#include <bits/stdc++.h>
using namespace std;
using vi = vector<int>;
using ii = pair<int, int>;
using vvii = vector<vector<ii>>;
#define INF 1000000000
int main() {
int K, n, m, o; cin >> K >> n >> m >> o;
vvii rev(n);
for (int i = 0; i < m; ++i) {
int a, b, t; cin >> a >> b >> t;
rev[b].emplace_back(t, a);
}
vi dist(n, INF);
dist[0] = 0;
for (int u = 1; u < n; ++u) {
for (ii e : rev[u]) {
dist[u] = min(dist[u], dist[e.second] + e.first);
}
}
for (int i = 0; i < o; ++i) {
int a, b; cin >> a >> b;
assert(a == 0);
int ans = dist[b];
cout << (ans == INF ? -1 : ans) << endl;
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
74 ms |
6392 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
162 ms |
3344 KB |
Output is correct |
2 |
Correct |
5 ms |
256 KB |
Output is correct |
3 |
Correct |
5 ms |
256 KB |
Output is correct |
4 |
Correct |
5 ms |
256 KB |
Output is correct |
5 |
Correct |
5 ms |
256 KB |
Output is correct |
6 |
Correct |
5 ms |
256 KB |
Output is correct |
7 |
Correct |
31 ms |
512 KB |
Output is correct |
8 |
Correct |
32 ms |
512 KB |
Output is correct |
9 |
Correct |
99 ms |
4148 KB |
Output is correct |
10 |
Correct |
209 ms |
4740 KB |
Output is correct |
11 |
Correct |
170 ms |
3936 KB |
Output is correct |
12 |
Correct |
135 ms |
3808 KB |
Output is correct |
13 |
Correct |
202 ms |
4432 KB |
Output is correct |
14 |
Correct |
130 ms |
3424 KB |
Output is correct |
15 |
Correct |
115 ms |
3064 KB |
Output is correct |
16 |
Correct |
115 ms |
3052 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
5 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
5 ms |
512 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
74 ms |
6392 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |