#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define plx pair<ll,int>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
using namespace std;
const int mxn=1e5+5;
vector<pair<int,int>>g[mxn];
double d[67][mxn]{0};
int pr[mxn]{0};
int get(int r){
return pr[r]==r?r:pr[r]=get(pr[r]);
}
priority_queue<pair<double,pii>,vector<pair<double,pii>>,greater<pair<double,pii>>>q;
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){
iota(pr,pr+N,0);
K=min(K,66);for(int i=0;i<M;i++){
g[x[i]].pb({y[i],i}),g[y[i]].pb({x[i],i});
if(x[i]==H||y[i]==H)continue;
pr[get(x[i])]=get(y[i]);
}
for(int i=0;i<=K;i++)for(int j=0;j<N;j++)d[i][j]=1e17;
d[0][0]=0;q.push({0,{0,0}});arr[0]=0;double ans=1e17;
for(int i=1;i<N;i++)if(arr[i]==0&&get(i)==get(0))d[0][i]=0,q.push({0,{0,i}});
while(!q.empty()){
auto u=q.top();q.pop();
if(d[u.s.f][u.s.s]<u.f)continue;
if(u.s.s==H){ans=min(ans,u.f);continue;}
for(auto v:g[u.s.s]){
if(!arr[v.f])continue;
if(d[u.s.f][v.f]>u.f+c[v.s])d[u.s.f][v.f]=u.f+c[v.s],q.push({u.f+c[v.s],{u.s.f,v.f}});
if(arr[v.f]==2&&u.s.f<K){
double t = (u.f+c[v.s])/2.0;
if(d[u.s.f+1][v.f]>t)d[u.s.f+1][v.f]=t,q.push({t,{u.s.f+1,v.f}});
}
}
}for(int i=0;i<N;i++)g[i].clear();
return (ans>=1e17?-1:ans);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
11 ms |
6488 KB |
Correct. |
2 |
Correct |
11 ms |
6488 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
6744 KB |
Correct. |
2 |
Correct |
18 ms |
6748 KB |
Correct. |
3 |
Correct |
23 ms |
4700 KB |
Correct. |
4 |
Correct |
23 ms |
4700 KB |
Correct. |
5 |
Correct |
18 ms |
6748 KB |
Correct. |
6 |
Correct |
17 ms |
9048 KB |
Correct. |
7 |
Correct |
21 ms |
9052 KB |
Correct. |
8 |
Correct |
11 ms |
12172 KB |
Correct. |
9 |
Correct |
16 ms |
6236 KB |
Correct. |
10 |
Correct |
17 ms |
6236 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
16 ms |
6492 KB |
Correct. |
2 |
Correct |
17 ms |
6748 KB |
Correct. |
3 |
Correct |
16 ms |
6628 KB |
Correct. |
4 |
Correct |
17 ms |
4188 KB |
Correct. |
5 |
Correct |
17 ms |
6232 KB |
Correct. |
6 |
Correct |
6 ms |
6876 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
140 ms |
25676 KB |
Correct. |
2 |
Correct |
199 ms |
6864 KB |
Correct. |
3 |
Correct |
139 ms |
6744 KB |
Correct. |
4 |
Correct |
142 ms |
6748 KB |
Correct. |
5 |
Correct |
137 ms |
4184 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
15 ms |
4696 KB |
Correct. |
2 |
Correct |
32 ms |
4700 KB |
Correct. |
3 |
Correct |
17 ms |
3160 KB |
Correct. |
4 |
Correct |
18 ms |
5980 KB |
Correct. |
5 |
Correct |
14 ms |
2904 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
18 ms |
3420 KB |
Correct. |
2 |
Correct |
18 ms |
3344 KB |
Correct. |
3 |
Correct |
38 ms |
26716 KB |
Correct. |
4 |
Correct |
13 ms |
5256 KB |
Correct. |
5 |
Correct |
20 ms |
2908 KB |
Correct. |
6 |
Correct |
21 ms |
3416 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
179 ms |
3520 KB |
Correct. |
2 |
Correct |
26 ms |
4052 KB |
Correct. |
3 |
Correct |
664 ms |
26596 KB |
Correct. |
4 |
Correct |
446 ms |
11980 KB |
Correct. |
5 |
Correct |
772 ms |
51824 KB |
Correct. |
6 |
Correct |
316 ms |
27300 KB |
Correct. |
7 |
Correct |
417 ms |
11820 KB |
Correct. |
8 |
Correct |
436 ms |
5560 KB |
Correct. |
9 |
Correct |
163 ms |
7112 KB |
Correct. |
10 |
Correct |
159 ms |
5064 KB |
Correct. |
11 |
Correct |
411 ms |
4896 KB |
Correct. |
12 |
Correct |
169 ms |
7124 KB |
Correct. |
13 |
Correct |
182 ms |
5080 KB |
Correct. |
14 |
Correct |
384 ms |
14544 KB |
Correct. |
15 |
Correct |
423 ms |
9176 KB |
Correct. |
16 |
Correct |
163 ms |
7120 KB |
Correct. |
17 |
Correct |
200 ms |
5080 KB |
Correct. |
18 |
Correct |
198 ms |
7116 KB |
Correct. |
19 |
Correct |
412 ms |
6972 KB |
Correct. |
20 |
Correct |
14 ms |
6492 KB |
Correct. |
21 |
Correct |
17 ms |
4824 KB |
Correct. |
22 |
Correct |
27 ms |
9168 KB |
Correct. |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
580 ms |
8132 KB |
Correct. |
2 |
Correct |
80 ms |
7624 KB |
Correct. |
3 |
Correct |
421 ms |
61776 KB |
Correct. |
4 |
Correct |
940 ms |
10180 KB |
Correct. |
5 |
Correct |
2383 ms |
93048 KB |
Correct. |
6 |
Correct |
1152 ms |
79436 KB |
Correct. |
7 |
Correct |
1053 ms |
25380 KB |
Correct. |
8 |
Correct |
1065 ms |
7880 KB |
Correct. |
9 |
Correct |
546 ms |
7108 KB |
Correct. |
10 |
Correct |
550 ms |
9332 KB |
Correct. |
11 |
Correct |
1808 ms |
4692 KB |
Correct. |
12 |
Correct |
551 ms |
9124 KB |
Correct. |
13 |
Correct |
608 ms |
7048 KB |
Correct. |
14 |
Execution timed out |
3043 ms |
94892 KB |
Time limit exceeded |
15 |
Halted |
0 ms |
0 KB |
- |