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Submission #1003884

# Submission time Handle Problem Language Result Execution time Memory
1003884 2024-06-20T19:35:28 Z tien_07 Toll (BOI17_toll) C++17
100 / 100
 59 ms 120408 KB 
#include <bits/stdc++.h>
using namespace std;

int k,n,m,q;
int dp[50000][17][6][6], ans[6][6], tmp[6][6];

void combine(int target[6][6], int a[6][6], int b[6][6]) {
	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]);
			}
		}
	}
}

void solve() {
    cin >> k >> n >> m >> q;
	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 (q--) {
		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';
	}
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    //freopen(TASK ".inp", "r", stdin);
    //freopen(TASK ".out", "w", stdout);
    int tc = 1; //cin >> tc;
    while (tc--) solve();
    return 0;
}

Compilation message

toll.cpp: In function 'void solve()':
toll.cpp:28:48: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   28 |    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 42 ms 120152 KB Output is correct
2 Correct 16 ms 120152 KB Output is correct
3 Correct 15 ms 120156 KB Output is correct
4 Correct 15 ms 120068 KB Output is correct
5 Correct 16 ms 120156 KB Output is correct
6 Correct 15 ms 120056 KB Output is correct
7 Correct 15 ms 120156 KB Output is correct
8 Correct 38 ms 120216 KB Output is correct
9 Correct 38 ms 120156 KB Output is correct
10 Correct 27 ms 120156 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 120156 KB Output is correct
2 Correct 16 ms 120156 KB Output is correct
3 Correct 15 ms 120012 KB Output is correct
4 Correct 15 ms 120156 KB Output is correct
5 Correct 15 ms 120156 KB Output is correct
6 Correct 16 ms 120156 KB Output is correct
7 Correct 18 ms 120116 KB Output is correct
8 Correct 19 ms 120232 KB Output is correct
9 Correct 37 ms 120156 KB Output is correct
10 Correct 53 ms 120152 KB Output is correct
11 Correct 54 ms 120220 KB Output is correct
12 Correct 45 ms 120156 KB Output is correct
13 Correct 45 ms 120212 KB Output is correct
14 Correct 38 ms 120152 KB Output is correct
15 Correct 35 ms 120152 KB Output is correct
16 Correct 36 ms 120156 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 120072 KB Output is correct
2 Correct 14 ms 120156 KB Output is correct
3 Correct 16 ms 120048 KB Output is correct
4 Correct 16 ms 120192 KB Output is correct
5 Correct 15 ms 120160 KB Output is correct
6 Correct 16 ms 119980 KB Output is correct
7 Correct 16 ms 120152 KB Output is correct
8 Correct 17 ms 120156 KB Output is correct
9 Correct 16 ms 120140 KB Output is correct
10 Correct 33 ms 120156 KB Output is correct
11 Correct 46 ms 120156 KB Output is correct
12 Correct 48 ms 120200 KB Output is correct
13 Correct 54 ms 120152 KB Output is correct
14 Correct 45 ms 120408 KB Output is correct
15 Correct 33 ms 120156 KB Output is correct
16 Correct 33 ms 120156 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 120072 KB Output is correct
2 Correct 14 ms 120156 KB Output is correct
3 Correct 16 ms 120048 KB Output is correct
4 Correct 16 ms 120192 KB Output is correct
5 Correct 15 ms 120160 KB Output is correct
6 Correct 16 ms 119980 KB Output is correct
7 Correct 16 ms 120152 KB Output is correct
8 Correct 17 ms 120156 KB Output is correct
9 Correct 16 ms 120140 KB Output is correct
10 Correct 33 ms 120156 KB Output is correct
11 Correct 46 ms 120156 KB Output is correct
12 Correct 48 ms 120200 KB Output is correct
13 Correct 54 ms 120152 KB Output is correct
14 Correct 45 ms 120408 KB Output is correct
15 Correct 33 ms 120156 KB Output is correct
16 Correct 33 ms 120156 KB Output is correct
17 Correct 48 ms 120156 KB Output is correct
18 Correct 15 ms 120152 KB Output is correct
19 Correct 16 ms 120072 KB Output is correct
20 Correct 15 ms 119992 KB Output is correct
21 Correct 17 ms 120164 KB Output is correct
22 Correct 16 ms 120152 KB Output is correct
23 Correct 17 ms 120156 KB Output is correct
24 Correct 17 ms 120156 KB Output is correct
25 Correct 18 ms 120220 KB Output is correct
26 Correct 18 ms 120156 KB Output is correct
27 Correct 35 ms 120156 KB Output is correct
28 Correct 50 ms 120216 KB Output is correct
29 Correct 53 ms 120152 KB Output is correct
30 Correct 48 ms 120156 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 120152 KB Output is correct
2 Correct 16 ms 120152 KB Output is correct
3 Correct 15 ms 120156 KB Output is correct
4 Correct 15 ms 120068 KB Output is correct
5 Correct 16 ms 120156 KB Output is correct
6 Correct 15 ms 120056 KB Output is correct
7 Correct 15 ms 120156 KB Output is correct
8 Correct 38 ms 120216 KB Output is correct
9 Correct 38 ms 120156 KB Output is correct
10 Correct 27 ms 120156 KB Output is correct
11 Correct 52 ms 120156 KB Output is correct
12 Correct 16 ms 120156 KB Output is correct
13 Correct 15 ms 120012 KB Output is correct
14 Correct 15 ms 120156 KB Output is correct
15 Correct 15 ms 120156 KB Output is correct
16 Correct 16 ms 120156 KB Output is correct
17 Correct 18 ms 120116 KB Output is correct
18 Correct 19 ms 120232 KB Output is correct
19 Correct 37 ms 120156 KB Output is correct
20 Correct 53 ms 120152 KB Output is correct
21 Correct 54 ms 120220 KB Output is correct
22 Correct 45 ms 120156 KB Output is correct
23 Correct 45 ms 120212 KB Output is correct
24 Correct 38 ms 120152 KB Output is correct
25 Correct 35 ms 120152 KB Output is correct
26 Correct 36 ms 120156 KB Output is correct
27 Correct 16 ms 120072 KB Output is correct
28 Correct 14 ms 120156 KB Output is correct
29 Correct 16 ms 120048 KB Output is correct
30 Correct 16 ms 120192 KB Output is correct
31 Correct 15 ms 120160 KB Output is correct
32 Correct 16 ms 119980 KB Output is correct
33 Correct 16 ms 120152 KB Output is correct
34 Correct 17 ms 120156 KB Output is correct
35 Correct 16 ms 120140 KB Output is correct
36 Correct 33 ms 120156 KB Output is correct
37 Correct 46 ms 120156 KB Output is correct
38 Correct 48 ms 120200 KB Output is correct
39 Correct 54 ms 120152 KB Output is correct
40 Correct 45 ms 120408 KB Output is correct
41 Correct 33 ms 120156 KB Output is correct
42 Correct 33 ms 120156 KB Output is correct
43 Correct 48 ms 120156 KB Output is correct
44 Correct 15 ms 120152 KB Output is correct
45 Correct 16 ms 120072 KB Output is correct
46 Correct 15 ms 119992 KB Output is correct
47 Correct 17 ms 120164 KB Output is correct
48 Correct 16 ms 120152 KB Output is correct
49 Correct 17 ms 120156 KB Output is correct
50 Correct 17 ms 120156 KB Output is correct
51 Correct 18 ms 120220 KB Output is correct
52 Correct 18 ms 120156 KB Output is correct
53 Correct 35 ms 120156 KB Output is correct
54 Correct 50 ms 120216 KB Output is correct
55 Correct 53 ms 120152 KB Output is correct
56 Correct 48 ms 120156 KB Output is correct
57 Correct 59 ms 120156 KB Output is correct
58 Correct 38 ms 120152 KB Output is correct
59 Correct 53 ms 120292 KB Output is correct