Method solution

examples/kakuro.cpp:393–398

Return a solution

    }
    /// Return a solution
    IntArgs solution(void) const {
      IntArgs s(x.size());
      for (int i=0; i<x.size(); i++)
        s[i]=x[i].val();
      return s;
    }
  };

  /** \brief Generate tuple set for \a n distinct variables with sum \a c