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#define MAX_N 50000
#include <fstream>
#include <vector>
#include <queue>
using namespace std;
ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");
struct A
{
int nod, cost;
bool operator < (const A& other) const { return cost < other.cost; }
};
int n, m;
vector<A> G[MAX_N + 1];
vector<int> dist;
void Citire();
void Dijkstra(int nodStart, vector<int>& outDist);
int main()
{
Citire();
Dijkstra(1, dist);
for (size_t i = 2, l = dist.size(); i < l; ++i)
{
fout << dist[i] << ' ';
}
fin.close();
fout.close();
return 0;
}
void Citire()
{
fin >> n >> m;
int x, y, cost;
for (int i = 0; i < m; ++i)
{
fin >> x >> y >> cost;
G[x].push_back({ y, cost });
G[y].push_back({ x, cost });
}
}
void Dijkstra(int nodStart, vector<int>& outDist)
{
bool inQ[MAX_N + 1] = { false };
outDist = vector<int>(n + 1);
priority_queue<A> Q;
for (const auto& i : G[nodStart])
{ Q.push({ i.nod, i.cost }); outDist[i.nod] = i.cost; }
while (!Q.empty())
{
A nod = Q.top();
Q.pop();
inQ[nod.nod] = false;
for (const auto& i : G[nod.nod])
{
if (i.nod == nodStart) continue;
if ((outDist[i.nod] == 0) || (outDist[i.nod] > (i.cost + outDist[nod.nod])))
{
outDist[i.nod] = i.cost + outDist[nod.nod];
if (!inQ[i.nod])
{
Q.push({ i.nod, outDist[i.nod] });
inQ[i.nod] = true;
}
}
}
}
}