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/* Alg lui Dijkstra
* Complexitate O(n * log(m))
* Det dist minima de la un nod sursa la nodul toate celelalte noduri
*
*/
#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>
#include <queue>
#include <tuple>
using namespace std;
ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");
const int Inf = 0x3f3f3f3f;
using PI = pair<int, int>;
using VP = vector<PI>;
using VVP = vector<VP>;
using VI = vector<int>;
VVP G;
VI d; // d[x] = dist minima de la nodul sursa la nodul x
int n;
int m;
void ReadGraph();
void Dijkstra(int x, VI& d);
void WriteDistances();
int main()
{
ReadGraph();
Dijkstra(1, d);
WriteDistances();
return 0;
}
void Dijkstra(int x, VI& d)
{
priority_queue<PI, vector<PI>, greater<PI>> Q;
d = VI(n + 1, Inf);
d[x] = 0; // x - sursa
Q.emplace(0, x);
while (!Q.empty())
{
auto [dx, x] = Q.top();
Q.pop();
if (dx > d[x]) // daca x a fost anterior in coada
continue;
for (auto p : G[x])
{
auto [y, w] = p;
if (d[y] > d[x] + w)
{
d[y] = d[x] + w;
Q.emplace(d[y], y);
}
}
}
}
void ReadGraph()
{
fin >> n >> m;
G = VVP(n + 1);
int x, y, w;
while (m--)
{
fin >> x >> y >> w;
G[x].emplace_back(y, w);
}
}
void WriteDistances()
{
for (int i = 2; i <= n; ++i)
if (d[i] != Inf)
fout << d[i] << ' ';
else
fout << 0 << ' ';
}