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Cod sursa(job #804380)
#include<stdio.h>
int u,a[105],sums[1000005],aux[1000005];
bool bs(int val)
{
int st=1,dr=u,med;
while(st<=dr)
{
med=(st+dr)/2;
if(sums[med]==val)
return 1;
else
if(sums[med]>val)
dr=med-1;
else
st=med+1;
}
return 0;
}
void interclass(int x,int y)
{
int i,k,med,p1,p2;
med=(x+y)/2;p1=x;p2=med+1;k=x;
while(p1<=med && p2<=y)
if(sums[p1]<sums[p2])
aux[k++]=sums[p1++];
else
aux[k++]=sums[p2++];
while(p1<=med) aux[k++]=sums[p1++];
while(p2<=med) aux[k++]=sums[p2++];
for(i=x;i<=y;i++)
sums[i]=aux[i];
}
void merge_sort(int i,int j)
{
int med=(i+j)/2;
if(i==j) return;
merge_sort(i,med);
merge_sort(med+1,j);
interclass(i,j);
}
int main()
{
freopen("loto.in","r",stdin);
freopen("loto.out","w",stdout);
int ok,indice,n,i,j,k,s,p,q,r;
scanf("%d%d",&n,&s);
for(i=1;i<=n;i++)
scanf("%d",&a[i]);
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
for(k=1;k<=n;k++)
sums[++u]=a[i]+a[j]+a[k];
merge_sort(1,u);
for(indice=1;indice<=u;indice++)
if(bs(s-sums[indice]))
{
ok=0;
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
for(k=1;k<=n;k++)
if(a[i]+a[j]+a[k]==sums[indice])
{
ok=1;
break;
}
if(ok==1)
break;
}
if(ok==1)
break;
}
for(p=1;p<=n;p++)
for(q=1;q<=n;q++)
for(r=1;r<=n;r++)
if(sums[indice]+a[p]+a[q]+a[r]==s)
{
printf("%d %d %d %d %d %d\n",a[i],a[j],a[k],a[p],a[q],a[r]);
return 0;
}
}
printf("-1\n");
return 0;
}