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Cod sursa(job #938094)
#include <iostream>
#include <cstdio>
#include <cstdlib>
using namespace std;
int v[110],st[110],n,s;
bool valid(int k)
{
int i,sum=0;
for(i=1;i<k;i++)
sum+=v[st[i]];
if(sum==s)
return 1;
return 0;
}
void perm(int k)
{
int i;
if(7==k)
{if(valid(k))
{
for(i=1;i<=6;i++)
printf("%d ",v[st[i]]);
printf("\n");
exit(0);
}
}
else
for(i=1;i<=n;i++)
{
st[k]=i;
perm(k+1);
}
}
int main()
{
freopen("loto.in","r",stdin);
freopen("loto.out","w",stdout);
scanf("%d%d",&n,&s);
for(int i=1;i<=n;i++)
scanf("%d",&v[i]);
perm(1);
printf("-1");
return 0;
}