// `Be name khoda` //
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define all(x) x.begin(), x.end()
#define fi first
#define se second
const int maxn5 = 2e5 + 10;
const int inf = 1e9;
int dis[maxn5], prec[maxn5];
vector <pair<int, int>> jda[maxn5], adj[maxn5];
int main(){
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
int k, n, m, q; cin >> k >> n >> m >> q;
for(int i = 0; i < m; i++){
int a, b, t; cin >> a >> b >> t;
jda[b].pb({a, t});
adj[a].pb({b, t});
}
fill(prec, prec + n + 5, inf);
prec[0] = 0;
for(int i = 0; i < n; i++) for(auto [u, t] : adj[i])
prec[u] = min(prec[u], prec[i] + t);
for(int i = 0; i < n; i++) if(prec[i] == inf)
prec[i] = -1;
for(int i = 0; i < q; i++){
int a, b; cin >> a >> b;
if(a == 0){
cout << prec[b] << '\n';
continue;
}
fill(dis, dis + n + 4, inf);
dis[b] = 0;
for(int i = b; i > a; i--){
for(auto [u, t] : jda[i])
dis[u] = min(dis[u], dis[i] + t);
}
if(dis[a] == inf)
dis[a] = -1;
cout << dis[a] << '\n';
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3024 ms |
13544 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
63 ms |
13028 KB |
Output is correct |
2 |
Correct |
6 ms |
9732 KB |
Output is correct |
3 |
Correct |
6 ms |
9684 KB |
Output is correct |
4 |
Correct |
6 ms |
9684 KB |
Output is correct |
5 |
Correct |
6 ms |
9728 KB |
Output is correct |
6 |
Correct |
5 ms |
9684 KB |
Output is correct |
7 |
Correct |
9 ms |
9896 KB |
Output is correct |
8 |
Correct |
8 ms |
9868 KB |
Output is correct |
9 |
Correct |
32 ms |
13856 KB |
Output is correct |
10 |
Correct |
89 ms |
17128 KB |
Output is correct |
11 |
Correct |
57 ms |
14820 KB |
Output is correct |
12 |
Correct |
39 ms |
14104 KB |
Output is correct |
13 |
Correct |
83 ms |
17612 KB |
Output is correct |
14 |
Correct |
51 ms |
14564 KB |
Output is correct |
15 |
Correct |
43 ms |
13652 KB |
Output is correct |
16 |
Correct |
46 ms |
13660 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
9684 KB |
Output is correct |
2 |
Correct |
5 ms |
9684 KB |
Output is correct |
3 |
Correct |
5 ms |
9684 KB |
Output is correct |
4 |
Correct |
5 ms |
9684 KB |
Output is correct |
5 |
Correct |
5 ms |
9620 KB |
Output is correct |
6 |
Correct |
6 ms |
9684 KB |
Output is correct |
7 |
Correct |
6 ms |
9684 KB |
Output is correct |
8 |
Correct |
8 ms |
9940 KB |
Output is correct |
9 |
Correct |
7 ms |
9812 KB |
Output is correct |
10 |
Correct |
76 ms |
13232 KB |
Output is correct |
11 |
Correct |
96 ms |
13184 KB |
Output is correct |
12 |
Correct |
110 ms |
15148 KB |
Output is correct |
13 |
Correct |
163 ms |
15436 KB |
Output is correct |
14 |
Correct |
107 ms |
14284 KB |
Output is correct |
15 |
Correct |
66 ms |
12492 KB |
Output is correct |
16 |
Correct |
51 ms |
12552 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
9684 KB |
Output is correct |
2 |
Correct |
5 ms |
9684 KB |
Output is correct |
3 |
Correct |
5 ms |
9684 KB |
Output is correct |
4 |
Correct |
5 ms |
9684 KB |
Output is correct |
5 |
Correct |
5 ms |
9620 KB |
Output is correct |
6 |
Correct |
6 ms |
9684 KB |
Output is correct |
7 |
Correct |
6 ms |
9684 KB |
Output is correct |
8 |
Correct |
8 ms |
9940 KB |
Output is correct |
9 |
Correct |
7 ms |
9812 KB |
Output is correct |
10 |
Correct |
76 ms |
13232 KB |
Output is correct |
11 |
Correct |
96 ms |
13184 KB |
Output is correct |
12 |
Correct |
110 ms |
15148 KB |
Output is correct |
13 |
Correct |
163 ms |
15436 KB |
Output is correct |
14 |
Correct |
107 ms |
14284 KB |
Output is correct |
15 |
Correct |
66 ms |
12492 KB |
Output is correct |
16 |
Correct |
51 ms |
12552 KB |
Output is correct |
17 |
Correct |
1182 ms |
13252 KB |
Output is correct |
18 |
Correct |
6 ms |
9684 KB |
Output is correct |
19 |
Correct |
6 ms |
9684 KB |
Output is correct |
20 |
Correct |
6 ms |
9712 KB |
Output is correct |
21 |
Correct |
7 ms |
9684 KB |
Output is correct |
22 |
Correct |
5 ms |
9684 KB |
Output is correct |
23 |
Correct |
17 ms |
9812 KB |
Output is correct |
24 |
Correct |
17 ms |
9812 KB |
Output is correct |
25 |
Correct |
25 ms |
9812 KB |
Output is correct |
26 |
Correct |
23 ms |
9856 KB |
Output is correct |
27 |
Correct |
1092 ms |
13364 KB |
Output is correct |
28 |
Correct |
1658 ms |
15056 KB |
Output is correct |
29 |
Correct |
2090 ms |
15764 KB |
Output is correct |
30 |
Correct |
1373 ms |
14420 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3024 ms |
13544 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |