#include "cyberland.h"
#include <bits/stdc++.h>
using namespace std;
#define f(i,a,b) for(int i = a;i < b;i++)
#define ll int
#define ii pair<ll,ll>
#define id pair<double,ii>
#define F first
#define S second
#define pb push_back
priority_queue<id>pq;
bool v[100005] = {0};
double dist[100005][70];
vector<vector<ii> >adj;
ll H;
void dfs(ll idx){
v[idx] = 1;
for(auto x:adj[idx]){
if(!v[x.F] && x.F != H){
dfs(x.F);
}
}
}
double solve(int n, int m, int k, int h, std::vector<int> x, std::vector<int> y, std::vector<int> c, std::vector<int> arr) {
double ans;
H = h;
k = min(k,67);
adj.assign(n+5,vector<ii>());
f(i,0,n){
v[i] = 0;
f(j,0,k+1){
dist[i][j] = 1e18;
}
}
f(i,0,m){
adj[x[i]].pb(ii(y[i],c[i]));
adj[y[i]].pb(ii(x[i],c[i]));
}
dfs(0);
f(i,0,n){
if((arr[i] == 0 && v[i]) || i == 0){
pq.push(id(0,ii(i,0)));
dist[i][0] = 0;
}
}
ans = 1e18;
while(!pq.empty()){
id f = pq.top();
pq.pop();
double w = -f.F;
ll u = f.S.F;
ll ek = f.S.S;
if(dist[u][ek] < w){
continue;
}
if(arr[u] == 2 && ek+1 <= k){
for(auto x:adj[u]){
if(x.F == h){
ans = min(ans,dist[u][ek]/2 + x.S);
}
else if(dist[x.F][ek+1] > dist[u][ek]/2 + x.S){
dist[x.F][ek+1] = dist[u][ek]/2 + x.S;
pq.push(id(-dist[x.F][ek+1],ii(x.F,ek+1)));
}
}
}
for(auto x:adj[u]){
if(x.F == h){
ans = min(ans,dist[u][ek] + x.S);
}
else if(dist[x.F][ek] > dist[u][ek] + x.S){
dist[x.F][ek] = dist[u][ek] + x.S;
pq.push(id(-dist[x.F][ek],ii(x.F,ek)));
}
}
}
if(ans == 1e18){
ans = -1;
}
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
14 ms |
468 KB |
Correct. |
| 2 |
Correct |
15 ms |
408 KB |
Correct. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
19 ms |
980 KB |
Correct. |
| 2 |
Correct |
23 ms |
1016 KB |
Correct. |
| 3 |
Correct |
21 ms |
1008 KB |
Correct. |
| 4 |
Correct |
23 ms |
1000 KB |
Correct. |
| 5 |
Correct |
22 ms |
1028 KB |
Correct. |
| 6 |
Correct |
22 ms |
6604 KB |
Correct. |
| 7 |
Correct |
28 ms |
6504 KB |
Correct. |
| 8 |
Correct |
17 ms |
12884 KB |
Correct. |
| 9 |
Correct |
21 ms |
340 KB |
Correct. |
| 10 |
Correct |
21 ms |
412 KB |
Correct. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
23 ms |
980 KB |
Correct. |
| 2 |
Correct |
23 ms |
1036 KB |
Correct. |
| 3 |
Correct |
21 ms |
996 KB |
Correct. |
| 4 |
Correct |
21 ms |
340 KB |
Correct. |
| 5 |
Correct |
33 ms |
408 KB |
Correct. |
| 6 |
Correct |
6 ms |
5588 KB |
Correct. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
208 ms |
39880 KB |
Correct. |
| 2 |
Correct |
247 ms |
1180 KB |
Correct. |
| 3 |
Correct |
215 ms |
1104 KB |
Correct. |
| 4 |
Correct |
229 ms |
1152 KB |
Correct. |
| 5 |
Correct |
187 ms |
444 KB |
Correct. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
19 ms |
1024 KB |
Correct. |
| 2 |
Correct |
21 ms |
984 KB |
Correct. |
| 3 |
Correct |
21 ms |
1028 KB |
Correct. |
| 4 |
Correct |
22 ms |
6692 KB |
Correct. |
| 5 |
Correct |
18 ms |
432 KB |
Correct. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
22 ms |
1052 KB |
Correct. |
| 2 |
Correct |
19 ms |
980 KB |
Correct. |
| 3 |
Correct |
51 ms |
48716 KB |
Correct. |
| 4 |
Correct |
17 ms |
4976 KB |
Correct. |
| 5 |
Correct |
20 ms |
432 KB |
Correct. |
| 6 |
Correct |
21 ms |
1068 KB |
Correct. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
251 ms |
1480 KB |
Correct. |
| 2 |
Correct |
37 ms |
2568 KB |
Correct. |
| 3 |
Correct |
627 ms |
63464 KB |
Correct. |
| 4 |
Correct |
511 ms |
14480 KB |
Correct. |
| 5 |
Correct |
942 ms |
58900 KB |
Correct. |
| 6 |
Correct |
416 ms |
26880 KB |
Correct. |
| 7 |
Correct |
471 ms |
15948 KB |
Correct. |
| 8 |
Correct |
477 ms |
2760 KB |
Correct. |
| 9 |
Correct |
218 ms |
1516 KB |
Correct. |
| 10 |
Correct |
218 ms |
2040 KB |
Correct. |
| 11 |
Correct |
456 ms |
1484 KB |
Correct. |
| 12 |
Correct |
236 ms |
1556 KB |
Correct. |
| 13 |
Correct |
245 ms |
1468 KB |
Correct. |
| 14 |
Correct |
409 ms |
31108 KB |
Correct. |
| 15 |
Correct |
461 ms |
8632 KB |
Correct. |
| 16 |
Correct |
233 ms |
1460 KB |
Correct. |
| 17 |
Correct |
267 ms |
1456 KB |
Correct. |
| 18 |
Correct |
260 ms |
1488 KB |
Correct. |
| 19 |
Correct |
627 ms |
1572 KB |
Correct. |
| 20 |
Correct |
18 ms |
596 KB |
Correct. |
| 21 |
Correct |
18 ms |
1108 KB |
Correct. |
| 22 |
Correct |
29 ms |
3400 KB |
Correct. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
798 ms |
2976 KB |
Correct. |
| 2 |
Correct |
107 ms |
3528 KB |
Correct. |
| 3 |
Correct |
539 ms |
66972 KB |
Correct. |
| 4 |
Correct |
955 ms |
5484 KB |
Correct. |
| 5 |
Execution timed out |
3044 ms |
157528 KB |
Time limit exceeded |
| 6 |
Halted |
0 ms |
0 KB |
- |
