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/*
* Catun - Supr*
* O(n^2*logn)
*/
#include<fstream>
#include <vector>
#include <queue>
#define NMAX 36005
#define MMAX 2*NMAX
#define pb push_back
#define INF 1e9
using namespace std;
/*
* FILES
*/
ifstream in("dijkstra.in");
ofstream out("dijkstra.out");
/*
* DATA STRUCTURES AND VARIABLES
*/
struct Node{
int y;
int cost;
Node(int y, int cost):y{y}, cost{cost} {}
bool operator<(const Node& ot) const{
return this->cost > ot.cost;
}
};
int n, m, k;
//vector<int> holds; //strongholds
int dist[NMAX];
vector<Node>G[NMAX]; //our graph
priority_queue<Node> pq;
/*
* Read data
*/
void read_data(){
in >> n >> m;
for(int i = 0; i<m; i++){
int x, y, c;
in >> x >> y >> c;
G[x].pb({y, c});
}
}
/*
* Dijkstra's Algorithm
*/
void dijkstra(int start){
for(int i = 0; i<=n; i++){
dist[i] = INF;
}
dist[start] = 0;
pq.push({start, dist[start]});
while(!pq.empty()){
auto head = pq.top();
pq.pop();
if(dist[head.y] != head.cost){
continue;
}
int node = head.y;
for(const auto& elem : G[node]){
if(dist[elem.y] > dist[node] + elem.cost){
dist[elem.y] = dist[node] + elem.cost;
pq.push({elem.y, dist[elem.y]});
}
}
}
}
int main(){
read_data();
dijkstra(1);
for(int i = 2; i<=n; i++){
dist[i] == INF ? out << 0 << ' ' : out << dist[i] << ' ';
}
return 0;
}