Cod sursa(job #108714)

Utilizator pauldbPaul-Dan Baltescu pauldb Data 23 noiembrie 2007 17:59:50
Problema Loto Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.46 kb
#include <stdio.h>
#include <algorithm>

using namespace std;

#define maxn 110
#define maxx 1000010

int n,s,l;
int a[maxn];
int v[maxx];

inline int search(int x)
{
       int front=1,middle,back=l;
       
       while (front<=back)
       {
             middle=(front+back)/2;
             
             if (v[middle]==x) return 1;
             else if (x<v[middle]) back=middle-1;
                  else front=middle+1;
       }
       
       return 0;
}

int main()
{
    freopen("loto.in","r",stdin);
    freopen("loto.out","w",stdout);
    
    scanf("%d %d ",&n,&s);
    
    int i,j,k,x;
    
    for (i=1;i<=n;i++) scanf("%d ",&a[i]);
    
    for (i=1;i<=n;i++)
      for (j=1;j<=n;j++)
        for (k=1;k<=n;k++) v[++l]=a[i]+a[j]+a[k];
        
    sort(v+1,v+l+1);
    
    for (i=1;i<=n;i++)
      for (j=1;j<=n;j++)
        for (k=1;k<=n;k++)
        {
            x=s-a[i]-a[j]-a[k];
            if (search(x))
            {
                 printf("%d %d %d ",a[i],a[j],a[k]);
                 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]==x) 
                       {
                            printf("%d %d %d ",a[i],a[j],a[k]);
                            printf("\n");
                            return 0;
                       } 
            }
        }
    
    printf("-1\n");
    
    return 0;
}