#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;
#define pii pair<int, int>
#define maxn 100010
const int bil = 1000000000;
vector<vector<pii>> adj(maxn);
int dist[maxn][2];
priority_queue<pii, vector<pii>, greater<pii>> pq;
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
for (int i = 0; i < N; i++) {
dist[i][0] = dist[i][1] = bil;
}
int v;
for (int i = 0; i < K; i++) {
v = P[i];
dist[v][0] = dist[v][1] = 0;
pq.push(pii(0, v));
}
for (int i = 0; i < M; i++) {
adj[R[i][0]].push_back(pii(R[i][1], L[i]));
adj[R[i][1]].push_back(pii(R[i][0], L[i]));
}
int d;
while (!pq.empty()) {
d = pq.top().first;
v = pq.top().second;
// cout << v << " : " << d << endl;
pq.pop();
if (dist[v][1] < d) continue;
for (pii vv : adj[v]) {
if (d + vv.second < dist[vv.first][0]) {
dist[vv.first][1] = dist[vv.first][0];
dist[vv.first][0] = d + vv.second;
pq.push(pii(dist[vv.first][1], vv.first));
}
else if (d + vv.second < dist[vv.first][1]) {
dist[vv.first][1] = d + vv.second;
pq.push(pii(dist[vv.first][1], vv.first));
}
}
}
return dist[0][1];
}
