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Cod sursa(job #56592)
#include <stdio.h>
FILE *fin,*fout;
long sums[1000001],as[1000001],bs[1000001],cs[1000001];
long poz,hsize,n,i,j,k,s,l,a[101];
inline void inter(int i,int j)
{ int auxs,auxa,auxb,auxc;
auxs=sums[i];
auxa=as[i];
auxb=bs[i];
auxc=cs[i];
sums[i]=sums[j];
as[i]=as[j];
bs[i]=bs[j];
cs[i]=cs[j];
sums[j]=auxs;
as[j]=auxa;
bs[j]=auxb;
cs[j]=auxc;
}
long find(long val)
{
int i, step;
for (step = 1; step <= l; step <<= 1);
for (i = 0; step; step >>= 1)
if (i + step <= l && sums[i + step] <= val)
i += step;
if (sums[i]==val)
return i;
return 0;
}
void reheap (int i)
{ int l=2*i,r=2*i+1,max=i;
long aux;
if (l<=hsize&&sums[l]>sums[i])
max=l;
if (r<=hsize&&sums[r]>sums[max])
max=r;
if (max!=i)
{ inter(i,max);
reheap(max);
}
}
void hsort()
{ hsize=l;
long aux;
int i;
for (i=l/2;i>=1;i--)
reheap(i);
for (i=l;i>=2;i--)
{ inter(1,i);
hsize--;
reheap(1);
}
}
int main()
{
fin=fopen("loto.in","rt");
fout=fopen("loto.out","wt");
fscanf(fin,"%ld %ld",&n,&s);
for (i=1;i<=n;i++)
fscanf(fin,"%ld",&a[i]);
l=1;
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]<=s)
{
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++)
{ if (s-sums[i]<=sums[l]&&sums[i]!=sums[i-1])
{
poz=find(s-sums[i]);
if (poz)
{ fprintf(fout,"%ld %ld %ld %ld %ld %ld\n",as[i],bs[i],cs[i],as[poz],bs[poz],cs[poz]);
return 0;
}
}
}
fprintf(fout,"-1\n");
return 0;
}