Method cut

JSAT/src/jsat/utils/FibHeap.java:243–258

@param x the child @param y the parent

(FibNode<T> x, FibNode<T> y)

     * @param y the parent
     */
    private void cut(FibNode<T> x, FibNode<T> y)
    {
        //1| remove x from the child list of y, decrementing y.degree
        if(y.child == x)//if we removed but x was the child pointer, we would get messed up
            y.child = delink(x);
        else
            delink(x);
        y.degree--;//removal of 'x' from y
        y.degree-= x.degree;//removal of everyone x owned from y
        //2| add x to the root list of H
        min = merge(min, x);
        //3| x.p = NIL
        x.p = null;
        //4| x.mark = FALSE
        x.mark = false;
    }
    
    private void cascadingCut(FibNode<T> y)
    {