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Cod sursa(job #603190)
#include <fstream>
using namespace std;
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
typedef struct
{
int x,y,t;
} drum;
drum a[250000];
int n,m,v[50100],i;
bool ok;
int main()
{
f >> n >> m;
for (i=0; i<m; i++)
f >> a[i].x >> a[i].y >> a[i].t;
fill_n(v,n+2,-1);
v[1]=0;
ok=1;
while (ok)
{
ok=0;
for (i=0; i<m; i++)
if (v[a[i].x]!=-1 && (v[a[i].y]==-1 || v[a[i].y]>v[a[i].x]+a[i].t))
{
v[a[i].y]=v[a[i].x]+a[i].t;
ok=1;
}
}
for (i=2; i<=n; i++)
if (v[i]==-1) g << 0 << ' '; else g << v[i] << ' ';
}