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Submission #1021126

# Submission time Handle Problem Language Result Execution time Memory
1021126 2024-07-12T14:36:19 Z Khanhcsp2 Autobus (COCI22_autobus) C++14
70 / 70
 114 ms 10576 KB 
#include<bits/stdc++.h>
#define el '\n'
#define fi first
#define sc second
#define int ll
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
using namespace std;
using ll=long long;
using ull=unsigned long long;
using ld=long double;
const int mod=1e9+7;
const int N=81;
int n, m, q, k, adj[N][N], ans[N][N], dp[N][N][N];
void sol()
{
    cin >> n >> m;
    for(int i=1; i<=n; i++) for(int j=1; j<=n; j++) if(i!=j) adj[i][j]=1e9;
    for(int i=0; i<=n; i++) for(int j=0; j<=n; j++) for(int l=0;l<=n;l++) dp[i][j][l]=1e9;
    for(int i=1; i<=m; i++)
    {
        int u, v, w;
        cin >> u >> v >> w;
        adj[u][v]=min(adj[u][v], w);
    }
    for(int i=1; i<=n; i++) dp[0][i][i]=0;
    for(int i=1; i<=n; i++) for(int j=1; j<=n; j++) dp[1][i][j] = adj[i][j];
    cin >> k >> q;
    for(int i=2; i<=n; i++)
    {
        for(int j=1; j<=n; j++)
        {
            for(int x=1; x<=n; x++)
            {
                for(int y=1; y<=n; y++)
                {
                    dp[i][j][x]=min(dp[i][j][x], dp[i-1][j][y]+adj[y][x]);
                }
            }
        }
    }
    for(int x=1; x<=n; x++)
    {
        for(int y=1; y<=n; y++)
        {
            if(x!=y) ans[x][y]=1e9;
            for(int i=0; i<=min(n, k); i++)
            {
                ans[x][y]=min(ans[x][y], dp[i][x][y]);
            }
        }
    }
    while(q--)
    {
        int u, v;
        cin >> u >> v;
        if(ans[u][v]==1e9) cout << -1 << el;
        else cout << ans[u][v] << el;
    }
}
signed main()
{
//    freopen("divisor.INP", "r", stdin);
//    freopen("divisor.OUT", "w", stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t=1;
    //cin >> t;
    while(t--)
    {
        sol();
    }
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2512 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 3932 KB Output is correct
2 Correct 18 ms 4104 KB Output is correct
3 Correct 19 ms 4188 KB Output is correct
4 Correct 23 ms 3932 KB Output is correct
5 Correct 19 ms 3932 KB Output is correct
6 Correct 24 ms 4184 KB Output is correct
7 Correct 19 ms 4160 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2512 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 19 ms 4176 KB Output is correct
8 Correct 20 ms 4188 KB Output is correct
9 Correct 19 ms 4116 KB Output is correct
10 Correct 19 ms 3932 KB Output is correct
11 Correct 19 ms 4148 KB Output is correct
12 Correct 19 ms 4184 KB Output is correct
13 Correct 84 ms 10344 KB Output is correct
14 Correct 87 ms 10068 KB Output is correct
15 Correct 85 ms 10200 KB Output is correct
16 Correct 83 ms 10204 KB Output is correct
17 Correct 87 ms 10320 KB Output is correct
18 Correct 91 ms 10316 KB Output is correct
19 Correct 87 ms 10324 KB Output is correct
20 Correct 87 ms 10188 KB Output is correct
21 Correct 85 ms 10316 KB Output is correct
22 Correct 89 ms 10180 KB Output is correct
23 Correct 80 ms 10324 KB Output is correct
24 Correct 90 ms 10200 KB Output is correct
25 Correct 88 ms 10320 KB Output is correct
26 Correct 86 ms 10316 KB Output is correct
27 Correct 85 ms 10576 KB Output is correct
28 Correct 82 ms 10320 KB Output is correct
29 Correct 101 ms 10180 KB Output is correct
30 Correct 85 ms 10064 KB Output is correct
31 Correct 83 ms 10200 KB Output is correct
32 Correct 83 ms 10064 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2512 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 19 ms 3932 KB Output is correct
8 Correct 18 ms 4104 KB Output is correct
9 Correct 19 ms 4188 KB Output is correct
10 Correct 23 ms 3932 KB Output is correct
11 Correct 19 ms 3932 KB Output is correct
12 Correct 24 ms 4184 KB Output is correct
13 Correct 19 ms 4160 KB Output is correct
14 Correct 19 ms 4176 KB Output is correct
15 Correct 20 ms 4188 KB Output is correct
16 Correct 19 ms 4116 KB Output is correct
17 Correct 19 ms 3932 KB Output is correct
18 Correct 19 ms 4148 KB Output is correct
19 Correct 19 ms 4184 KB Output is correct
20 Correct 84 ms 10344 KB Output is correct
21 Correct 87 ms 10068 KB Output is correct
22 Correct 85 ms 10200 KB Output is correct
23 Correct 83 ms 10204 KB Output is correct
24 Correct 87 ms 10320 KB Output is correct
25 Correct 91 ms 10316 KB Output is correct
26 Correct 87 ms 10324 KB Output is correct
27 Correct 87 ms 10188 KB Output is correct
28 Correct 85 ms 10316 KB Output is correct
29 Correct 89 ms 10180 KB Output is correct
30 Correct 80 ms 10324 KB Output is correct
31 Correct 90 ms 10200 KB Output is correct
32 Correct 88 ms 10320 KB Output is correct
33 Correct 86 ms 10316 KB Output is correct
34 Correct 85 ms 10576 KB Output is correct
35 Correct 82 ms 10320 KB Output is correct
36 Correct 101 ms 10180 KB Output is correct
37 Correct 85 ms 10064 KB Output is correct
38 Correct 83 ms 10200 KB Output is correct
39 Correct 83 ms 10064 KB Output is correct
40 Correct 21 ms 4176 KB Output is correct
41 Correct 18 ms 4180 KB Output is correct
42 Correct 20 ms 3928 KB Output is correct
43 Correct 19 ms 4188 KB Output is correct
44 Correct 19 ms 4188 KB Output is correct
45 Correct 20 ms 4188 KB Output is correct
46 Correct 82 ms 10064 KB Output is correct
47 Correct 84 ms 10076 KB Output is correct
48 Correct 105 ms 10060 KB Output is correct
49 Correct 81 ms 10072 KB Output is correct
50 Correct 114 ms 10320 KB Output is correct
51 Correct 93 ms 10196 KB Output is correct
52 Correct 83 ms 10196 KB Output is correct
53 Correct 95 ms 10204 KB Output is correct
54 Correct 83 ms 10328 KB Output is correct
55 Correct 85 ms 10320 KB Output is correct
56 Correct 99 ms 10324 KB Output is correct
57 Correct 87 ms 10324 KB Output is correct
58 Correct 91 ms 10328 KB Output is correct
59 Correct 83 ms 10316 KB Output is correct
60 Correct 97 ms 10452 KB Output is correct
61 Correct 107 ms 10320 KB Output is correct
62 Correct 83 ms 10064 KB Output is correct
63 Correct 105 ms 10184 KB Output is correct
64 Correct 106 ms 10204 KB Output is correct
65 Correct 83 ms 10068 KB Output is correct