms 35156 KB Output is correct
118 Correct 923 ms 35108 KB Output is correct
119 Correct 892 ms 35152 KB Output is correct
120 Correct 975 ms 35064 KB Output is correct
121 Correct 995 ms 35036 KB Output is correct
122 Correct 976 ms 35064 KB Output is correct
123 Correct 56 ms 20904 KB Output is correct
124 Correct 538 ms 34224 KB Output is correct
125 Correct 415 ms 31124 KB Output is correct
126 Correct 644 ms 34896 KB Output is correct
127 Correct 598 ms 34684 KB Output is correct
128 Correct 606 ms 34896 KB Output is correct
129 Correct 570 ms 34760 KB Output is correct
130 Correct 625 ms 34684 KB Output is correct
131 Correct 129 ms 36688 KB Output is correct
132 Correct 143 ms 37712 KB Output is correct
133 Correct 143 ms 33932 KB Output is correct
134 Correct 360 ms 30548 KB Output is correct
135 Correct 387 ms 30548 KB Output is correct
136 Correct 355 ms 30456 KB Output is correct
137 Correct 235 ms 35496 KB Output is correct
138 Correct 261 ms 35356 KB Output is correct
139 Correct 289 ms 35508 KB Output is correct
140 Correct 280 ms 36032 KB Output is correct
141 Correct 301 ms 36156 KB Output is correct
142 Correct 267 ms 36008 KB Output is correct
143 Correct 53 ms 26308 KB Output is correct
144 Correct 634 ms 34388 KB Output is correct