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Submission #705134

# Submission time Handle Problem Language Result Execution time Memory
705134 2023-03-03T12:23:04 Z dubabuba Toll (BOI17_toll) C++14
100 / 100
 218 ms 142176 KB 
#include <bits/stdc++.h>
using namespace std;

const int inf = 0x3f3f3f3f;
const int mxn = 3e5 + 10;
const int LOG = 20;
int ans[6][6], tmp[6][6];
int dp[mxn][LOG][6][6];
int k, n, m, q;

void ono_min(int &s, int t) {
	if(s > t) s = t;
}

int box(int u) {
	return u / k;
}

void build() {
	for(int i = 1; i <= LOG; i++) {
		for(int Lbox = 0; Lbox <= box(n - 1); Lbox++) {
			int Mbox = Lbox + (1 << (i - 1));
			int Rbox = Lbox + (1 << i);
			if(Rbox > box(n - 1)) continue;

			for(int l = 0; l < k; l++)
			for(int r = 0; r < k; r++)
			for(int m = 0; m < k; m++)
			ono_min(dp[Lbox][i][l][r], dp[Lbox][i - 1][l][m] + dp[Mbox][i - 1][m][r]);

			// cout << "  > " << Lbox << ' ' << Rbox << '\n';
			// for(int l = 0; l < k; l++)
			// for(int r = 0; r < k; r++) {
			// 	int Lnode = Lbox * k + l;
			// 	int Rnode = Rbox * k + r;
			// 	cout << Lnode << ' ' << Rnode << ": " << dp[Lbox][i][l][r] << '\n';
			// }
		}
	}
}

int main() {
	cin >> k >> n >> m >> q;
	for(int i = 0; i <= box(n - 1); i++)
	for(int j = 0; j < LOG; j++)
	for(int l = 0; l < k; l++)
	for(int r = 0; r < k; r++)
	dp[i][j][l][r] = inf;

	for(int i = 0; i < m; i++) {
		int s, f, t;
		cin >> s >> f >> t;
		dp[box(s)][0][s % k][f % k] = t;
	}

	build();

	while(q--) {
		int Lnode, Rnode;
		cin >> Lnode >> Rnode;

		for(int i = 0; i < k; i++)
		for(int j = 0; j < k; j++)
			ans[i][j] = inf;

		for(int i = 0; i < k; i++)
			ans[i][i] = 0;

		int Lbox = box(Lnode), Rbox = box(Rnode);
		for(int lg = LOG - 1; lg >= 0; lg--) {
			if(Lbox + (1 << lg) <= Rbox) {
				for(int i = 0; i < k; i++)
				for(int j = 0; j < k; j++)
					tmp[i][j] = inf;

				for(int i = 0; i < k; i++)
				for(int j = 0; j < k; j++)
				for(int m = 0; m < k; m++)
					ono_min(tmp[i][j], ans[i][m] + dp[Lbox][lg][m][j]);

				for(int i = 0; i < k; i++)
				for(int j = 0; j < k; j++) {
					// int Lnode = Lbox * k + i;
					// int Rnode = Rbox * k + j;
					// cout << Lnode << ' ' << Rnode << ": " << tmp[i][j] << '\n';
					ans[i][j] = tmp[i][j];
				}
				Lbox += (1 << lg);
			}
		}

		cout << ((ans[Lnode % k][Rnode % k] == inf) ? -1 : ans[Lnode % k][Rnode % k]) << '\n';
	}

	return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 141184 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 5 ms 3132 KB Output is correct
6 Correct 4 ms 3028 KB Output is correct
7 Correct 4 ms 3144 KB Output is correct
8 Correct 128 ms 142032 KB Output is correct
9 Correct 127 ms 142044 KB Output is correct
10 Correct 89 ms 141356 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 140 ms 70744 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 308 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 19 ms 3208 KB Output is correct
8 Correct 20 ms 1748 KB Output is correct
9 Correct 125 ms 142084 KB Output is correct
10 Correct 179 ms 49536 KB Output is correct
11 Correct 146 ms 72524 KB Output is correct
12 Correct 126 ms 48588 KB Output is correct
13 Correct 141 ms 19500 KB Output is correct
14 Correct 94 ms 29864 KB Output is correct
15 Correct 91 ms 18344 KB Output is correct
16 Correct 95 ms 18344 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 3 ms 3028 KB Output is correct
7 Correct 2 ms 1748 KB Output is correct
8 Correct 4 ms 924 KB Output is correct
9 Correct 3 ms 980 KB Output is correct
10 Correct 106 ms 141980 KB Output is correct
11 Correct 125 ms 72200 KB Output is correct
12 Correct 145 ms 49412 KB Output is correct
13 Correct 152 ms 49680 KB Output is correct
14 Correct 133 ms 49032 KB Output is correct
15 Correct 91 ms 18328 KB Output is correct
16 Correct 87 ms 18376 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 3 ms 3028 KB Output is correct
7 Correct 2 ms 1748 KB Output is correct
8 Correct 4 ms 924 KB Output is correct
9 Correct 3 ms 980 KB Output is correct
10 Correct 106 ms 141980 KB Output is correct
11 Correct 125 ms 72200 KB Output is correct
12 Correct 145 ms 49412 KB Output is correct
13 Correct 152 ms 49680 KB Output is correct
14 Correct 133 ms 49032 KB Output is correct
15 Correct 91 ms 18328 KB Output is correct
16 Correct 87 ms 18376 KB Output is correct
17 Correct 129 ms 72256 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 312 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 8 ms 3156 KB Output is correct
24 Correct 8 ms 1748 KB Output is correct
25 Correct 12 ms 956 KB Output is correct
26 Correct 12 ms 1088 KB Output is correct
27 Correct 114 ms 142096 KB Output is correct
28 Correct 153 ms 49456 KB Output is correct
29 Correct 168 ms 49668 KB Output is correct
30 Correct 166 ms 49028 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 141184 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 5 ms 3132 KB Output is correct
6 Correct 4 ms 3028 KB Output is correct
7 Correct 4 ms 3144 KB Output is correct
8 Correct 128 ms 142032 KB Output is correct
9 Correct 127 ms 142044 KB Output is correct
10 Correct 89 ms 141356 KB Output is correct
11 Correct 140 ms 70744 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 308 KB Output is correct
14 Correct 1 ms 308 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 19 ms 3208 KB Output is correct
18 Correct 20 ms 1748 KB Output is correct
19 Correct 125 ms 142084 KB Output is correct
20 Correct 179 ms 49536 KB Output is correct
21 Correct 146 ms 72524 KB Output is correct
22 Correct 126 ms 48588 KB Output is correct
23 Correct 141 ms 19500 KB Output is correct
24 Correct 94 ms 29864 KB Output is correct
25 Correct 91 ms 18344 KB Output is correct
26 Correct 95 ms 18344 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 0 ms 308 KB Output is correct
32 Correct 3 ms 3028 KB Output is correct
33 Correct 2 ms 1748 KB Output is correct
34 Correct 4 ms 924 KB Output is correct
35 Correct 3 ms 980 KB Output is correct
36 Correct 106 ms 141980 KB Output is correct
37 Correct 125 ms 72200 KB Output is correct
38 Correct 145 ms 49412 KB Output is correct
39 Correct 152 ms 49680 KB Output is correct
40 Correct 133 ms 49032 KB Output is correct
41 Correct 91 ms 18328 KB Output is correct
42 Correct 87 ms 18376 KB Output is correct
43 Correct 129 ms 72256 KB Output is correct
44 Correct 0 ms 340 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 1 ms 312 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 8 ms 3156 KB Output is correct
50 Correct 8 ms 1748 KB Output is correct
51 Correct 12 ms 956 KB Output is correct
52 Correct 12 ms 1088 KB Output is correct
53 Correct 114 ms 142096 KB Output is correct
54 Correct 153 ms 49456 KB Output is correct
55 Correct 168 ms 49668 KB Output is correct
56 Correct 166 ms 49028 KB Output is correct
57 Correct 218 ms 38884 KB Output is correct
58 Correct 128 ms 142176 KB Output is correct
59 Correct 145 ms 72512 KB Output is correct