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Submission #950036

# Submission time Handle Problem Language Result Execution time Memory
950036 2024-03-20T03:50:16 Z Trisanu_Das Toll (BOI17_toll) C++17
100 / 100
 72 ms 86864 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:21:131: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   21 |  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]);
      |                                                                                                                                 ~~^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 84480 KB Output is correct
2 Correct 14 ms 83544 KB Output is correct
3 Correct 11 ms 83544 KB Output is correct
4 Correct 11 ms 83544 KB Output is correct
5 Correct 12 ms 83544 KB Output is correct
6 Correct 12 ms 83548 KB Output is correct
7 Correct 12 ms 83548 KB Output is correct
8 Correct 45 ms 84308 KB Output is correct
9 Correct 43 ms 84312 KB Output is correct
10 Correct 29 ms 83548 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 85076 KB Output is correct
2 Correct 11 ms 83548 KB Output is correct
3 Correct 11 ms 83456 KB Output is correct
4 Correct 11 ms 83548 KB Output is correct
5 Correct 11 ms 83548 KB Output is correct
6 Correct 11 ms 83408 KB Output is correct
7 Correct 14 ms 83548 KB Output is correct
8 Correct 14 ms 83548 KB Output is correct
9 Correct 41 ms 84308 KB Output is correct
10 Correct 58 ms 85844 KB Output is correct
11 Correct 55 ms 85252 KB Output is correct
12 Correct 50 ms 84828 KB Output is correct
13 Correct 51 ms 85840 KB Output is correct
14 Correct 39 ms 85072 KB Output is correct
15 Correct 37 ms 84828 KB Output is correct
16 Correct 39 ms 84684 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 83548 KB Output is correct
2 Correct 11 ms 83548 KB Output is correct
3 Correct 13 ms 83488 KB Output is correct
4 Correct 12 ms 83548 KB Output is correct
5 Correct 11 ms 83544 KB Output is correct
6 Correct 12 ms 83548 KB Output is correct
7 Correct 12 ms 83636 KB Output is correct
8 Correct 12 ms 83500 KB Output is correct
9 Correct 12 ms 83472 KB Output is correct
10 Correct 36 ms 84316 KB Output is correct
11 Correct 48 ms 85072 KB Output is correct
12 Correct 53 ms 85772 KB Output is correct
13 Correct 57 ms 86032 KB Output is correct
14 Correct 49 ms 85328 KB Output is correct
15 Correct 34 ms 84560 KB Output is correct
16 Correct 35 ms 84560 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 83548 KB Output is correct
2 Correct 11 ms 83548 KB Output is correct
3 Correct 13 ms 83488 KB Output is correct
4 Correct 12 ms 83548 KB Output is correct
5 Correct 11 ms 83544 KB Output is correct
6 Correct 12 ms 83548 KB Output is correct
7 Correct 12 ms 83636 KB Output is correct
8 Correct 12 ms 83500 KB Output is correct
9 Correct 12 ms 83472 KB Output is correct
10 Correct 36 ms 84316 KB Output is correct
11 Correct 48 ms 85072 KB Output is correct
12 Correct 53 ms 85772 KB Output is correct
13 Correct 57 ms 86032 KB Output is correct
14 Correct 49 ms 85328 KB Output is correct
15 Correct 34 ms 84560 KB Output is correct
16 Correct 35 ms 84560 KB Output is correct
17 Correct 51 ms 85128 KB Output is correct
18 Correct 11 ms 83600 KB Output is correct
19 Correct 11 ms 83548 KB Output is correct
20 Correct 12 ms 83544 KB Output is correct
21 Correct 11 ms 83548 KB Output is correct
22 Correct 11 ms 83544 KB Output is correct
23 Correct 12 ms 83544 KB Output is correct
24 Correct 13 ms 83544 KB Output is correct
25 Correct 13 ms 83548 KB Output is correct
26 Correct 13 ms 83548 KB Output is correct
27 Correct 39 ms 84256 KB Output is correct
28 Correct 58 ms 85636 KB Output is correct
29 Correct 58 ms 86048 KB Output is correct
30 Correct 53 ms 85332 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 84480 KB Output is correct
2 Correct 14 ms 83544 KB Output is correct
3 Correct 11 ms 83544 KB Output is correct
4 Correct 11 ms 83544 KB Output is correct
5 Correct 12 ms 83544 KB Output is correct
6 Correct 12 ms 83548 KB Output is correct
7 Correct 12 ms 83548 KB Output is correct
8 Correct 45 ms 84308 KB Output is correct
9 Correct 43 ms 84312 KB Output is correct
10 Correct 29 ms 83548 KB Output is correct
11 Correct 52 ms 85076 KB Output is correct
12 Correct 11 ms 83548 KB Output is correct
13 Correct 11 ms 83456 KB Output is correct
14 Correct 11 ms 83548 KB Output is correct
15 Correct 11 ms 83548 KB Output is correct
16 Correct 11 ms 83408 KB Output is correct
17 Correct 14 ms 83548 KB Output is correct
18 Correct 14 ms 83548 KB Output is correct
19 Correct 41 ms 84308 KB Output is correct
20 Correct 58 ms 85844 KB Output is correct
21 Correct 55 ms 85252 KB Output is correct
22 Correct 50 ms 84828 KB Output is correct
23 Correct 51 ms 85840 KB Output is correct
24 Correct 39 ms 85072 KB Output is correct
25 Correct 37 ms 84828 KB Output is correct
26 Correct 39 ms 84684 KB Output is correct
27 Correct 12 ms 83548 KB Output is correct
28 Correct 11 ms 83548 KB Output is correct
29 Correct 13 ms 83488 KB Output is correct
30 Correct 12 ms 83548 KB Output is correct
31 Correct 11 ms 83544 KB Output is correct
32 Correct 12 ms 83548 KB Output is correct
33 Correct 12 ms 83636 KB Output is correct
34 Correct 12 ms 83500 KB Output is correct
35 Correct 12 ms 83472 KB Output is correct
36 Correct 36 ms 84316 KB Output is correct
37 Correct 48 ms 85072 KB Output is correct
38 Correct 53 ms 85772 KB Output is correct
39 Correct 57 ms 86032 KB Output is correct
40 Correct 49 ms 85328 KB Output is correct
41 Correct 34 ms 84560 KB Output is correct
42 Correct 35 ms 84560 KB Output is correct
43 Correct 51 ms 85128 KB Output is correct
44 Correct 11 ms 83600 KB Output is correct
45 Correct 11 ms 83548 KB Output is correct
46 Correct 12 ms 83544 KB Output is correct
47 Correct 11 ms 83548 KB Output is correct
48 Correct 11 ms 83544 KB Output is correct
49 Correct 12 ms 83544 KB Output is correct
50 Correct 13 ms 83544 KB Output is correct
51 Correct 13 ms 83548 KB Output is correct
52 Correct 13 ms 83548 KB Output is correct
53 Correct 39 ms 84256 KB Output is correct
54 Correct 58 ms 85636 KB Output is correct
55 Correct 58 ms 86048 KB Output is correct
56 Correct 53 ms 85332 KB Output is correct
57 Correct 72 ms 86864 KB Output is correct
58 Correct 48 ms 84316 KB Output is correct
59 Correct 65 ms 85640 KB Output is correct