#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int best_path(int n, int k, int H[][2], int L[]) {
vector<int> adj[n];
ll dis[n][n] {};
int cost[n][n] {}, D[n][n] {};
for(int i = 0; i < n - 1; i++) {
adj[H[i][0]].push_back(H[i][1]);
adj[H[i][1]].push_back(H[i][0]);
cost[H[i][0]][H[i][1]] = L[i];
cost[H[i][1]][H[i][0]] = L[i];
}
for(int i = 0; i < n; i++) {
bool vis[n] {};
queue<int> q;
q.push(i);
vis[i] = 1;
while(!q.empty()) {
int x = q.front();
q.pop();
for(int X : adj[x]) {
if(!vis[X]) {
dis[i][X] = dis[i][x] + cost[x][X];
D[i][X] = D[i][x] + 1;
vis[X] = 1;
q.push(X);
}
}
}
}
int mn = 1e9;
for(int i = 0; i < n; i++) {
for(int j = 0; j < n; j++) {
if(i == j) continue;
if(dis[i][j] == k) {
mn = min(mn, D[i][j]);
}
}
}
if(mn == 1e9) mn = -1;
return mn;
}
//int main() {
// ios::sync_with_stdio(0);
// cin.tie(0);
// int n, k;
// cin >> n >> k;
// int H[n][2], L[n];
// for(int i = 0; i < n - 1; i++) {
// cin >> H[i][0] >> H[i][1];
// }
// for(int i = 0; i < n - 1; i++) {
// cin >> L[i];
// }
//
// return 0;
//}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2648 KB |
Output is correct |
2 |
Correct |
1 ms |
2652 KB |
Output is correct |
3 |
Correct |
0 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
2648 KB |
Output is correct |
7 |
Correct |
0 ms |
2652 KB |
Output is correct |
8 |
Correct |
0 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
604 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
0 ms |
604 KB |
Output is correct |
17 |
Correct |
0 ms |
604 KB |
Output is correct |
18 |
Correct |
1 ms |
2652 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2648 KB |
Output is correct |
2 |
Correct |
1 ms |
2652 KB |
Output is correct |
3 |
Correct |
0 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
2648 KB |
Output is correct |
7 |
Correct |
0 ms |
2652 KB |
Output is correct |
8 |
Correct |
0 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
604 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
0 ms |
604 KB |
Output is correct |
17 |
Correct |
0 ms |
604 KB |
Output is correct |
18 |
Correct |
1 ms |
2652 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
604 KB |
Output is correct |
21 |
Correct |
19 ms |
16036 KB |
Output is correct |
22 |
Correct |
22 ms |
15964 KB |
Output is correct |
23 |
Correct |
17 ms |
18012 KB |
Output is correct |
24 |
Correct |
22 ms |
18204 KB |
Output is correct |
25 |
Correct |
17 ms |
18008 KB |
Output is correct |
26 |
Correct |
17 ms |
18012 KB |
Output is correct |
27 |
Correct |
18 ms |
18012 KB |
Output is correct |
28 |
Correct |
18 ms |
18012 KB |
Output is correct |
29 |
Correct |
17 ms |
18012 KB |
Output is correct |
30 |
Correct |
17 ms |
18012 KB |
Output is correct |
31 |
Correct |
19 ms |
18012 KB |
Output is correct |
32 |
Correct |
18 ms |
18204 KB |
Output is correct |
33 |
Correct |
19 ms |
18012 KB |
Output is correct |
34 |
Correct |
15 ms |
15716 KB |
Output is correct |
35 |
Correct |
19 ms |
14996 KB |
Output is correct |
36 |
Correct |
16 ms |
13228 KB |
Output is correct |
37 |
Correct |
12 ms |
13148 KB |
Output is correct |
38 |
Correct |
15 ms |
15924 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2648 KB |
Output is correct |
2 |
Correct |
1 ms |
2652 KB |
Output is correct |
3 |
Correct |
0 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
2648 KB |
Output is correct |
7 |
Correct |
0 ms |
2652 KB |
Output is correct |
8 |
Correct |
0 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
604 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
0 ms |
604 KB |
Output is correct |
17 |
Correct |
0 ms |
604 KB |
Output is correct |
18 |
Correct |
1 ms |
2652 KB |
Output is correct |
19 |
Runtime error |
151 ms |
262144 KB |
Execution killed with signal 9 |
20 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2648 KB |
Output is correct |
2 |
Correct |
1 ms |
2652 KB |
Output is correct |
3 |
Correct |
0 ms |
604 KB |
Output is correct |
4 |
Correct |
0 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
2648 KB |
Output is correct |
7 |
Correct |
0 ms |
2652 KB |
Output is correct |
8 |
Correct |
0 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
604 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
0 ms |
604 KB |
Output is correct |
17 |
Correct |
0 ms |
604 KB |
Output is correct |
18 |
Correct |
1 ms |
2652 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
604 KB |
Output is correct |
21 |
Correct |
19 ms |
16036 KB |
Output is correct |
22 |
Correct |
22 ms |
15964 KB |
Output is correct |
23 |
Correct |
17 ms |
18012 KB |
Output is correct |
24 |
Correct |
22 ms |
18204 KB |
Output is correct |
25 |
Correct |
17 ms |
18008 KB |
Output is correct |
26 |
Correct |
17 ms |
18012 KB |
Output is correct |
27 |
Correct |
18 ms |
18012 KB |
Output is correct |
28 |
Correct |
18 ms |
18012 KB |
Output is correct |
29 |
Correct |
17 ms |
18012 KB |
Output is correct |
30 |
Correct |
17 ms |
18012 KB |
Output is correct |
31 |
Correct |
19 ms |
18012 KB |
Output is correct |
32 |
Correct |
18 ms |
18204 KB |
Output is correct |
33 |
Correct |
19 ms |
18012 KB |
Output is correct |
34 |
Correct |
15 ms |
15716 KB |
Output is correct |
35 |
Correct |
19 ms |
14996 KB |
Output is correct |
36 |
Correct |
16 ms |
13228 KB |
Output is correct |
37 |
Correct |
12 ms |
13148 KB |
Output is correct |
38 |
Correct |
15 ms |
15924 KB |
Output is correct |
39 |
Runtime error |
151 ms |
262144 KB |
Execution killed with signal 9 |
40 |
Halted |
0 ms |
0 KB |
- |