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Submission #1005372

# Submission time Handle Problem Language Result Execution time Memory
1005372 2024-06-22T11:22:17 Z tvladm2009 Toll (BOI17_toll) C++17
100 / 100
 99 ms 170064 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;

const int N = 5e4 + 7;
const ll INF = 1e18;

int k, n, m, o;

struct Matrix {
    ll mat[5][5];
        
    Matrix() {
        for (int x = 0; x < 5; ++x) {
            for (int y = 0; y < 5; ++y) {
                mat[x][y] = INF;
            }
        }
    }

    Matrix operator * (Matrix other) {
        Matrix c;
        for (int x = 0; x < k; ++x) {
            for (int y = 0; y < k; ++y) {
                for (int z = 0; z < k; ++z) {
                    c.mat[x][y] = min(c.mat[x][y], mat[x][z] + other.mat[z][y]);
                }
            }
        }
        return c;
    }
};

Matrix dist[N][17];

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin >> k >> n >> m >> o;
    while (m--) {
        int a, b, t;
        cin >> a >> b >> t;
        dist[a / k][0].mat[a % k][b % k] = t;
    }
    int layers = (n + k - 1) / k;
    for (int j = 1; j < 17; ++j) {
        for (int i = 0; i + (1 << j) < layers; ++i) {
            dist[i][j] = dist[i][j - 1] * dist[i + (1 << (j - 1))][j - 1];;
        }
    }

    while (o--) {
        int a, b;
        cin >> a >> b;
        Matrix ans;
        for (int i = 0; i < 5; ++i) {
            ans.mat[i][i] = 0;
        }
        int cur = a / k;
        for (int i = 16; i >= 0; --i) {
            if (cur + (1 << i) <= b / k) {
                ans = ans * dist[cur][i];
                cur += (1 << i);
            }
        }
        cout << (ans.mat[a % k][b % k] == INF ? -1 : ans.mat[a % k][b % k]) << "\n";
    }
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 166740 KB Output is correct
2 Correct 20 ms 166760 KB Output is correct
3 Correct 20 ms 166744 KB Output is correct
4 Correct 19 ms 166748 KB Output is correct
5 Correct 21 ms 166748 KB Output is correct
6 Correct 20 ms 166744 KB Output is correct
7 Correct 21 ms 166744 KB Output is correct
8 Correct 87 ms 166744 KB Output is correct
9 Correct 86 ms 166744 KB Output is correct
10 Correct 76 ms 166748 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 167276 KB Output is correct
2 Correct 20 ms 166736 KB Output is correct
3 Correct 21 ms 166736 KB Output is correct
4 Correct 19 ms 166744 KB Output is correct
5 Correct 21 ms 166736 KB Output is correct
6 Correct 18 ms 166748 KB Output is correct
7 Correct 23 ms 166748 KB Output is correct
8 Correct 23 ms 166692 KB Output is correct
9 Correct 88 ms 166796 KB Output is correct
10 Correct 55 ms 166736 KB Output is correct
11 Correct 60 ms 166748 KB Output is correct
12 Correct 49 ms 166740 KB Output is correct
13 Correct 51 ms 166748 KB Output is correct
14 Correct 41 ms 167328 KB Output is correct
15 Correct 40 ms 168020 KB Output is correct
16 Correct 40 ms 167508 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 166740 KB Output is correct
2 Correct 18 ms 166748 KB Output is correct
3 Correct 18 ms 166748 KB Output is correct
4 Correct 20 ms 166820 KB Output is correct
5 Correct 19 ms 166748 KB Output is correct
6 Correct 20 ms 166608 KB Output is correct
7 Correct 19 ms 166748 KB Output is correct
8 Correct 19 ms 166756 KB Output is correct
9 Correct 19 ms 166696 KB Output is correct
10 Correct 82 ms 167248 KB Output is correct
11 Correct 54 ms 168276 KB Output is correct
12 Correct 53 ms 168868 KB Output is correct
13 Correct 57 ms 169296 KB Output is correct
14 Correct 56 ms 168484 KB Output is correct
15 Correct 36 ms 167084 KB Output is correct
16 Correct 36 ms 167820 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 166740 KB Output is correct
2 Correct 18 ms 166748 KB Output is correct
3 Correct 18 ms 166748 KB Output is correct
4 Correct 20 ms 166820 KB Output is correct
5 Correct 19 ms 166748 KB Output is correct
6 Correct 20 ms 166608 KB Output is correct
7 Correct 19 ms 166748 KB Output is correct
8 Correct 19 ms 166756 KB Output is correct
9 Correct 19 ms 166696 KB Output is correct
10 Correct 82 ms 167248 KB Output is correct
11 Correct 54 ms 168276 KB Output is correct
12 Correct 53 ms 168868 KB Output is correct
13 Correct 57 ms 169296 KB Output is correct
14 Correct 56 ms 168484 KB Output is correct
15 Correct 36 ms 167084 KB Output is correct
16 Correct 36 ms 167820 KB Output is correct
17 Correct 56 ms 168272 KB Output is correct
18 Correct 22 ms 166740 KB Output is correct
19 Correct 18 ms 166604 KB Output is correct
20 Correct 20 ms 166748 KB Output is correct
21 Correct 20 ms 166748 KB Output is correct
22 Correct 20 ms 166748 KB Output is correct
23 Correct 22 ms 166740 KB Output is correct
24 Correct 20 ms 166740 KB Output is correct
25 Correct 21 ms 166748 KB Output is correct
26 Correct 21 ms 166656 KB Output is correct
27 Correct 81 ms 167420 KB Output is correct
28 Correct 52 ms 167628 KB Output is correct
29 Correct 55 ms 169040 KB Output is correct
30 Correct 52 ms 168064 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 166740 KB Output is correct
2 Correct 20 ms 166760 KB Output is correct
3 Correct 20 ms 166744 KB Output is correct
4 Correct 19 ms 166748 KB Output is correct
5 Correct 21 ms 166748 KB Output is correct
6 Correct 20 ms 166744 KB Output is correct
7 Correct 21 ms 166744 KB Output is correct
8 Correct 87 ms 166744 KB Output is correct
9 Correct 86 ms 166744 KB Output is correct
10 Correct 76 ms 166748 KB Output is correct
11 Correct 59 ms 167276 KB Output is correct
12 Correct 20 ms 166736 KB Output is correct
13 Correct 21 ms 166736 KB Output is correct
14 Correct 19 ms 166744 KB Output is correct
15 Correct 21 ms 166736 KB Output is correct
16 Correct 18 ms 166748 KB Output is correct
17 Correct 23 ms 166748 KB Output is correct
18 Correct 23 ms 166692 KB Output is correct
19 Correct 88 ms 166796 KB Output is correct
20 Correct 55 ms 166736 KB Output is correct
21 Correct 60 ms 166748 KB Output is correct
22 Correct 49 ms 166740 KB Output is correct
23 Correct 51 ms 166748 KB Output is correct
24 Correct 41 ms 167328 KB Output is correct
25 Correct 40 ms 168020 KB Output is correct
26 Correct 40 ms 167508 KB Output is correct
27 Correct 20 ms 166740 KB Output is correct
28 Correct 18 ms 166748 KB Output is correct
29 Correct 18 ms 166748 KB Output is correct
30 Correct 20 ms 166820 KB Output is correct
31 Correct 19 ms 166748 KB Output is correct
32 Correct 20 ms 166608 KB Output is correct
33 Correct 19 ms 166748 KB Output is correct
34 Correct 19 ms 166756 KB Output is correct
35 Correct 19 ms 166696 KB Output is correct
36 Correct 82 ms 167248 KB Output is correct
37 Correct 54 ms 168276 KB Output is correct
38 Correct 53 ms 168868 KB Output is correct
39 Correct 57 ms 169296 KB Output is correct
40 Correct 56 ms 168484 KB Output is correct
41 Correct 36 ms 167084 KB Output is correct
42 Correct 36 ms 167820 KB Output is correct
43 Correct 56 ms 168272 KB Output is correct
44 Correct 22 ms 166740 KB Output is correct
45 Correct 18 ms 166604 KB Output is correct
46 Correct 20 ms 166748 KB Output is correct
47 Correct 20 ms 166748 KB Output is correct
48 Correct 20 ms 166748 KB Output is correct
49 Correct 22 ms 166740 KB Output is correct
50 Correct 20 ms 166740 KB Output is correct
51 Correct 21 ms 166748 KB Output is correct
52 Correct 21 ms 166656 KB Output is correct
53 Correct 81 ms 167420 KB Output is correct
54 Correct 52 ms 167628 KB Output is correct
55 Correct 55 ms 169040 KB Output is correct
56 Correct 52 ms 168064 KB Output is correct
57 Correct 68 ms 170064 KB Output is correct
58 Correct 99 ms 167768 KB Output is correct
59 Correct 61 ms 168276 KB Output is correct