#include <bits/stdc++.h>
using namespace std;
constexpr int INF = 1000000007; //998244353;
int main() {
ios::sync_with_stdio(0); cin.tie(0);
int k, n, m, q;
cin >> k >> n >> m >> q;
vector<vector<pair<int, int>>> edges(n);
for (int i = 0; i < m; ++i) {
int a, b, w;
cin >> a >> b >> w;
edges[a].push_back({b, w});
}
vector<int> best(n, INF);
while (q--) {
int a, b;
cin >> a >> b;
fill(best.begin() + a, best.begin() + b + 1, INF);
best[a] = 0;
for (int i = a; i < b; ++i) {
for (auto [next, wt] : edges[i]) {
best[next] = min(best[next], best[i] + wt);
}
}
if (best[b] == INF) cout << -1 << '\n';
else cout << best[b] << '\n';
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
682 ms |
3276 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
2 ms |
340 KB |
Output is correct |
6 |
Correct |
2 ms |
340 KB |
Output is correct |
7 |
Correct |
2 ms |
340 KB |
Output is correct |
8 |
Correct |
666 ms |
3276 KB |
Output is correct |
9 |
Correct |
668 ms |
3204 KB |
Output is correct |
10 |
Correct |
201 ms |
1740 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1432 ms |
3304 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
20 ms |
408 KB |
Output is correct |
8 |
Correct |
21 ms |
456 KB |
Output is correct |
9 |
Correct |
1018 ms |
3376 KB |
Output is correct |
10 |
Correct |
2213 ms |
4480 KB |
Output is correct |
11 |
Correct |
1519 ms |
3312 KB |
Output is correct |
12 |
Correct |
1720 ms |
3168 KB |
Output is correct |
13 |
Correct |
542 ms |
3892 KB |
Output is correct |
14 |
Correct |
374 ms |
2940 KB |
Output is correct |
15 |
Correct |
436 ms |
2452 KB |
Output is correct |
16 |
Correct |
408 ms |
2456 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
2 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
18 ms |
3156 KB |
Output is correct |
11 |
Correct |
32 ms |
3260 KB |
Output is correct |
12 |
Correct |
43 ms |
4160 KB |
Output is correct |
13 |
Correct |
46 ms |
4304 KB |
Output is correct |
14 |
Correct |
38 ms |
3764 KB |
Output is correct |
15 |
Correct |
25 ms |
2432 KB |
Output is correct |
16 |
Correct |
24 ms |
2388 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
2 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
18 ms |
3156 KB |
Output is correct |
11 |
Correct |
32 ms |
3260 KB |
Output is correct |
12 |
Correct |
43 ms |
4160 KB |
Output is correct |
13 |
Correct |
46 ms |
4304 KB |
Output is correct |
14 |
Correct |
38 ms |
3764 KB |
Output is correct |
15 |
Correct |
25 ms |
2432 KB |
Output is correct |
16 |
Correct |
24 ms |
2388 KB |
Output is correct |
17 |
Correct |
309 ms |
3268 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
256 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
256 KB |
Output is correct |
23 |
Correct |
5 ms |
340 KB |
Output is correct |
24 |
Correct |
5 ms |
340 KB |
Output is correct |
25 |
Correct |
8 ms |
436 KB |
Output is correct |
26 |
Correct |
7 ms |
340 KB |
Output is correct |
27 |
Correct |
202 ms |
3240 KB |
Output is correct |
28 |
Correct |
416 ms |
4184 KB |
Output is correct |
29 |
Correct |
497 ms |
4440 KB |
Output is correct |
30 |
Correct |
446 ms |
3768 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
682 ms |
3276 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
2 ms |
340 KB |
Output is correct |
6 |
Correct |
2 ms |
340 KB |
Output is correct |
7 |
Correct |
2 ms |
340 KB |
Output is correct |
8 |
Correct |
666 ms |
3276 KB |
Output is correct |
9 |
Correct |
668 ms |
3204 KB |
Output is correct |
10 |
Correct |
201 ms |
1740 KB |
Output is correct |
11 |
Correct |
1432 ms |
3304 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
20 ms |
408 KB |
Output is correct |
18 |
Correct |
21 ms |
456 KB |
Output is correct |
19 |
Correct |
1018 ms |
3376 KB |
Output is correct |
20 |
Correct |
2213 ms |
4480 KB |
Output is correct |
21 |
Correct |
1519 ms |
3312 KB |
Output is correct |
22 |
Correct |
1720 ms |
3168 KB |
Output is correct |
23 |
Correct |
542 ms |
3892 KB |
Output is correct |
24 |
Correct |
374 ms |
2940 KB |
Output is correct |
25 |
Correct |
436 ms |
2452 KB |
Output is correct |
26 |
Correct |
408 ms |
2456 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
1 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
2 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
18 ms |
3156 KB |
Output is correct |
37 |
Correct |
32 ms |
3260 KB |
Output is correct |
38 |
Correct |
43 ms |
4160 KB |
Output is correct |
39 |
Correct |
46 ms |
4304 KB |
Output is correct |
40 |
Correct |
38 ms |
3764 KB |
Output is correct |
41 |
Correct |
25 ms |
2432 KB |
Output is correct |
42 |
Correct |
24 ms |
2388 KB |
Output is correct |
43 |
Correct |
309 ms |
3268 KB |
Output is correct |
44 |
Correct |
1 ms |
212 KB |
Output is correct |
45 |
Correct |
1 ms |
212 KB |
Output is correct |
46 |
Correct |
0 ms |
256 KB |
Output is correct |
47 |
Correct |
0 ms |
212 KB |
Output is correct |
48 |
Correct |
1 ms |
256 KB |
Output is correct |
49 |
Correct |
5 ms |
340 KB |
Output is correct |
50 |
Correct |
5 ms |
340 KB |
Output is correct |
51 |
Correct |
8 ms |
436 KB |
Output is correct |
52 |
Correct |
7 ms |
340 KB |
Output is correct |
53 |
Correct |
202 ms |
3240 KB |
Output is correct |
54 |
Correct |
416 ms |
4184 KB |
Output is correct |
55 |
Correct |
497 ms |
4440 KB |
Output is correct |
56 |
Correct |
446 ms |
3768 KB |
Output is correct |
57 |
Correct |
1635 ms |
4432 KB |
Output is correct |
58 |
Correct |
692 ms |
3280 KB |
Output is correct |
59 |
Correct |
1010 ms |
3320 KB |
Output is correct |