#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
#include <stack>
#include <algorithm>
using namespace std;
ifstream in("dijkstra.in");
ofstream out("dijkstra.out");
const int nmax = 50001;
const int inf = (1<<31) - 1;
class Graf
{
private:
bool orientat;
int nrNoduri;
vector <int> listaAdiacenta[nmax];
vector <pair <int, int>> listaAdiacentaCost[nmax];
public:
Graf(int nrNoduri = 0, bool orientat = false);
void adaugaMuchieCost(int, int, int);
void citireMuchii(int);
void citireMuchiiCost(int);
vector<int> BFS(int);
void DFS(int, bool*);
int nrComponenteConexe();
void DFSStiva(int nodcurent, bool *, stack<int> &);
void sortareTopologica();
void TarjanCTC(int&, int, int*, int*, bool*, stack <int> &, vector<vector<int>> &);
void CTC();
void TarjanBC(int&, int, int, int*, int*, stack <int>&, vector<vector<int>>&);
void BC();
void TarjanMC(int&, int, int, int*, int*, vector<pair<int,int>>&);
void MC();
vector <int> citireHakimi();
bool Hakimi(vector <int>);
vector <int> Dijkstra(int);
};
Graf :: Graf(int nrNoduri, bool orientat) : nrNoduri(nrNoduri), orientat(orientat)
{
this->nrNoduri = nrNoduri;
this->orientat = orientat;
}
void Graf::adaugaMuchieCost(int nod1, int nod2, int cost)
{
listaAdiacentaCost[nod1].push_back(make_pair(nod2, cost));
}
void Graf::citireMuchiiCost(int nrMuchii)
{
int nod1, nod2, cost;
for(int i = 0; i < nrMuchii; i++)
{
in >> nod1 >> nod2 >> cost;
adaugaMuchieCost(nod1, nod2, cost);
if(!orientat)
{
adaugaMuchieCost(nod2, nod1, cost);
}
}
}
vector <int> Graf::Dijkstra(int nodStart)
{
vector <int> distanta(nmax);
fill(distanta.begin(), distanta.end(), inf);
priority_queue <pair <int, int>, vector <pair <int, int>>, greater<pair<int,int>>> coada;
bool vizitat[nmax] = {0};
distanta[nodStart] = 0;
coada.push(make_pair(0,nodStart));
while(!coada.empty())
{
int nodCurent = coada.top().second;
coada.pop();
if(!vizitat[nodCurent])
{
vizitat[nodCurent] = true;
for(auto vecin:listaAdiacentaCost[nodCurent])
{
if(!vizitat[vecin.first])
{
if(distanta[nodCurent] + vecin.second < distanta[vecin.first])
{
distanta[vecin.first] = distanta[nodCurent] + vecin.second;
coada.push(make_pair(distanta[vecin.first], vecin.first));
}
}
}
}
}
return distanta;
}
int main()
{
int n, m;
in >> n >> m;
Graf g(n,true);
g.citireMuchiiCost(m);
vector <int> rezultat(nmax);
rezultat = g.Dijkstra(1);
for(int i = 2; i <=n; i++)
{
out << rezultat[i] << " ";
}
return 0;
}