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Submission #654685

# Submission time Handle Problem Language Result Execution time Memory
654685 2022-11-01T08:59:35 Z HaYoungJoon Toll (BOI17_toll) C++14
100 / 100
 124 ms 167560 KB 
#include <bits/stdc++.h>
#define ll long long
#define INF 1e18

using namespace std;

ll dp[50001][17][5][5],K,n,m,Q, ans[5][5], tmp[5][5];

void combine(ll target[5][5], ll a[5][5], ll b[5][5]) {
    for (int i = 0; i < K; i++)
    for (int j = 0; j < K; j++) {
        target[i][j] = INF;
        for (int mid = 0; mid < K; mid++)
            target[i][j] = min(target[i][j],a[i][mid] + b[mid][j]);
    }
}

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> K >> n >> m >> Q;
    int maxU = n/K + (n % K != 0);
    for (int i = 0; i <= maxU; i++)
        for (int j = 0; j <= 16; j++)
            for (int k = 0; k < K; k++)
                for (int l = 0; l < K; l++) dp[i][j][k][l] = INF;
    for (int i = 1; i <= m; i++) {
        int u,v,w;
        cin >> u >> v >> w;
        dp[u/K][0][u%K][v%K] = w;
    }
    for (int i = maxU; i >= 0; i--) {
        for (int j = 1; i + (1 << j) - 1 <= maxU; j++) {
            combine(dp[i][j],dp[i][j-1],dp[i + (1 << (j-1))][j-1]);
        }
    }
    while (Q--) {
        int u,v;
        cin >> u >> v;
        int U = u/K, V = v/K;
        for (int i = 0; i < K; i++)
            for (int j = 0; j < K; j++)
                if (i != j) ans[i][j] = INF;
                else ans[i][j] = 0;
        for (int i = 16; i >= 0; i--) {
            if (U + (1 << i) <= V) {
                for (int i = 0; i < K; i++)
                    for (int j = 0; j < K; j++) tmp[i][j] = ans[i][j];
                combine(ans,tmp,dp[U][i]);
                U += (1 << i);
            }
        }
        if (ans[u % K][v % K] == INF) cout << "-1\n";
        else cout << ans[u % K][v % K] << '\n';
    }
    return 0;
}
/*
5 14 5 5
0 5 9
5 12 10
0 7 7
7 12 8
4 7 10
0 12
0 5
0 7
7 12
0 13
*/

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 114 ms 167560 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 3 ms 3664 KB Output is correct
6 Correct 2 ms 3668 KB Output is correct
7 Correct 3 ms 3668 KB Output is correct
8 Correct 124 ms 167560 KB Output is correct
9 Correct 106 ms 167524 KB Output is correct
10 Correct 96 ms 166696 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 85056 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 6 ms 3668 KB Output is correct
8 Correct 5 ms 2132 KB Output is correct
9 Correct 123 ms 167520 KB Output is correct
10 Correct 107 ms 58060 KB Output is correct
11 Correct 114 ms 85168 KB Output is correct
12 Correct 68 ms 57024 KB Output is correct
13 Correct 67 ms 22696 KB Output is correct
14 Correct 56 ms 34980 KB Output is correct
15 Correct 60 ms 21440 KB Output is correct
16 Correct 56 ms 21420 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 328 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 2 ms 3668 KB Output is correct
7 Correct 3 ms 1968 KB Output is correct
8 Correct 2 ms 1060 KB Output is correct
9 Correct 2 ms 1108 KB Output is correct
10 Correct 97 ms 167328 KB Output is correct
11 Correct 85 ms 85004 KB Output is correct
12 Correct 75 ms 57924 KB Output is correct
13 Correct 86 ms 58164 KB Output is correct
14 Correct 79 ms 57572 KB Output is correct
15 Correct 44 ms 21464 KB Output is correct
16 Correct 44 ms 21460 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 328 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 2 ms 3668 KB Output is correct
7 Correct 3 ms 1968 KB Output is correct
8 Correct 2 ms 1060 KB Output is correct
9 Correct 2 ms 1108 KB Output is correct
10 Correct 97 ms 167328 KB Output is correct
11 Correct 85 ms 85004 KB Output is correct
12 Correct 75 ms 57924 KB Output is correct
13 Correct 86 ms 58164 KB Output is correct
14 Correct 79 ms 57572 KB Output is correct
15 Correct 44 ms 21464 KB Output is correct
16 Correct 44 ms 21460 KB Output is correct
17 Correct 75 ms 85032 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 3 ms 3668 KB Output is correct
24 Correct 2 ms 2000 KB Output is correct
25 Correct 4 ms 980 KB Output is correct
26 Correct 3 ms 1236 KB Output is correct
27 Correct 109 ms 167484 KB Output is correct
28 Correct 80 ms 57920 KB Output is correct
29 Correct 108 ms 58180 KB Output is correct
30 Correct 73 ms 57544 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 114 ms 167560 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 3 ms 3664 KB Output is correct
6 Correct 2 ms 3668 KB Output is correct
7 Correct 3 ms 3668 KB Output is correct
8 Correct 124 ms 167560 KB Output is correct
9 Correct 106 ms 167524 KB Output is correct
10 Correct 96 ms 166696 KB Output is correct
11 Correct 87 ms 85056 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 6 ms 3668 KB Output is correct
18 Correct 5 ms 2132 KB Output is correct
19 Correct 123 ms 167520 KB Output is correct
20 Correct 107 ms 58060 KB Output is correct
21 Correct 114 ms 85168 KB Output is correct
22 Correct 68 ms 57024 KB Output is correct
23 Correct 67 ms 22696 KB Output is correct
24 Correct 56 ms 34980 KB Output is correct
25 Correct 60 ms 21440 KB Output is correct
26 Correct 56 ms 21420 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 328 KB Output is correct
29 Correct 1 ms 328 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 328 KB Output is correct
32 Correct 2 ms 3668 KB Output is correct
33 Correct 3 ms 1968 KB Output is correct
34 Correct 2 ms 1060 KB Output is correct
35 Correct 2 ms 1108 KB Output is correct
36 Correct 97 ms 167328 KB Output is correct
37 Correct 85 ms 85004 KB Output is correct
38 Correct 75 ms 57924 KB Output is correct
39 Correct 86 ms 58164 KB Output is correct
40 Correct 79 ms 57572 KB Output is correct
41 Correct 44 ms 21464 KB Output is correct
42 Correct 44 ms 21460 KB Output is correct
43 Correct 75 ms 85032 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 1 ms 212 KB Output is correct
49 Correct 3 ms 3668 KB Output is correct
50 Correct 2 ms 2000 KB Output is correct
51 Correct 4 ms 980 KB Output is correct
52 Correct 3 ms 1236 KB Output is correct
53 Correct 109 ms 167484 KB Output is correct
54 Correct 80 ms 57920 KB Output is correct
55 Correct 108 ms 58180 KB Output is correct
56 Correct 73 ms 57544 KB Output is correct
57 Correct 99 ms 45216 KB Output is correct
58 Correct 122 ms 167524 KB Output is correct
59 Correct 90 ms 85244 KB Output is correct