#include <bits/stdc++.h>
using namespace std;
#define DEBUG(x) //x
#define A(x) DEBUG(assert(x))
#define PRINT(x) DEBUG(cerr << x)
#define PV(x) DEBUG(cerr << #x << " = " << x << '\n')
#define PV2(x) DEBUG(cerr << #x << " = " << x.first << ',' << x.second << '\n')
#define PAR(x) DEBUG(PRINT(#x << " = { "); for (auto y : x) PRINT(y << ' '); PRINT("}\n");)
#define PAR2(x) DEBUG(PRINT(#x << " = { "); for (auto [y, z] : x) PRINT(y << ',' << z << " "); PRINT("}\n");)
#define PAR2D(x) DEBUG(PRINT(#x << ":\n"); for (auto arr : x) {PAR(arr);} PRINT('\n'));
using i64 = long long;
constexpr int INF = 1000000007; //998244353;
int k, n, m, q;
vector<vector<pair<int, int>>> edges;
int main() {
ios::sync_with_stdio(0); cin.tie(0);
cin >> k >> n >> m >> q;
edges.resize(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 |
722 ms |
4388 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
320 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
340 KB |
Output is correct |
7 |
Correct |
2 ms |
340 KB |
Output is correct |
8 |
Correct |
691 ms |
4196 KB |
Output is correct |
9 |
Correct |
692 ms |
4080 KB |
Output is correct |
10 |
Correct |
164 ms |
1808 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1438 ms |
4912 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
320 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
320 KB |
Output is correct |
7 |
Correct |
20 ms |
468 KB |
Output is correct |
8 |
Correct |
20 ms |
508 KB |
Output is correct |
9 |
Correct |
1100 ms |
4156 KB |
Output is correct |
10 |
Correct |
2151 ms |
6476 KB |
Output is correct |
11 |
Correct |
1464 ms |
4976 KB |
Output is correct |
12 |
Correct |
1801 ms |
4468 KB |
Output is correct |
13 |
Correct |
544 ms |
6272 KB |
Output is correct |
14 |
Correct |
390 ms |
4272 KB |
Output is correct |
15 |
Correct |
408 ms |
3660 KB |
Output is correct |
16 |
Correct |
470 ms |
3664 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 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 |
324 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 |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
24 ms |
4052 KB |
Output is correct |
11 |
Correct |
31 ms |
4684 KB |
Output is correct |
12 |
Correct |
46 ms |
6232 KB |
Output is correct |
13 |
Correct |
50 ms |
6844 KB |
Output is correct |
14 |
Correct |
43 ms |
5572 KB |
Output is correct |
15 |
Correct |
32 ms |
3532 KB |
Output is correct |
16 |
Correct |
25 ms |
3612 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 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 |
324 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 |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
24 ms |
4052 KB |
Output is correct |
11 |
Correct |
31 ms |
4684 KB |
Output is correct |
12 |
Correct |
46 ms |
6232 KB |
Output is correct |
13 |
Correct |
50 ms |
6844 KB |
Output is correct |
14 |
Correct |
43 ms |
5572 KB |
Output is correct |
15 |
Correct |
32 ms |
3532 KB |
Output is correct |
16 |
Correct |
25 ms |
3612 KB |
Output is correct |
17 |
Correct |
363 ms |
4848 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 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 |
484 KB |
Output is correct |
27 |
Correct |
221 ms |
4104 KB |
Output is correct |
28 |
Correct |
443 ms |
6396 KB |
Output is correct |
29 |
Correct |
522 ms |
6896 KB |
Output is correct |
30 |
Correct |
442 ms |
5616 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
722 ms |
4388 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
320 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
340 KB |
Output is correct |
7 |
Correct |
2 ms |
340 KB |
Output is correct |
8 |
Correct |
691 ms |
4196 KB |
Output is correct |
9 |
Correct |
692 ms |
4080 KB |
Output is correct |
10 |
Correct |
164 ms |
1808 KB |
Output is correct |
11 |
Correct |
1438 ms |
4912 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
320 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
320 KB |
Output is correct |
17 |
Correct |
20 ms |
468 KB |
Output is correct |
18 |
Correct |
20 ms |
508 KB |
Output is correct |
19 |
Correct |
1100 ms |
4156 KB |
Output is correct |
20 |
Correct |
2151 ms |
6476 KB |
Output is correct |
21 |
Correct |
1464 ms |
4976 KB |
Output is correct |
22 |
Correct |
1801 ms |
4468 KB |
Output is correct |
23 |
Correct |
544 ms |
6272 KB |
Output is correct |
24 |
Correct |
390 ms |
4272 KB |
Output is correct |
25 |
Correct |
408 ms |
3660 KB |
Output is correct |
26 |
Correct |
470 ms |
3664 KB |
Output is correct |
27 |
Correct |
1 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 |
324 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 |
468 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
24 ms |
4052 KB |
Output is correct |
37 |
Correct |
31 ms |
4684 KB |
Output is correct |
38 |
Correct |
46 ms |
6232 KB |
Output is correct |
39 |
Correct |
50 ms |
6844 KB |
Output is correct |
40 |
Correct |
43 ms |
5572 KB |
Output is correct |
41 |
Correct |
32 ms |
3532 KB |
Output is correct |
42 |
Correct |
25 ms |
3612 KB |
Output is correct |
43 |
Correct |
363 ms |
4848 KB |
Output is correct |
44 |
Correct |
1 ms |
212 KB |
Output is correct |
45 |
Correct |
0 ms |
212 KB |
Output is correct |
46 |
Correct |
0 ms |
212 KB |
Output is correct |
47 |
Correct |
0 ms |
212 KB |
Output is correct |
48 |
Correct |
1 ms |
212 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 |
484 KB |
Output is correct |
53 |
Correct |
221 ms |
4104 KB |
Output is correct |
54 |
Correct |
443 ms |
6396 KB |
Output is correct |
55 |
Correct |
522 ms |
6896 KB |
Output is correct |
56 |
Correct |
442 ms |
5616 KB |
Output is correct |
57 |
Correct |
1705 ms |
7792 KB |
Output is correct |
58 |
Correct |
746 ms |
4200 KB |
Output is correct |
59 |
Correct |
1116 ms |
5044 KB |
Output is correct |