// Only GOD
// Believe in yourself!
// -o Sango zadam be shishe
// -o Comeback bezan hamishe!
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
#define pb push_back
#define F first
#define S second
#define bit(x, y) (x >> y)&1
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define kill(x) return cout << x << '\n', void()
#define KILL(x) return cout << x << '\n', 0
#define mid ((l+r)>>1)
#define lid (id << 1)
#define rid (lid | 1)
const int N = 5e4+10;
const int INF = 1e9+10;
int n, m, k, o;
vector<pii> query[N];
vector<pii> G[N];
int ans[N], dis[N];
set<int> s;
void dij(int v){
priority_queue<pii> q;
for(int i=0; i <= n; i++)
dis[i] = INF;
dis[v] = 0;
q.push({0, v});
while(!q.empty()){
int a=q.top().S;
q.pop();
for(auto x : G[a]){
if(dis[a] + x.S < dis[x.F]){
dis[x.F] = dis[a] + x.S;
q.push({-dis[x.F], x.F});
}
}
}
}
int32_t main(){
ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
cin >> k >> n >> m >> o;
for(int i = 0; i < m; i++){
int v, u, w;
cin >> v >> u >> w;
G[v].pb({u, w});
}
for(int i =1 ; i <= o; i++){
int v, u;
cin >> v >> u;
query[v].pb({u, i});
s.insert(v);
}
for(int u:s){
dij(u);
for(auto x : query[u]){
ans[x.S] = dis[x.F];
}
}
for(int i = 1;i <= o; i++)
cout << (ans[i] == INF ? -1 : ans[i]) << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3049 ms |
5256 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
34 ms |
4684 KB |
Output is correct |
2 |
Correct |
2 ms |
2644 KB |
Output is correct |
3 |
Correct |
3 ms |
2644 KB |
Output is correct |
4 |
Correct |
2 ms |
2644 KB |
Output is correct |
5 |
Correct |
1 ms |
2644 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
3 ms |
2900 KB |
Output is correct |
8 |
Correct |
4 ms |
3028 KB |
Output is correct |
9 |
Correct |
19 ms |
4692 KB |
Output is correct |
10 |
Correct |
49 ms |
5620 KB |
Output is correct |
11 |
Correct |
43 ms |
4692 KB |
Output is correct |
12 |
Correct |
29 ms |
4604 KB |
Output is correct |
13 |
Correct |
57 ms |
5504 KB |
Output is correct |
14 |
Correct |
35 ms |
4472 KB |
Output is correct |
15 |
Correct |
29 ms |
4088 KB |
Output is correct |
16 |
Correct |
26 ms |
4128 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
1 ms |
2644 KB |
Output is correct |
3 |
Correct |
1 ms |
2644 KB |
Output is correct |
4 |
Correct |
3 ms |
2644 KB |
Output is correct |
5 |
Correct |
2 ms |
2644 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
5 ms |
2644 KB |
Output is correct |
8 |
Correct |
11 ms |
2780 KB |
Output is correct |
9 |
Correct |
8 ms |
2644 KB |
Output is correct |
10 |
Correct |
31 ms |
4436 KB |
Output is correct |
11 |
Correct |
212 ms |
4424 KB |
Output is correct |
12 |
Correct |
313 ms |
5332 KB |
Output is correct |
13 |
Correct |
357 ms |
5592 KB |
Output is correct |
14 |
Correct |
331 ms |
4936 KB |
Output is correct |
15 |
Correct |
195 ms |
4052 KB |
Output is correct |
16 |
Correct |
192 ms |
4084 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2644 KB |
Output is correct |
2 |
Correct |
1 ms |
2644 KB |
Output is correct |
3 |
Correct |
1 ms |
2644 KB |
Output is correct |
4 |
Correct |
3 ms |
2644 KB |
Output is correct |
5 |
Correct |
2 ms |
2644 KB |
Output is correct |
6 |
Correct |
2 ms |
2644 KB |
Output is correct |
7 |
Correct |
5 ms |
2644 KB |
Output is correct |
8 |
Correct |
11 ms |
2780 KB |
Output is correct |
9 |
Correct |
8 ms |
2644 KB |
Output is correct |
10 |
Correct |
31 ms |
4436 KB |
Output is correct |
11 |
Correct |
212 ms |
4424 KB |
Output is correct |
12 |
Correct |
313 ms |
5332 KB |
Output is correct |
13 |
Correct |
357 ms |
5592 KB |
Output is correct |
14 |
Correct |
331 ms |
4936 KB |
Output is correct |
15 |
Correct |
195 ms |
4052 KB |
Output is correct |
16 |
Correct |
192 ms |
4084 KB |
Output is correct |
17 |
Execution timed out |
3056 ms |
4564 KB |
Time limit exceeded |
18 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
3049 ms |
5256 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |