help required urgent!!

i want to print the double base representation of a number
ie if my number is 38 i shud get 36 + 2 and for 655 i shud get 648 + 6 + 1.
here's my code:

Code:

unsigned long bs(unsigned long a[],unsigned long d, unsigned long beg, unsigned long end, unsigned long x)
{    
     int mid;    
     mid=(beg+end)/2;    
     if (x<a[mid])    
     {        
              end=mid-1;        
              bs(a,d,beg,end,x);    
     }    
     else if(x<a[mid])    
     {        
              beg=mid+1;        
              bs(a,d,beg,end,x);    
     }
     else if(x>a[end])
     {    cout<<a[end]<<" + ";  
           return a[end];   
     }
     else if(x==a[mid])
     {  
          cout<<"FOUND!!\n";
          return a[mid];
     } 
}
void alg(unsigned long a[],unsigned long d, unsigned long x)
{
     unsigned long num;
     num=(x-bs(a,d,0,30,x));
     if (num>0)
         alg(a,d,num);
  
}
main()
{
      int c,n,d;
      d=c=(unsigned long)(pow(32,2));
      unsigned long a[d],b[c],t,x,y;
      d=c=0;
      a[0]=0;
      b[0]=0;
      for(int i=0;i<32;i++)
      {
          for(int j=0;j<32;j++)
          {
              b[c]=(unsigned long)(pow(2,i)*pow(3,j));
              if(j==0 || ULONG_MAX/pow(3,j)>pow(2,i))
              {
                 a[++d]=b[c++];
                // cout<<i<<"\t"<<j<<"\t"<<a[d]<<endl;
              }
              else
              {
                  break;
              }
           }
       }
     sort(a,a+d);
     cout<<"enter element:";
     cin>>x;
     cout<<"its representation is :"<<endl;
     alg(a,d,x);
     system("PAUSE");
}

wat im doing in my code for alg() is im finding the element in the array using bs()
if the elemnt i want is in the array im printing that otherwise im finding the element that is closest (from the lesser side) to it and finding the difference ie (x - closest number to x) and calling alg for the difference and so on.
ie for 655 the closest elemnt is 648 and 655-648 is 7 , calling alg with 7 gives the closest elemnt as 6 n 7-6 is 1 n so on..
in my bs() code im returning the elemnt or the one which is closest to it. but somehow its not printing that elemnt n neither is it returning it.


please help...
thanks for reading!

Welcome to the boards, that said...

From the forum guidelines:

Tips for Efficient and Successful Posting

1. Don't use all caps.

2. Use descriptive subject lines. Do not put URGENT!, or NEED HELP NOW, etc. in your title; it will not make people look at it any faster. Doing this makes many old time helpers on this board not look at the post at all.

So what you're saying is that your bs function is broken. And if you look at it, you will quickly see that that is the case -- the base case must always be checked first.