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Submission #260449

# Submission time Handle Problem Language Result Execution time Memory
260449 2020-08-10T09:29:34 Z dolphingarlic Toll (BOI17_toll) C++14
100 / 100
 165 ms 86008 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:30:51: 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 106 ms 84472 KB Output is correct
2 Correct 45 ms 83456 KB Output is correct
3 Correct 43 ms 83448 KB Output is correct
4 Correct 43 ms 83576 KB Output is correct
5 Correct 46 ms 83576 KB Output is correct
6 Correct 46 ms 83576 KB Output is correct
7 Correct 48 ms 83576 KB Output is correct
8 Correct 102 ms 84472 KB Output is correct
9 Correct 102 ms 84344 KB Output is correct
10 Correct 80 ms 83704 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 124 ms 85316 KB Output is correct
2 Correct 43 ms 83448 KB Output is correct
3 Correct 44 ms 83448 KB Output is correct
4 Correct 46 ms 83576 KB Output is correct
5 Correct 44 ms 83468 KB Output is correct
6 Correct 44 ms 83576 KB Output is correct
7 Correct 53 ms 83592 KB Output is correct
8 Correct 51 ms 83704 KB Output is correct
9 Correct 109 ms 84344 KB Output is correct
10 Correct 143 ms 85880 KB Output is correct
11 Correct 126 ms 85240 KB Output is correct
12 Correct 119 ms 84856 KB Output is correct
13 Correct 118 ms 85880 KB Output is correct
14 Correct 97 ms 84984 KB Output is correct
15 Correct 93 ms 84728 KB Output is correct
16 Correct 98 ms 84728 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 83448 KB Output is correct
2 Correct 47 ms 83448 KB Output is correct
3 Correct 44 ms 83448 KB Output is correct
4 Correct 49 ms 83448 KB Output is correct
5 Correct 45 ms 83448 KB Output is correct
6 Correct 45 ms 83584 KB Output is correct
7 Correct 45 ms 83584 KB Output is correct
8 Correct 47 ms 83580 KB Output is correct
9 Correct 45 ms 83576 KB Output is correct
10 Correct 89 ms 84344 KB Output is correct
11 Correct 130 ms 84984 KB Output is correct
12 Correct 131 ms 85752 KB Output is correct
13 Correct 127 ms 85880 KB Output is correct
14 Correct 121 ms 85240 KB Output is correct
15 Correct 85 ms 84728 KB Output is correct
16 Correct 87 ms 84728 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 83448 KB Output is correct
2 Correct 47 ms 83448 KB Output is correct
3 Correct 44 ms 83448 KB Output is correct
4 Correct 49 ms 83448 KB Output is correct
5 Correct 45 ms 83448 KB Output is correct
6 Correct 45 ms 83584 KB Output is correct
7 Correct 45 ms 83584 KB Output is correct
8 Correct 47 ms 83580 KB Output is correct
9 Correct 45 ms 83576 KB Output is correct
10 Correct 89 ms 84344 KB Output is correct
11 Correct 130 ms 84984 KB Output is correct
12 Correct 131 ms 85752 KB Output is correct
13 Correct 127 ms 85880 KB Output is correct
14 Correct 121 ms 85240 KB Output is correct
15 Correct 85 ms 84728 KB Output is correct
16 Correct 87 ms 84728 KB Output is correct
17 Correct 116 ms 85112 KB Output is correct
18 Correct 51 ms 83448 KB Output is correct
19 Correct 43 ms 83448 KB Output is correct
20 Correct 43 ms 83448 KB Output is correct
21 Correct 44 ms 83448 KB Output is correct
22 Correct 44 ms 83468 KB Output is correct
23 Correct 45 ms 83576 KB Output is correct
24 Correct 46 ms 83704 KB Output is correct
25 Correct 48 ms 83576 KB Output is correct
26 Correct 47 ms 83732 KB Output is correct
27 Correct 91 ms 84344 KB Output is correct
28 Correct 132 ms 85752 KB Output is correct
29 Correct 133 ms 86008 KB Output is correct
30 Correct 125 ms 85368 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 106 ms 84472 KB Output is correct
2 Correct 45 ms 83456 KB Output is correct
3 Correct 43 ms 83448 KB Output is correct
4 Correct 43 ms 83576 KB Output is correct
5 Correct 46 ms 83576 KB Output is correct
6 Correct 46 ms 83576 KB Output is correct
7 Correct 48 ms 83576 KB Output is correct
8 Correct 102 ms 84472 KB Output is correct
9 Correct 102 ms 84344 KB Output is correct
10 Correct 80 ms 83704 KB Output is correct
11 Correct 124 ms 85316 KB Output is correct
12 Correct 43 ms 83448 KB Output is correct
13 Correct 44 ms 83448 KB Output is correct
14 Correct 46 ms 83576 KB Output is correct
15 Correct 44 ms 83468 KB Output is correct
16 Correct 44 ms 83576 KB Output is correct
17 Correct 53 ms 83592 KB Output is correct
18 Correct 51 ms 83704 KB Output is correct
19 Correct 109 ms 84344 KB Output is correct
20 Correct 143 ms 85880 KB Output is correct
21 Correct 126 ms 85240 KB Output is correct
22 Correct 119 ms 84856 KB Output is correct
23 Correct 118 ms 85880 KB Output is correct
24 Correct 97 ms 84984 KB Output is correct
25 Correct 93 ms 84728 KB Output is correct
26 Correct 98 ms 84728 KB Output is correct
27 Correct 49 ms 83448 KB Output is correct
28 Correct 47 ms 83448 KB Output is correct
29 Correct 44 ms 83448 KB Output is correct
30 Correct 49 ms 83448 KB Output is correct
31 Correct 45 ms 83448 KB Output is correct
32 Correct 45 ms 83584 KB Output is correct
33 Correct 45 ms 83584 KB Output is correct
34 Correct 47 ms 83580 KB Output is correct
35 Correct 45 ms 83576 KB Output is correct
36 Correct 89 ms 84344 KB Output is correct
37 Correct 130 ms 84984 KB Output is correct
38 Correct 131 ms 85752 KB Output is correct
39 Correct 127 ms 85880 KB Output is correct
40 Correct 121 ms 85240 KB Output is correct
41 Correct 85 ms 84728 KB Output is correct
42 Correct 87 ms 84728 KB Output is correct
43 Correct 116 ms 85112 KB Output is correct
44 Correct 51 ms 83448 KB Output is correct
45 Correct 43 ms 83448 KB Output is correct
46 Correct 43 ms 83448 KB Output is correct
47 Correct 44 ms 83448 KB Output is correct
48 Correct 44 ms 83468 KB Output is correct
49 Correct 45 ms 83576 KB Output is correct
50 Correct 46 ms 83704 KB Output is correct
51 Correct 48 ms 83576 KB Output is correct
52 Correct 47 ms 83732 KB Output is correct
53 Correct 91 ms 84344 KB Output is correct
54 Correct 132 ms 85752 KB Output is correct
55 Correct 133 ms 86008 KB Output is correct
56 Correct 125 ms 85368 KB Output is correct
57 Correct 165 ms 85968 KB Output is correct
58 Correct 104 ms 84476 KB Output is correct
59 Correct 137 ms 85368 KB Output is correct