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Cod sursa(job #56459)
#include <stdio.h>
#include <stdlib.h>
FILE *fin,*fout;
long long poz,hsize,sums[1000001],n,a[101],i,j,k,s,l,as[1000001],bs[1000001],cs[1000001];
long long find(long long val)
{
long long st=1,dr=l,mij;
while (st<=dr)
{ mij=(st+dr)/2;
if (sums[mij]==val)
return mij;
else
if (sums[mij]<val)
st=mij+1;
else
dr=mij-1;
}
return 0;
}
void reheap (int i)
{ int l=2*i,r=2*i+1,max=i,aux;
if (l<=hsize&&sums[l]>sums[i])
max=l;
if (r<=hsize&&sums[r]>sums[max])
max=r;
if (max!=i)
{ aux=sums[max];
sums[max]=sums[i];
sums[i]=aux;
reheap(max);
}
}
void hsort()
{ hsize=l;
int aux,i;
for (i=l/2;i>=1;i--)
reheap(i);
for (i=l;i>=2;i--)
{ aux=sums[1];
sums[1]=sums[i];
sums[i]=aux;
hsize--;
reheap(1);
}
}
int main()
{
fin=fopen("loto.in","rt");
fout=fopen("loto.out","wt");
fscanf(fin,"%lld %lld",&n,&s);
for (i=1;i<=n;i++)
fscanf(fin,"%lld",&a[i]);
l=1;
for (i=1;i<=n;i++)
for (j=1;j<=n;j++)
for (k=1;k<=n;k++)
{sums[l]=a[i]+a[j]+a[k];
as[l]=a[i];
bs[l]=a[j];
cs[l]=a[k];
l++;
}
l--;
hsort();
for (i=1;i<=l;i++)
{ poz=find(s-sums[i]);
if (poz)
{ fprintf(fout,"%lld %lld %lld %lld %lld %lld\n",as[i],bs[i],cs[i],as[poz],bs[poz],cs[poz]);
return 0;
}
}
fprintf(fout,"-1\n");
return 0;
}