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답안 #590714

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
590714 2022-07-06T09:11:26 Z minhi1 Toll (BOI17_toll) C++14
100 / 100
 122 ms 86780 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 70 ms 84384 KB Output is correct
2 Correct 32 ms 83492 KB Output is correct
3 Correct 32 ms 83400 KB Output is correct
4 Correct 32 ms 83404 KB Output is correct
5 Correct 38 ms 83476 KB Output is correct
6 Correct 33 ms 83412 KB Output is correct
7 Correct 33 ms 83432 KB Output is correct
8 Correct 68 ms 84372 KB Output is correct
9 Correct 79 ms 84440 KB Output is correct
10 Correct 65 ms 83536 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 81 ms 84736 KB Output is correct
2 Correct 35 ms 83532 KB Output is correct
3 Correct 32 ms 83388 KB Output is correct
4 Correct 32 ms 83384 KB Output is correct
5 Correct 32 ms 83380 KB Output is correct
6 Correct 31 ms 83420 KB Output is correct
7 Correct 35 ms 83508 KB Output is correct
8 Correct 35 ms 83540 KB Output is correct
9 Correct 70 ms 84484 KB Output is correct
10 Correct 94 ms 85768 KB Output is correct
11 Correct 80 ms 85192 KB Output is correct
12 Correct 77 ms 84684 KB Output is correct
13 Correct 82 ms 85892 KB Output is correct
14 Correct 66 ms 84864 KB Output is correct
15 Correct 63 ms 84684 KB Output is correct
16 Correct 65 ms 84700 KB Output is correct

Subtask #3
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 31 ms 83460 KB Output is correct
2 Correct 31 ms 83484 KB Output is correct
3 Correct 37 ms 83456 KB Output is correct
4 Correct 34 ms 83420 KB Output is correct
5 Correct 33 ms 83416 KB Output is correct
6 Correct 33 ms 83396 KB Output is correct
7 Correct 33 ms 83456 KB Output is correct
8 Correct 38 ms 83528 KB Output is correct
9 Correct 33 ms 83424 KB Output is correct
10 Correct 61 ms 84216 KB Output is correct
11 Correct 78 ms 84944 KB Output is correct
12 Correct 87 ms 85552 KB Output is correct
13 Correct 95 ms 85884 KB Output is correct
14 Correct 86 ms 85288 KB Output is correct
15 Correct 70 ms 84556 KB Output is correct
16 Correct 77 ms 84644 KB Output is correct

Subtask #4
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 31 ms 83460 KB Output is correct
2 Correct 31 ms 83484 KB Output is correct
3 Correct 37 ms 83456 KB Output is correct
4 Correct 34 ms 83420 KB Output is correct
5 Correct 33 ms 83416 KB Output is correct
6 Correct 33 ms 83396 KB Output is correct
7 Correct 33 ms 83456 KB Output is correct
8 Correct 38 ms 83528 KB Output is correct
9 Correct 33 ms 83424 KB Output is correct
10 Correct 61 ms 84216 KB Output is correct
11 Correct 78 ms 84944 KB Output is correct
12 Correct 87 ms 85552 KB Output is correct
13 Correct 95 ms 85884 KB Output is correct
14 Correct 86 ms 85288 KB Output is correct
15 Correct 70 ms 84556 KB Output is correct
16 Correct 77 ms 84644 KB Output is correct
17 Correct 77 ms 85068 KB Output is correct
18 Correct 32 ms 83452 KB Output is correct
19 Correct 34 ms 83396 KB Output is correct
20 Correct 32 ms 83384 KB Output is correct
21 Correct 32 ms 83420 KB Output is correct
22 Correct 32 ms 83424 KB Output is correct
23 Correct 34 ms 83504 KB Output is correct
24 Correct 34 ms 83436 KB Output is correct
25 Correct 37 ms 83504 KB Output is correct
26 Correct 36 ms 83492 KB Output is correct
27 Correct 63 ms 84316 KB Output is correct
28 Correct 96 ms 85632 KB Output is correct
29 Correct 96 ms 85896 KB Output is correct
30 Correct 85 ms 85236 KB Output is correct

Subtask #5
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 70 ms 84384 KB Output is correct
2 Correct 32 ms 83492 KB Output is correct
3 Correct 32 ms 83400 KB Output is correct
4 Correct 32 ms 83404 KB Output is correct
5 Correct 38 ms 83476 KB Output is correct
6 Correct 33 ms 83412 KB Output is correct
7 Correct 33 ms 83432 KB Output is correct
8 Correct 68 ms 84372 KB Output is correct
9 Correct 79 ms 84440 KB Output is correct
10 Correct 65 ms 83536 KB Output is correct
11 Correct 81 ms 84736 KB Output is correct
12 Correct 35 ms 83532 KB Output is correct
13 Correct 32 ms 83388 KB Output is correct
14 Correct 32 ms 83384 KB Output is correct
15 Correct 32 ms 83380 KB Output is correct
16 Correct 31 ms 83420 KB Output is correct
17 Correct 35 ms 83508 KB Output is correct
18 Correct 35 ms 83540 KB Output is correct
19 Correct 70 ms 84484 KB Output is correct
20 Correct 94 ms 85768 KB Output is correct
21 Correct 80 ms 85192 KB Output is correct
22 Correct 77 ms 84684 KB Output is correct
23 Correct 82 ms 85892 KB Output is correct
24 Correct 66 ms 84864 KB Output is correct
25 Correct 63 ms 84684 KB Output is correct
26 Correct 65 ms 84700 KB Output is correct
27 Correct 31 ms 83460 KB Output is correct
28 Correct 31 ms 83484 KB Output is correct
29 Correct 37 ms 83456 KB Output is correct
30 Correct 34 ms 83420 KB Output is correct
31 Correct 33 ms 83416 KB Output is correct
32 Correct 33 ms 83396 KB Output is correct
33 Correct 33 ms 83456 KB Output is correct
34 Correct 38 ms 83528 KB Output is correct
35 Correct 33 ms 83424 KB Output is correct
36 Correct 61 ms 84216 KB Output is correct
37 Correct 78 ms 84944 KB Output is correct
38 Correct 87 ms 85552 KB Output is correct
39 Correct 95 ms 85884 KB Output is correct
40 Correct 86 ms 85288 KB Output is correct
41 Correct 70 ms 84556 KB Output is correct
42 Correct 77 ms 84644 KB Output is correct
43 Correct 77 ms 85068 KB Output is correct
44 Correct 32 ms 83452 KB Output is correct
45 Correct 34 ms 83396 KB Output is correct
46 Correct 32 ms 83384 KB Output is correct
47 Correct 32 ms 83420 KB Output is correct
48 Correct 32 ms 83424 KB Output is correct
49 Correct 34 ms 83504 KB Output is correct
50 Correct 34 ms 83436 KB Output is correct
51 Correct 37 ms 83504 KB Output is correct
52 Correct 36 ms 83492 KB Output is correct
53 Correct 63 ms 84316 KB Output is correct
54 Correct 96 ms 85632 KB Output is correct
55 Correct 96 ms 85896 KB Output is correct
56 Correct 85 ms 85236 KB Output is correct
57 Correct 122 ms 86780 KB Output is correct
58 Correct 68 ms 84388 KB Output is correct
59 Correct 87 ms 85288 KB Output is correct