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Cod sursa(job #963448)
#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
#define N 50005
#define inf (1 << 30)
using namespace std;
ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");
int n, m;
struct nod{int n, c;};
vector <int> d(N, inf);
vector <nod> a[N];
queue <int> q;
int main()
{
fin>>n>>m;
int x, y, l;
nod vf;
while(m--)
{
fin>>x>>y>>l;
vf.c = l, vf.n = y;
a[x].push_back(vf);
}
q.push(1);
d[1] = 0;
while(!q.empty())
{
x = q.front();
q.pop();
for(unsigned i=0; i<a[x].size(); ++i)
if(d[x] + a[x][i].c < d[a[x][i].n])
{
d[a[x][i].n] = d[x] + a[x][i].c;
q.push(a[x][i].n);
}
}
for(int i=2; i<=n; i++)
if(d[i] == inf) fout<<0<<' ';
else fout<<d[i]<<' ';
return 0;
}