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Cod sursa(job #969903)
#include <fstream>
#include <bitset>
#include <queue>
#include <list>
using namespace std;
ifstream cin("catun.in");
ofstream cout("catun.out");
#define val first
#define ind second
#define inf (1<<31-1)
struct elem
{
int ind,val,parinte;
};
bool operator<(const elem &a,const elem &b)
{
if(a.val>b.val)
return 1;
if(a.val==b.val)
if(a.parinte>b.parinte)
return 1;
return 0;
}
list<pair<int,int> > v[56005];
bool viz[56005];
priority_queue<elem> coada;
int prec[56005];
int d[56005];
int main()
{
int n,m,k,i,x;
cin>>n>>m>>k;
for(i=1;i<=n;i++)
{
d[i]=inf;
prec[i]=0;//
}
elem aux,aux2;
for(i=1;i<=k;i++)
{
cin>>x;
d[x]=0;
aux.val=0;
aux.ind=x;//
aux.parinte=x;
coada.push(aux);
}
int a,b,c;
for(i=1;i<=m;i++)
{
cin>>a>>b>>c;
v[a].push_back(make_pair(c,b));
v[b].push_back(make_pair(c,a));
}
list<pair<int,int> >::iterator it;
while(!coada.empty())
{
aux=coada.top();
coada.pop();
if(!viz[aux.ind])
{
viz[aux.ind]=1;
for(it=v[aux.ind].begin();it!=v[aux.ind].end();it++)
{
if((d[aux.ind]+it->val)<d[it->ind])
{
d[it->ind]=(d[aux.ind]+it->val);
aux2.ind=it->ind;
aux2.val=d[it->ind];
aux2.parinte=aux.parinte;
prec[it->ind]=aux.parinte;
coada.push(aux2);
}
}
}
}
/////////////////////////////////////
for(i=1;i<=n;i++)
cout<<prec[i]<<' ';
cout<<'\n';
cin.close();
cout.close();
return 0;
}