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Submission #696618

# Submission time Handle Problem Language Result Execution time Memory
696618 2023-02-07T01:33:40 Z uylulu Autobus (COCI22_autobus) C++17
70 / 70
 138 ms 4184 KB 
#include<bits/stdc++.h>
using namespace std;

#define int long long
#define endl "\n"

const int N = 70;

int dis[N + 1][N + 1],res[N + 1][N + 1][N + 1];

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

    // freopen("in.txt","r",stdin);
    // freopen("out.txt","w",stdout);

    int n,m;
    cin>>n>>m;

    for(int i = 1;i <= n;i++) {
        for(int j = 1;j <= n;j++) {
            if(i == j) continue;

            dis[i][j] = INT_MAX; 
        }
    }

    for(int i = 0;i < m;i++) {
        int a,b,t;
        cin>>a>>b>>t;

        dis[a][b] = min(dis[a][b],t);
    }
    for(int i = 0;i <= n;i++) {
        for(int j =0;j <= n;j++) {
            for(int t = 0;t <= n;t++) {
                res[i][j][t] = INT_MAX;                
            }
        }
    }

    for(int i = 1;i <= n;i++) {
        res[0][i][i] = 0;
    }
    for(int stage = 0;stage < n;stage++) {
        for(int root = 1;root <= n;root++) {

            for(int node = 1;node <= n;node++) {

                for(int fin = 1;fin <= n;fin++) {
                    res[stage + 1][root][fin] = min(res[stage + 1][root][fin],res[stage][root][node] + dis[node][fin]);
                }
            }
        }
    }
    int k,q;
    cin>>k>>q;

    k = min(k,n);

    while(q--) {
        int u,v;
        cin>>u>>v;

        int kq = INT_MAX;
        for(int i = 0;i <= k;i++) {
            kq = min(kq,res[i][u][v]);
        }
        if(kq == INT_MAX) {
            cout<<-1<<endl;
        } else {
            cout<<kq<<endl;
        }
    }
}

Subtask #1
15.0 / 15.0

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

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 3156 KB Output is correct
2 Correct 26 ms 3160 KB Output is correct
3 Correct 26 ms 3156 KB Output is correct
4 Correct 25 ms 3156 KB Output is correct
5 Correct 26 ms 3160 KB Output is correct
6 Correct 25 ms 3168 KB Output is correct
7 Correct 26 ms 3156 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 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 26 ms 3164 KB Output is correct
8 Correct 26 ms 3156 KB Output is correct
9 Correct 25 ms 3156 KB Output is correct
10 Correct 30 ms 3156 KB Output is correct
11 Correct 37 ms 3156 KB Output is correct
12 Correct 28 ms 3060 KB Output is correct
13 Correct 105 ms 3052 KB Output is correct
14 Correct 103 ms 3044 KB Output is correct
15 Correct 106 ms 3052 KB Output is correct
16 Correct 104 ms 3048 KB Output is correct
17 Correct 107 ms 3048 KB Output is correct
18 Correct 108 ms 3032 KB Output is correct
19 Correct 103 ms 3040 KB Output is correct
20 Correct 110 ms 3140 KB Output is correct
21 Correct 106 ms 3180 KB Output is correct
22 Correct 107 ms 3180 KB Output is correct
23 Correct 104 ms 3164 KB Output is correct
24 Correct 105 ms 3160 KB Output is correct
25 Correct 138 ms 3048 KB Output is correct
26 Correct 107 ms 3036 KB Output is correct
27 Correct 111 ms 3044 KB Output is correct
28 Correct 107 ms 3036 KB Output is correct
29 Correct 105 ms 3044 KB Output is correct
30 Correct 104 ms 3156 KB Output is correct
31 Correct 106 ms 3164 KB Output is correct
32 Correct 126 ms 3168 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 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 25 ms 3156 KB Output is correct
8 Correct 26 ms 3160 KB Output is correct
9 Correct 26 ms 3156 KB Output is correct
10 Correct 25 ms 3156 KB Output is correct
11 Correct 26 ms 3160 KB Output is correct
12 Correct 25 ms 3168 KB Output is correct
13 Correct 26 ms 3156 KB Output is correct
14 Correct 26 ms 3164 KB Output is correct
15 Correct 26 ms 3156 KB Output is correct
16 Correct 25 ms 3156 KB Output is correct
17 Correct 30 ms 3156 KB Output is correct
18 Correct 37 ms 3156 KB Output is correct
19 Correct 28 ms 3060 KB Output is correct
20 Correct 105 ms 3052 KB Output is correct
21 Correct 103 ms 3044 KB Output is correct
22 Correct 106 ms 3052 KB Output is correct
23 Correct 104 ms 3048 KB Output is correct
24 Correct 107 ms 3048 KB Output is correct
25 Correct 108 ms 3032 KB Output is correct
26 Correct 103 ms 3040 KB Output is correct
27 Correct 110 ms 3140 KB Output is correct
28 Correct 106 ms 3180 KB Output is correct
29 Correct 107 ms 3180 KB Output is correct
30 Correct 104 ms 3164 KB Output is correct
31 Correct 105 ms 3160 KB Output is correct
32 Correct 138 ms 3048 KB Output is correct
33 Correct 107 ms 3036 KB Output is correct
34 Correct 111 ms 3044 KB Output is correct
35 Correct 107 ms 3036 KB Output is correct
36 Correct 105 ms 3044 KB Output is correct
37 Correct 104 ms 3156 KB Output is correct
38 Correct 106 ms 3164 KB Output is correct
39 Correct 126 ms 3168 KB Output is correct
40 Correct 25 ms 3156 KB Output is correct
41 Correct 26 ms 3160 KB Output is correct
42 Correct 28 ms 3156 KB Output is correct
43 Correct 32 ms 3156 KB Output is correct
44 Correct 26 ms 3168 KB Output is correct
45 Correct 26 ms 3168 KB Output is correct
46 Correct 103 ms 3140 KB Output is correct
47 Correct 109 ms 3040 KB Output is correct
48 Correct 106 ms 3032 KB Output is correct
49 Correct 105 ms 3036 KB Output is correct
50 Correct 105 ms 3032 KB Output is correct
51 Correct 105 ms 3032 KB Output is correct
52 Correct 116 ms 3040 KB Output is correct
53 Correct 107 ms 3032 KB Output is correct
54 Correct 128 ms 3160 KB Output is correct
55 Correct 105 ms 3176 KB Output is correct
56 Correct 125 ms 3168 KB Output is correct
57 Correct 108 ms 3148 KB Output is correct
58 Correct 115 ms 3032 KB Output is correct
59 Correct 110 ms 3044 KB Output is correct
60 Correct 108 ms 3044 KB Output is correct
61 Correct 111 ms 3112 KB Output is correct
62 Correct 118 ms 3160 KB Output is correct
63 Correct 118 ms 3732 KB Output is correct
64 Correct 111 ms 4168 KB Output is correct
65 Correct 124 ms 4184 KB Output is correct