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Submission #388368

# Submission time Handle Problem Language Result Execution time Memory
388368 2021-04-11T06:26:10 Z Sara Toll (BOI17_toll) C++14
100 / 100
 182 ms 55380 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;

#define ll long long
#define F first
#define S second
#define pb push_back
#define lc (ind << 1)
#define rc (lc | 1)
#define md ((b + e) >> 1)

const ll N = 5e4 + 5;
const ll M = 5 + 3;
const ll LOG = 17;
const ll INF = 1e18 + 5;
const ll ziad = 1e9 + 5;
const ll MOD = 1e9 + 7;

int k, n, m, q;
ll dis[N][LOG][M];
ll dist[2][M];

inline void build(){
    int ghar = (n - 1) / k;
    for (int i = 1; i < LOG; i ++){
        for (int A = 0; A < n; A ++){
            int X = A / k;
            int Y = X + (1 << (i - 1));
            int Z = Y + (1 << (i - 1));
            if (ghar < Z) break; 
            for (int j = 0; j < k; j ++){
                int B = Y * k + j;
                if (n <= B) break;
                for (int l = 0; l < k; l ++){
                    int C = Z * k + l;
                    if (n <= C) break;
                    dis[A][i][l] = min(dis[A][i][l], dis[A][i - 1][j] + dis[B][i - 1][l]);    
                }
            }
        }
    }
    return;
}

inline ll get(int s, int e){
    if (e / k <= s / k) return -1;
    memset(dist, 63, sizeof dist);
    dist[0][s % k] = 0;
    ll state = s / k;
    ll dif = e / k - s / k;
    for (int i = LOG - 1; i >= 0; i --){
        if ((dif >> i) & 1){
            for (int a = 0; a < k; a ++){
                int A = state * k + a;
                if (n <= A) break;
                for (int b = 0; b < k; b ++){
                    int B = (state + (1 << i)) * k + b;
                    if (n <= B) break;
                    dist[1][b] = min(dist[1][b], dist[0][a] + dis[A][i][b]);
                }
            }
            for (int j = 0; j < k; j ++){
                dist[0][j] = dist[1][j];
                dist[1][j] = INF;
            }
            state += (1 << i);
        }
    }
    if (ziad < dist[0][e % k]) return -1;
    return dist[0][e % k];
}

int main() {
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    memset(dis, 63, sizeof dis);
    cin >> k >> n >> m >> q;
    for (int i = 0; i < m; i ++){
        int u, v, w;
        cin >> u >> v >> w;
        dis[u][0][v % k] = w;
    }
    build();
    while (q --){
        int s, e;
        cin >> s >> e;
        cout << get(s, e) << '\n';
    }
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 53516 KB Output is correct
2 Correct 22 ms 53452 KB Output is correct
3 Correct 23 ms 53504 KB Output is correct
4 Correct 25 ms 53452 KB Output is correct
5 Correct 25 ms 53548 KB Output is correct
6 Correct 25 ms 53496 KB Output is correct
7 Correct 24 ms 53492 KB Output is correct
8 Correct 74 ms 54412 KB Output is correct
9 Correct 68 ms 54408 KB Output is correct
10 Correct 51 ms 53676 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 88 ms 53528 KB Output is correct
2 Correct 24 ms 53452 KB Output is correct
3 Correct 24 ms 53480 KB Output is correct
4 Correct 22 ms 53516 KB Output is correct
5 Correct 22 ms 53456 KB Output is correct
6 Correct 24 ms 53524 KB Output is correct
7 Correct 27 ms 53560 KB Output is correct
8 Correct 27 ms 53696 KB Output is correct
9 Correct 67 ms 54408 KB Output is correct
10 Correct 103 ms 55236 KB Output is correct
11 Correct 106 ms 55176 KB Output is correct
12 Correct 87 ms 54804 KB Output is correct
13 Correct 132 ms 55380 KB Output is correct
14 Correct 65 ms 54936 KB Output is correct
15 Correct 92 ms 54668 KB Output is correct
16 Correct 94 ms 54772 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 53516 KB Output is correct
2 Correct 23 ms 53452 KB Output is correct
3 Correct 23 ms 53532 KB Output is correct
4 Correct 27 ms 53448 KB Output is correct
5 Correct 23 ms 53544 KB Output is correct
6 Correct 24 ms 53456 KB Output is correct
7 Correct 23 ms 53452 KB Output is correct
8 Correct 24 ms 53572 KB Output is correct
9 Correct 24 ms 53584 KB Output is correct
10 Correct 60 ms 54256 KB Output is correct
11 Correct 80 ms 54980 KB Output is correct
12 Correct 97 ms 55236 KB Output is correct
13 Correct 102 ms 55196 KB Output is correct
14 Correct 86 ms 55192 KB Output is correct
15 Correct 90 ms 54664 KB Output is correct
16 Correct 89 ms 54704 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 53516 KB Output is correct
2 Correct 23 ms 53452 KB Output is correct
3 Correct 23 ms 53532 KB Output is correct
4 Correct 27 ms 53448 KB Output is correct
5 Correct 23 ms 53544 KB Output is correct
6 Correct 24 ms 53456 KB Output is correct
7 Correct 23 ms 53452 KB Output is correct
8 Correct 24 ms 53572 KB Output is correct
9 Correct 24 ms 53584 KB Output is correct
10 Correct 60 ms 54256 KB Output is correct
11 Correct 80 ms 54980 KB Output is correct
12 Correct 97 ms 55236 KB Output is correct
13 Correct 102 ms 55196 KB Output is correct
14 Correct 86 ms 55192 KB Output is correct
15 Correct 90 ms 54664 KB Output is correct
16 Correct 89 ms 54704 KB Output is correct
17 Correct 81 ms 55068 KB Output is correct
18 Correct 25 ms 53540 KB Output is correct
19 Correct 25 ms 53580 KB Output is correct
20 Correct 24 ms 53452 KB Output is correct
21 Correct 24 ms 53520 KB Output is correct
22 Correct 24 ms 53444 KB Output is correct
23 Correct 27 ms 53528 KB Output is correct
24 Correct 27 ms 53508 KB Output is correct
25 Correct 27 ms 53644 KB Output is correct
26 Correct 27 ms 53564 KB Output is correct
27 Correct 65 ms 54340 KB Output is correct
28 Correct 112 ms 55176 KB Output is correct
29 Correct 101 ms 55268 KB Output is correct
30 Correct 101 ms 55232 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 53516 KB Output is correct
2 Correct 22 ms 53452 KB Output is correct
3 Correct 23 ms 53504 KB Output is correct
4 Correct 25 ms 53452 KB Output is correct
5 Correct 25 ms 53548 KB Output is correct
6 Correct 25 ms 53496 KB Output is correct
7 Correct 24 ms 53492 KB Output is correct
8 Correct 74 ms 54412 KB Output is correct
9 Correct 68 ms 54408 KB Output is correct
10 Correct 51 ms 53676 KB Output is correct
11 Correct 88 ms 53528 KB Output is correct
12 Correct 24 ms 53452 KB Output is correct
13 Correct 24 ms 53480 KB Output is correct
14 Correct 22 ms 53516 KB Output is correct
15 Correct 22 ms 53456 KB Output is correct
16 Correct 24 ms 53524 KB Output is correct
17 Correct 27 ms 53560 KB Output is correct
18 Correct 27 ms 53696 KB Output is correct
19 Correct 67 ms 54408 KB Output is correct
20 Correct 103 ms 55236 KB Output is correct
21 Correct 106 ms 55176 KB Output is correct
22 Correct 87 ms 54804 KB Output is correct
23 Correct 132 ms 55380 KB Output is correct
24 Correct 65 ms 54936 KB Output is correct
25 Correct 92 ms 54668 KB Output is correct
26 Correct 94 ms 54772 KB Output is correct
27 Correct 29 ms 53516 KB Output is correct
28 Correct 23 ms 53452 KB Output is correct
29 Correct 23 ms 53532 KB Output is correct
30 Correct 27 ms 53448 KB Output is correct
31 Correct 23 ms 53544 KB Output is correct
32 Correct 24 ms 53456 KB Output is correct
33 Correct 23 ms 53452 KB Output is correct
34 Correct 24 ms 53572 KB Output is correct
35 Correct 24 ms 53584 KB Output is correct
36 Correct 60 ms 54256 KB Output is correct
37 Correct 80 ms 54980 KB Output is correct
38 Correct 97 ms 55236 KB Output is correct
39 Correct 102 ms 55196 KB Output is correct
40 Correct 86 ms 55192 KB Output is correct
41 Correct 90 ms 54664 KB Output is correct
42 Correct 89 ms 54704 KB Output is correct
43 Correct 81 ms 55068 KB Output is correct
44 Correct 25 ms 53540 KB Output is correct
45 Correct 25 ms 53580 KB Output is correct
46 Correct 24 ms 53452 KB Output is correct
47 Correct 24 ms 53520 KB Output is correct
48 Correct 24 ms 53444 KB Output is correct
49 Correct 27 ms 53528 KB Output is correct
50 Correct 27 ms 53508 KB Output is correct
51 Correct 27 ms 53644 KB Output is correct
52 Correct 27 ms 53564 KB Output is correct
53 Correct 65 ms 54340 KB Output is correct
54 Correct 112 ms 55176 KB Output is correct
55 Correct 101 ms 55268 KB Output is correct
56 Correct 101 ms 55232 KB Output is correct
57 Correct 182 ms 55268 KB Output is correct
58 Correct 71 ms 54448 KB Output is correct
59 Correct 90 ms 55304 KB Output is correct