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Submission #260433

# Submission time Handle Problem Language Result Execution time Memory
260433 2020-08-10T09:05:00 Z dolphingarlic Toll (BOI17_toll) C++14
100 / 100
 180 ms 86904 KB 
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

int k, n, m, o;
int dp[50000][17][5][5], ans[5][5], tmp[5][5];

void combine(int target[5][5], int a[5][5], int b[5][5]) {
    for (int x = 0; x < k; x++) {
        for (int y = 0; y < k; y++) {
            for (int z = 0; z < k; z++) {
                target[x][y] = min(target[x][y], a[x][z] + b[z][y]);
            }
        }
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> k >> n >> m >> o;
    memset(dp, 0x3f, sizeof dp);
    while (m--) {
        int a, b, t;
        cin >> a >> b >> t;
        dp[a / k][0][a % k][b % k] = t;
    }
    for (int j = 1; j < 17; j++) {
        for (int i = 0; i + (1 << j) < (n + k - 1) / k; i++) {
            combine(dp[i][j], dp[i][j - 1], dp[i + (1 << j - 1)][j - 1]);
        }
    }

    while (o--) {
        int a, b;
        cin >> a >> b;
        memset(ans, 0x3f, sizeof ans);
        for (int i = 0; i < 5; i++) ans[i][i] = 0;
        for (int curr = a / k, dest = b / k, i = 16; ~i; i--) {
            if (curr + (1 << i) <= dest) {
                memset(tmp, 0x3f, sizeof tmp);
                combine(tmp, ans, dp[curr][i]);
                memcpy(ans, tmp, sizeof ans);
                curr += (1 << i);
            }
        }
        cout << (ans[a % k][b % k] == 1061109567 ? -1 : ans[a % k][b % k]) << '\n';
    }
    return 0;
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:30:60: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
             combine(dp[i][j], dp[i][j - 1], dp[i + (1 << j - 1)][j - 1]);
                                                          ~~^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 108 ms 84472 KB Output is correct
2 Correct 53 ms 83448 KB Output is correct
3 Correct 51 ms 83448 KB Output is correct
4 Correct 51 ms 83456 KB Output is correct
5 Correct 49 ms 83576 KB Output is correct
6 Correct 49 ms 83576 KB Output is correct
7 Correct 47 ms 83576 KB Output is correct
8 Correct 107 ms 84472 KB Output is correct
9 Correct 116 ms 84452 KB Output is correct
10 Correct 86 ms 83708 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 122 ms 85116 KB Output is correct
2 Correct 48 ms 83448 KB Output is correct
3 Correct 48 ms 83448 KB Output is correct
4 Correct 50 ms 83448 KB Output is correct
5 Correct 49 ms 83448 KB Output is correct
6 Correct 49 ms 83448 KB Output is correct
7 Correct 53 ms 83608 KB Output is correct
8 Correct 53 ms 83704 KB Output is correct
9 Correct 104 ms 84568 KB Output is correct
10 Correct 136 ms 85880 KB Output is correct
11 Correct 131 ms 85240 KB Output is correct
12 Correct 118 ms 84856 KB Output is correct
13 Correct 121 ms 85880 KB Output is correct
14 Correct 95 ms 84984 KB Output is correct
15 Correct 111 ms 84728 KB Output is correct
16 Correct 94 ms 84728 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 83448 KB Output is correct
2 Correct 49 ms 83448 KB Output is correct
3 Correct 50 ms 83576 KB Output is correct
4 Correct 50 ms 83456 KB Output is correct
5 Correct 50 ms 83524 KB Output is correct
6 Correct 50 ms 83448 KB Output is correct
7 Correct 50 ms 83576 KB Output is correct
8 Correct 50 ms 83580 KB Output is correct
9 Correct 62 ms 83576 KB Output is correct
10 Correct 96 ms 84344 KB Output is correct
11 Correct 123 ms 84984 KB Output is correct
12 Correct 133 ms 85624 KB Output is correct
13 Correct 155 ms 85880 KB Output is correct
14 Correct 128 ms 85368 KB Output is correct
15 Correct 99 ms 84656 KB Output is correct
16 Correct 90 ms 84732 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 83448 KB Output is correct
2 Correct 49 ms 83448 KB Output is correct
3 Correct 50 ms 83576 KB Output is correct
4 Correct 50 ms 83456 KB Output is correct
5 Correct 50 ms 83524 KB Output is correct
6 Correct 50 ms 83448 KB Output is correct
7 Correct 50 ms 83576 KB Output is correct
8 Correct 50 ms 83580 KB Output is correct
9 Correct 62 ms 83576 KB Output is correct
10 Correct 96 ms 84344 KB Output is correct
11 Correct 123 ms 84984 KB Output is correct
12 Correct 133 ms 85624 KB Output is correct
13 Correct 155 ms 85880 KB Output is correct
14 Correct 128 ms 85368 KB Output is correct
15 Correct 99 ms 84656 KB Output is correct
16 Correct 90 ms 84732 KB Output is correct
17 Correct 128 ms 85112 KB Output is correct
18 Correct 49 ms 83448 KB Output is correct
19 Correct 52 ms 83584 KB Output is correct
20 Correct 47 ms 83552 KB Output is correct
21 Correct 47 ms 83456 KB Output is correct
22 Correct 54 ms 83448 KB Output is correct
23 Correct 55 ms 83576 KB Output is correct
24 Correct 47 ms 83584 KB Output is correct
25 Correct 47 ms 83584 KB Output is correct
26 Correct 45 ms 83576 KB Output is correct
27 Correct 90 ms 84320 KB Output is correct
28 Correct 136 ms 85752 KB Output is correct
29 Correct 144 ms 86008 KB Output is correct
30 Correct 137 ms 85368 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 108 ms 84472 KB Output is correct
2 Correct 53 ms 83448 KB Output is correct
3 Correct 51 ms 83448 KB Output is correct
4 Correct 51 ms 83456 KB Output is correct
5 Correct 49 ms 83576 KB Output is correct
6 Correct 49 ms 83576 KB Output is correct
7 Correct 47 ms 83576 KB Output is correct
8 Correct 107 ms 84472 KB Output is correct
9 Correct 116 ms 84452 KB Output is correct
10 Correct 86 ms 83708 KB Output is correct
11 Correct 122 ms 85116 KB Output is correct
12 Correct 48 ms 83448 KB Output is correct
13 Correct 48 ms 83448 KB Output is correct
14 Correct 50 ms 83448 KB Output is correct
15 Correct 49 ms 83448 KB Output is correct
16 Correct 49 ms 83448 KB Output is correct
17 Correct 53 ms 83608 KB Output is correct
18 Correct 53 ms 83704 KB Output is correct
19 Correct 104 ms 84568 KB Output is correct
20 Correct 136 ms 85880 KB Output is correct
21 Correct 131 ms 85240 KB Output is correct
22 Correct 118 ms 84856 KB Output is correct
23 Correct 121 ms 85880 KB Output is correct
24 Correct 95 ms 84984 KB Output is correct
25 Correct 111 ms 84728 KB Output is correct
26 Correct 94 ms 84728 KB Output is correct
27 Correct 52 ms 83448 KB Output is correct
28 Correct 49 ms 83448 KB Output is correct
29 Correct 50 ms 83576 KB Output is correct
30 Correct 50 ms 83456 KB Output is correct
31 Correct 50 ms 83524 KB Output is correct
32 Correct 50 ms 83448 KB Output is correct
33 Correct 50 ms 83576 KB Output is correct
34 Correct 50 ms 83580 KB Output is correct
35 Correct 62 ms 83576 KB Output is correct
36 Correct 96 ms 84344 KB Output is correct
37 Correct 123 ms 84984 KB Output is correct
38 Correct 133 ms 85624 KB Output is correct
39 Correct 155 ms 85880 KB Output is correct
40 Correct 128 ms 85368 KB Output is correct
41 Correct 99 ms 84656 KB Output is correct
42 Correct 90 ms 84732 KB Output is correct
43 Correct 128 ms 85112 KB Output is correct
44 Correct 49 ms 83448 KB Output is correct
45 Correct 52 ms 83584 KB Output is correct
46 Correct 47 ms 83552 KB Output is correct
47 Correct 47 ms 83456 KB Output is correct
48 Correct 54 ms 83448 KB Output is correct
49 Correct 55 ms 83576 KB Output is correct
50 Correct 47 ms 83584 KB Output is correct
51 Correct 47 ms 83584 KB Output is correct
52 Correct 45 ms 83576 KB Output is correct
53 Correct 90 ms 84320 KB Output is correct
54 Correct 136 ms 85752 KB Output is correct
55 Correct 144 ms 86008 KB Output is correct
56 Correct 137 ms 85368 KB Output is correct
57 Correct 180 ms 86904 KB Output is correct
58 Correct 106 ms 84472 KB Output is correct
59 Correct 153 ms 85300 KB Output is correct