#include<bits/stdc++.h>
#define int long long
#define pb push_back
#define mp make_pair
using namespace std;
const int mod = 1e9 + 7;
const int inf = 1e17*2;
const int N = 3e5 + 5;
int32_t main(){
int n, m;
cin>>n>>m;
int edge[n][n], dis[n][n][n];
for(int i = 0; i < n; i++){
for(int j = 0; j < n; j++){
edge[i][j] = inf;
for(int l = 0; l < n; l++){
dis[i][j][l] = inf;
}
}
}
for(int i = 0; i < m; i++){
int u, v, w;
cin>>u>>v>>w;
edge[u-1][v-1] = min(edge[u-1][v-1], w);
}
int k, q;
cin>>k>>q;
for(int i = 0; i < n; i++){
for(int j = 0; j < n; j++){
dis[i][j][1] = edge[i][j];
}
dis[i][i][1] = 0;
}
for(int asama = 2; asama < n; asama++){
for(int l = 0; l < n; l++){
for(int i = 0; i < n; i++){
for(int j = 0; j < n; j++){
dis[i][j][asama] = min(dis[i][j][asama], dis[i][l][asama-1] + dis[l][j][1]);
}
}
}
}
while(q--){
int c, d;
cin>>c>>d;
c--, d--;
if(dis[c][d][min(k, n-1)] == inf) cout<<-1<<endl;
else cout<<dis[c][d][min(k, n-1)]<<endl;
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
50 ms |
3156 KB |
Output is correct |
2 |
Correct |
44 ms |
3156 KB |
Output is correct |
3 |
Correct |
45 ms |
3156 KB |
Output is correct |
4 |
Correct |
48 ms |
3164 KB |
Output is correct |
5 |
Correct |
45 ms |
3164 KB |
Output is correct |
6 |
Correct |
46 ms |
3220 KB |
Output is correct |
7 |
Correct |
47 ms |
3204 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
45 ms |
3160 KB |
Output is correct |
8 |
Correct |
45 ms |
3180 KB |
Output is correct |
9 |
Correct |
44 ms |
3160 KB |
Output is correct |
10 |
Correct |
44 ms |
3180 KB |
Output is correct |
11 |
Correct |
46 ms |
3164 KB |
Output is correct |
12 |
Correct |
46 ms |
3160 KB |
Output is correct |
13 |
Correct |
290 ms |
9252 KB |
Output is correct |
14 |
Correct |
267 ms |
9140 KB |
Output is correct |
15 |
Correct |
277 ms |
9300 KB |
Output is correct |
16 |
Correct |
265 ms |
9044 KB |
Output is correct |
17 |
Correct |
275 ms |
9296 KB |
Output is correct |
18 |
Correct |
273 ms |
9300 KB |
Output is correct |
19 |
Correct |
268 ms |
9136 KB |
Output is correct |
20 |
Correct |
274 ms |
9384 KB |
Output is correct |
21 |
Correct |
270 ms |
9296 KB |
Output is correct |
22 |
Correct |
269 ms |
9524 KB |
Output is correct |
23 |
Correct |
283 ms |
9292 KB |
Output is correct |
24 |
Correct |
272 ms |
9296 KB |
Output is correct |
25 |
Correct |
285 ms |
9776 KB |
Output is correct |
26 |
Correct |
273 ms |
9588 KB |
Output is correct |
27 |
Correct |
285 ms |
9812 KB |
Output is correct |
28 |
Correct |
274 ms |
9392 KB |
Output is correct |
29 |
Correct |
272 ms |
9048 KB |
Output is correct |
30 |
Correct |
271 ms |
9128 KB |
Output is correct |
31 |
Correct |
262 ms |
9016 KB |
Output is correct |
32 |
Correct |
268 ms |
9256 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
50 ms |
3156 KB |
Output is correct |
8 |
Correct |
44 ms |
3156 KB |
Output is correct |
9 |
Correct |
45 ms |
3156 KB |
Output is correct |
10 |
Correct |
48 ms |
3164 KB |
Output is correct |
11 |
Correct |
45 ms |
3164 KB |
Output is correct |
12 |
Correct |
46 ms |
3220 KB |
Output is correct |
13 |
Correct |
47 ms |
3204 KB |
Output is correct |
14 |
Correct |
45 ms |
3160 KB |
Output is correct |
15 |
Correct |
45 ms |
3180 KB |
Output is correct |
16 |
Correct |
44 ms |
3160 KB |
Output is correct |
17 |
Correct |
44 ms |
3180 KB |
Output is correct |
18 |
Correct |
46 ms |
3164 KB |
Output is correct |
19 |
Correct |
46 ms |
3160 KB |
Output is correct |
20 |
Correct |
290 ms |
9252 KB |
Output is correct |
21 |
Correct |
267 ms |
9140 KB |
Output is correct |
22 |
Correct |
277 ms |
9300 KB |
Output is correct |
23 |
Correct |
265 ms |
9044 KB |
Output is correct |
24 |
Correct |
275 ms |
9296 KB |
Output is correct |
25 |
Correct |
273 ms |
9300 KB |
Output is correct |
26 |
Correct |
268 ms |
9136 KB |
Output is correct |
27 |
Correct |
274 ms |
9384 KB |
Output is correct |
28 |
Correct |
270 ms |
9296 KB |
Output is correct |
29 |
Correct |
269 ms |
9524 KB |
Output is correct |
30 |
Correct |
283 ms |
9292 KB |
Output is correct |
31 |
Correct |
272 ms |
9296 KB |
Output is correct |
32 |
Correct |
285 ms |
9776 KB |
Output is correct |
33 |
Correct |
273 ms |
9588 KB |
Output is correct |
34 |
Correct |
285 ms |
9812 KB |
Output is correct |
35 |
Correct |
274 ms |
9392 KB |
Output is correct |
36 |
Correct |
272 ms |
9048 KB |
Output is correct |
37 |
Correct |
271 ms |
9128 KB |
Output is correct |
38 |
Correct |
262 ms |
9016 KB |
Output is correct |
39 |
Correct |
268 ms |
9256 KB |
Output is correct |
40 |
Correct |
44 ms |
3160 KB |
Output is correct |
41 |
Correct |
43 ms |
3164 KB |
Output is correct |
42 |
Correct |
44 ms |
3164 KB |
Output is correct |
43 |
Correct |
46 ms |
3176 KB |
Output is correct |
44 |
Correct |
46 ms |
3164 KB |
Output is correct |
45 |
Correct |
63 ms |
3212 KB |
Output is correct |
46 |
Correct |
266 ms |
9128 KB |
Output is correct |
47 |
Correct |
265 ms |
9048 KB |
Output is correct |
48 |
Correct |
287 ms |
9416 KB |
Output is correct |
49 |
Correct |
269 ms |
9040 KB |
Output is correct |
50 |
Correct |
293 ms |
9552 KB |
Output is correct |
51 |
Correct |
272 ms |
9384 KB |
Output is correct |
52 |
Correct |
268 ms |
9272 KB |
Output is correct |
53 |
Correct |
274 ms |
9340 KB |
Output is correct |
54 |
Correct |
272 ms |
9360 KB |
Output is correct |
55 |
Correct |
289 ms |
9508 KB |
Output is correct |
56 |
Correct |
271 ms |
9300 KB |
Output is correct |
57 |
Correct |
286 ms |
9252 KB |
Output is correct |
58 |
Correct |
282 ms |
9556 KB |
Output is correct |
59 |
Correct |
276 ms |
9392 KB |
Output is correct |
60 |
Correct |
295 ms |
9556 KB |
Output is correct |
61 |
Correct |
272 ms |
9300 KB |
Output is correct |
62 |
Correct |
265 ms |
9124 KB |
Output is correct |
63 |
Correct |
283 ms |
9172 KB |
Output is correct |
64 |
Correct |
265 ms |
9040 KB |
Output is correct |
65 |
Correct |
288 ms |
9128 KB |
Output is correct |