#include <bits/stdc++.h>
using namespace std;
const int N=2e6+1;
const long long inf=1e18;
struct nod
{
int unde;
long long cost;
};
struct coada
{
int unde;
long long cost;
};
struct compare
{
bool operator()(coada &x,coada &y)
{
return x.cost>y.cost;
}
};
vector<nod>adj[N];
long long best[N][2];
int travel_plan(int n,int m,int r[][2],int l[],int k,int p[])
{
for(int i=0; i<m; i++)
{
adj[r[i][0]].push_back({r[i][1],l[i]});
adj[r[i][1]].push_back({r[i][0],l[i]});
}
for(int i=0; i<n; i++)
{
best[i][0]=best[i][1]=inf;
}
priority_queue<coada,vector<coada>,compare>pq;
for(int i=0; i<k; i++)
{
best[p[i]][0]=0;
best[p[i]][1]=0;
pq.push({p[i],0});
}
while(!pq.empty())
{
int nod=pq.top().unde;
long long cost=pq.top().cost;
pq.pop();
if(cost!=best[nod][1])
continue;
for(auto u:adj[nod])
{
if(best[u.unde][0]>cost+u.cost)
{
if(best[u.unde][1]!=best[u.unde][0])
{
best[u.unde][1]=best[u.unde][0];
if(best[u.unde][1]!=inf)
pq.push({u.unde,best[u.unde][1]});
}
best[u.unde][0]=cost+u.cost;
}
else if(best[u.unde][1]>cost+u.cost)
{
best[u.unde][1]=cost+u.cost;
pq.push({u.unde,best[u.unde][1]});
}
}
}
return best[0][1];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
19 ms |
47196 KB |
Output is correct |
2 |
Correct |
19 ms |
47196 KB |
Output is correct |
3 |
Correct |
19 ms |
47452 KB |
Output is correct |
4 |
Correct |
24 ms |
47384 KB |
Output is correct |
5 |
Correct |
20 ms |
47452 KB |
Output is correct |
6 |
Correct |
19 ms |
47284 KB |
Output is correct |
7 |
Correct |
19 ms |
47532 KB |
Output is correct |
8 |
Correct |
19 ms |
47452 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
19 ms |
47196 KB |
Output is correct |
2 |
Correct |
19 ms |
47196 KB |
Output is correct |
3 |
Correct |
19 ms |
47452 KB |
Output is correct |
4 |
Correct |
24 ms |
47384 KB |
Output is correct |
5 |
Correct |
20 ms |
47452 KB |
Output is correct |
6 |
Correct |
19 ms |
47284 KB |
Output is correct |
7 |
Correct |
19 ms |
47532 KB |
Output is correct |
8 |
Correct |
19 ms |
47452 KB |
Output is correct |
9 |
Correct |
19 ms |
47592 KB |
Output is correct |
10 |
Correct |
19 ms |
47192 KB |
Output is correct |
11 |
Correct |
19 ms |
47372 KB |
Output is correct |
12 |
Correct |
21 ms |
47808 KB |
Output is correct |
13 |
Correct |
21 ms |
47964 KB |
Output is correct |
14 |
Correct |
19 ms |
47448 KB |
Output is correct |
15 |
Correct |
19 ms |
47452 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
19 ms |
47196 KB |
Output is correct |
2 |
Correct |
19 ms |
47196 KB |
Output is correct |
3 |
Correct |
19 ms |
47452 KB |
Output is correct |
4 |
Correct |
24 ms |
47384 KB |
Output is correct |
5 |
Correct |
20 ms |
47452 KB |
Output is correct |
6 |
Correct |
19 ms |
47284 KB |
Output is correct |
7 |
Correct |
19 ms |
47532 KB |
Output is correct |
8 |
Correct |
19 ms |
47452 KB |
Output is correct |
9 |
Correct |
19 ms |
47592 KB |
Output is correct |
10 |
Correct |
19 ms |
47192 KB |
Output is correct |
11 |
Correct |
19 ms |
47372 KB |
Output is correct |
12 |
Correct |
21 ms |
47808 KB |
Output is correct |
13 |
Correct |
21 ms |
47964 KB |
Output is correct |
14 |
Correct |
19 ms |
47448 KB |
Output is correct |
15 |
Correct |
19 ms |
47452 KB |
Output is correct |
16 |
Correct |
260 ms |
111588 KB |
Output is correct |
17 |
Correct |
69 ms |
58964 KB |
Output is correct |
18 |
Correct |
69 ms |
61268 KB |
Output is correct |
19 |
Correct |
305 ms |
117608 KB |
Output is correct |
20 |
Correct |
183 ms |
99796 KB |
Output is correct |
21 |
Correct |
39 ms |
53072 KB |
Output is correct |
22 |
Correct |
198 ms |
94488 KB |
Output is correct |