#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(0);cout.tie(0);
int n,k,m,q;
cin>>k>>n>>m>>q;
vector <pair <int,int> > g[n];
while(m--){
int u,v,x;
cin>>u>>v>>x;
g[u].pb({v,x});
}
while(q--){
int u,v;
cin>>u>>v;
vector <int> dp(n,1e18);
dp[u]=0;
for(int i=u;i<v;i++){
for(auto x : g[i]){
dp[x.ff]=min(dp[x.ff],dp[i]+x.ss);
}
}
if(dp[v]==1e18)dp[v]=-1;
cout<<dp[v]<<"\n";
}
}
/*
5 14 5 5
0 5 9
5 12 10
0 7 7
7 12 8
4 7 10
0 12
0 5
0 7
7 12
0 13
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
778 ms |
4540 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
600 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
2 ms |
348 KB |
Output is correct |
6 |
Correct |
2 ms |
348 KB |
Output is correct |
7 |
Correct |
2 ms |
344 KB |
Output is correct |
8 |
Correct |
757 ms |
4480 KB |
Output is correct |
9 |
Correct |
753 ms |
4308 KB |
Output is correct |
10 |
Correct |
341 ms |
2112 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1571 ms |
6100 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
388 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
29 ms |
600 KB |
Output is correct |
8 |
Correct |
21 ms |
652 KB |
Output is correct |
9 |
Correct |
1096 ms |
4444 KB |
Output is correct |
10 |
Correct |
2418 ms |
8240 KB |
Output is correct |
11 |
Correct |
1806 ms |
6320 KB |
Output is correct |
12 |
Correct |
1827 ms |
5328 KB |
Output is correct |
13 |
Correct |
580 ms |
8296 KB |
Output is correct |
14 |
Correct |
411 ms |
5220 KB |
Output is correct |
15 |
Correct |
411 ms |
4456 KB |
Output is correct |
16 |
Correct |
404 ms |
4460 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
2 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
600 KB |
Output is correct |
10 |
Correct |
20 ms |
4308 KB |
Output is correct |
11 |
Correct |
37 ms |
5980 KB |
Output is correct |
12 |
Correct |
49 ms |
8028 KB |
Output is correct |
13 |
Correct |
54 ms |
8788 KB |
Output is correct |
14 |
Correct |
41 ms |
6992 KB |
Output is correct |
15 |
Correct |
26 ms |
4456 KB |
Output is correct |
16 |
Correct |
26 ms |
4464 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
2 ms |
604 KB |
Output is correct |
9 |
Correct |
1 ms |
600 KB |
Output is correct |
10 |
Correct |
20 ms |
4308 KB |
Output is correct |
11 |
Correct |
37 ms |
5980 KB |
Output is correct |
12 |
Correct |
49 ms |
8028 KB |
Output is correct |
13 |
Correct |
54 ms |
8788 KB |
Output is correct |
14 |
Correct |
41 ms |
6992 KB |
Output is correct |
15 |
Correct |
26 ms |
4456 KB |
Output is correct |
16 |
Correct |
26 ms |
4464 KB |
Output is correct |
17 |
Correct |
364 ms |
6092 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
5 ms |
552 KB |
Output is correct |
24 |
Correct |
6 ms |
604 KB |
Output is correct |
25 |
Correct |
9 ms |
600 KB |
Output is correct |
26 |
Correct |
8 ms |
604 KB |
Output is correct |
27 |
Correct |
238 ms |
4308 KB |
Output is correct |
28 |
Correct |
461 ms |
8152 KB |
Output is correct |
29 |
Correct |
484 ms |
8800 KB |
Output is correct |
30 |
Correct |
448 ms |
7000 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
778 ms |
4540 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
600 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
2 ms |
348 KB |
Output is correct |
6 |
Correct |
2 ms |
348 KB |
Output is correct |
7 |
Correct |
2 ms |
344 KB |
Output is correct |
8 |
Correct |
757 ms |
4480 KB |
Output is correct |
9 |
Correct |
753 ms |
4308 KB |
Output is correct |
10 |
Correct |
341 ms |
2112 KB |
Output is correct |
11 |
Correct |
1571 ms |
6100 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
388 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
344 KB |
Output is correct |
16 |
Correct |
1 ms |
348 KB |
Output is correct |
17 |
Correct |
29 ms |
600 KB |
Output is correct |
18 |
Correct |
21 ms |
652 KB |
Output is correct |
19 |
Correct |
1096 ms |
4444 KB |
Output is correct |
20 |
Correct |
2418 ms |
8240 KB |
Output is correct |
21 |
Correct |
1806 ms |
6320 KB |
Output is correct |
22 |
Correct |
1827 ms |
5328 KB |
Output is correct |
23 |
Correct |
580 ms |
8296 KB |
Output is correct |
24 |
Correct |
411 ms |
5220 KB |
Output is correct |
25 |
Correct |
411 ms |
4456 KB |
Output is correct |
26 |
Correct |
404 ms |
4460 KB |
Output is correct |
27 |
Correct |
0 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
604 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
1 ms |
348 KB |
Output is correct |
33 |
Correct |
1 ms |
468 KB |
Output is correct |
34 |
Correct |
2 ms |
604 KB |
Output is correct |
35 |
Correct |
1 ms |
600 KB |
Output is correct |
36 |
Correct |
20 ms |
4308 KB |
Output is correct |
37 |
Correct |
37 ms |
5980 KB |
Output is correct |
38 |
Correct |
49 ms |
8028 KB |
Output is correct |
39 |
Correct |
54 ms |
8788 KB |
Output is correct |
40 |
Correct |
41 ms |
6992 KB |
Output is correct |
41 |
Correct |
26 ms |
4456 KB |
Output is correct |
42 |
Correct |
26 ms |
4464 KB |
Output is correct |
43 |
Correct |
364 ms |
6092 KB |
Output is correct |
44 |
Correct |
0 ms |
344 KB |
Output is correct |
45 |
Correct |
0 ms |
348 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
5 ms |
552 KB |
Output is correct |
50 |
Correct |
6 ms |
604 KB |
Output is correct |
51 |
Correct |
9 ms |
600 KB |
Output is correct |
52 |
Correct |
8 ms |
604 KB |
Output is correct |
53 |
Correct |
238 ms |
4308 KB |
Output is correct |
54 |
Correct |
461 ms |
8152 KB |
Output is correct |
55 |
Correct |
484 ms |
8800 KB |
Output is correct |
56 |
Correct |
448 ms |
7000 KB |
Output is correct |
57 |
Correct |
1830 ms |
9696 KB |
Output is correct |
58 |
Correct |
725 ms |
4440 KB |
Output is correct |
59 |
Correct |
1170 ms |
6332 KB |
Output is correct |