Cod sursa(job #443909)

Utilizator sliceskullcandySlice Skull Candy sliceskullcandy Data 18 aprilie 2010 20:31:22
Problema Loto Scor 95
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.59 kb
//infoarena
//sliceskullcandy

#include <stdio.h>

long i,j,k,n,nv,A[102],v[1000002],ok,S;

void QuickSort(long L,long R)
{
	long i,j,aux,piv;
	piv=v[(L+R)/2];
	i=L;
	j=R;
	while(i<=j)
	{
		while(v[i]<piv) i++;
		while(piv<v[j]) j--;
		if(i<=j)
		{
			aux=v[i];
			v[i]=v[j];
			v[j]=aux;
			i++;
			j--;
		}
	}
	if(i<R) QuickSort(i,R);
	if(L<j) QuickSort(L,j);
}

long BS(long x,long L,long R)
{
	long m=(L+R)/2;
	if(L<R)
	{
		if(x<v[m]) return BS(x,L,m);
		else
		if(v[m]<x) return BS(x,m+1,R);
		else return 1;
	}
	else return 0;
}

void ploto(long sum)
{
	long i,j,k,ok;

	freopen("loto.out","w",stdout);

	ok=1;
	for(i=1;i<=n;i++)
	{
		for(j=i;j<=n;j++)
		{
			for(k=j;k<=n;k++)
				if(A[i]+A[j]+A[k]==sum)
				{
					ok=0;
					printf("%ld %ld %ld ",A[i],A[j],A[k]);
					break;
				}
			if(ok==0) break;
		}
		if(ok==0) break;
	}

	ok=1;
	for(i=1;i<=n;i++)
	{
		for(j=i;j<=n;j++)
		{
			for(k=j;k<=n;k++)
				if(A[i]+A[j]+A[k]==S-sum)
				{
					ok=0;
					printf("%ld %ld %ld\n",A[i],A[j],A[k]);
					break;
				}
			if(ok==0) break;
		}
		if(ok==0) break;
	}
}

int main()
{
	freopen("loto.in","r",stdin);

	scanf("%ld%ld",&n,&S);
	for(i=1;i<=n;i++)
		scanf("%ld",&A[i]);

	nv=0;
	for(i=1;i<=n;i++)
		for(j=i;j<=n;j++)
			for(k=j;k<=n;k++)
				v[++nv]=A[i]+A[j]+A[k];

	QuickSort(1,nv);

	ok=0;
	for(i=1;i<=nv;i++)
		if(v[i]<=S-v[i])
		{
			ok=BS(S-v[i],1,nv);
			if(ok==1)
			{
				ploto(v[i]);
				return 0;
			}
		}
		else break;

	freopen("loto.out","w",stdout);
	printf("-1\n");

	return 0;
}