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답안 #387861

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
387861 2021-04-09T10:14:44 Z oolimry Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 435 ms 101808 KB 
#include <bits/stdc++.h>
using namespace std;
#define all(x) (x).begin(), (x).end()
#define sz(x) ((int) x.size())
#define show(x) cerr << #x << " is " << x << endl;
#define show2(x, y) cerr << #x << " is " << x << ", " << #y << " is " << y << endl;
typedef long long lint;
typedef pair<lint, lint> ii;

int p[200005];
int vis[200005];

vector<int> adj[200005];
map<int, lint> dp[200005];
lint cost[200005];
lint original[200005];

void dfs(int u){
	for(int v : adj[u]){
		dfs(v);
		
		if(sz(dp[u]) < sz(dp[v])) swap(dp[u], dp[v]);
		
		map<int, lint> &cur = dp[u];
		
		for(ii x : dp[v]){
			if(cur.count(x.first)) cur[x.first] += x.second;
			else cur[x.first] = x.second;
		}
	}
	
	
	lint O = original[u]; lint C = cost[u];
	map<int, lint> &cur = dp[u];
	if(cur.count(O)) cur[O] += C ;
	else cur[O] = C;
	
	while(true){
		auto it = cur.upper_bound(O);
		if(it == cur.end()) break;
		if(it->second > C){
			it->second -= C;
			break;
		}
		else{
			C -= it->second;
			cur.erase(it);
		}
	}
}

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
	
	lint ans = 0;
	int n; cin >> n;
	for(int i = 1;i <= n;i++){
		cin >> p[i] >> original[i] >> cost[i];
		ans += cost[i];
	}
	
	for(int s = 1;s <= n;s++){
		int u = s;
		int cycle = -1;
		
		while(true){
			if(vis[u] != 0){
				if(vis[u] == s) cycle = u;
				break;
			}
			vis[u] = s;
			u = p[u];
		}
		
		if(cycle == -1) continue;
		
		vector<ii> nodes = {ii(1e9+1,0)};
		u = cycle;
		while(true){
			nodes.push_back(ii(original[u], u));
			u = p[u];
			if(u == cycle) break;
		}
				
		sort(all(nodes));
		for(int i = 0;i < sz(nodes)-1;i++){
			p[nodes[i].second] = nodes[i+1].second;
		}
	}
	
	for(int i = 1;i <= n;i++) adj[p[i]].push_back(i);
	
	for(int i = 0;i <= n;i++) original[i] *= -1;
	dfs(0);
	for(ii x : dp[0]) ans -= x.second;
	
	cout << ans;
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 14412 KB Output is correct
2 Correct 9 ms 14412 KB Output is correct
3 Correct 9 ms 14412 KB Output is correct
4 Correct 9 ms 14412 KB Output is correct
5 Correct 16 ms 15540 KB Output is correct
6 Correct 14 ms 15144 KB Output is correct
7 Correct 13 ms 14948 KB Output is correct
8 Correct 16 ms 15604 KB Output is correct
9 Correct 14 ms 15144 KB Output is correct
10 Correct 13 ms 14924 KB Output is correct
11 Correct 12 ms 14672 KB Output is correct
12 Correct 13 ms 15308 KB Output is correct
13 Correct 11 ms 15288 KB Output is correct
14 Correct 13 ms 14924 KB Output is correct
15 Correct 12 ms 14924 KB Output is correct
16 Correct 16 ms 15948 KB Output is correct
17 Correct 14 ms 15308 KB Output is correct
18 Correct 11 ms 14668 KB Output is correct
19 Correct 13 ms 15184 KB Output is correct
20 Correct 12 ms 15096 KB Output is correct
21 Correct 12 ms 15076 KB Output is correct
22 Correct 12 ms 15092 KB Output is correct
23 Correct 11 ms 14796 KB Output is correct
24 Correct 13 ms 15180 KB Output is correct
25 Correct 12 ms 15052 KB Output is correct
26 Correct 11 ms 15296 KB Output is correct
27 Correct 13 ms 15308 KB Output is correct
28 Correct 13 ms 15308 KB Output is correct
29 Correct 12 ms 15436 KB Output is correct
30 Correct 13 ms 15432 KB Output is correct
31 Correct 13 ms 15452 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 15564 KB Output is correct
2 Correct 435 ms 76660 KB Output is correct
3 Correct 314 ms 51780 KB Output is correct
4 Correct 431 ms 73744 KB Output is correct
5 Correct 318 ms 51832 KB Output is correct
6 Correct 207 ms 32872 KB Output is correct
7 Correct 191 ms 28484 KB Output is correct
8 Correct 174 ms 50368 KB Output is correct
9 Correct 158 ms 50372 KB Output is correct
10 Correct 117 ms 50484 KB Output is correct
11 Correct 171 ms 38212 KB Output is correct
12 Correct 155 ms 37828 KB Output is correct
13 Correct 424 ms 101808 KB Output is correct
14 Correct 286 ms 66092 KB Output is correct
15 Correct 99 ms 28424 KB Output is correct
16 Correct 300 ms 47908 KB Output is correct
17 Correct 147 ms 41044 KB Output is correct
18 Correct 106 ms 40948 KB Output is correct
19 Correct 353 ms 44988 KB Output is correct
20 Correct 118 ms 32576 KB Output is correct
21 Correct 316 ms 48572 KB Output is correct
22 Correct 136 ms 41404 KB Output is correct
23 Correct 119 ms 50488 KB Output is correct
24 Correct 236 ms 50372 KB Output is correct
25 Correct 206 ms 55632 KB Output is correct
26 Correct 194 ms 58228 KB Output is correct
27 Correct 238 ms 56516 KB Output is correct
28 Correct 234 ms 56564 KB Output is correct

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 14412 KB Output is correct
2 Correct 9 ms 14412 KB Output is correct
3 Correct 9 ms 14412 KB Output is correct
4 Correct 9 ms 14412 KB Output is correct
5 Correct 16 ms 15540 KB Output is correct
6 Correct 14 ms 15144 KB Output is correct
7 Correct 13 ms 14948 KB Output is correct
8 Correct 16 ms 15604 KB Output is correct
9 Correct 14 ms 15144 KB Output is correct
10 Correct 13 ms 14924 KB Output is correct
11 Correct 12 ms 14672 KB Output is correct
12 Correct 13 ms 15308 KB Output is correct
13 Correct 11 ms 15288 KB Output is correct
14 Correct 13 ms 14924 KB Output is correct
15 Correct 12 ms 14924 KB Output is correct
16 Correct 16 ms 15948 KB Output is correct
17 Correct 14 ms 15308 KB Output is correct
18 Correct 11 ms 14668 KB Output is correct
19 Correct 13 ms 15184 KB Output is correct
20 Correct 12 ms 15096 KB Output is correct
21 Correct 12 ms 15076 KB Output is correct
22 Correct 12 ms 15092 KB Output is correct
23 Correct 11 ms 14796 KB Output is correct
24 Correct 13 ms 15180 KB Output is correct
25 Correct 12 ms 15052 KB Output is correct
26 Correct 11 ms 15296 KB Output is correct
27 Correct 13 ms 15308 KB Output is correct
28 Correct 13 ms 15308 KB Output is correct
29 Correct 12 ms 15436 KB Output is correct
30 Correct 13 ms 15432 KB Output is correct
31 Correct 13 ms 15452 KB Output is correct
32 Correct 15 ms 15564 KB Output is correct
33 Correct 435 ms 76660 KB Output is correct
34 Correct 314 ms 51780 KB Output is correct
35 Correct 431 ms 73744 KB Output is correct
36 Correct 318 ms 51832 KB Output is correct
37 Correct 207 ms 32872 KB Output is correct
38 Correct 191 ms 28484 KB Output is correct
39 Correct 174 ms 50368 KB Output is correct
40 Correct 158 ms 50372 KB Output is correct
41 Correct 117 ms 50484 KB Output is correct
42 Correct 171 ms 38212 KB Output is correct
43 Correct 155 ms 37828 KB Output is correct
44 Correct 424 ms 101808 KB Output is correct
45 Correct 286 ms 66092 KB Output is correct
46 Correct 99 ms 28424 KB Output is correct
47 Correct 300 ms 47908 KB Output is correct
48 Correct 147 ms 41044 KB Output is correct
49 Correct 106 ms 40948 KB Output is correct
50 Correct 353 ms 44988 KB Output is correct
51 Correct 118 ms 32576 KB Output is correct
52 Correct 316 ms 48572 KB Output is correct
53 Correct 136 ms 41404 KB Output is correct
54 Correct 119 ms 50488 KB Output is correct
55 Correct 236 ms 50372 KB Output is correct
56 Correct 206 ms 55632 KB Output is correct
57 Correct 194 ms 58228 KB Output is correct
58 Correct 238 ms 56516 KB Output is correct
59 Correct 234 ms 56564 KB Output is correct
60 Correct 9 ms 14420 KB Output is correct
61 Correct 10 ms 14344 KB Output is correct
62 Correct 9 ms 14420 KB Output is correct
63 Correct 9 ms 14412 KB Output is correct
64 Incorrect 410 ms 66924 KB Output isn't correct
65 Halted 0 ms 0 KB -