#ifndef __INTFAMILY__
#define __INTFAMILY__
#include <vector>
using namespace std ;

class IntFamily {
private:
  int parent ;
  vector<int> childList ;
public:
  IntFamily(int Parent)            // Creates family with no children
  {
    parent = Parent ;
    childList.clear() ;    // is this needed?
  }    
  IntFamily()                      // No children, Parent is 0
  {
    IntFamily::IntFamily(0) ;
  }
  void addChild(int NewChild)      // Adds new child to the family
  {
    childList.push_back(NewChild) ;
  }
  int getParent() const            // Returns parent of family
  {
    return parent ;
  }
  int getSize() const              // Returns size of family
  {
    return (int)childList.size() ;
  }
  int getChild(int I) const        // Returns I'th child of family
  {
    return I<(int)childList.size() ? childList[I] : -1 ;
  }

} ;

ostream& operator<<(ostream&, const IntFamily&) ;
#endif