Method swap

sort/heapsort.go:74–78

(i, j int)

}

func (h *MaxHeap) swap(i, j int) {
	h.slice[i], h.slice[j] = h.slice[j], h.slice[i]
	h.updateidx(i)
	h.updateidx(j)
}

func (h MaxHeap) more(i, j int) bool {
	return h.slice[i].More(h.slice[j])