oj.uz

Submission #720005

# Submission time Handle Problem Language Result Execution time Memory
720005 2023-04-07T08:35:46 Z mariowong Commuter Pass (JOI18_commuter_pass) C++14
100 / 100
 742 ms 25784 KB 
#include <bits/stdc++.h>

using namespace std;

vector <pair<int,long long>  > edge[100005];
long long dis[100005][8];
priority_queue <pair<long long,int>  > pq;
priority_queue <pair<pair<long long,long long>,int>  > pq2;
int a[8];
bool vis[100005];
int main(){
//	ios::sync_with_stdio(false);
	int n,m;
	cin >> n >> m >> a[1] >> a[2] >> a[3] >> a[4];
	for (int i=1;i<=m;i++){
		int u,v,w;
		cin >> u >> v >> w;
		edge[u].push_back({v,w});
		edge[v].push_back({u,w});
	}
	for (int i=1;i<=4;i++){
		for (int j=1;j<=n;j++) dis[j][i]=-1;
		pq.push({0,a[i]});
		while (!pq.empty()){
			long long d=-pq.top().first;
			int id=pq.top().second; pq.pop();
			if (dis[id][i] == -1){
				dis[id][i]=d;	
				for (auto j:edge[id]){
					if (dis[j.first][i] == -1) pq.push({-(d+j.second),j.first});	
				}
			}
		}
	}
//	cout << "hi\n";
	long long ans=dis[a[4]][3];
	pq2.push({{0,-1e18},a[1]});
	while (!pq2.empty()){
		long long d=-pq2.top().first.first,mn=-pq2.top().first.second;
		int id=pq2.top().second; pq2.pop();
		if (!vis[id]){
			vis[id]=true;
			mn=min(mn,dis[id][3]);
		//	cout << mn << " " << dis[id][4] << " " << id << "\n";
			if (dis[id][1]+dis[id][2] == dis[a[2]][1]) ans=min(ans,mn+dis[id][4]);
			for (auto j:edge[id]){
				if (!vis[j.first]) pq2.push({{-(d+j.second),-mn},j.first});
			}
		}
	}	
//	cout << ans << "\n";
	for (int i=1;i<=n;i++) vis[i]=false;
	pq2.push({{0,-1e18},a[1]});
	while (!pq2.empty()){
		long long d=-pq2.top().first.first,mn=-pq2.top().first.second;
		int id=pq2.top().second; pq2.pop();
		if (!vis[id]){
			vis[id]=true;
			mn=min(mn,dis[id][4]);
		//	cout << mn << " " << dis[id][4] << " " << id << "\n";
			if (dis[id][1]+dis[id][2] == dis[a[2]][1]) ans=min(ans,mn+dis[id][3]);
			for (auto j:edge[id]){
				if (!vis[j.first]) pq2.push({{-(d+j.second),-mn},j.first});
			}
		}
	}
	cout << ans << "\n";
	return 0;
}

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 651 ms 25784 KB Output is correct
2 Correct 597 ms 25276 KB Output is correct
3 Correct 601 ms 25320 KB Output is correct
4 Correct 659 ms 25408 KB Output is correct
5 Correct 601 ms 25152 KB Output is correct
6 Correct 649 ms 25704 KB Output is correct
7 Correct 576 ms 25304 KB Output is correct
8 Correct 580 ms 25224 KB Output is correct
9 Correct 644 ms 25312 KB Output is correct
10 Correct 575 ms 25256 KB Output is correct
11 Correct 239 ms 14120 KB Output is correct
12 Correct 602 ms 25276 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 589 ms 25452 KB Output is correct
2 Correct 624 ms 23776 KB Output is correct
3 Correct 719 ms 23580 KB Output is correct
4 Correct 742 ms 23740 KB Output is correct
5 Correct 616 ms 23756 KB Output is correct
6 Correct 650 ms 25312 KB Output is correct
7 Correct 643 ms 23516 KB Output is correct
8 Correct 599 ms 23612 KB Output is correct
9 Correct 630 ms 23516 KB Output is correct
10 Correct 613 ms 23588 KB Output is correct
11 Correct 233 ms 14156 KB Output is correct
12 Correct 611 ms 25268 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 4748 KB Output is correct
2 Correct 3 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 74 ms 6984 KB Output is correct
5 Correct 42 ms 5456 KB Output is correct
6 Correct 5 ms 2788 KB Output is correct
7 Correct 6 ms 2900 KB Output is correct
8 Correct 7 ms 2900 KB Output is correct
9 Correct 4 ms 2772 KB Output is correct
10 Correct 39 ms 4920 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 2 ms 2644 KB Output is correct
13 Correct 2 ms 2644 KB Output is correct
14 Correct 3 ms 2772 KB Output is correct
15 Correct 3 ms 2772 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 651 ms 25784 KB Output is correct
2 Correct 597 ms 25276 KB Output is correct
3 Correct 601 ms 25320 KB Output is correct
4 Correct 659 ms 25408 KB Output is correct
5 Correct 601 ms 25152 KB Output is correct
6 Correct 649 ms 25704 KB Output is correct
7 Correct 576 ms 25304 KB Output is correct
8 Correct 580 ms 25224 KB Output is correct
9 Correct 644 ms 25312 KB Output is correct
10 Correct 575 ms 25256 KB Output is correct
11 Correct 239 ms 14120 KB Output is correct
12 Correct 602 ms 25276 KB Output is correct
13 Correct 589 ms 25452 KB Output is correct
14 Correct 624 ms 23776 KB Output is correct
15 Correct 719 ms 23580 KB Output is correct
16 Correct 742 ms 23740 KB Output is correct
17 Correct 616 ms 23756 KB Output is correct
18 Correct 650 ms 25312 KB Output is correct
19 Correct 643 ms 23516 KB Output is correct
20 Correct 599 ms 23612 KB Output is correct
21 Correct 630 ms 23516 KB Output is correct
22 Correct 613 ms 23588 KB Output is correct
23 Correct 233 ms 14156 KB Output is correct
24 Correct 611 ms 25268 KB Output is correct
25 Correct 40 ms 4748 KB Output is correct
26 Correct 3 ms 2644 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 74 ms 6984 KB Output is correct
29 Correct 42 ms 5456 KB Output is correct
30 Correct 5 ms 2788 KB Output is correct
31 Correct 6 ms 2900 KB Output is correct
32 Correct 7 ms 2900 KB Output is correct
33 Correct 4 ms 2772 KB Output is correct
34 Correct 39 ms 4920 KB Output is correct
35 Correct 2 ms 2644 KB Output is correct
36 Correct 2 ms 2644 KB Output is correct
37 Correct 2 ms 2644 KB Output is correct
38 Correct 3 ms 2772 KB Output is correct
39 Correct 3 ms 2772 KB Output is correct
40 Correct 596 ms 24872 KB Output is correct
41 Correct 644 ms 25400 KB Output is correct
42 Correct 691 ms 25388 KB Output is correct
43 Correct 208 ms 14176 KB Output is correct
44 Correct 221 ms 14108 KB Output is correct
45 Correct 599 ms 22368 KB Output is correct
46 Correct 600 ms 22456 KB Output is correct
47 Correct 672 ms 25288 KB Output is correct
48 Correct 235 ms 14164 KB Output is correct
49 Correct 660 ms 24764 KB Output is correct
50 Correct 693 ms 22552 KB Output is correct
51 Correct 647 ms 22388 KB Output is correct