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Submission #696683

# Submission time Handle Problem Language Result Execution time Memory
696683 2023-02-07T03:45:10 Z tranxuanbach Autobus (COCI22_autobus) C++17
70 / 70
 141 ms 4920 KB 
#include <bits/stdc++.h>
using namespace std;

#define endl '\n'
#define fi first
#define se second
#define For(i, l, r) for (auto i = (l); i < (r); i++)
#define ForE(i, l, r) for (auto i = (l); i <= (r); i++)
#define FordE(i, l, r) for (auto i = (l); i >= (r); i--)
#define Fora(v, a) for (auto v: (a))
#define bend(a) (a).begin(), (a).end()
#define isz(a) ((signed)(a).size())

using ll = long long;
using ld = long double;
using pii = pair <int, int>;
using vi = vector <int>;
using vpii = vector <pii>;
using vvi = vector <vi>;

const int N = 70 + 5, inf = 1e9 + 7;

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

int dp[N][N][N];

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    // freopen("KEK.inp", "r", stdin);
    // freopen("KEK.out", "w", stdout);
    cin >> n >> m;
    ForE(u, 1, n){
        ForE(v, 1, n){
            adj[u][v] = inf;
        }
    }
    while (m--){
        int u, v, w; cin >> u >> v >> w;
        adj[u][v] = min(adj[u][v], w);
    }

    int k, q; cin >> k >> q; k = min(k, n);
    ForE(u, 1, n){
        ForE(v, 1, n){
            dp[0][u][v] = (u == v ? 0 : inf);
        }
    }
    ForE(i, 1, k){
        ForE(u, 1, n){
            ForE(v, 1, n){
                dp[i][u][v] = (u == v ? 0 : inf);
            }
        }
        ForE(w, 1, n){
            ForE(u, 1, n){
                ForE(v, 1, n){
                    dp[i][u][v] = min(dp[i][u][v], dp[i - 1][u][w] + adj[w][v]);
                }
            }
        }
    }
    while (q--){
        int u, v; cin >> u >> v;
        cout << (dp[k][u][v] == inf ? -1 : dp[k][u][v]) << endl;
    }
}

/*
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INPUT                                             |
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OUTPUT                                            |
--------------------------------------------------|

--------------------------------------------------|
==================================================+
*/

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 344 KB Output is correct
2 Correct 2 ms 476 KB Output is correct
3 Correct 3 ms 472 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 2 ms 468 KB Output is correct
6 Correct 3 ms 476 KB Output is correct
7 Correct 3 ms 520 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 10 ms 852 KB Output is correct
8 Correct 25 ms 1892 KB Output is correct
9 Correct 4 ms 476 KB Output is correct
10 Correct 14 ms 1124 KB Output is correct
11 Correct 7 ms 604 KB Output is correct
12 Correct 18 ms 1340 KB Output is correct
13 Correct 89 ms 3108 KB Output is correct
14 Correct 95 ms 3124 KB Output is correct
15 Correct 114 ms 4264 KB Output is correct
16 Correct 103 ms 3688 KB Output is correct
17 Correct 93 ms 3276 KB Output is correct
18 Correct 94 ms 3232 KB Output is correct
19 Correct 117 ms 4704 KB Output is correct
20 Correct 104 ms 4164 KB Output is correct
21 Correct 101 ms 3372 KB Output is correct
22 Correct 106 ms 3660 KB Output is correct
23 Correct 108 ms 3500 KB Output is correct
24 Correct 118 ms 4192 KB Output is correct
25 Correct 95 ms 3276 KB Output is correct
26 Correct 96 ms 3644 KB Output is correct
27 Correct 109 ms 3832 KB Output is correct
28 Correct 105 ms 3600 KB Output is correct
29 Correct 101 ms 3276 KB Output is correct
30 Correct 97 ms 3612 KB Output is correct
31 Correct 102 ms 4048 KB Output is correct
32 Correct 115 ms 4692 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 328 KB Output is correct
7 Correct 2 ms 344 KB Output is correct
8 Correct 2 ms 476 KB Output is correct
9 Correct 3 ms 472 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 3 ms 476 KB Output is correct
13 Correct 3 ms 520 KB Output is correct
14 Correct 10 ms 852 KB Output is correct
15 Correct 25 ms 1892 KB Output is correct
16 Correct 4 ms 476 KB Output is correct
17 Correct 14 ms 1124 KB Output is correct
18 Correct 7 ms 604 KB Output is correct
19 Correct 18 ms 1340 KB Output is correct
20 Correct 89 ms 3108 KB Output is correct
21 Correct 95 ms 3124 KB Output is correct
22 Correct 114 ms 4264 KB Output is correct
23 Correct 103 ms 3688 KB Output is correct
24 Correct 93 ms 3276 KB Output is correct
25 Correct 94 ms 3232 KB Output is correct
26 Correct 117 ms 4704 KB Output is correct
27 Correct 104 ms 4164 KB Output is correct
28 Correct 101 ms 3372 KB Output is correct
29 Correct 106 ms 3660 KB Output is correct
30 Correct 108 ms 3500 KB Output is correct
31 Correct 118 ms 4192 KB Output is correct
32 Correct 95 ms 3276 KB Output is correct
33 Correct 96 ms 3644 KB Output is correct
34 Correct 109 ms 3832 KB Output is correct
35 Correct 105 ms 3600 KB Output is correct
36 Correct 101 ms 3276 KB Output is correct
37 Correct 97 ms 3612 KB Output is correct
38 Correct 102 ms 4048 KB Output is correct
39 Correct 115 ms 4692 KB Output is correct
40 Correct 8 ms 724 KB Output is correct
41 Correct 27 ms 1936 KB Output is correct
42 Correct 6 ms 596 KB Output is correct
43 Correct 30 ms 1932 KB Output is correct
44 Correct 6 ms 596 KB Output is correct
45 Correct 27 ms 1864 KB Output is correct
46 Correct 89 ms 3336 KB Output is correct
47 Correct 120 ms 4008 KB Output is correct
48 Correct 93 ms 3632 KB Output is correct
49 Correct 132 ms 4808 KB Output is correct
50 Correct 103 ms 3360 KB Output is correct
51 Correct 112 ms 3676 KB Output is correct
52 Correct 89 ms 3416 KB Output is correct
53 Correct 120 ms 4920 KB Output is correct
54 Correct 95 ms 3568 KB Output is correct
55 Correct 91 ms 2512 KB Output is correct
56 Correct 111 ms 3460 KB Output is correct
57 Correct 130 ms 3700 KB Output is correct
58 Correct 92 ms 2116 KB Output is correct
59 Correct 100 ms 2704 KB Output is correct
60 Correct 117 ms 3300 KB Output is correct
61 Correct 141 ms 3684 KB Output is correct
62 Correct 102 ms 2196 KB Output is correct
63 Correct 97 ms 2220 KB Output is correct
64 Correct 107 ms 2776 KB Output is correct
65 Correct 122 ms 3652 KB Output is correct