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Submission #871059

# Submission time Handle Problem Language Result Execution time Memory
871059 2023-11-09T19:34:00 Z Cyber_Wolf Autobus (COCI22_autobus) C++17
70 / 70
 850 ms 21584 KB 
#include <bits/stdc++.h>

using namespace std;

#define lg long long 
#define fastio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);

const lg N = 100;

lg d[N][N][N], cost[N][N], in_queue[N][N][N];

int main()
{
	fastio;
	lg n, m;
	cin >> n >> m;
	memset(d, 0x3f, sizeof(d));
	memset(cost, 0x3f, sizeof(cost));
	for(int i = 0; i < m; i++)
	{
		lg a, b, t;
		cin >> a >> b >> t;
		cost[a][b] = min(cost[a][b], t);
	}
	lg k, q;
	cin >> k >> q;
	k = min(k, n);
	priority_queue<array<lg, 3>> pq;
	for(int i = 1; i <= n; i++)	
	{
		pq.push({0, i, 0});
		in_queue[i][i][0] = true;
		d[i][i][0] = 0;
		while(pq.size())
		{
			lg u = pq.top()[1], v = pq.top()[2];
			pq.pop();
			in_queue[i][u][v] = false;
			if(v == k)	continue;
			for(int j = 1; j <= n; j++)
			{
				if(cost[u][j] > 1e6)	continue;
				if(d[i][j][v+1] > d[i][u][v]+cost[u][j])
				{
					d[i][j][v+1] = d[i][u][v]+cost[u][j];
					if(in_queue[i][j][v+1])	continue;
					in_queue[i][j][v+1] = true;
					pq.push({-d[i][j][v+1], j, v+1});
				}
			}
		}
		for(int j = 1; j <= n; j++)
		{
			for(int z = 1; z <= n; z++)
			{
				d[i][j][z] = min(d[i][j][z], d[i][j][z-1]);
			}
		}
	}
	while(q--)
	{
		lg c, e;
		cin >> c >> e;
		if(d[c][e][k] > 1e9)
		{
			cout << "-1\n";
			continue;
		}
		cout << d[c][e][k] << '\n';
	}
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 11868 KB Output is correct
2 Correct 2 ms 11868 KB Output is correct
3 Correct 2 ms 11868 KB Output is correct
4 Correct 2 ms 11868 KB Output is correct
5 Correct 2 ms 11728 KB Output is correct
6 Correct 3 ms 11868 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 13148 KB Output is correct
2 Correct 5 ms 14684 KB Output is correct
3 Correct 6 ms 14940 KB Output is correct
4 Correct 5 ms 14940 KB Output is correct
5 Correct 8 ms 15084 KB Output is correct
6 Correct 9 ms 14936 KB Output is correct
7 Correct 10 ms 14936 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 11868 KB Output is correct
2 Correct 2 ms 11868 KB Output is correct
3 Correct 2 ms 11868 KB Output is correct
4 Correct 2 ms 11868 KB Output is correct
5 Correct 2 ms 11728 KB Output is correct
6 Correct 3 ms 11868 KB Output is correct
7 Correct 40 ms 14936 KB Output is correct
8 Correct 98 ms 15352 KB Output is correct
9 Correct 9 ms 14940 KB Output is correct
10 Correct 108 ms 15072 KB Output is correct
11 Correct 44 ms 15108 KB Output is correct
12 Correct 562 ms 15456 KB Output is correct
13 Correct 80 ms 21352 KB Output is correct
14 Correct 84 ms 21096 KB Output is correct
15 Correct 746 ms 21192 KB Output is correct
16 Correct 163 ms 21076 KB Output is correct
17 Correct 80 ms 21280 KB Output is correct
18 Correct 83 ms 21092 KB Output is correct
19 Correct 164 ms 21328 KB Output is correct
20 Correct 121 ms 21356 KB Output is correct
21 Correct 76 ms 21104 KB Output is correct
22 Correct 103 ms 21328 KB Output is correct
23 Correct 101 ms 21304 KB Output is correct
24 Correct 177 ms 21536 KB Output is correct
25 Correct 79 ms 21332 KB Output is correct
26 Correct 104 ms 21344 KB Output is correct
27 Correct 115 ms 21332 KB Output is correct
28 Correct 110 ms 21584 KB Output is correct
29 Correct 81 ms 21072 KB Output is correct
30 Correct 113 ms 21072 KB Output is correct
31 Correct 184 ms 21072 KB Output is correct
32 Correct 326 ms 21248 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 11868 KB Output is correct
2 Correct 2 ms 11868 KB Output is correct
3 Correct 2 ms 11868 KB Output is correct
4 Correct 2 ms 11868 KB Output is correct
5 Correct 2 ms 11728 KB Output is correct
6 Correct 3 ms 11868 KB Output is correct
7 Correct 4 ms 13148 KB Output is correct
8 Correct 5 ms 14684 KB Output is correct
9 Correct 6 ms 14940 KB Output is correct
10 Correct 5 ms 14940 KB Output is correct
11 Correct 8 ms 15084 KB Output is correct
12 Correct 9 ms 14936 KB Output is correct
13 Correct 10 ms 14936 KB Output is correct
14 Correct 40 ms 14936 KB Output is correct
15 Correct 98 ms 15352 KB Output is correct
16 Correct 9 ms 14940 KB Output is correct
17 Correct 108 ms 15072 KB Output is correct
18 Correct 44 ms 15108 KB Output is correct
19 Correct 562 ms 15456 KB Output is correct
20 Correct 80 ms 21352 KB Output is correct
21 Correct 84 ms 21096 KB Output is correct
22 Correct 746 ms 21192 KB Output is correct
23 Correct 163 ms 21076 KB Output is correct
24 Correct 80 ms 21280 KB Output is correct
25 Correct 83 ms 21092 KB Output is correct
26 Correct 164 ms 21328 KB Output is correct
27 Correct 121 ms 21356 KB Output is correct
28 Correct 76 ms 21104 KB Output is correct
29 Correct 103 ms 21328 KB Output is correct
30 Correct 101 ms 21304 KB Output is correct
31 Correct 177 ms 21536 KB Output is correct
32 Correct 79 ms 21332 KB Output is correct
33 Correct 104 ms 21344 KB Output is correct
34 Correct 115 ms 21332 KB Output is correct
35 Correct 110 ms 21584 KB Output is correct
36 Correct 81 ms 21072 KB Output is correct
37 Correct 113 ms 21072 KB Output is correct
38 Correct 184 ms 21072 KB Output is correct
39 Correct 326 ms 21248 KB Output is correct
40 Correct 29 ms 14936 KB Output is correct
41 Correct 100 ms 15184 KB Output is correct
42 Correct 18 ms 14940 KB Output is correct
43 Correct 265 ms 15172 KB Output is correct
44 Correct 41 ms 15376 KB Output is correct
45 Correct 850 ms 15376 KB Output is correct
46 Correct 85 ms 20964 KB Output is correct
47 Correct 206 ms 21180 KB Output is correct
48 Correct 113 ms 21072 KB Output is correct
49 Correct 454 ms 21356 KB Output is correct
50 Correct 80 ms 21140 KB Output is correct
51 Correct 99 ms 21072 KB Output is correct
52 Correct 77 ms 21212 KB Output is correct
53 Correct 171 ms 21520 KB Output is correct
54 Correct 77 ms 21228 KB Output is correct
55 Correct 83 ms 21224 KB Output is correct
56 Correct 286 ms 21332 KB Output is correct
57 Correct 308 ms 21328 KB Output is correct
58 Correct 83 ms 21332 KB Output is correct
59 Correct 122 ms 21356 KB Output is correct
60 Correct 163 ms 21328 KB Output is correct
61 Correct 190 ms 21348 KB Output is correct
62 Correct 77 ms 21076 KB Output is correct
63 Correct 122 ms 21388 KB Output is correct
64 Correct 130 ms 21104 KB Output is correct
65 Correct 418 ms 21400 KB Output is correct