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Submission #864519

# Submission time Handle Problem Language Result Execution time Memory
864519 2023-10-23T07:04:10 Z maks007 Toll (BOI17_toll) C++14
56 / 100
 3000 ms 12340 KB 
// Bismi ALlah
#include "bits/stdc++.h"

using namespace std;

signed main () {
	int n, m, k, query;
	cin >> k >> n >> m >> query;
	vector<pair <int,int>> g[n], revG[n];
	for(int i = 0; i < m; i ++) {
		int u, v;
		cin >> u >> v;
		int w;
		cin >> w;
		revG[v].push_back({u, w});
		g[u].push_back({v, w});
	}
	priority_queue <pair <int,int>> q;
	vector <int> dist(n, 1e9);
	dist[0] = 0;
	q.push({0, 0});
	while(!q.empty()) {
		int v = q.top().second, cur_d = q.top().first;
		q.pop();
		if(cur_d > dist[v]) continue;
		for(auto [u, w] : g[v]) {
			if(dist[u] > dist[v] + w) {
				dist[u] = dist[v] + w;
				q.push({-dist[u], u});
			}
		}
	}
	while(query --) {
		int a, b;
		cin >> a >> b;
		
			int dp[n];
			for(int i = 0; i < n; i ++) dp[i] = 1e9;
			dp[b] = 0;
			for(int i = n - 1; i >= 0; i--) {
				if(dp[i] != 1e9) {
					for(auto [u, w] : revG[i]) {
						dp[u] = min(dp[u], dp[i] + w);
					}
				}
			}
			if(dp[a] == 1e9) cout << -1 << "\n";
			else cout << dp[a] << "\n";
		
	}
	return 0;
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:26:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   26 |   for(auto [u, w] : g[v]) {
      |            ^
toll.cpp:42:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   42 |      for(auto [u, w] : revG[i]) {
      |               ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1498 ms 6740 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 3 ms 448 KB Output is correct
6 Correct 3 ms 536 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 430 ms 7224 KB Output is correct
9 Correct 401 ms 7044 KB Output is correct
10 Correct 336 ms 3296 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1080 ms 6504 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 26 ms 348 KB Output is correct
8 Correct 40 ms 604 KB Output is correct
9 Correct 405 ms 6492 KB Output is correct
10 Correct 2315 ms 8420 KB Output is correct
11 Correct 1557 ms 6608 KB Output is correct
12 Correct 414 ms 6232 KB Output is correct
13 Correct 666 ms 7508 KB Output is correct
14 Correct 442 ms 5456 KB Output is correct
15 Correct 515 ms 4440 KB Output is correct
16 Correct 520 ms 4500 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 600 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 4 ms 604 KB Output is correct
9 Correct 3 ms 508 KB Output is correct
10 Correct 37 ms 6488 KB Output is correct
11 Correct 88 ms 6228 KB Output is correct
12 Correct 125 ms 8136 KB Output is correct
13 Correct 141 ms 8484 KB Output is correct
14 Correct 116 ms 7128 KB Output is correct
15 Correct 71 ms 4848 KB Output is correct
16 Correct 72 ms 4432 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 600 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 4 ms 604 KB Output is correct
9 Correct 3 ms 508 KB Output is correct
10 Correct 37 ms 6488 KB Output is correct
11 Correct 88 ms 6228 KB Output is correct
12 Correct 125 ms 8136 KB Output is correct
13 Correct 141 ms 8484 KB Output is correct
14 Correct 116 ms 7128 KB Output is correct
15 Correct 71 ms 4848 KB Output is correct
16 Correct 72 ms 4432 KB Output is correct
17 Correct 706 ms 6484 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 8 ms 344 KB Output is correct
24 Correct 15 ms 600 KB Output is correct
25 Correct 21 ms 600 KB Output is correct
26 Correct 18 ms 600 KB Output is correct
27 Correct 150 ms 7004 KB Output is correct
28 Correct 904 ms 10584 KB Output is correct
29 Correct 896 ms 10836 KB Output is correct
30 Correct 530 ms 9180 KB Output is correct

Subtask #5
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 1498 ms 6740 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 3 ms 448 KB Output is correct
6 Correct 3 ms 536 KB Output is correct
7 Correct 3 ms 348 KB Output is correct
8 Correct 430 ms 7224 KB Output is correct
9 Correct 401 ms 7044 KB Output is correct
10 Correct 336 ms 3296 KB Output is correct
11 Correct 1080 ms 6504 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 26 ms 348 KB Output is correct
18 Correct 40 ms 604 KB Output is correct
19 Correct 405 ms 6492 KB Output is correct
20 Correct 2315 ms 8420 KB Output is correct
21 Correct 1557 ms 6608 KB Output is correct
22 Correct 414 ms 6232 KB Output is correct
23 Correct 666 ms 7508 KB Output is correct
24 Correct 442 ms 5456 KB Output is correct
25 Correct 515 ms 4440 KB Output is correct
26 Correct 520 ms 4500 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 600 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 2 ms 348 KB Output is correct
33 Correct 2 ms 348 KB Output is correct
34 Correct 4 ms 604 KB Output is correct
35 Correct 3 ms 508 KB Output is correct
36 Correct 37 ms 6488 KB Output is correct
37 Correct 88 ms 6228 KB Output is correct
38 Correct 125 ms 8136 KB Output is correct
39 Correct 141 ms 8484 KB Output is correct
40 Correct 116 ms 7128 KB Output is correct
41 Correct 71 ms 4848 KB Output is correct
42 Correct 72 ms 4432 KB Output is correct
43 Correct 706 ms 6484 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 344 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 8 ms 344 KB Output is correct
50 Correct 15 ms 600 KB Output is correct
51 Correct 21 ms 600 KB Output is correct
52 Correct 18 ms 600 KB Output is correct
53 Correct 150 ms 7004 KB Output is correct
54 Correct 904 ms 10584 KB Output is correct
55 Correct 896 ms 10836 KB Output is correct
56 Correct 530 ms 9180 KB Output is correct
57 Execution timed out 3006 ms 12340 KB Time limit exceeded
58 Halted 0 ms 0 KB -