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Cod sursa(job #42995)
#include<fstream>
using namespace std;
int a[200],n,x[10],s,gata=0;
ofstream out("loto.out");
void afisare(int k)
{
int i,ss=0;
for (i=1;i<=k;i++)
ss+=a[x[i]];
if (ss==s)
gata=1;
}
void back()
{
int k,ok;
k=1;
x[k]=0;
while(k>0 && !gata)
{
ok=0;
while(x[k]<n && !ok)
{
x[k]=x[k]+1;
ok=1;
}
if (ok)
if (k==6)
afisare(k);
else
{
k++;
x[k]=0;
}
else
k--;
}
}
int main()
{
ifstream in("loto.in");
in>>n>>s;
int i;
for (i=1;i<=n;i++)
in>>a[i];
in.close();
back();
if (gata==0)
out<<-1;
else
for (i=1;i<=6;i++)
out<<a[x[i]]<<" ";
out.close();
return 0;
}