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Submission #641266

# Submission time Handle Problem Language Result Execution time Memory
641266 2022-09-16T09:42:58 Z lto5 Autobus (COCI22_autobus) C++14
70 / 70
 128 ms 9932 KB 
#include <bits/stdc++.h>
using namespace std;

long long dist[75][75];
long long f[75][75][75];
int n, m;
int lim, q;

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);

  cin >> n >> m;

  memset(dist, 0x3f, sizeof(dist));
  memset(f, 0x3f, sizeof(f));

  const long long INF = dist[0][0];

  for (int i = 0; i <= n; i++)
    dist[i][i] = 0,
    f[1][i][i] = 0;

  while (m--) {
    int u, v, w;
    cin >> u >> v >> w;
    dist[u][v] = min(dist[u][v], 1ll * w);
    f[1][u][v] = dist[u][v];
  }

  cin >> lim >> q;

  lim = min(lim, n-1);

  for (int t = 2; t <= lim; t++) {
    for (int i = 1; i <= n; i++) {
      for (int j = 1; j <= n; j++) {
        for (int k = 1; k <= n; k++)
          f[t][i][j] = min(f[t][i][j], f[t - 1][i][k] + dist[k][j]);
      }
    }
  }

  while (q--) {
    int u, v;
    cin >> u >> v;
    long long ans = INF;
    for (int t = 0; t <= lim; t++)
      ans = min(ans, f[t][u][v]);
    if (ans == INF)
      cout << -1 << "\n";
    else cout << ans << "\n";
  }

  return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3668 KB Output is correct
2 Correct 2 ms 3668 KB Output is correct
3 Correct 2 ms 3668 KB Output is correct
4 Correct 2 ms 3540 KB Output is correct
5 Correct 2 ms 3668 KB Output is correct
6 Correct 2 ms 3656 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3668 KB Output is correct
2 Correct 4 ms 3668 KB Output is correct
3 Correct 5 ms 3668 KB Output is correct
4 Correct 4 ms 3668 KB Output is correct
5 Correct 4 ms 3672 KB Output is correct
6 Correct 5 ms 3744 KB Output is correct
7 Correct 5 ms 3740 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3668 KB Output is correct
2 Correct 2 ms 3668 KB Output is correct
3 Correct 2 ms 3668 KB Output is correct
4 Correct 2 ms 3540 KB Output is correct
5 Correct 2 ms 3668 KB Output is correct
6 Correct 2 ms 3656 KB Output is correct
7 Correct 12 ms 3668 KB Output is correct
8 Correct 29 ms 3684 KB Output is correct
9 Correct 4 ms 3668 KB Output is correct
10 Correct 18 ms 3708 KB Output is correct
11 Correct 9 ms 3668 KB Output is correct
12 Correct 21 ms 3788 KB Output is correct
13 Correct 105 ms 9772 KB Output is correct
14 Correct 91 ms 9776 KB Output is correct
15 Correct 112 ms 9676 KB Output is correct
16 Correct 100 ms 9776 KB Output is correct
17 Correct 94 ms 9804 KB Output is correct
18 Correct 114 ms 9776 KB Output is correct
19 Correct 116 ms 9904 KB Output is correct
20 Correct 103 ms 9776 KB Output is correct
21 Correct 99 ms 9904 KB Output is correct
22 Correct 98 ms 9900 KB Output is correct
23 Correct 96 ms 9904 KB Output is correct
24 Correct 107 ms 9904 KB Output is correct
25 Correct 95 ms 9900 KB Output is correct
26 Correct 128 ms 9916 KB Output is correct
27 Correct 102 ms 9904 KB Output is correct
28 Correct 98 ms 9932 KB Output is correct
29 Correct 96 ms 9664 KB Output is correct
30 Correct 118 ms 9648 KB Output is correct
31 Correct 109 ms 9648 KB Output is correct
32 Correct 113 ms 9676 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3668 KB Output is correct
2 Correct 2 ms 3668 KB Output is correct
3 Correct 2 ms 3668 KB Output is correct
4 Correct 2 ms 3540 KB Output is correct
5 Correct 2 ms 3668 KB Output is correct
6 Correct 2 ms 3656 KB Output is correct
7 Correct 3 ms 3668 KB Output is correct
8 Correct 4 ms 3668 KB Output is correct
9 Correct 5 ms 3668 KB Output is correct
10 Correct 4 ms 3668 KB Output is correct
11 Correct 4 ms 3672 KB Output is correct
12 Correct 5 ms 3744 KB Output is correct
13 Correct 5 ms 3740 KB Output is correct
14 Correct 12 ms 3668 KB Output is correct
15 Correct 29 ms 3684 KB Output is correct
16 Correct 4 ms 3668 KB Output is correct
17 Correct 18 ms 3708 KB Output is correct
18 Correct 9 ms 3668 KB Output is correct
19 Correct 21 ms 3788 KB Output is correct
20 Correct 105 ms 9772 KB Output is correct
21 Correct 91 ms 9776 KB Output is correct
22 Correct 112 ms 9676 KB Output is correct
23 Correct 100 ms 9776 KB Output is correct
24 Correct 94 ms 9804 KB Output is correct
25 Correct 114 ms 9776 KB Output is correct
26 Correct 116 ms 9904 KB Output is correct
27 Correct 103 ms 9776 KB Output is correct
28 Correct 99 ms 9904 KB Output is correct
29 Correct 98 ms 9900 KB Output is correct
30 Correct 96 ms 9904 KB Output is correct
31 Correct 107 ms 9904 KB Output is correct
32 Correct 95 ms 9900 KB Output is correct
33 Correct 128 ms 9916 KB Output is correct
34 Correct 102 ms 9904 KB Output is correct
35 Correct 98 ms 9932 KB Output is correct
36 Correct 96 ms 9664 KB Output is correct
37 Correct 118 ms 9648 KB Output is correct
38 Correct 109 ms 9648 KB Output is correct
39 Correct 113 ms 9676 KB Output is correct
40 Correct 9 ms 3668 KB Output is correct
41 Correct 29 ms 3696 KB Output is correct
42 Correct 6 ms 3708 KB Output is correct
43 Correct 29 ms 3696 KB Output is correct
44 Correct 7 ms 3668 KB Output is correct
45 Correct 29 ms 3748 KB Output is correct
46 Correct 98 ms 9784 KB Output is correct
47 Correct 101 ms 9776 KB Output is correct
48 Correct 94 ms 9784 KB Output is correct
49 Correct 127 ms 9784 KB Output is correct
50 Correct 96 ms 9784 KB Output is correct
51 Correct 111 ms 9864 KB Output is correct
52 Correct 113 ms 9776 KB Output is correct
53 Correct 116 ms 9788 KB Output is correct
54 Correct 92 ms 9908 KB Output is correct
55 Correct 101 ms 9916 KB Output is correct
56 Correct 126 ms 9904 KB Output is correct
57 Correct 115 ms 9900 KB Output is correct
58 Correct 104 ms 9900 KB Output is correct
59 Correct 109 ms 9904 KB Output is correct
60 Correct 118 ms 9908 KB Output is correct
61 Correct 116 ms 9904 KB Output is correct
62 Correct 92 ms 9736 KB Output is correct
63 Correct 128 ms 9672 KB Output is correct
64 Correct 105 ms 9772 KB Output is correct
65 Correct 118 ms 9656 KB Output is correct