Cod sursa(job #801950)

Utilizator paunmatei7FMI Paun Matei paunmatei7 Data 25 octombrie 2012 15:05:07
Problema Loto Scor 30
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.2 kb
#include<cstdio>
#include<algorithm>
using namespace std;
long long b[1000007];
long a[107];
long n,s,u;
inline bool bs(long long val)//cautare binara
{
	long st=1,dr=u,med;
	while (st<=dr)
	{
		med=(st+dr)/2;
		if (b[med]==val)
			return 1;
		if (b[med]<val)
			st=med+1;
		else
			dr=med-1;
	}
	if (b[med]==val)
		return 1;
	return 0;
}
int main()
{
	long i,j,k,i1,j1,k1,poz1,poz2,poz3,poz11,poz21,poz31;
	freopen("loto.in","r",stdin);
	freopen("loto.out","w",stdout);
	scanf("%ld %ld",&n,&s);
	for (i=1;i<=n;i++)
		scanf("%ld",&a[i]);
	//sume
	for (i=1;i<=n;i++)
		for (j=i;j<=n;j++)
			for (k=j;k<=n;k++)
				b[++u]=a[i]+a[j]+a[k];
	sort(b+1,b+u+1);//sortez
	bool ok=0;
	for (i=1;i<=u;i++)
		if (bs(s-b[i])==1&&ok==0)
		{
			//afisez solutii
			for (i1=1;i1<=n&&ok==0;i1++)
				for (j1=i1;j1<=n&&ok==0;j1++)
					for (k1=j1;k1<=n&&ok==0;k1++)
					{
						if (a[i1]+a[j1]+a[k1]==b[i])
							poz1=a[i1],poz2=a[j1],poz3=a[k1];
						if (a[i1]+a[j1]+a[k1]==s-b[i]&&ok==0)
						{
							poz11=a[i1],poz21=a[j1],poz31=a[k1];
							if (poz1!=0&&poz2!=0&&poz3!=0)
								ok=1;
						}
					}
		}
	if (ok==0)
		printf("-1");
	else
		printf("%ld %ld %ld %ld %ld %ld",poz1,poz2,poz3,poz11,poz21,poz31);
	return 0;
}