#include<bits/stdc++.h>
#include "cyberland.h"
#include<fstream>
using namespace std;
ifstream fin("VNOICUP.INP");
ofstream fout("VNOICUP.OUT");
#define sz(a) (int)a.size()
#define ll long long
#define pb push_back
#define forr(i, a, b) for(int i = a; i < b; i++)
#define dorr(i, a, b) for(int i = a; i >= b; i--)
#define ld long double
#define vt vector
#include<fstream>
#define fi first
#define se second
#define pll pair<ll, ll>
#define pii pair<int, int>
const int mxn = 1e5;
const ll prec = 1e-6;
struct ch{
int u, take; ld dd;
};
struct cmp{
bool operator()(const ch &a, const ch &b){
return(a.dd > b.dd);
}
};
vt<pii>adj[mxn + 1];
ld d[mxn + 1][71];
bool vis[mxn + 1], go[mxn + 1][71];
void dfs(int s){
vis[s] = 1;
for(auto [v, w]: adj[s]){
if(!vis[v])dfs(v);
}
}
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) {
k = min(k, 70);
forr(i, 0, n){
adj[i].clear();
forr(j, 0, k + 1){
d[i][j] = 1e18; go[i][j] = 0;
}
vis[i] = 0;
}
forr(i, 0, m){
int u = x[i], v = y[i], w = c[i];
adj[u].pb({v, w}); adj[v].pb({u, w});
}
dfs(0);
if(!vis[h])return(-1);
for(int i = 0; i < n; i++){
if((i == 0 || !arr[i]) && vis[i]){
for(int j = 0; j <= k; j++){
d[i][j] = 0;
}
}
}
for(int tt = 0; tt <= k; tt++){
priority_queue<ch, vt<ch>, cmp>pq;
for(int i = 0; i < n; i++){
if(d[i][tt] != 1e18)pq.push({i, tt, d[i][tt]});
}
while(!pq.empty()){
auto [u, take, dd] = pq.top(); pq.pop();
if((abs(dd - d[u][take]) > prec) || u == h)continue;
for(auto [v, w]: adj[u]){
if(d[v][take] > d[u][take] + w){
d[v][take] = d[u][take] + w;
pq.push({v, take, d[v][take]});
}
if(arr[u] == 2 && take < k){
d[v][take + 1] = min(d[v][take + 1], (d[u][take] / 2.0) + w);
}
}
}
}
ld ans = 1e18;
for(int i = 0; i <= k; i++)ans = min(ans, d[h][i]);
return(ans);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
48 ms |
2804 KB |
Wrong Answer. |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
178 ms |
4056 KB |
Correct. |
2 |
Correct |
209 ms |
3932 KB |
Correct. |
3 |
Correct |
197 ms |
3948 KB |
Correct. |
4 |
Correct |
203 ms |
3916 KB |
Correct. |
5 |
Correct |
200 ms |
3944 KB |
Correct. |
6 |
Correct |
234 ms |
14924 KB |
Correct. |
7 |
Correct |
309 ms |
14720 KB |
Correct. |
8 |
Correct |
149 ms |
27332 KB |
Correct. |
9 |
Correct |
135 ms |
2844 KB |
Correct. |
10 |
Correct |
131 ms |
2840 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
242 ms |
3980 KB |
Wrong Answer. |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
982 ms |
79696 KB |
Wrong Answer. |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
106 ms |
4044 KB |
Correct. |
2 |
Correct |
116 ms |
4000 KB |
Correct. |
3 |
Correct |
118 ms |
4080 KB |
Correct. |
4 |
Correct |
169 ms |
14948 KB |
Correct. |
5 |
Correct |
75 ms |
2848 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
126 ms |
4076 KB |
Wrong Answer. |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
150 ms |
4068 KB |
Wrong Answer. |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
296 ms |
4124 KB |
Wrong Answer. |
2 |
Halted |
0 ms |
0 KB |
- |