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Submission #1096172

# Submission time Handle Problem Language Result Execution time Memory
1096172 2024-10-04T03:48:54 Z sssamui Toll (BOI17_toll) C++17
100 / 100
 196 ms 79036 KB 
#include <iostream>
#include <cstdio>
#include <vector>
#include <cmath>
using namespace std;

const int INF = 1e9;

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	int k, n, m, _;
	cin >> k >> n >> m >> _;
	n--;
	n /= k;
	vector<vector<vector<vector<int>>>> blft(1, vector<vector<vector<int>>>(n + 1, vector<vector<int>>(k, vector<int>(k, INF))));
	while (m--)
	{
		int a, b, d;
		cin >> a >> b >> d;
		blft[0][a / k][a % k][b % k] = d;
	}

	int K = 16;
	int pw = 1;
	while (K--)
	{
		vector<vector<vector<int>>> bck(n + 1, vector<vector<int>>(k, vector<int>(k, INF)));
		for (int i = 2 * pw; i <= n; i++) for (int s = 0; s < k; s++) for (int f = 0; f < k; f++) for (int M = 0; M < k; M++) bck[i - 2 * pw][s][f] =
			fmin(bck[i - 2 * pw][s][f], blft.back()[i - 2 * pw][s][M] + blft.back()[i - pw][M][f]);
		blft.push_back(bck), pw *= 2;
	}

	while (_--)
	{
		int a, b;
		cin >> a >> b;

		vector<int> ans(k, INF);
		int d = (b / k) - (a / k);
		int cstt = a / k;
		ans[a % k] = 0;
		for (int i = 0; i < blft.size(); i++) if (d & (1 << i))
		{
			vector<int> nans(k, INF);
			for (int fnl = 0; fnl < k; fnl++) for (int stt = 0; stt < k; stt++) nans[fnl] = fmin(nans[fnl], ans[stt] + blft[i][cstt][stt][fnl]);
			ans = nans, cstt += (1 << i);
		}

		if (ans[b % k] == INF) cout << "-1\n";
		else cout << ans[b % k] << "\n";
	}
}

Compilation message

toll.cpp: In function 'int main()':
toll.cpp:45:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::vector<std::vector<int> > > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |   for (int i = 0; i < blft.size(); i++) if (d & (1 << i))
      |                   ~~^~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 186 ms 78784 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 4 ms 1884 KB Output is correct
6 Correct 3 ms 1880 KB Output is correct
7 Correct 4 ms 1884 KB Output is correct
8 Correct 182 ms 78876 KB Output is correct
9 Correct 184 ms 79036 KB Output is correct
10 Correct 174 ms 78016 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 142 ms 68868 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 456 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 6 ms 1884 KB Output is correct
8 Correct 6 ms 1884 KB Output is correct
9 Correct 176 ms 78656 KB Output is correct
10 Correct 149 ms 61388 KB Output is correct
11 Correct 148 ms 69124 KB Output is correct
12 Correct 136 ms 60248 KB Output is correct
13 Correct 115 ms 35776 KB Output is correct
14 Correct 84 ms 36964 KB Output is correct
15 Correct 103 ms 34756 KB Output is correct
16 Correct 98 ms 34500 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 3 ms 1884 KB Output is correct
7 Correct 3 ms 1628 KB Output is correct
8 Correct 3 ms 1372 KB Output is correct
9 Correct 3 ms 1784 KB Output is correct
10 Correct 158 ms 78588 KB Output is correct
11 Correct 125 ms 68868 KB Output is correct
12 Correct 131 ms 61308 KB Output is correct
13 Correct 131 ms 61384 KB Output is correct
14 Correct 131 ms 60756 KB Output is correct
15 Correct 86 ms 34496 KB Output is correct
16 Correct 93 ms 34500 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 3 ms 1884 KB Output is correct
7 Correct 3 ms 1628 KB Output is correct
8 Correct 3 ms 1372 KB Output is correct
9 Correct 3 ms 1784 KB Output is correct
10 Correct 158 ms 78588 KB Output is correct
11 Correct 125 ms 68868 KB Output is correct
12 Correct 131 ms 61308 KB Output is correct
13 Correct 131 ms 61384 KB Output is correct
14 Correct 131 ms 60756 KB Output is correct
15 Correct 86 ms 34496 KB Output is correct
16 Correct 93 ms 34500 KB Output is correct
17 Correct 130 ms 68864 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 4 ms 1988 KB Output is correct
24 Correct 6 ms 1680 KB Output is correct
25 Correct 4 ms 1628 KB Output is correct
26 Correct 4 ms 1628 KB Output is correct
27 Correct 161 ms 78688 KB Output is correct
28 Correct 143 ms 61384 KB Output is correct
29 Correct 148 ms 61480 KB Output is correct
30 Correct 134 ms 60980 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 186 ms 78784 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 4 ms 1884 KB Output is correct
6 Correct 3 ms 1880 KB Output is correct
7 Correct 4 ms 1884 KB Output is correct
8 Correct 182 ms 78876 KB Output is correct
9 Correct 184 ms 79036 KB Output is correct
10 Correct 174 ms 78016 KB Output is correct
11 Correct 142 ms 68868 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 456 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 6 ms 1884 KB Output is correct
18 Correct 6 ms 1884 KB Output is correct
19 Correct 176 ms 78656 KB Output is correct
20 Correct 149 ms 61388 KB Output is correct
21 Correct 148 ms 69124 KB Output is correct
22 Correct 136 ms 60248 KB Output is correct
23 Correct 115 ms 35776 KB Output is correct
24 Correct 84 ms 36964 KB Output is correct
25 Correct 103 ms 34756 KB Output is correct
26 Correct 98 ms 34500 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 3 ms 1884 KB Output is correct
33 Correct 3 ms 1628 KB Output is correct
34 Correct 3 ms 1372 KB Output is correct
35 Correct 3 ms 1784 KB Output is correct
36 Correct 158 ms 78588 KB Output is correct
37 Correct 125 ms 68868 KB Output is correct
38 Correct 131 ms 61308 KB Output is correct
39 Correct 131 ms 61384 KB Output is correct
40 Correct 131 ms 60756 KB Output is correct
41 Correct 86 ms 34496 KB Output is correct
42 Correct 93 ms 34500 KB Output is correct
43 Correct 130 ms 68864 KB Output is correct
44 Correct 0 ms 344 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 4 ms 1988 KB Output is correct
50 Correct 6 ms 1680 KB Output is correct
51 Correct 4 ms 1628 KB Output is correct
52 Correct 4 ms 1628 KB Output is correct
53 Correct 161 ms 78688 KB Output is correct
54 Correct 143 ms 61384 KB Output is correct
55 Correct 148 ms 61480 KB Output is correct
56 Correct 134 ms 60980 KB Output is correct
57 Correct 179 ms 61780 KB Output is correct
58 Correct 196 ms 79036 KB Output is correct
59 Correct 155 ms 68996 KB Output is correct