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Cod sursa(job #860601)
# include <fstream>
# define nmax 50002
# define mmax 250002
# define inf 2000000000
using namespace std;
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
struct muchie
{
long x,y,c;
} G[mmax];
long D[nmax],m,n;
long i,x,y,c,ok;
int main()
{
// freopen("dijkstra.in","r",stdin);
//freopen("dijkstra.out","w",stdout);
//scanf("%ld %ld",&N,&M);
f>>n>>m;
for (i=1;i<=m;++i)
{
f>>x>>y>>c;
//scanf("%ld %ld %ld",&x,&y,&c);
G[i].x=x;
G[i].y=y;
G[i].c=c;
if (x==1)
D[y]=c;
}
for (i=2;i<=n;++i)
if (D[i]==0)
D[i]=inf;
do
{
ok=1;
for (i=1;i<=m;++i)
if (D[G[i].y]>D[G[i].x]+G[i].c)
{
D[G[i].y]=D[G[i].x]+G[i].c;
ok=0;
}
}while (!ok);
for (i=2;i<=n;++i)
if (D[i]!=inf)
//printf("%ld ",D[i]);
g<<D[i]<<" ";
else
g<<"0";
//else printf("0 ");
return 0;
}