#include<bits/stdc++.h>
using namespace std;
#define f first
#define s second
typedef long long ll;
typedef long double ld;
const int maxn = 75;
const ll inf = 1e18+5;
int n, m, k, q;
ll d[75][75][75];
ll adj[75][75];
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cin >> n >> m;
for(int i = 1; i <= n; i++){
for(int j = 1; j <= n; j++){
if(i == j)adj[i][j] = 0;
else adj[i][j] = inf;
}
}
for(int i = 0; i < m; i++){
int a, b, w;
cin >> a >> b >> w;
adj[a][b] = min<ll>(adj[a][b], w);
}
cin >> k >> q;
k = min(k, n);
for(int i = 1; i <= n; i++){
for(int j = 1; j <= n; j++){
for(int l = 0; l <= k; l++){
if(l == 0 && i == j)d[i][j][l] = 0;
else d[i][j][l] = inf;
}
}
}
for(int l = 1; l <= k; l++){
for(int i = 1; i <= n; i++){
for(int j = 1; j <= n; j++){
for(int v = 1; v <= n; v++){
d[i][j][l] = min(d[i][j][l], d[i][v][l-1] + adj[v][j]);
}
}
}
}
while(q--){
int a, b;
cin >> a >> b;
if(d[a][b][k] >= inf)cout << "-1";
else cout << d[a][b][k];
cout << "\n";
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
3412 KB |
Output is correct |
2 |
Correct |
3 ms |
3412 KB |
Output is correct |
3 |
Correct |
5 ms |
3412 KB |
Output is correct |
4 |
Correct |
3 ms |
3412 KB |
Output is correct |
5 |
Correct |
4 ms |
3412 KB |
Output is correct |
6 |
Correct |
4 ms |
3412 KB |
Output is correct |
7 |
Correct |
7 ms |
3412 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
7 |
Correct |
12 ms |
3412 KB |
Output is correct |
8 |
Correct |
30 ms |
3424 KB |
Output is correct |
9 |
Correct |
4 ms |
3412 KB |
Output is correct |
10 |
Correct |
17 ms |
3412 KB |
Output is correct |
11 |
Correct |
8 ms |
3444 KB |
Output is correct |
12 |
Correct |
20 ms |
3412 KB |
Output is correct |
13 |
Correct |
84 ms |
3468 KB |
Output is correct |
14 |
Correct |
90 ms |
3560 KB |
Output is correct |
15 |
Correct |
107 ms |
3548 KB |
Output is correct |
16 |
Correct |
96 ms |
5016 KB |
Output is correct |
17 |
Correct |
89 ms |
4888 KB |
Output is correct |
18 |
Correct |
88 ms |
5044 KB |
Output is correct |
19 |
Correct |
121 ms |
4956 KB |
Output is correct |
20 |
Correct |
101 ms |
4940 KB |
Output is correct |
21 |
Correct |
90 ms |
4924 KB |
Output is correct |
22 |
Correct |
94 ms |
4952 KB |
Output is correct |
23 |
Correct |
96 ms |
4988 KB |
Output is correct |
24 |
Correct |
106 ms |
4884 KB |
Output is correct |
25 |
Correct |
96 ms |
4964 KB |
Output is correct |
26 |
Correct |
96 ms |
4900 KB |
Output is correct |
27 |
Correct |
107 ms |
4956 KB |
Output is correct |
28 |
Correct |
125 ms |
4944 KB |
Output is correct |
29 |
Correct |
88 ms |
4812 KB |
Output is correct |
30 |
Correct |
99 ms |
4864 KB |
Output is correct |
31 |
Correct |
100 ms |
4912 KB |
Output is correct |
32 |
Correct |
113 ms |
4836 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
7 |
Correct |
3 ms |
3412 KB |
Output is correct |
8 |
Correct |
3 ms |
3412 KB |
Output is correct |
9 |
Correct |
5 ms |
3412 KB |
Output is correct |
10 |
Correct |
3 ms |
3412 KB |
Output is correct |
11 |
Correct |
4 ms |
3412 KB |
Output is correct |
12 |
Correct |
4 ms |
3412 KB |
Output is correct |
13 |
Correct |
7 ms |
3412 KB |
Output is correct |
14 |
Correct |
12 ms |
3412 KB |
Output is correct |
15 |
Correct |
30 ms |
3424 KB |
Output is correct |
16 |
Correct |
4 ms |
3412 KB |
Output is correct |
17 |
Correct |
17 ms |
3412 KB |
Output is correct |
18 |
Correct |
8 ms |
3444 KB |
Output is correct |
19 |
Correct |
20 ms |
3412 KB |
Output is correct |
20 |
Correct |
84 ms |
3468 KB |
Output is correct |
21 |
Correct |
90 ms |
3560 KB |
Output is correct |
22 |
Correct |
107 ms |
3548 KB |
Output is correct |
23 |
Correct |
96 ms |
5016 KB |
Output is correct |
24 |
Correct |
89 ms |
4888 KB |
Output is correct |
25 |
Correct |
88 ms |
5044 KB |
Output is correct |
26 |
Correct |
121 ms |
4956 KB |
Output is correct |
27 |
Correct |
101 ms |
4940 KB |
Output is correct |
28 |
Correct |
90 ms |
4924 KB |
Output is correct |
29 |
Correct |
94 ms |
4952 KB |
Output is correct |
30 |
Correct |
96 ms |
4988 KB |
Output is correct |
31 |
Correct |
106 ms |
4884 KB |
Output is correct |
32 |
Correct |
96 ms |
4964 KB |
Output is correct |
33 |
Correct |
96 ms |
4900 KB |
Output is correct |
34 |
Correct |
107 ms |
4956 KB |
Output is correct |
35 |
Correct |
125 ms |
4944 KB |
Output is correct |
36 |
Correct |
88 ms |
4812 KB |
Output is correct |
37 |
Correct |
99 ms |
4864 KB |
Output is correct |
38 |
Correct |
100 ms |
4912 KB |
Output is correct |
39 |
Correct |
113 ms |
4836 KB |
Output is correct |
40 |
Correct |
9 ms |
3412 KB |
Output is correct |
41 |
Correct |
29 ms |
3460 KB |
Output is correct |
42 |
Correct |
6 ms |
3412 KB |
Output is correct |
43 |
Correct |
32 ms |
3476 KB |
Output is correct |
44 |
Correct |
7 ms |
3540 KB |
Output is correct |
45 |
Correct |
31 ms |
3504 KB |
Output is correct |
46 |
Correct |
91 ms |
4964 KB |
Output is correct |
47 |
Correct |
114 ms |
4944 KB |
Output is correct |
48 |
Correct |
95 ms |
4988 KB |
Output is correct |
49 |
Correct |
113 ms |
4856 KB |
Output is correct |
50 |
Correct |
91 ms |
5068 KB |
Output is correct |
51 |
Correct |
99 ms |
4992 KB |
Output is correct |
52 |
Correct |
93 ms |
5116 KB |
Output is correct |
53 |
Correct |
110 ms |
4852 KB |
Output is correct |
54 |
Correct |
91 ms |
5028 KB |
Output is correct |
55 |
Correct |
92 ms |
4444 KB |
Output is correct |
56 |
Correct |
110 ms |
4440 KB |
Output is correct |
57 |
Correct |
117 ms |
4452 KB |
Output is correct |
58 |
Correct |
96 ms |
4440 KB |
Output is correct |
59 |
Correct |
100 ms |
4460 KB |
Output is correct |
60 |
Correct |
115 ms |
4584 KB |
Output is correct |
61 |
Correct |
126 ms |
4452 KB |
Output is correct |
62 |
Correct |
92 ms |
4368 KB |
Output is correct |
63 |
Correct |
90 ms |
4420 KB |
Output is correct |
64 |
Correct |
105 ms |
4132 KB |
Output is correct |
65 |
Correct |
110 ms |
4272 KB |
Output is correct |