Cod sursa(job #136339)

Utilizator allynaAlina S allyna Data 15 februarie 2008 14:14:21
Problema Loto Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.83 kb
#include <fstream.h>
#include <algorithm>

using namespace std;

int a[100], nr[1<<20], n, s, N;

int main()
{
	ifstream in("loto.in");
	ofstream out("loto.out");
	in>>n>>s;
	for (int i=0; i<n; i++)
		scanf("%d ", a+i);
	for (int i=0; i<n; i++)
		for (int j=i; j<n; j++)
			for (int k=j; k<n; k++)
				nr[N++] = a[i]+a[j]+a[k];
	sort(nr, nr+N);
	for (int i=0; i<n; i++)
		for (int j=i; j<n; j++)
			for (int k=j; k<n; k++){
				int poz = 0;
				for (int p=1<<19; p; p/=2)
					if (poz+p<N && nr[poz+p]<=s-a[i]-a[j]-a[k]) poz += p;
				if (nr[poz]!=s-a[i]-a[j]-a[k]) continue;
				for (int p1=0; p1<n; p1++)
					for (int p2=p1; p2<n; p2++)
						for (int p3=p2; p3<n; p3++)
							if (a[p1]+a[p2]+a[p3] == nr[poz]){
								out<<a[i]<<a[j]<<a[k]<<a[p1]<<a[p2]<<a[p3]);
								return 0;
							}
			}
	out<<"-1";
}