#include <iostream>
using namespace std;
const int inf = 1000000000;
int n, m;
int adj[70][70];
int k, q;
int dp[70][70][70]; //[distance][town A][town B]
int main()
{
cin>>n>>m;
for(int i = 0; i < n; i++)
for(int j = 0; j < n; j++)
{
adj[i][j] = inf;
for(int d = 0; d < n; d++)
dp[d][i][j] = inf;
}
for(int i = 0; i < n; i++)
{
adj[i][i] = 0;
dp[0][i][i] = 0;
}
for(int i = 0; i < m; i++)
{
int a, b, t;
cin>>a>>b>>t;
a--;
b--;
adj[a][b] = min(adj[a][b], t);
}
cin>>k>>q;
if(k > n - 1)
k = n - 1;
for(int d = 1; d <= k; d++)
for(int a = 0; a < n; a++)
for(int b = 0; b < n; b++)
for(int x = 0; x < n; x++)
if(dp[d - 1][a][x] != inf && adj[x][b] != inf)
dp[d][a][b] = min(dp[d][a][b], dp[d - 1][a][x] + adj[x][b]);
while(q--)
{
int from, to;
cin>>from>>to;
from--;
to--;
if(dp[k][from][to] == inf)
cout<<-1<<endl;
else
cout<<dp[k][from][to]<<endl;
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
1620 KB |
Output is correct |
2 |
Correct |
10 ms |
1620 KB |
Output is correct |
3 |
Correct |
11 ms |
1620 KB |
Output is correct |
4 |
Correct |
11 ms |
1620 KB |
Output is correct |
5 |
Correct |
11 ms |
1676 KB |
Output is correct |
6 |
Correct |
13 ms |
1672 KB |
Output is correct |
7 |
Correct |
14 ms |
1660 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
7 |
Correct |
24 ms |
1672 KB |
Output is correct |
8 |
Correct |
57 ms |
1768 KB |
Output is correct |
9 |
Correct |
12 ms |
1660 KB |
Output is correct |
10 |
Correct |
42 ms |
1636 KB |
Output is correct |
11 |
Correct |
20 ms |
1620 KB |
Output is correct |
12 |
Correct |
52 ms |
1732 KB |
Output is correct |
13 |
Correct |
290 ms |
7788 KB |
Output is correct |
14 |
Correct |
296 ms |
7768 KB |
Output is correct |
15 |
Correct |
340 ms |
7772 KB |
Output is correct |
16 |
Correct |
322 ms |
7780 KB |
Output is correct |
17 |
Correct |
300 ms |
7832 KB |
Output is correct |
18 |
Correct |
301 ms |
7768 KB |
Output is correct |
19 |
Correct |
355 ms |
7780 KB |
Output is correct |
20 |
Correct |
328 ms |
7768 KB |
Output is correct |
21 |
Correct |
300 ms |
7900 KB |
Output is correct |
22 |
Correct |
314 ms |
7904 KB |
Output is correct |
23 |
Correct |
318 ms |
7912 KB |
Output is correct |
24 |
Correct |
331 ms |
7904 KB |
Output is correct |
25 |
Correct |
306 ms |
8024 KB |
Output is correct |
26 |
Correct |
316 ms |
7908 KB |
Output is correct |
27 |
Correct |
329 ms |
8076 KB |
Output is correct |
28 |
Correct |
316 ms |
7884 KB |
Output is correct |
29 |
Correct |
295 ms |
7656 KB |
Output is correct |
30 |
Correct |
297 ms |
7632 KB |
Output is correct |
31 |
Correct |
322 ms |
7732 KB |
Output is correct |
32 |
Correct |
364 ms |
7856 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
340 KB |
Output is correct |
7 |
Correct |
9 ms |
1620 KB |
Output is correct |
8 |
Correct |
10 ms |
1620 KB |
Output is correct |
9 |
Correct |
11 ms |
1620 KB |
Output is correct |
10 |
Correct |
11 ms |
1620 KB |
Output is correct |
11 |
Correct |
11 ms |
1676 KB |
Output is correct |
12 |
Correct |
13 ms |
1672 KB |
Output is correct |
13 |
Correct |
14 ms |
1660 KB |
Output is correct |
14 |
Correct |
24 ms |
1672 KB |
Output is correct |
15 |
Correct |
57 ms |
1768 KB |
Output is correct |
16 |
Correct |
12 ms |
1660 KB |
Output is correct |
17 |
Correct |
42 ms |
1636 KB |
Output is correct |
18 |
Correct |
20 ms |
1620 KB |
Output is correct |
19 |
Correct |
52 ms |
1732 KB |
Output is correct |
20 |
Correct |
290 ms |
7788 KB |
Output is correct |
21 |
Correct |
296 ms |
7768 KB |
Output is correct |
22 |
Correct |
340 ms |
7772 KB |
Output is correct |
23 |
Correct |
322 ms |
7780 KB |
Output is correct |
24 |
Correct |
300 ms |
7832 KB |
Output is correct |
25 |
Correct |
301 ms |
7768 KB |
Output is correct |
26 |
Correct |
355 ms |
7780 KB |
Output is correct |
27 |
Correct |
328 ms |
7768 KB |
Output is correct |
28 |
Correct |
300 ms |
7900 KB |
Output is correct |
29 |
Correct |
314 ms |
7904 KB |
Output is correct |
30 |
Correct |
318 ms |
7912 KB |
Output is correct |
31 |
Correct |
331 ms |
7904 KB |
Output is correct |
32 |
Correct |
306 ms |
8024 KB |
Output is correct |
33 |
Correct |
316 ms |
7908 KB |
Output is correct |
34 |
Correct |
329 ms |
8076 KB |
Output is correct |
35 |
Correct |
316 ms |
7884 KB |
Output is correct |
36 |
Correct |
295 ms |
7656 KB |
Output is correct |
37 |
Correct |
297 ms |
7632 KB |
Output is correct |
38 |
Correct |
322 ms |
7732 KB |
Output is correct |
39 |
Correct |
364 ms |
7856 KB |
Output is correct |
40 |
Correct |
21 ms |
1692 KB |
Output is correct |
41 |
Correct |
53 ms |
1672 KB |
Output is correct |
42 |
Correct |
15 ms |
1620 KB |
Output is correct |
43 |
Correct |
67 ms |
1676 KB |
Output is correct |
44 |
Correct |
23 ms |
1748 KB |
Output is correct |
45 |
Correct |
75 ms |
1720 KB |
Output is correct |
46 |
Correct |
292 ms |
7776 KB |
Output is correct |
47 |
Correct |
326 ms |
7900 KB |
Output is correct |
48 |
Correct |
332 ms |
7780 KB |
Output is correct |
49 |
Correct |
363 ms |
7756 KB |
Output is correct |
50 |
Correct |
337 ms |
7780 KB |
Output is correct |
51 |
Correct |
307 ms |
7780 KB |
Output is correct |
52 |
Correct |
297 ms |
7784 KB |
Output is correct |
53 |
Correct |
359 ms |
7768 KB |
Output is correct |
54 |
Correct |
305 ms |
7908 KB |
Output is correct |
55 |
Correct |
302 ms |
7884 KB |
Output is correct |
56 |
Correct |
359 ms |
7896 KB |
Output is correct |
57 |
Correct |
360 ms |
7896 KB |
Output is correct |
58 |
Correct |
299 ms |
7908 KB |
Output is correct |
59 |
Correct |
329 ms |
7908 KB |
Output is correct |
60 |
Correct |
352 ms |
7988 KB |
Output is correct |
61 |
Correct |
384 ms |
8116 KB |
Output is correct |
62 |
Correct |
293 ms |
7628 KB |
Output is correct |
63 |
Correct |
316 ms |
7732 KB |
Output is correct |
64 |
Correct |
317 ms |
7736 KB |
Output is correct |
65 |
Correct |
364 ms |
7756 KB |
Output is correct |