oj.uz

Submission #985983

# Submission time Handle Problem Language Result Execution time Memory
985983 2024-05-19T14:06:14 Z tfgs Toll (BOI17_toll) C++17
100 / 100
 72 ms 82004 KB 
#include <bits/stdc++.h>
using namespace std;
const int inf = 1e9;

#ifdef LOCAL
#include "algo/debug.h"
#endif

#define f first
#define s second
template<class T> using V = vector<T>; 
using vi = V<int>;
using vb = V<bool>;
using vs = V<string>;

#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x) 
#define pb push_back
#define lb lower_bound
#define ub upper_bound
template<class T> int lwb(V<T>& a, const T& b) { return lb(all(a),b)-begin(a); }
template<class T> int upb(V<T>& a, const T& b) { return ub(all(a),b)-begin(a); }

const int max_k = 5, max_n = 5e4;
int k, n, m, q, jump[16][max_n][max_k][max_k];

void solve() {
    cin >> k >> n >> m >> q; 

    for (int stp = 0; stp < 16; stp++) {
        for (int i = 0; i < n; i++) {
            for (int x = 0; x < k; x++) {
                for (int y = 0; y < k; y++) {
                    jump[stp][i][x][y] = inf;
                }
            }
        }
    }
    for (int i = 0; i < m; i++) {
        int u, v, w; cin >> u >> v >> w;
        jump[0][u/k][u%k][v%k] = w;
    }

    for (int stp = 1; stp < 16; stp++) {
        for (int i = 0; i < (n-1)/k; i++) if (i + (1 << (stp-1)) <= (n-1)/k){
            for (int z = 0; z < k; z++) {
                for (int x = 0; x < k; x++) {
                    for (int y = 0; y < k; y++) {
                        jump[stp][i][x][y] = min(jump[stp][i][x][y], jump[stp-1][i][x][z]+jump[stp-1][i+(1 << (stp-1))][z][y]);
                    }
                }
            }
        }
    }

    for (int i = 0; i < q; i++) {
        vi dist(k, inf);
        int u, v; cin >> u >> v;
        int gap = v/k - u/k;
        int pos = u/k;
        int x = u%k;
        dist[x] = 0;
        for (int stp = 15; stp >= 0; stp--) if (gap & (1 << stp)) {
            auto DIST = dist;
            dist.assign(k, inf);
            for (int z = 0; z < k; z++) {
                for (int y = 0; y < k; y++) {
                    dist[y] = min(dist[y], DIST[z]+jump[stp][pos][z][y]);
                }
            }
            pos += 1 << stp;
        }

        int ans = dist[v%k];
        if (ans == inf) ans = -1;
        cout << ans << '\n';
    }
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    solve();
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 79700 KB Output is correct
2 Correct 3 ms 31068 KB Output is correct
3 Correct 5 ms 31068 KB Output is correct
4 Correct 4 ms 31068 KB Output is correct
5 Correct 5 ms 33416 KB Output is correct
6 Correct 5 ms 33372 KB Output is correct
7 Correct 4 ms 33368 KB Output is correct
8 Correct 42 ms 79452 KB Output is correct
9 Correct 42 ms 79452 KB Output is correct
10 Correct 34 ms 78688 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 80236 KB Output is correct
2 Correct 4 ms 31068 KB Output is correct
3 Correct 4 ms 31068 KB Output is correct
4 Correct 4 ms 31068 KB Output is correct
5 Correct 4 ms 31068 KB Output is correct
6 Correct 4 ms 31068 KB Output is correct
7 Correct 8 ms 33404 KB Output is correct
8 Correct 8 ms 33372 KB Output is correct
9 Correct 36 ms 79612 KB Output is correct
10 Correct 49 ms 80976 KB Output is correct
11 Correct 41 ms 80468 KB Output is correct
12 Correct 42 ms 79996 KB Output is correct
13 Correct 49 ms 80976 KB Output is correct
14 Correct 33 ms 79964 KB Output is correct
15 Correct 37 ms 79816 KB Output is correct
16 Correct 38 ms 79708 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 31064 KB Output is correct
2 Correct 4 ms 31068 KB Output is correct
3 Correct 4 ms 31068 KB Output is correct
4 Correct 4 ms 31236 KB Output is correct
5 Correct 4 ms 31240 KB Output is correct
6 Correct 4 ms 33368 KB Output is correct
7 Correct 5 ms 33372 KB Output is correct
8 Correct 5 ms 33452 KB Output is correct
9 Correct 5 ms 33368 KB Output is correct
10 Correct 30 ms 79440 KB Output is correct
11 Correct 33 ms 80016 KB Output is correct
12 Correct 43 ms 80888 KB Output is correct
13 Correct 44 ms 80936 KB Output is correct
14 Correct 44 ms 80596 KB Output is correct
15 Correct 35 ms 79708 KB Output is correct
16 Correct 34 ms 79708 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 31064 KB Output is correct
2 Correct 4 ms 31068 KB Output is correct
3 Correct 4 ms 31068 KB Output is correct
4 Correct 4 ms 31236 KB Output is correct
5 Correct 4 ms 31240 KB Output is correct
6 Correct 4 ms 33368 KB Output is correct
7 Correct 5 ms 33372 KB Output is correct
8 Correct 5 ms 33452 KB Output is correct
9 Correct 5 ms 33368 KB Output is correct
10 Correct 30 ms 79440 KB Output is correct
11 Correct 33 ms 80016 KB Output is correct
12 Correct 43 ms 80888 KB Output is correct
13 Correct 44 ms 80936 KB Output is correct
14 Correct 44 ms 80596 KB Output is correct
15 Correct 35 ms 79708 KB Output is correct
16 Correct 34 ms 79708 KB Output is correct
17 Correct 36 ms 80292 KB Output is correct
18 Correct 4 ms 31068 KB Output is correct
19 Correct 4 ms 31064 KB Output is correct
20 Correct 4 ms 31068 KB Output is correct
21 Correct 4 ms 31068 KB Output is correct
22 Correct 4 ms 31068 KB Output is correct
23 Correct 7 ms 33880 KB Output is correct
24 Correct 5 ms 33436 KB Output is correct
25 Correct 6 ms 33372 KB Output is correct
26 Correct 6 ms 33372 KB Output is correct
27 Correct 33 ms 79452 KB Output is correct
28 Correct 45 ms 80760 KB Output is correct
29 Correct 47 ms 80988 KB Output is correct
30 Correct 41 ms 80468 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 79700 KB Output is correct
2 Correct 3 ms 31068 KB Output is correct
3 Correct 5 ms 31068 KB Output is correct
4 Correct 4 ms 31068 KB Output is correct
5 Correct 5 ms 33416 KB Output is correct
6 Correct 5 ms 33372 KB Output is correct
7 Correct 4 ms 33368 KB Output is correct
8 Correct 42 ms 79452 KB Output is correct
9 Correct 42 ms 79452 KB Output is correct
10 Correct 34 ms 78688 KB Output is correct
11 Correct 44 ms 80236 KB Output is correct
12 Correct 4 ms 31068 KB Output is correct
13 Correct 4 ms 31068 KB Output is correct
14 Correct 4 ms 31068 KB Output is correct
15 Correct 4 ms 31068 KB Output is correct
16 Correct 4 ms 31068 KB Output is correct
17 Correct 8 ms 33404 KB Output is correct
18 Correct 8 ms 33372 KB Output is correct
19 Correct 36 ms 79612 KB Output is correct
20 Correct 49 ms 80976 KB Output is correct
21 Correct 41 ms 80468 KB Output is correct
22 Correct 42 ms 79996 KB Output is correct
23 Correct 49 ms 80976 KB Output is correct
24 Correct 33 ms 79964 KB Output is correct
25 Correct 37 ms 79816 KB Output is correct
26 Correct 38 ms 79708 KB Output is correct
27 Correct 4 ms 31064 KB Output is correct
28 Correct 4 ms 31068 KB Output is correct
29 Correct 4 ms 31068 KB Output is correct
30 Correct 4 ms 31236 KB Output is correct
31 Correct 4 ms 31240 KB Output is correct
32 Correct 4 ms 33368 KB Output is correct
33 Correct 5 ms 33372 KB Output is correct
34 Correct 5 ms 33452 KB Output is correct
35 Correct 5 ms 33368 KB Output is correct
36 Correct 30 ms 79440 KB Output is correct
37 Correct 33 ms 80016 KB Output is correct
38 Correct 43 ms 80888 KB Output is correct
39 Correct 44 ms 80936 KB Output is correct
40 Correct 44 ms 80596 KB Output is correct
41 Correct 35 ms 79708 KB Output is correct
42 Correct 34 ms 79708 KB Output is correct
43 Correct 36 ms 80292 KB Output is correct
44 Correct 4 ms 31068 KB Output is correct
45 Correct 4 ms 31064 KB Output is correct
46 Correct 4 ms 31068 KB Output is correct
47 Correct 4 ms 31068 KB Output is correct
48 Correct 4 ms 31068 KB Output is correct
49 Correct 7 ms 33880 KB Output is correct
50 Correct 5 ms 33436 KB Output is correct
51 Correct 6 ms 33372 KB Output is correct
52 Correct 6 ms 33372 KB Output is correct
53 Correct 33 ms 79452 KB Output is correct
54 Correct 45 ms 80760 KB Output is correct
55 Correct 47 ms 80988 KB Output is correct
56 Correct 41 ms 80468 KB Output is correct
57 Correct 72 ms 82004 KB Output is correct
58 Correct 41 ms 79448 KB Output is correct
59 Correct 44 ms 80464 KB Output is correct