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Submission #158123

# Submission time Handle Problem Language Result Execution time Memory
158123 2019-10-15T03:19:26 Z PeppaPig Toll (BOI17_toll) C++14
100 / 100
 254 ms 81980 KB 
#include <bits/stdc++.h>

using namespace std;

int k, n, m, q;
int bl[50005][5][5][16];

int main() {
    fill_n(bl[0][0][0], 50005 * 5 * 5 * 16, 1e9);
    scanf("%d %d %d %d", &k, &n, &m, &q);
    for(int i = 1, a, b, c; i <= m; i++) {
        scanf("%d %d %d", &a, &b, &c);
        bl[a / k][a % k][b % k][0] = c;
    }
    for(int i = 1; i <= 15; i++) for(int a = 0; a <= n / k + 1; a++) 
        for(int b = 0; b < k; b++) for(int c = 0; c < k; c++) for(int t = 0; t < k; t++)
            if(a + (1 << (i - 1)) <= n / k + 1)
                bl[a][b][c][i] = min(bl[a][b][c][i], bl[a][b][t][i-1] + bl[a + (1 << (i - 1))][t][c][i-1]);
    while(q--) {
        int a, b;
        scanf("%d %d", &a, &b);
        if(a / k >= b / k) {
            printf("-1\n");
            continue;
        }
        int ans = b % k, dp[5];
        for(int i = 0; i < k; i++) dp[i] = bl[a / k][a % k][i][0];
        a = (a / k) + 1, b = b / k;
        for(int i = 15; ~i; i--) if(a + (1 << i) <= b) {
            int ndp[5];
            fill_n(ndp, 5, 1e9);
            for(int x = 0; x < k; x++) for(int y = 0; y < k; y++)
                ndp[x] = min(ndp[x], dp[y] + bl[a][y][x][i]);
            for(int j = 0; j < k; j++) dp[j] = ndp[j];
            a += (1 << i);
        }
        if(dp[ans] == 1e9) printf("-1\n");
        else printf("%d\n", dp[ans]);
    }

    return 0;
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d %d", &k, &n, &m, &q);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d", &a, &b, &c);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:21:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &a, &b);
         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 115 ms 78712 KB Output is correct
2 Correct 70 ms 78584 KB Output is correct
3 Correct 70 ms 78636 KB Output is correct
4 Correct 69 ms 78588 KB Output is correct
5 Correct 71 ms 78580 KB Output is correct
6 Correct 71 ms 78684 KB Output is correct
7 Correct 71 ms 78584 KB Output is correct
8 Correct 117 ms 79560 KB Output is correct
9 Correct 118 ms 79640 KB Output is correct
10 Correct 90 ms 78712 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 78748 KB Output is correct
2 Correct 69 ms 78584 KB Output is correct
3 Correct 70 ms 78648 KB Output is correct
4 Correct 70 ms 78692 KB Output is correct
5 Correct 70 ms 78556 KB Output is correct
6 Correct 70 ms 78556 KB Output is correct
7 Correct 75 ms 78712 KB Output is correct
8 Correct 76 ms 78792 KB Output is correct
9 Correct 115 ms 79608 KB Output is correct
10 Correct 186 ms 80956 KB Output is correct
11 Correct 146 ms 80476 KB Output is correct
12 Correct 146 ms 79992 KB Output is correct
13 Correct 177 ms 81168 KB Output is correct
14 Correct 133 ms 80120 KB Output is correct
15 Correct 132 ms 79864 KB Output is correct
16 Correct 133 ms 79864 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 78712 KB Output is correct
2 Correct 70 ms 78584 KB Output is correct
3 Correct 70 ms 78648 KB Output is correct
4 Correct 69 ms 78584 KB Output is correct
5 Correct 70 ms 78588 KB Output is correct
6 Correct 79 ms 78540 KB Output is correct
7 Correct 80 ms 78584 KB Output is correct
8 Correct 72 ms 78556 KB Output is correct
9 Correct 72 ms 78584 KB Output is correct
10 Correct 110 ms 78584 KB Output is correct
11 Correct 138 ms 80120 KB Output is correct
12 Correct 178 ms 80816 KB Output is correct
13 Correct 180 ms 81056 KB Output is correct
14 Correct 195 ms 80416 KB Output is correct
15 Correct 146 ms 79708 KB Output is correct
16 Correct 139 ms 79864 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 78712 KB Output is correct
2 Correct 70 ms 78584 KB Output is correct
3 Correct 70 ms 78648 KB Output is correct
4 Correct 69 ms 78584 KB Output is correct
5 Correct 70 ms 78588 KB Output is correct
6 Correct 79 ms 78540 KB Output is correct
7 Correct 80 ms 78584 KB Output is correct
8 Correct 72 ms 78556 KB Output is correct
9 Correct 72 ms 78584 KB Output is correct
10 Correct 110 ms 78584 KB Output is correct
11 Correct 138 ms 80120 KB Output is correct
12 Correct 178 ms 80816 KB Output is correct
13 Correct 180 ms 81056 KB Output is correct
14 Correct 195 ms 80416 KB Output is correct
15 Correct 146 ms 79708 KB Output is correct
16 Correct 139 ms 79864 KB Output is correct
17 Correct 165 ms 80284 KB Output is correct
18 Correct 72 ms 78640 KB Output is correct
19 Correct 79 ms 78584 KB Output is correct
20 Correct 81 ms 78596 KB Output is correct
21 Correct 81 ms 78760 KB Output is correct
22 Correct 70 ms 78584 KB Output is correct
23 Correct 72 ms 78712 KB Output is correct
24 Correct 73 ms 78712 KB Output is correct
25 Correct 74 ms 78712 KB Output is correct
26 Correct 73 ms 78712 KB Output is correct
27 Correct 118 ms 79480 KB Output is correct
28 Correct 178 ms 80760 KB Output is correct
29 Correct 187 ms 81116 KB Output is correct
30 Correct 193 ms 80504 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 115 ms 78712 KB Output is correct
2 Correct 70 ms 78584 KB Output is correct
3 Correct 70 ms 78636 KB Output is correct
4 Correct 69 ms 78588 KB Output is correct
5 Correct 71 ms 78580 KB Output is correct
6 Correct 71 ms 78684 KB Output is correct
7 Correct 71 ms 78584 KB Output is correct
8 Correct 117 ms 79560 KB Output is correct
9 Correct 118 ms 79640 KB Output is correct
10 Correct 90 ms 78712 KB Output is correct
11 Correct 149 ms 78748 KB Output is correct
12 Correct 69 ms 78584 KB Output is correct
13 Correct 70 ms 78648 KB Output is correct
14 Correct 70 ms 78692 KB Output is correct
15 Correct 70 ms 78556 KB Output is correct
16 Correct 70 ms 78556 KB Output is correct
17 Correct 75 ms 78712 KB Output is correct
18 Correct 76 ms 78792 KB Output is correct
19 Correct 115 ms 79608 KB Output is correct
20 Correct 186 ms 80956 KB Output is correct
21 Correct 146 ms 80476 KB Output is correct
22 Correct 146 ms 79992 KB Output is correct
23 Correct 177 ms 81168 KB Output is correct
24 Correct 133 ms 80120 KB Output is correct
25 Correct 132 ms 79864 KB Output is correct
26 Correct 133 ms 79864 KB Output is correct
27 Correct 69 ms 78712 KB Output is correct
28 Correct 70 ms 78584 KB Output is correct
29 Correct 70 ms 78648 KB Output is correct
30 Correct 69 ms 78584 KB Output is correct
31 Correct 70 ms 78588 KB Output is correct
32 Correct 79 ms 78540 KB Output is correct
33 Correct 80 ms 78584 KB Output is correct
34 Correct 72 ms 78556 KB Output is correct
35 Correct 72 ms 78584 KB Output is correct
36 Correct 110 ms 78584 KB Output is correct
37 Correct 138 ms 80120 KB Output is correct
38 Correct 178 ms 80816 KB Output is correct
39 Correct 180 ms 81056 KB Output is correct
40 Correct 195 ms 80416 KB Output is correct
41 Correct 146 ms 79708 KB Output is correct
42 Correct 139 ms 79864 KB Output is correct
43 Correct 165 ms 80284 KB Output is correct
44 Correct 72 ms 78640 KB Output is correct
45 Correct 79 ms 78584 KB Output is correct
46 Correct 81 ms 78596 KB Output is correct
47 Correct 81 ms 78760 KB Output is correct
48 Correct 70 ms 78584 KB Output is correct
49 Correct 72 ms 78712 KB Output is correct
50 Correct 73 ms 78712 KB Output is correct
51 Correct 74 ms 78712 KB Output is correct
52 Correct 73 ms 78712 KB Output is correct
53 Correct 118 ms 79480 KB Output is correct
54 Correct 178 ms 80760 KB Output is correct
55 Correct 187 ms 81116 KB Output is correct
56 Correct 193 ms 80504 KB Output is correct
57 Correct 254 ms 81980 KB Output is correct
58 Correct 117 ms 79592 KB Output is correct
59 Correct 154 ms 80484 KB Output is correct