oj.uz

답안 #526777

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
526777 2022-02-16T04:56:32 Z hmm789 Autobus (COCI22_autobus) C++14
70 / 70
 371 ms 3524 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long

int32_t main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n, e, x, y, w, k, q;
	cin >> n >> e;
	int adj[n][n], res;
	int dist[n][n][n];
	memset(adj, -1, sizeof(adj));
	memset(dist, -1, sizeof(dist));
	for(int i = 0; i < e; i++) {
		cin >> x >> y >> w;
		x--; y--;
		if(adj[x][y] == -1) adj[x][y] = w;
		else adj[x][y] = min(adj[x][y], w);
	}
	cin >> k >> q;
  	k = min(k, n-1);
	priority_queue<pair<int, pair<int, int>>, vector<pair<int, pair<int, int>>>, greater<pair<int, pair<int, int>>>> pq;
	for(int i = 0; i < n; i++) {
		dist[i][i][0] = 0;
		pq.push(make_pair(0, make_pair(i, 0)));
		while(!pq.empty()) {
			pair<int, pair<int, int>> c = pq.top();
			pq.pop();
			if(c.first != dist[i][c.second.first][c.second.second]) continue;
			if(c.second.second == k || c.second.second == n) continue;
			for(int j = 0; j < n; j++) {
				if(adj[c.second.first][j] == -1) continue;
				if(dist[i][j][c.second.second+1] == -1 || dist[i][j][c.second.second+1] > c.first + adj[c.second.first][j]) {
					dist[i][j][c.second.second+1] = c.first + adj[c.second.first][j];
					pq.push(make_pair(dist[i][j][c.second.second+1], make_pair(j, c.second.second+1)));
				}
			}
		}
	}
	for(int i = 0; i < q; i++) {
		cin >> x >> y;
		x--; y--;
		res = 1e18;
		for(int j = 0; j < n; j++) if(dist[x][y][j] != -1) res = min(res, dist[x][y][j]);
		if(res == 1e18) cout << -1 << '\n';
		else cout << res << '\n';
	}
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 3028 KB Output is correct
2 Correct 4 ms 3020 KB Output is correct
3 Correct 4 ms 3020 KB Output is correct
4 Correct 4 ms 3020 KB Output is correct
5 Correct 6 ms 3044 KB Output is correct
6 Correct 7 ms 3036 KB Output is correct
7 Correct 10 ms 3148 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 41 ms 3104 KB Output is correct
8 Correct 122 ms 3212 KB Output is correct
9 Correct 9 ms 3020 KB Output is correct
10 Correct 103 ms 3092 KB Output is correct
11 Correct 38 ms 3108 KB Output is correct
12 Correct 174 ms 3304 KB Output is correct
13 Correct 92 ms 3020 KB Output is correct
14 Correct 99 ms 3028 KB Output is correct
15 Correct 283 ms 3328 KB Output is correct
16 Correct 145 ms 3180 KB Output is correct
17 Correct 91 ms 3024 KB Output is correct
18 Correct 110 ms 3020 KB Output is correct
19 Correct 251 ms 3140 KB Output is correct
20 Correct 170 ms 3028 KB Output is correct
21 Correct 88 ms 3020 KB Output is correct
22 Correct 134 ms 3020 KB Output is correct
23 Correct 133 ms 3020 KB Output is correct
24 Correct 179 ms 3020 KB Output is correct
25 Correct 104 ms 3020 KB Output is correct
26 Correct 135 ms 3020 KB Output is correct
27 Correct 164 ms 3020 KB Output is correct
28 Correct 141 ms 3108 KB Output is correct
29 Correct 113 ms 3136 KB Output is correct
30 Correct 133 ms 3184 KB Output is correct
31 Correct 216 ms 3468 KB Output is correct
32 Correct 371 ms 3520 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 4 ms 3028 KB Output is correct
8 Correct 4 ms 3020 KB Output is correct
9 Correct 4 ms 3020 KB Output is correct
10 Correct 4 ms 3020 KB Output is correct
11 Correct 6 ms 3044 KB Output is correct
12 Correct 7 ms 3036 KB Output is correct
13 Correct 10 ms 3148 KB Output is correct
14 Correct 41 ms 3104 KB Output is correct
15 Correct 122 ms 3212 KB Output is correct
16 Correct 9 ms 3020 KB Output is correct
17 Correct 103 ms 3092 KB Output is correct
18 Correct 38 ms 3108 KB Output is correct
19 Correct 174 ms 3304 KB Output is correct
20 Correct 92 ms 3020 KB Output is correct
21 Correct 99 ms 3028 KB Output is correct
22 Correct 283 ms 3328 KB Output is correct
23 Correct 145 ms 3180 KB Output is correct
24 Correct 91 ms 3024 KB Output is correct
25 Correct 110 ms 3020 KB Output is correct
26 Correct 251 ms 3140 KB Output is correct
27 Correct 170 ms 3028 KB Output is correct
28 Correct 88 ms 3020 KB Output is correct
29 Correct 134 ms 3020 KB Output is correct
30 Correct 133 ms 3020 KB Output is correct
31 Correct 179 ms 3020 KB Output is correct
32 Correct 104 ms 3020 KB Output is correct
33 Correct 135 ms 3020 KB Output is correct
34 Correct 164 ms 3020 KB Output is correct
35 Correct 141 ms 3108 KB Output is correct
36 Correct 113 ms 3136 KB Output is correct
37 Correct 133 ms 3184 KB Output is correct
38 Correct 216 ms 3468 KB Output is correct
39 Correct 371 ms 3520 KB Output is correct
40 Correct 29 ms 3076 KB Output is correct
41 Correct 113 ms 3112 KB Output is correct
42 Correct 19 ms 3076 KB Output is correct
43 Correct 205 ms 3104 KB Output is correct
44 Correct 38 ms 3020 KB Output is correct
45 Correct 296 ms 3468 KB Output is correct
46 Correct 94 ms 3020 KB Output is correct
47 Correct 202 ms 3272 KB Output is correct
48 Correct 130 ms 3268 KB Output is correct
49 Correct 338 ms 3468 KB Output is correct
50 Correct 95 ms 3024 KB Output is correct
51 Correct 129 ms 3020 KB Output is correct
52 Correct 93 ms 3020 KB Output is correct
53 Correct 268 ms 3192 KB Output is correct
54 Correct 88 ms 3020 KB Output is correct
55 Correct 103 ms 3020 KB Output is correct
56 Correct 259 ms 3140 KB Output is correct
57 Correct 271 ms 3028 KB Output is correct
58 Correct 94 ms 3020 KB Output is correct
59 Correct 199 ms 3268 KB Output is correct
60 Correct 272 ms 3140 KB Output is correct
61 Correct 341 ms 3172 KB Output is correct
62 Correct 89 ms 3020 KB Output is correct
63 Correct 133 ms 3196 KB Output is correct
64 Correct 160 ms 3264 KB Output is correct
65 Correct 333 ms 3524 KB Output is correct