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Cod sursa(job #302147)
#include<fstream>
#include<vector>
#include<algorithm>
#include<map>
using namespace std;
ifstream in("dijkstra.in");
ofstream out("dijkstra.out");
int n,m,i,j,x,y,z,d[50001],s[50001],k,k1,k2,k3,v[50001],i1;
vector<vector<int> > a,b;
multimap<int, int> p;
int main ()
{
in>>n>>m;
a.resize(50001);
b.resize(50001);
for(i=1;i<=m;i++)
{
in>>x>>y>>z;
a[x].push_back(y);
b[x].push_back(z);
}
s[0]=1;
v[1]=2;
while(k<n-1)
{
k1=-1;
k2=0;
for(i1=0;i1<=k;i1++)
{
if(!b[s[i1]].empty())
for(int it=0;it!=b[s[i1]].size();++it)
if((b[s[i1]][it]<k1 || k1==-1) && !v[a[s[i1]][it]])
{
k1=b[s[i1]][it];
k2=s[i1];
k3=a[s[i1]][it];
}
}
s[++k]=k3;
v[s[k]]=2;
d[s[k]]=d[k2]+k1;
}
for(i=2;i<=n;i++)
out<<d[i]<<" ";
}