#include <iostream>
#include <fstream>
#include <bits/stdc++.h>
using namespace std;
class graf {
protected:
int noduri, muchii;
vector < vector < int >> adiacenta;
public:
// Constructor cu matrice de adiacenta data
graf(vector < vector < int >> listaAdiacenta, int noduri, int muchii): adiacenta(listaAdiacenta), noduri(noduri), muchii(muchii) {};
// Constructor fara matrice de adiacenta, se cu initalizeaza una goala
graf(int noduri, int muchii): adiacenta(noduri + 1), noduri(noduri), muchii(muchii) {};
vector < int > bfs(int);
int dfs();
};
class graf_neorientat : public graf{
private:
void dfsbiconex(int, vector < int >&, vector < int >&, stack < pair < int, int >>&, int&, vector < string >&);
void dfsCriticalConnections(int tata, vector < int >&, vector < int >&, int&, vector < vector < int >>&, vector < int >&);
public:
graf_neorientat(vector < vector < int >> listaAdiacenta, int noduri, int muchii): graf(listaAdiacenta, noduri, muchii) {};
graf_neorientat(int noduri, int muchii): graf(noduri, muchii) {};
friend istream& operator>>(istream&, graf_neorientat&);
vector < string > biconex();
vector < vector < int >> criticalConnections();
};
class graf_neorientat_ponderat : public graf_neorientat {
// Matrice de adianceta care contine si costurile
vector< vector< pair< int, int >>> adiacentap;
public:
graf_neorientat_ponderat(vector < vector < int >> listaAdiacenta, int noduri, int muchii): graf_neorientat(listaAdiacenta, noduri, muchii) {};
graf_neorientat_ponderat(int noduri, int muchii): adiacentap(noduri+1), graf_neorientat(noduri, muchii) {};
friend istream& operator>>(istream&, graf_neorientat_ponderat&);
unordered_map<int, int> dijkstra();
};
istream& operator>>(istream& in, graf_neorientat_ponderat& g) {
for (int i = 0; i < g.muchii; i++) {
int aux1, aux2, aux3;
in >> aux1 >> aux2 >> aux3;
g.adiacentap[aux1].push_back(make_pair(aux2, aux3));
}
return in;
}
unordered_map<int, int> graf_neorientat_ponderat :: dijkstra() {
unordered_map<int, int> m;
priority_queue<vector<int>> p;
m[1] = 0;
p.push({0, 1});
while(!p.empty()){
vector<int> muchie = p.top();
p.pop();
for(auto i : adiacentap[muchie[1]]){
int nod = i.first, cost = i.second;
if(m.find(nod) == m.end() || m[nod] > m[muchie[1]] + cost){
//cout<<i.first<<" "<<m[nod]<<endl;
m[nod] = m[muchie[1]] + cost;
p.push({-(m[nod]), nod});
}
}
}
return m;
}
void dijkstraDriver() {
// https://infoarena.ro/problema/dijkstra
// Citire
ifstream in ("dijkstra.in");
ofstream out("dijkstra.out");
int n, m;
in >> n >> m;
graf_neorientat_ponderat x(n, m);
in>>x;
unordered_map<int, int> v = x.dijkstra();
for(int i=2; i<=n; i++){
if(v.find(i)==v.end()){
out<<"0 ";
}
else{
out<<v[i]<<" ";
}
}
}
int main() {
// Se apeleaza functia corespunzatoare problemei
dijkstraDriver();
return 0;
}