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Cod sursa(job #575665)
#include<fstream>
#include<algorithm>
using namespace std;
ifstream f("economie.in");
ofstream g("economie.out");
const int VMAX=50001;
int n,v[1005],sol[1005],c,viz[50005];
int main()
{
int i,j,w;
f>>n;
for(i=1;i<=n;i++) f>>v[i];
sort(v+1,v+n+1);
viz[0]=1;
for(i=1;i<=n;i++)
if(!viz[v[i]])
{ w=v[i];
for(j=0;j+w<VMAX;++j) if(viz[j]) viz[j+w]=1;
sol[++c]=w;
}
g<<c<<'\n';
for(i=1;i<=c;++i) g<<sol[i]<<'\n';
f.close(); g.close();
return 0;
}