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Submission #526006

# Submission time Handle Problem Language Result Execution time Memory
526006 2022-02-13T13:28:47 Z n00bie_1004 Autobus (COCI22_autobus) C++17
70 / 70
 134 ms 15072 KB 
#include <bits/stdc++.h>
typedef long long int ll; 

const ll inf = 1e18;

using namespace std;

int main(){ 
    ios_base::sync_with_stdio(false); cin.tie(NULL); 
    ll n, m;
    cin >> n >> m;
    vector<array<ll, 3>> edge(m); 
    for(auto &[u, v, w] : edge)
        cin >> u >> v >> w, --u, --v;
    ll val[n][n];
    for(ll i = 0; i < n; i++)
        for(ll j = 0; j < n; j++)
            val[i][j] = inf;  
    for(auto [u, v, w] : edge)
        val[u][v] = min(val[u][v], w);
    ll k, q; 
    cin >> k >> q; 
    if(k > n - 1)
        k = n - 1; 
    ll dp[k + 1][n][n];
    for(ll l = 0; l <= k; l++)
        for(ll i = 0; i < n; i++)
            for(ll j = 0; j < n; j++)
                dp[l][i][j] = inf; 
    for(ll i = 0; i < n; i++)
        dp[0][i][i] = 0; 
    for(ll l = 1; l <= k; l++)
        for(ll v = 0; v < n; v++)
            for(ll i = 0; i < n; i++)
                for(ll j = 0; j < n; j++)
                    if(dp[l - 1][i][v] != inf && edge[v][j] != inf)
                        dp[l][i][j] = min(dp[l][i][j], dp[l - 1][i][v] + val[v][j]); 
    while(q--){
        ll u, v, ans = inf; 
        cin >> u >> v; --u; --v; 
        for(ll l = 0; l <= k; l++)
            ans = min(ans, dp[l][u][v]);
        cout << (ans != inf ? ans : -1) << "\n"; 
    }
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 460 KB Output is correct
2 Correct 3 ms 472 KB Output is correct
3 Correct 3 ms 460 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 3 ms 460 KB Output is correct
6 Correct 3 ms 588 KB Output is correct
7 Correct 4 ms 588 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 12 ms 1316 KB Output is correct
8 Correct 32 ms 2984 KB Output is correct
9 Correct 4 ms 460 KB Output is correct
10 Correct 18 ms 1832 KB Output is correct
11 Correct 6 ms 820 KB Output is correct
12 Correct 22 ms 2124 KB Output is correct
13 Correct 98 ms 11964 KB Output is correct
14 Correct 95 ms 12088 KB Output is correct
15 Correct 116 ms 14096 KB Output is correct
16 Correct 101 ms 12600 KB Output is correct
17 Correct 99 ms 12172 KB Output is correct
18 Correct 94 ms 12172 KB Output is correct
19 Correct 123 ms 14660 KB Output is correct
20 Correct 112 ms 13576 KB Output is correct
21 Correct 95 ms 12164 KB Output is correct
22 Correct 102 ms 12612 KB Output is correct
23 Correct 104 ms 12560 KB Output is correct
24 Correct 110 ms 13448 KB Output is correct
25 Correct 98 ms 12516 KB Output is correct
26 Correct 103 ms 13032 KB Output is correct
27 Correct 111 ms 13380 KB Output is correct
28 Correct 104 ms 13168 KB Output is correct
29 Correct 96 ms 12068 KB Output is correct
30 Correct 98 ms 12484 KB Output is correct
31 Correct 108 ms 13252 KB Output is correct
32 Correct 134 ms 14508 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 2 ms 460 KB Output is correct
8 Correct 3 ms 472 KB Output is correct
9 Correct 3 ms 460 KB Output is correct
10 Correct 3 ms 460 KB Output is correct
11 Correct 3 ms 460 KB Output is correct
12 Correct 3 ms 588 KB Output is correct
13 Correct 4 ms 588 KB Output is correct
14 Correct 12 ms 1316 KB Output is correct
15 Correct 32 ms 2984 KB Output is correct
16 Correct 4 ms 460 KB Output is correct
17 Correct 18 ms 1832 KB Output is correct
18 Correct 6 ms 820 KB Output is correct
19 Correct 22 ms 2124 KB Output is correct
20 Correct 98 ms 11964 KB Output is correct
21 Correct 95 ms 12088 KB Output is correct
22 Correct 116 ms 14096 KB Output is correct
23 Correct 101 ms 12600 KB Output is correct
24 Correct 99 ms 12172 KB Output is correct
25 Correct 94 ms 12172 KB Output is correct
26 Correct 123 ms 14660 KB Output is correct
27 Correct 112 ms 13576 KB Output is correct
28 Correct 95 ms 12164 KB Output is correct
29 Correct 102 ms 12612 KB Output is correct
30 Correct 104 ms 12560 KB Output is correct
31 Correct 110 ms 13448 KB Output is correct
32 Correct 98 ms 12516 KB Output is correct
33 Correct 103 ms 13032 KB Output is correct
34 Correct 111 ms 13380 KB Output is correct
35 Correct 104 ms 13168 KB Output is correct
36 Correct 96 ms 12068 KB Output is correct
37 Correct 98 ms 12484 KB Output is correct
38 Correct 108 ms 13252 KB Output is correct
39 Correct 134 ms 14508 KB Output is correct
40 Correct 9 ms 1100 KB Output is correct
41 Correct 31 ms 3028 KB Output is correct
42 Correct 5 ms 716 KB Output is correct
43 Correct 32 ms 3020 KB Output is correct
44 Correct 7 ms 844 KB Output is correct
45 Correct 33 ms 3148 KB Output is correct
46 Correct 94 ms 12104 KB Output is correct
47 Correct 126 ms 13124 KB Output is correct
48 Correct 98 ms 12476 KB Output is correct
49 Correct 123 ms 14528 KB Output is correct
50 Correct 96 ms 12228 KB Output is correct
51 Correct 102 ms 12816 KB Output is correct
52 Correct 95 ms 12168 KB Output is correct
53 Correct 123 ms 14732 KB Output is correct
54 Correct 97 ms 12168 KB Output is correct
55 Correct 96 ms 12308 KB Output is correct
56 Correct 121 ms 14532 KB Output is correct
57 Correct 123 ms 14740 KB Output is correct
58 Correct 96 ms 12516 KB Output is correct
59 Correct 115 ms 13572 KB Output is correct
60 Correct 119 ms 14564 KB Output is correct
61 Correct 131 ms 15072 KB Output is correct
62 Correct 93 ms 11944 KB Output is correct
63 Correct 103 ms 12584 KB Output is correct
64 Correct 104 ms 12704 KB Output is correct
65 Correct 132 ms 14532 KB Output is correct