#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, b) for (int i = a; i < (b); ++i)
#define per(i, a, b) for (int i = b - 1; i >= (a); --i)
#define trav(a, x) for (auto &a : x)
#define all(x) x.begin(), x.end()
#define sz(x) x.size()
#define pb push_back
#define umap unordered_map
#define uset unordered_set
typedef pair<int, int> ii;
typedef pair<int, ii> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<vi> vvi;
typedef long long ll;
const int INF = 1000000007;
int main() {
vii graph[50001];
int n, memo[50001], k, m, o;
scanf("%d %d %d %d", &k, &n, &m, &o);
rep(i, 0, m) {
int u, v, w;
scanf("%d %d %d", &u, &v, &w);
graph[u].emplace_back(v, w);
}
int ans[10000];
iii orders[10000];
rep(i, 0, o) {
orders[i].second.second = i;
scanf("%d %d", &orders[i].first, &orders[i].second.first);
orders[i].second.first *= -1;
}
sort(orders, orders + o);
rep(l, 0, o) {
int a = orders[l].first, b = -orders[l].second.first;
if (!l || a != orders[l - 1].first) {
fill(memo + a, memo + b + 1, INF);
memo[a] = 0;
rep(i, a, b) {
if (INF == memo[i]) continue;
trav(j, graph[i]) {
int v, w;
tie(v, w) = j;
memo[v] = min(memo[v], memo[i] + w);
}
}
}
ans[orders[l].second.second] = memo[b] == INF ? -1 : memo[b];
}
rep(i,0,o)printf("%d\n",ans[i]);
return 0;
}
Compilation message
toll.cpp: In function 'int main()':
toll.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
28 | scanf("%d %d %d %d", &k, &n, &m, &o);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:32:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
32 | scanf("%d %d %d", &u, &v, &w);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:41:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
41 | scanf("%d %d", &orders[i].first, &orders[i].second.first);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2965 ms |
4280 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
2 ms |
1484 KB |
Output is correct |
4 |
Correct |
2 ms |
1484 KB |
Output is correct |
5 |
Correct |
2 ms |
1612 KB |
Output is correct |
6 |
Correct |
2 ms |
1616 KB |
Output is correct |
7 |
Correct |
3 ms |
1612 KB |
Output is correct |
8 |
Correct |
329 ms |
4272 KB |
Output is correct |
9 |
Correct |
246 ms |
4168 KB |
Output is correct |
10 |
Correct |
224 ms |
1924 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
44 ms |
4984 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
1 ms |
1484 KB |
Output is correct |
4 |
Correct |
1 ms |
1484 KB |
Output is correct |
5 |
Correct |
1 ms |
1484 KB |
Output is correct |
6 |
Correct |
1 ms |
1484 KB |
Output is correct |
7 |
Correct |
6 ms |
1740 KB |
Output is correct |
8 |
Correct |
8 ms |
1740 KB |
Output is correct |
9 |
Correct |
33 ms |
4200 KB |
Output is correct |
10 |
Correct |
67 ms |
6456 KB |
Output is correct |
11 |
Correct |
46 ms |
5060 KB |
Output is correct |
12 |
Correct |
38 ms |
4548 KB |
Output is correct |
13 |
Correct |
63 ms |
6804 KB |
Output is correct |
14 |
Correct |
40 ms |
4788 KB |
Output is correct |
15 |
Correct |
35 ms |
4220 KB |
Output is correct |
16 |
Correct |
33 ms |
4184 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1484 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
1 ms |
1484 KB |
Output is correct |
4 |
Correct |
1 ms |
1596 KB |
Output is correct |
5 |
Correct |
1 ms |
1612 KB |
Output is correct |
6 |
Correct |
2 ms |
1612 KB |
Output is correct |
7 |
Correct |
2 ms |
1612 KB |
Output is correct |
8 |
Correct |
4 ms |
1740 KB |
Output is correct |
9 |
Correct |
3 ms |
1612 KB |
Output is correct |
10 |
Correct |
28 ms |
4108 KB |
Output is correct |
11 |
Correct |
74 ms |
4804 KB |
Output is correct |
12 |
Correct |
104 ms |
6304 KB |
Output is correct |
13 |
Correct |
120 ms |
7000 KB |
Output is correct |
14 |
Correct |
93 ms |
5572 KB |
Output is correct |
15 |
Correct |
55 ms |
4108 KB |
Output is correct |
16 |
Correct |
52 ms |
4148 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1484 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
1 ms |
1484 KB |
Output is correct |
4 |
Correct |
1 ms |
1596 KB |
Output is correct |
5 |
Correct |
1 ms |
1612 KB |
Output is correct |
6 |
Correct |
2 ms |
1612 KB |
Output is correct |
7 |
Correct |
2 ms |
1612 KB |
Output is correct |
8 |
Correct |
4 ms |
1740 KB |
Output is correct |
9 |
Correct |
3 ms |
1612 KB |
Output is correct |
10 |
Correct |
28 ms |
4108 KB |
Output is correct |
11 |
Correct |
74 ms |
4804 KB |
Output is correct |
12 |
Correct |
104 ms |
6304 KB |
Output is correct |
13 |
Correct |
120 ms |
7000 KB |
Output is correct |
14 |
Correct |
93 ms |
5572 KB |
Output is correct |
15 |
Correct |
55 ms |
4108 KB |
Output is correct |
16 |
Correct |
52 ms |
4148 KB |
Output is correct |
17 |
Correct |
1108 ms |
4896 KB |
Output is correct |
18 |
Correct |
1 ms |
1488 KB |
Output is correct |
19 |
Correct |
1 ms |
1484 KB |
Output is correct |
20 |
Correct |
1 ms |
1484 KB |
Output is correct |
21 |
Correct |
1 ms |
1484 KB |
Output is correct |
22 |
Correct |
1 ms |
1484 KB |
Output is correct |
23 |
Correct |
4 ms |
1612 KB |
Output is correct |
24 |
Correct |
9 ms |
1612 KB |
Output is correct |
25 |
Correct |
11 ms |
1756 KB |
Output is correct |
26 |
Correct |
10 ms |
1740 KB |
Output is correct |
27 |
Correct |
123 ms |
4164 KB |
Output is correct |
28 |
Correct |
1324 ms |
6460 KB |
Output is correct |
29 |
Correct |
1429 ms |
7020 KB |
Output is correct |
30 |
Correct |
855 ms |
5704 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2965 ms |
4280 KB |
Output is correct |
2 |
Correct |
1 ms |
1484 KB |
Output is correct |
3 |
Correct |
2 ms |
1484 KB |
Output is correct |
4 |
Correct |
2 ms |
1484 KB |
Output is correct |
5 |
Correct |
2 ms |
1612 KB |
Output is correct |
6 |
Correct |
2 ms |
1616 KB |
Output is correct |
7 |
Correct |
3 ms |
1612 KB |
Output is correct |
8 |
Correct |
329 ms |
4272 KB |
Output is correct |
9 |
Correct |
246 ms |
4168 KB |
Output is correct |
10 |
Correct |
224 ms |
1924 KB |
Output is correct |
11 |
Correct |
44 ms |
4984 KB |
Output is correct |
12 |
Correct |
1 ms |
1484 KB |
Output is correct |
13 |
Correct |
1 ms |
1484 KB |
Output is correct |
14 |
Correct |
1 ms |
1484 KB |
Output is correct |
15 |
Correct |
1 ms |
1484 KB |
Output is correct |
16 |
Correct |
1 ms |
1484 KB |
Output is correct |
17 |
Correct |
6 ms |
1740 KB |
Output is correct |
18 |
Correct |
8 ms |
1740 KB |
Output is correct |
19 |
Correct |
33 ms |
4200 KB |
Output is correct |
20 |
Correct |
67 ms |
6456 KB |
Output is correct |
21 |
Correct |
46 ms |
5060 KB |
Output is correct |
22 |
Correct |
38 ms |
4548 KB |
Output is correct |
23 |
Correct |
63 ms |
6804 KB |
Output is correct |
24 |
Correct |
40 ms |
4788 KB |
Output is correct |
25 |
Correct |
35 ms |
4220 KB |
Output is correct |
26 |
Correct |
33 ms |
4184 KB |
Output is correct |
27 |
Correct |
1 ms |
1484 KB |
Output is correct |
28 |
Correct |
1 ms |
1484 KB |
Output is correct |
29 |
Correct |
1 ms |
1484 KB |
Output is correct |
30 |
Correct |
1 ms |
1596 KB |
Output is correct |
31 |
Correct |
1 ms |
1612 KB |
Output is correct |
32 |
Correct |
2 ms |
1612 KB |
Output is correct |
33 |
Correct |
2 ms |
1612 KB |
Output is correct |
34 |
Correct |
4 ms |
1740 KB |
Output is correct |
35 |
Correct |
3 ms |
1612 KB |
Output is correct |
36 |
Correct |
28 ms |
4108 KB |
Output is correct |
37 |
Correct |
74 ms |
4804 KB |
Output is correct |
38 |
Correct |
104 ms |
6304 KB |
Output is correct |
39 |
Correct |
120 ms |
7000 KB |
Output is correct |
40 |
Correct |
93 ms |
5572 KB |
Output is correct |
41 |
Correct |
55 ms |
4108 KB |
Output is correct |
42 |
Correct |
52 ms |
4148 KB |
Output is correct |
43 |
Correct |
1108 ms |
4896 KB |
Output is correct |
44 |
Correct |
1 ms |
1488 KB |
Output is correct |
45 |
Correct |
1 ms |
1484 KB |
Output is correct |
46 |
Correct |
1 ms |
1484 KB |
Output is correct |
47 |
Correct |
1 ms |
1484 KB |
Output is correct |
48 |
Correct |
1 ms |
1484 KB |
Output is correct |
49 |
Correct |
4 ms |
1612 KB |
Output is correct |
50 |
Correct |
9 ms |
1612 KB |
Output is correct |
51 |
Correct |
11 ms |
1756 KB |
Output is correct |
52 |
Correct |
10 ms |
1740 KB |
Output is correct |
53 |
Correct |
123 ms |
4164 KB |
Output is correct |
54 |
Correct |
1324 ms |
6460 KB |
Output is correct |
55 |
Correct |
1429 ms |
7020 KB |
Output is correct |
56 |
Correct |
855 ms |
5704 KB |
Output is correct |
57 |
Execution timed out |
3068 ms |
7736 KB |
Time limit exceeded |
58 |
Halted |
0 ms |
0 KB |
- |