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Submission #534829

# Submission time Handle Problem Language Result Execution time Memory
534829 2022-03-09T03:19:16 Z phathnv Autobus (COCI22_autobus) C++11
70 / 70
 155 ms 8116 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 75;

int n, m, dp[N][N][N];

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m;
    for (int i = 1; i <= n; ++i) {
        for (int u = 1; u <= n; ++u) {
            for (int v = 1; v <= n; ++v) {
                dp[i][u][v] = (u != v? 1e9 : 0);
            }
        }
    }
    for (int i = 0; i < m; ++i) {
        int u, v, c;
        cin >> u >> v >> c;
        dp[1][u][v] = min(dp[1][u][v], c);
    }
    for (int i = 2; i <= n; ++i) {
        for (int u = 1; u <= n; ++u) {
            for (int v = 1; v <= n; ++v) {
                dp[i][u][v] = dp[i - 1][u][v];
            }
        }
        for (int u = 1; u <= n; ++u) {
            for (int v = 1; v <= n; ++v) {
                for (int k = 1; k <= n; ++k) {
                    dp[i][u][v] = min(dp[i][u][v], dp[i - 1][u][k] + dp[1][k][v]);
                }
            }
        }
    }
    int k, q;
    cin >> k >> q;
    k = min(k, n);
    for (int i = 0; i < q; ++i) {
        int u, v;
        cin >> u >> v;
        cout << (dp[k][u][v] == 1e9? -1 : dp[k][u][v]) << '\n';
    }
    return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 1840 KB Output is correct
2 Correct 30 ms 1864 KB Output is correct
3 Correct 30 ms 1856 KB Output is correct
4 Correct 33 ms 1848 KB Output is correct
5 Correct 34 ms 1856 KB Output is correct
6 Correct 31 ms 1856 KB Output is correct
7 Correct 32 ms 1856 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 31 ms 1856 KB Output is correct
8 Correct 29 ms 1860 KB Output is correct
9 Correct 35 ms 1848 KB Output is correct
10 Correct 33 ms 1856 KB Output is correct
11 Correct 32 ms 1856 KB Output is correct
12 Correct 31 ms 1856 KB Output is correct
13 Correct 125 ms 2724 KB Output is correct
14 Correct 124 ms 3144 KB Output is correct
15 Correct 120 ms 3232 KB Output is correct
16 Correct 131 ms 7448 KB Output is correct
17 Correct 122 ms 6660 KB Output is correct
18 Correct 141 ms 5816 KB Output is correct
19 Correct 145 ms 7304 KB Output is correct
20 Correct 130 ms 7160 KB Output is correct
21 Correct 139 ms 7344 KB Output is correct
22 Correct 122 ms 7388 KB Output is correct
23 Correct 119 ms 7200 KB Output is correct
24 Correct 148 ms 6620 KB Output is correct
25 Correct 130 ms 6520 KB Output is correct
26 Correct 118 ms 5208 KB Output is correct
27 Correct 126 ms 1868 KB Output is correct
28 Correct 125 ms 1868 KB Output is correct
29 Correct 118 ms 1980 KB Output is correct
30 Correct 122 ms 6108 KB Output is correct
31 Correct 132 ms 7728 KB Output is correct
32 Correct 124 ms 7336 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 30 ms 1840 KB Output is correct
8 Correct 30 ms 1864 KB Output is correct
9 Correct 30 ms 1856 KB Output is correct
10 Correct 33 ms 1848 KB Output is correct
11 Correct 34 ms 1856 KB Output is correct
12 Correct 31 ms 1856 KB Output is correct
13 Correct 32 ms 1856 KB Output is correct
14 Correct 31 ms 1856 KB Output is correct
15 Correct 29 ms 1860 KB Output is correct
16 Correct 35 ms 1848 KB Output is correct
17 Correct 33 ms 1856 KB Output is correct
18 Correct 32 ms 1856 KB Output is correct
19 Correct 31 ms 1856 KB Output is correct
20 Correct 125 ms 2724 KB Output is correct
21 Correct 124 ms 3144 KB Output is correct
22 Correct 120 ms 3232 KB Output is correct
23 Correct 131 ms 7448 KB Output is correct
24 Correct 122 ms 6660 KB Output is correct
25 Correct 141 ms 5816 KB Output is correct
26 Correct 145 ms 7304 KB Output is correct
27 Correct 130 ms 7160 KB Output is correct
28 Correct 139 ms 7344 KB Output is correct
29 Correct 122 ms 7388 KB Output is correct
30 Correct 119 ms 7200 KB Output is correct
31 Correct 148 ms 6620 KB Output is correct
32 Correct 130 ms 6520 KB Output is correct
33 Correct 118 ms 5208 KB Output is correct
34 Correct 126 ms 1868 KB Output is correct
35 Correct 125 ms 1868 KB Output is correct
36 Correct 118 ms 1980 KB Output is correct
37 Correct 122 ms 6108 KB Output is correct
38 Correct 132 ms 7728 KB Output is correct
39 Correct 124 ms 7336 KB Output is correct
40 Correct 31 ms 1860 KB Output is correct
41 Correct 32 ms 1852 KB Output is correct
42 Correct 34 ms 1868 KB Output is correct
43 Correct 41 ms 1872 KB Output is correct
44 Correct 34 ms 1868 KB Output is correct
45 Correct 32 ms 1868 KB Output is correct
46 Correct 126 ms 5816 KB Output is correct
47 Correct 151 ms 5972 KB Output is correct
48 Correct 118 ms 7096 KB Output is correct
49 Correct 114 ms 7288 KB Output is correct
50 Correct 145 ms 7608 KB Output is correct
51 Correct 118 ms 6212 KB Output is correct
52 Correct 118 ms 7108 KB Output is correct
53 Correct 124 ms 7136 KB Output is correct
54 Correct 149 ms 7440 KB Output is correct
55 Correct 119 ms 6756 KB Output is correct
56 Correct 135 ms 7992 KB Output is correct
57 Correct 115 ms 4560 KB Output is correct
58 Correct 124 ms 8076 KB Output is correct
59 Correct 141 ms 7912 KB Output is correct
60 Correct 124 ms 8116 KB Output is correct
61 Correct 155 ms 8116 KB Output is correct
62 Correct 135 ms 7852 KB Output is correct
63 Correct 116 ms 7844 KB Output is correct
64 Correct 124 ms 2636 KB Output is correct
65 Correct 122 ms 5644 KB Output is correct