This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "crocodile.h"
#include <iostream>
#include <vector>
#include <queue>
#include <set>
using namespace std;
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]){
vector<int> distancia(N,1e9);
int maximo=1e9;
bool primero;
vector<vector<pair<int,int>>> conexiones(N,vector<pair<int,int>>());
set <int> salidas;
for(int i=0;i<M;i++){
conexiones[R[i][0]].push_back(make_pair(L[i],R[i][1]));
conexiones[R[i][1]].push_back(make_pair(L[i],R[i][0]));
}
for(int i=0;i<K;i++)salidas.insert(P[i]);
priority_queue <pair<int,int>> q;
q.push(make_pair(0,0));
distancia[0]=0;
priority_queue <pair<int,int>> caminos;
int nodo;
while(!q.empty()){
nodo=q.top().second;
q.pop();
for(pair<int,int> con:conexiones[nodo]){
int arista=con.first;
int siguiente=con.second;
caminos.push(make_pair(-arista,siguiente));
}
primero=true;
while(!caminos.empty()){
if(primero)primero=false;
else if(distancia[caminos.top().second]>distancia[nodo]-caminos.top().first){
distancia[caminos.top().second]=distancia[nodo]-caminos.top().first;
q.push(make_pair(caminos.top().first,caminos.top().second));
}
caminos.pop();
}
}
for(int i=0;i<K;i++){
maximo=min(maximo,distancia[P[i]]);
}
return maximo;
}
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