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Submission #1003867

# Submission time Handle Problem Language Result Execution time Memory
1003867 2024-06-20T19:22:45 Z tien_07 Toll (BOI17_toll) C++17
100 / 100
 57 ms 86808 KB 
#include <bits/stdc++.h>
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] == 0x3f3f3f3f ? -1 : ans[a % k][b % k])
		     << '\n';
	}
	return 0;
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:29:51: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   29 |    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 33 ms 83548 KB Output is correct
2 Correct 10 ms 83548 KB Output is correct
3 Correct 10 ms 83548 KB Output is correct
4 Correct 11 ms 83548 KB Output is correct
5 Correct 12 ms 83548 KB Output is correct
6 Correct 11 ms 83548 KB Output is correct
7 Correct 11 ms 83456 KB Output is correct
8 Correct 39 ms 83632 KB Output is correct
9 Correct 33 ms 83480 KB Output is correct
10 Correct 23 ms 83544 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 83544 KB Output is correct
2 Correct 11 ms 83548 KB Output is correct
3 Correct 11 ms 83548 KB Output is correct
4 Correct 12 ms 83412 KB Output is correct
5 Correct 11 ms 83548 KB Output is correct
6 Correct 10 ms 83620 KB Output is correct
7 Correct 13 ms 83548 KB Output is correct
8 Correct 14 ms 83548 KB Output is correct
9 Correct 32 ms 83620 KB Output is correct
10 Correct 46 ms 83624 KB Output is correct
11 Correct 43 ms 83548 KB Output is correct
12 Correct 37 ms 83544 KB Output is correct
13 Correct 44 ms 83796 KB Output is correct
14 Correct 33 ms 84048 KB Output is correct
15 Correct 32 ms 84828 KB Output is correct
16 Correct 31 ms 84304 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 83548 KB Output is correct
2 Correct 11 ms 83548 KB Output is correct
3 Correct 12 ms 83544 KB Output is correct
4 Correct 11 ms 83420 KB Output is correct
5 Correct 10 ms 83588 KB Output is correct
6 Correct 11 ms 83548 KB Output is correct
7 Correct 11 ms 83420 KB Output is correct
8 Correct 13 ms 83544 KB Output is correct
9 Correct 12 ms 83548 KB Output is correct
10 Correct 29 ms 84220 KB Output is correct
11 Correct 40 ms 85080 KB Output is correct
12 Correct 43 ms 85588 KB Output is correct
13 Correct 45 ms 85840 KB Output is correct
14 Correct 40 ms 85336 KB Output is correct
15 Correct 29 ms 83804 KB Output is correct
16 Correct 30 ms 84788 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 83548 KB Output is correct
2 Correct 11 ms 83548 KB Output is correct
3 Correct 12 ms 83544 KB Output is correct
4 Correct 11 ms 83420 KB Output is correct
5 Correct 10 ms 83588 KB Output is correct
6 Correct 11 ms 83548 KB Output is correct
7 Correct 11 ms 83420 KB Output is correct
8 Correct 13 ms 83544 KB Output is correct
9 Correct 12 ms 83548 KB Output is correct
10 Correct 29 ms 84220 KB Output is correct
11 Correct 40 ms 85080 KB Output is correct
12 Correct 43 ms 85588 KB Output is correct
13 Correct 45 ms 85840 KB Output is correct
14 Correct 40 ms 85336 KB Output is correct
15 Correct 29 ms 83804 KB Output is correct
16 Correct 30 ms 84788 KB Output is correct
17 Correct 43 ms 85076 KB Output is correct
18 Correct 11 ms 83544 KB Output is correct
19 Correct 11 ms 83448 KB Output is correct
20 Correct 11 ms 83548 KB Output is correct
21 Correct 11 ms 83548 KB Output is correct
22 Correct 11 ms 83548 KB Output is correct
23 Correct 12 ms 83472 KB Output is correct
24 Correct 12 ms 83620 KB Output is correct
25 Correct 14 ms 83548 KB Output is correct
26 Correct 12 ms 83644 KB Output is correct
27 Correct 34 ms 84316 KB Output is correct
28 Correct 54 ms 84316 KB Output is correct
29 Correct 48 ms 85844 KB Output is correct
30 Correct 42 ms 85008 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 83548 KB Output is correct
2 Correct 10 ms 83548 KB Output is correct
3 Correct 10 ms 83548 KB Output is correct
4 Correct 11 ms 83548 KB Output is correct
5 Correct 12 ms 83548 KB Output is correct
6 Correct 11 ms 83548 KB Output is correct
7 Correct 11 ms 83456 KB Output is correct
8 Correct 39 ms 83632 KB Output is correct
9 Correct 33 ms 83480 KB Output is correct
10 Correct 23 ms 83544 KB Output is correct
11 Correct 44 ms 83544 KB Output is correct
12 Correct 11 ms 83548 KB Output is correct
13 Correct 11 ms 83548 KB Output is correct
14 Correct 12 ms 83412 KB Output is correct
15 Correct 11 ms 83548 KB Output is correct
16 Correct 10 ms 83620 KB Output is correct
17 Correct 13 ms 83548 KB Output is correct
18 Correct 14 ms 83548 KB Output is correct
19 Correct 32 ms 83620 KB Output is correct
20 Correct 46 ms 83624 KB Output is correct
21 Correct 43 ms 83548 KB Output is correct
22 Correct 37 ms 83544 KB Output is correct
23 Correct 44 ms 83796 KB Output is correct
24 Correct 33 ms 84048 KB Output is correct
25 Correct 32 ms 84828 KB Output is correct
26 Correct 31 ms 84304 KB Output is correct
27 Correct 11 ms 83548 KB Output is correct
28 Correct 11 ms 83548 KB Output is correct
29 Correct 12 ms 83544 KB Output is correct
30 Correct 11 ms 83420 KB Output is correct
31 Correct 10 ms 83588 KB Output is correct
32 Correct 11 ms 83548 KB Output is correct
33 Correct 11 ms 83420 KB Output is correct
34 Correct 13 ms 83544 KB Output is correct
35 Correct 12 ms 83548 KB Output is correct
36 Correct 29 ms 84220 KB Output is correct
37 Correct 40 ms 85080 KB Output is correct
38 Correct 43 ms 85588 KB Output is correct
39 Correct 45 ms 85840 KB Output is correct
40 Correct 40 ms 85336 KB Output is correct
41 Correct 29 ms 83804 KB Output is correct
42 Correct 30 ms 84788 KB Output is correct
43 Correct 43 ms 85076 KB Output is correct
44 Correct 11 ms 83544 KB Output is correct
45 Correct 11 ms 83448 KB Output is correct
46 Correct 11 ms 83548 KB Output is correct
47 Correct 11 ms 83548 KB Output is correct
48 Correct 11 ms 83548 KB Output is correct
49 Correct 12 ms 83472 KB Output is correct
50 Correct 12 ms 83620 KB Output is correct
51 Correct 14 ms 83548 KB Output is correct
52 Correct 12 ms 83644 KB Output is correct
53 Correct 34 ms 84316 KB Output is correct
54 Correct 54 ms 84316 KB Output is correct
55 Correct 48 ms 85844 KB Output is correct
56 Correct 42 ms 85008 KB Output is correct
57 Correct 57 ms 86808 KB Output is correct
58 Correct 35 ms 84312 KB Output is correct
59 Correct 47 ms 85092 KB Output is correct