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답안 #760305

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
760305 2023-06-17T12:12:39 Z mgl_diamond Toll (BOI17_toll) C++14
100 / 100
 119 ms 83596 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:29:51: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   29 |    combine(dp[i][j], dp[i][j - 1], dp[i + (1 << j - 1)][j - 1]);
      |                                                 ~~^~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 83 ms 83484 KB Output is correct
2 Correct 38 ms 83428 KB Output is correct
3 Correct 29 ms 83384 KB Output is correct
4 Correct 31 ms 83408 KB Output is correct
5 Correct 30 ms 83440 KB Output is correct
6 Correct 34 ms 83448 KB Output is correct
7 Correct 33 ms 83472 KB Output is correct
8 Correct 69 ms 83468 KB Output is correct
9 Correct 70 ms 83472 KB Output is correct
10 Correct 61 ms 83596 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 94 ms 83512 KB Output is correct
2 Correct 33 ms 83464 KB Output is correct
3 Correct 34 ms 83380 KB Output is correct
4 Correct 35 ms 83472 KB Output is correct
5 Correct 32 ms 83404 KB Output is correct
6 Correct 32 ms 83464 KB Output is correct
7 Correct 37 ms 83488 KB Output is correct
8 Correct 38 ms 83456 KB Output is correct
9 Correct 70 ms 83472 KB Output is correct
10 Correct 106 ms 83484 KB Output is correct
11 Correct 86 ms 83544 KB Output is correct
12 Correct 78 ms 83476 KB Output is correct
13 Correct 82 ms 83476 KB Output is correct
14 Correct 70 ms 83472 KB Output is correct
15 Correct 70 ms 83468 KB Output is correct
16 Correct 64 ms 83468 KB Output is correct

Subtask #3
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 83360 KB Output is correct
2 Correct 34 ms 83456 KB Output is correct
3 Correct 36 ms 83460 KB Output is correct
4 Correct 34 ms 83432 KB Output is correct
5 Correct 36 ms 83476 KB Output is correct
6 Correct 33 ms 83380 KB Output is correct
7 Correct 34 ms 83460 KB Output is correct
8 Correct 39 ms 83392 KB Output is correct
9 Correct 36 ms 83420 KB Output is correct
10 Correct 69 ms 83432 KB Output is correct
11 Correct 89 ms 83472 KB Output is correct
12 Correct 119 ms 83388 KB Output is correct
13 Correct 89 ms 83400 KB Output is correct
14 Correct 81 ms 83476 KB Output is correct
15 Correct 61 ms 83468 KB Output is correct
16 Correct 58 ms 83484 KB Output is correct

Subtask #4
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 37 ms 83360 KB Output is correct
2 Correct 34 ms 83456 KB Output is correct
3 Correct 36 ms 83460 KB Output is correct
4 Correct 34 ms 83432 KB Output is correct
5 Correct 36 ms 83476 KB Output is correct
6 Correct 33 ms 83380 KB Output is correct
7 Correct 34 ms 83460 KB Output is correct
8 Correct 39 ms 83392 KB Output is correct
9 Correct 36 ms 83420 KB Output is correct
10 Correct 69 ms 83432 KB Output is correct
11 Correct 89 ms 83472 KB Output is correct
12 Correct 119 ms 83388 KB Output is correct
13 Correct 89 ms 83400 KB Output is correct
14 Correct 81 ms 83476 KB Output is correct
15 Correct 61 ms 83468 KB Output is correct
16 Correct 58 ms 83484 KB Output is correct
17 Correct 95 ms 83476 KB Output is correct
18 Correct 35 ms 83468 KB Output is correct
19 Correct 35 ms 83400 KB Output is correct
20 Correct 32 ms 83472 KB Output is correct
21 Correct 35 ms 83412 KB Output is correct
22 Correct 34 ms 83368 KB Output is correct
23 Correct 38 ms 83368 KB Output is correct
24 Correct 36 ms 83468 KB Output is correct
25 Correct 37 ms 83464 KB Output is correct
26 Correct 40 ms 83416 KB Output is correct
27 Correct 74 ms 83468 KB Output is correct
28 Correct 93 ms 83472 KB Output is correct
29 Correct 109 ms 83464 KB Output is correct
30 Correct 95 ms 83448 KB Output is correct

Subtask #5
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 83 ms 83484 KB Output is correct
2 Correct 38 ms 83428 KB Output is correct
3 Correct 29 ms 83384 KB Output is correct
4 Correct 31 ms 83408 KB Output is correct
5 Correct 30 ms 83440 KB Output is correct
6 Correct 34 ms 83448 KB Output is correct
7 Correct 33 ms 83472 KB Output is correct
8 Correct 69 ms 83468 KB Output is correct
9 Correct 70 ms 83472 KB Output is correct
10 Correct 61 ms 83596 KB Output is correct
11 Correct 94 ms 83512 KB Output is correct
12 Correct 33 ms 83464 KB Output is correct
13 Correct 34 ms 83380 KB Output is correct
14 Correct 35 ms 83472 KB Output is correct
15 Correct 32 ms 83404 KB Output is correct
16 Correct 32 ms 83464 KB Output is correct
17 Correct 37 ms 83488 KB Output is correct
18 Correct 38 ms 83456 KB Output is correct
19 Correct 70 ms 83472 KB Output is correct
20 Correct 106 ms 83484 KB Output is correct
21 Correct 86 ms 83544 KB Output is correct
22 Correct 78 ms 83476 KB Output is correct
23 Correct 82 ms 83476 KB Output is correct
24 Correct 70 ms 83472 KB Output is correct
25 Correct 70 ms 83468 KB Output is correct
26 Correct 64 ms 83468 KB Output is correct
27 Correct 37 ms 83360 KB Output is correct
28 Correct 34 ms 83456 KB Output is correct
29 Correct 36 ms 83460 KB Output is correct
30 Correct 34 ms 83432 KB Output is correct
31 Correct 36 ms 83476 KB Output is correct
32 Correct 33 ms 83380 KB Output is correct
33 Correct 34 ms 83460 KB Output is correct
34 Correct 39 ms 83392 KB Output is correct
35 Correct 36 ms 83420 KB Output is correct
36 Correct 69 ms 83432 KB Output is correct
37 Correct 89 ms 83472 KB Output is correct
38 Correct 119 ms 83388 KB Output is correct
39 Correct 89 ms 83400 KB Output is correct
40 Correct 81 ms 83476 KB Output is correct
41 Correct 61 ms 83468 KB Output is correct
42 Correct 58 ms 83484 KB Output is correct
43 Correct 95 ms 83476 KB Output is correct
44 Correct 35 ms 83468 KB Output is correct
45 Correct 35 ms 83400 KB Output is correct
46 Correct 32 ms 83472 KB Output is correct
47 Correct 35 ms 83412 KB Output is correct
48 Correct 34 ms 83368 KB Output is correct
49 Correct 38 ms 83368 KB Output is correct
50 Correct 36 ms 83468 KB Output is correct
51 Correct 37 ms 83464 KB Output is correct
52 Correct 40 ms 83416 KB Output is correct
53 Correct 74 ms 83468 KB Output is correct
54 Correct 93 ms 83472 KB Output is correct
55 Correct 109 ms 83464 KB Output is correct
56 Correct 95 ms 83448 KB Output is correct
57 Correct 114 ms 83468 KB Output is correct
58 Correct 72 ms 83476 KB Output is correct
59 Correct 85 ms 83472 KB Output is correct