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Submission #705909

# Submission time Handle Problem Language Result Execution time Memory
705909 2023-03-05T15:53:03 Z Gital Autobus (COCI22_autobus) C++11
70 / 70
 386 ms 9676 KB 
#include<bits/stdc++.h>
using namespace std;
#define endl '\n'
typedef long long ll;

ll n,m,a,b,w;
ll k,q,c,d;
ll adj[72][72];
priority_queue<pair<ll,ll>,vector<pair<ll,ll>>,greater<pair<ll,ll>>> pq;
ll dp[72][72][72];
int main() {
    ios::sync_with_stdio(0); cin.tie(0);
    cin >> n >> m;
    for(int i = 0; i < m; i++) {
        cin >> a >> b >> w;
        if(adj[a][b] == 0 || adj[a][b] > w)adj[a][b] = w;
    }
    cin >> k >> q;
    if(k > 70) k = 70;
    for(int i = 0; i < 71; i++) {
        for(int j = 0; j < 71; j++) {
            for(int l= 0; l < 71; l++) dp[i][j][l] = -1;
        }
    }
    for(int j = 1; j <= n; j++) {
        pq.push({0,j});
        for(int i = 0; i < 72; i++) dp[j][j][i] = 0;
        while(!pq.empty()) {
            a = pq.top().first;
            b = pq.top().second;
            pq.pop();
            for(int i = 1; i <= n; i++) {
                bool able = false;
                if(adj[b][i] == 0) continue;
                for(int l = a; l < k; l++) {
                    if(dp[j][b][l] != -1  && (dp[j][i][l + 1] == -1 || dp[j][i][l + 1] > dp[j][b][l] + adj[b][i])) {
                        dp[j][i][l + 1] = dp[j][b][l] + adj[b][i];
                        if(!able) pq.push({l + 1,i});
                        able = true;
                    }
                }

            }
        }
    }
    /*for(int i = 1; i < 5; i++) {
        cout << "i = " << i << endl;
        for(int j = 1; j < 5; j++) {
            cout << "j = " << j << endl;
            for(int l= 0; l < 2; l++)  {
                cout << dp[i][j][l] << ' ';
            }
            cout << endl;
        }
    }*/
    for(int i = 0; i < q; i++) {
        cin >> c >> d;
        cout << dp[c][d][k] << endl;
    }
    return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 2 ms 3156 KB Output is correct
4 Correct 2 ms 3156 KB Output is correct
5 Correct 2 ms 3156 KB Output is correct
6 Correct 2 ms 3156 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3280 KB Output is correct
2 Correct 4 ms 3284 KB Output is correct
3 Correct 6 ms 3288 KB Output is correct
4 Correct 7 ms 3284 KB Output is correct
5 Correct 7 ms 3284 KB Output is correct
6 Correct 9 ms 3340 KB Output is correct
7 Correct 15 ms 3332 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 2 ms 3156 KB Output is correct
4 Correct 2 ms 3156 KB Output is correct
5 Correct 2 ms 3156 KB Output is correct
6 Correct 2 ms 3156 KB Output is correct
7 Correct 9 ms 3284 KB Output is correct
8 Correct 16 ms 3284 KB Output is correct
9 Correct 8 ms 3284 KB Output is correct
10 Correct 21 ms 3288 KB Output is correct
11 Correct 36 ms 3320 KB Output is correct
12 Correct 126 ms 3320 KB Output is correct
13 Correct 105 ms 8820 KB Output is correct
14 Correct 110 ms 9288 KB Output is correct
15 Correct 272 ms 9420 KB Output is correct
16 Correct 149 ms 9388 KB Output is correct
17 Correct 128 ms 9424 KB Output is correct
18 Correct 93 ms 9420 KB Output is correct
19 Correct 244 ms 9456 KB Output is correct
20 Correct 194 ms 9428 KB Output is correct
21 Correct 92 ms 9432 KB Output is correct
22 Correct 112 ms 9432 KB Output is correct
23 Correct 107 ms 9476 KB Output is correct
24 Correct 160 ms 9404 KB Output is correct
25 Correct 99 ms 9548 KB Output is correct
26 Correct 124 ms 9580 KB Output is correct
27 Correct 145 ms 9576 KB Output is correct
28 Correct 141 ms 9592 KB Output is correct
29 Correct 103 ms 9280 KB Output is correct
30 Correct 150 ms 9320 KB Output is correct
31 Correct 234 ms 9292 KB Output is correct
32 Correct 380 ms 9328 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3156 KB Output is correct
2 Correct 2 ms 3156 KB Output is correct
3 Correct 2 ms 3156 KB Output is correct
4 Correct 2 ms 3156 KB Output is correct
5 Correct 2 ms 3156 KB Output is correct
6 Correct 2 ms 3156 KB Output is correct
7 Correct 4 ms 3280 KB Output is correct
8 Correct 4 ms 3284 KB Output is correct
9 Correct 6 ms 3288 KB Output is correct
10 Correct 7 ms 3284 KB Output is correct
11 Correct 7 ms 3284 KB Output is correct
12 Correct 9 ms 3340 KB Output is correct
13 Correct 15 ms 3332 KB Output is correct
14 Correct 9 ms 3284 KB Output is correct
15 Correct 16 ms 3284 KB Output is correct
16 Correct 8 ms 3284 KB Output is correct
17 Correct 21 ms 3288 KB Output is correct
18 Correct 36 ms 3320 KB Output is correct
19 Correct 126 ms 3320 KB Output is correct
20 Correct 105 ms 8820 KB Output is correct
21 Correct 110 ms 9288 KB Output is correct
22 Correct 272 ms 9420 KB Output is correct
23 Correct 149 ms 9388 KB Output is correct
24 Correct 128 ms 9424 KB Output is correct
25 Correct 93 ms 9420 KB Output is correct
26 Correct 244 ms 9456 KB Output is correct
27 Correct 194 ms 9428 KB Output is correct
28 Correct 92 ms 9432 KB Output is correct
29 Correct 112 ms 9432 KB Output is correct
30 Correct 107 ms 9476 KB Output is correct
31 Correct 160 ms 9404 KB Output is correct
32 Correct 99 ms 9548 KB Output is correct
33 Correct 124 ms 9580 KB Output is correct
34 Correct 145 ms 9576 KB Output is correct
35 Correct 141 ms 9592 KB Output is correct
36 Correct 103 ms 9280 KB Output is correct
37 Correct 150 ms 9320 KB Output is correct
38 Correct 234 ms 9292 KB Output is correct
39 Correct 380 ms 9328 KB Output is correct
40 Correct 8 ms 3284 KB Output is correct
41 Correct 15 ms 3264 KB Output is correct
42 Correct 11 ms 3284 KB Output is correct
43 Correct 33 ms 3288 KB Output is correct
44 Correct 33 ms 3328 KB Output is correct
45 Correct 167 ms 3260 KB Output is correct
46 Correct 102 ms 9292 KB Output is correct
47 Correct 195 ms 9384 KB Output is correct
48 Correct 133 ms 9420 KB Output is correct
49 Correct 316 ms 9292 KB Output is correct
50 Correct 103 ms 9420 KB Output is correct
51 Correct 126 ms 9424 KB Output is correct
52 Correct 89 ms 9420 KB Output is correct
53 Correct 236 ms 9548 KB Output is correct
54 Correct 96 ms 9432 KB Output is correct
55 Correct 101 ms 9428 KB Output is correct
56 Correct 211 ms 9432 KB Output is correct
57 Correct 230 ms 9420 KB Output is correct
58 Correct 93 ms 9544 KB Output is correct
59 Correct 181 ms 9592 KB Output is correct
60 Correct 239 ms 9676 KB Output is correct
61 Correct 312 ms 9564 KB Output is correct
62 Correct 94 ms 9288 KB Output is correct
63 Correct 155 ms 9296 KB Output is correct
64 Correct 168 ms 9292 KB Output is correct
65 Correct 386 ms 9420 KB Output is correct