heap-data-structure/fibonacci-heap

import {_remove as list_remove} from '@data-structure-algebra/circularly-linked-list';

export default function cut(x, y) {
    if (x === x.next) y.children = null;
    else {
        y.children = x.next;
        list_remove(x);
    }

    --y.degree;
    x.parent = null;
    x.mark = false;
}