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Submission #883467

# Submission time Handle Problem Language Result Execution time Memory
883467 2023-12-05T10:18:23 Z arashMLG Toll (BOI17_toll) C++17
100 / 100
 67 ms 86964 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 43 ms 84560 KB Output is correct
2 Correct 10 ms 83548 KB Output is correct
3 Correct 10 ms 83548 KB Output is correct
4 Correct 10 ms 83456 KB Output is correct
5 Correct 11 ms 83640 KB Output is correct
6 Correct 11 ms 83548 KB Output is correct
7 Correct 10 ms 83544 KB Output is correct
8 Correct 38 ms 84532 KB Output is correct
9 Correct 37 ms 84500 KB Output is correct
10 Correct 24 ms 83720 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 85460 KB Output is correct
2 Correct 11 ms 83544 KB Output is correct
3 Correct 12 ms 83548 KB Output is correct
4 Correct 10 ms 83548 KB Output is correct
5 Correct 10 ms 83408 KB Output is correct
6 Correct 10 ms 83548 KB Output is correct
7 Correct 13 ms 83732 KB Output is correct
8 Correct 13 ms 83548 KB Output is correct
9 Correct 36 ms 84316 KB Output is correct
10 Correct 58 ms 85692 KB Output is correct
11 Correct 55 ms 85320 KB Output is correct
12 Correct 44 ms 84820 KB Output is correct
13 Correct 49 ms 86016 KB Output is correct
14 Correct 36 ms 85080 KB Output is correct
15 Correct 36 ms 84816 KB Output is correct
16 Correct 39 ms 84636 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 83804 KB Output is correct
2 Correct 10 ms 83548 KB Output is correct
3 Correct 10 ms 83548 KB Output is correct
4 Correct 10 ms 83548 KB Output is correct
5 Correct 10 ms 83376 KB Output is correct
6 Correct 11 ms 83544 KB Output is correct
7 Correct 11 ms 83548 KB Output is correct
8 Correct 11 ms 83672 KB Output is correct
9 Correct 11 ms 83544 KB Output is correct
10 Correct 31 ms 84304 KB Output is correct
11 Correct 55 ms 85396 KB Output is correct
12 Correct 51 ms 85776 KB Output is correct
13 Correct 52 ms 86156 KB Output is correct
14 Correct 44 ms 85328 KB Output is correct
15 Correct 41 ms 84752 KB Output is correct
16 Correct 32 ms 84564 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 83804 KB Output is correct
2 Correct 10 ms 83548 KB Output is correct
3 Correct 10 ms 83548 KB Output is correct
4 Correct 10 ms 83548 KB Output is correct
5 Correct 10 ms 83376 KB Output is correct
6 Correct 11 ms 83544 KB Output is correct
7 Correct 11 ms 83548 KB Output is correct
8 Correct 11 ms 83672 KB Output is correct
9 Correct 11 ms 83544 KB Output is correct
10 Correct 31 ms 84304 KB Output is correct
11 Correct 55 ms 85396 KB Output is correct
12 Correct 51 ms 85776 KB Output is correct
13 Correct 52 ms 86156 KB Output is correct
14 Correct 44 ms 85328 KB Output is correct
15 Correct 41 ms 84752 KB Output is correct
16 Correct 32 ms 84564 KB Output is correct
17 Correct 62 ms 85252 KB Output is correct
18 Correct 11 ms 83548 KB Output is correct
19 Correct 10 ms 83392 KB Output is correct
20 Correct 10 ms 83544 KB Output is correct
21 Correct 10 ms 83548 KB Output is correct
22 Correct 10 ms 83548 KB Output is correct
23 Correct 11 ms 83656 KB Output is correct
24 Correct 12 ms 83456 KB Output is correct
25 Correct 13 ms 83548 KB Output is correct
26 Correct 12 ms 83648 KB Output is correct
27 Correct 35 ms 84464 KB Output is correct
28 Correct 52 ms 85804 KB Output is correct
29 Correct 54 ms 85844 KB Output is correct
30 Correct 59 ms 85384 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 84560 KB Output is correct
2 Correct 10 ms 83548 KB Output is correct
3 Correct 10 ms 83548 KB Output is correct
4 Correct 10 ms 83456 KB Output is correct
5 Correct 11 ms 83640 KB Output is correct
6 Correct 11 ms 83548 KB Output is correct
7 Correct 10 ms 83544 KB Output is correct
8 Correct 38 ms 84532 KB Output is correct
9 Correct 37 ms 84500 KB Output is correct
10 Correct 24 ms 83720 KB Output is correct
11 Correct 55 ms 85460 KB Output is correct
12 Correct 11 ms 83544 KB Output is correct
13 Correct 12 ms 83548 KB Output is correct
14 Correct 10 ms 83548 KB Output is correct
15 Correct 10 ms 83408 KB Output is correct
16 Correct 10 ms 83548 KB Output is correct
17 Correct 13 ms 83732 KB Output is correct
18 Correct 13 ms 83548 KB Output is correct
19 Correct 36 ms 84316 KB Output is correct
20 Correct 58 ms 85692 KB Output is correct
21 Correct 55 ms 85320 KB Output is correct
22 Correct 44 ms 84820 KB Output is correct
23 Correct 49 ms 86016 KB Output is correct
24 Correct 36 ms 85080 KB Output is correct
25 Correct 36 ms 84816 KB Output is correct
26 Correct 39 ms 84636 KB Output is correct
27 Correct 11 ms 83804 KB Output is correct
28 Correct 10 ms 83548 KB Output is correct
29 Correct 10 ms 83548 KB Output is correct
30 Correct 10 ms 83548 KB Output is correct
31 Correct 10 ms 83376 KB Output is correct
32 Correct 11 ms 83544 KB Output is correct
33 Correct 11 ms 83548 KB Output is correct
34 Correct 11 ms 83672 KB Output is correct
35 Correct 11 ms 83544 KB Output is correct
36 Correct 31 ms 84304 KB Output is correct
37 Correct 55 ms 85396 KB Output is correct
38 Correct 51 ms 85776 KB Output is correct
39 Correct 52 ms 86156 KB Output is correct
40 Correct 44 ms 85328 KB Output is correct
41 Correct 41 ms 84752 KB Output is correct
42 Correct 32 ms 84564 KB Output is correct
43 Correct 62 ms 85252 KB Output is correct
44 Correct 11 ms 83548 KB Output is correct
45 Correct 10 ms 83392 KB Output is correct
46 Correct 10 ms 83544 KB Output is correct
47 Correct 10 ms 83548 KB Output is correct
48 Correct 10 ms 83548 KB Output is correct
49 Correct 11 ms 83656 KB Output is correct
50 Correct 12 ms 83456 KB Output is correct
51 Correct 13 ms 83548 KB Output is correct
52 Correct 12 ms 83648 KB Output is correct
53 Correct 35 ms 84464 KB Output is correct
54 Correct 52 ms 85804 KB Output is correct
55 Correct 54 ms 85844 KB Output is correct
56 Correct 59 ms 85384 KB Output is correct
57 Correct 67 ms 86964 KB Output is correct
58 Correct 38 ms 84352 KB Output is correct
59 Correct 53 ms 85328 KB Output is correct