#include "cyberland.h"
#include <bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define pdi pair<double,int>
#define fi first
#define se second
const double inf=1e18;
double solve(int N, int M, int K, int T, std::vector<int> x, std::vector<int> y, std::vector<int> c, std::vector<int> arr) {
K=min(K,67);
vector<vector<double>> dist(N,vector<double>(K+1,inf));
vector<vector<pii>> edge(N);
for(int i=0;i<M;i++){
edge[x[i]].push_back({y[i],c[i]});
edge[y[i]].push_back({x[i],c[i]});
}
vector<int> vis(N,0);
dist[0][0]=0;vis[0]=1;
queue<int> q;q.push(0);
while(!q.empty()){
int u=q.front();q.pop();
if(arr[u]==0) dist[u][0]=0;
if(u==T) continue;
for(auto [v,w]:edge[u]){
if(vis[v]) continue;
vis[v]=1;q.push(v);
}
}
bool ok=false;
double res=1e14;
for(int k=0;k<K;k++){
priority_queue<pdi,vector<pdi>,greater<pdi>> pq;
for(int i=0;i<N;i++){
if(i!=T && dist[i][k]!=inf) pq.push({dist[i][k],i});
}
while(!pq.empty()){
auto [d,u]=pq.top();pq.pop();
if(u==T){
res=min(res,d);
ok=true;continue;
}
if(d!=dist[u][k]) continue;
for(auto [v,w]:edge[u]){
double nd=dist[u][k]*(arr[u]?1.0/arr[u]:0)+w;
if(arr[u]==2) dist[v][k+1]=min(dist[v][k+1],nd);
if(dist[u][k]+w<dist[v][k]){
dist[v][k]=dist[u][k]+w;
pq.push({dist[u][k]+w,v});
}
}
}
}
if(ok) return res;
else return -1;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
23 ms |
468 KB |
Wrong Answer. |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
28 ms |
684 KB |
Correct. |
2 |
Correct |
35 ms |
724 KB |
Correct. |
3 |
Correct |
32 ms |
684 KB |
Correct. |
4 |
Correct |
32 ms |
596 KB |
Correct. |
5 |
Correct |
33 ms |
692 KB |
Correct. |
6 |
Correct |
27 ms |
3992 KB |
Correct. |
7 |
Correct |
38 ms |
3884 KB |
Correct. |
8 |
Correct |
18 ms |
7668 KB |
Correct. |
9 |
Correct |
31 ms |
428 KB |
Correct. |
10 |
Correct |
30 ms |
440 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
33 ms |
696 KB |
Correct. |
2 |
Correct |
32 ms |
688 KB |
Correct. |
3 |
Correct |
31 ms |
724 KB |
Correct. |
4 |
Correct |
34 ms |
416 KB |
Correct. |
5 |
Correct |
34 ms |
416 KB |
Correct. |
6 |
Correct |
7 ms |
3412 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
153 ms |
21728 KB |
Correct. |
2 |
Incorrect |
112 ms |
700 KB |
Wrong Answer. |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
27 ms |
724 KB |
Correct. |
2 |
Correct |
32 ms |
724 KB |
Correct. |
3 |
Correct |
32 ms |
700 KB |
Correct. |
4 |
Correct |
29 ms |
3668 KB |
Correct. |
5 |
Correct |
27 ms |
416 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
30 ms |
704 KB |
Correct. |
2 |
Correct |
26 ms |
800 KB |
Correct. |
3 |
Correct |
65 ms |
28148 KB |
Correct. |
4 |
Correct |
21 ms |
2468 KB |
Correct. |
5 |
Correct |
30 ms |
396 KB |
Correct. |
6 |
Correct |
29 ms |
724 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
135 ms |
584 KB |
Wrong Answer. |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
227 ms |
988 KB |
Wrong Answer. |
2 |
Halted |
0 ms |
0 KB |
- |