func HeapInt(u []int) []int {
newL := make([]int, len(u))
copy(newL, u)
for i := (len(u) / 2) - 1; i > 0; i-- {
heapifyInt(newL, i, len(u))
}
for i := len(u) - 1; i > 0; i-- {
common.SwapInt(newL, 0, i)
heapifyInt(newL, 0, i)
}
return newL
}
func heapifyInt(u []int, i, max int) {
left := 2 * i
right := left + 1
largest := 0
if left < max && u[left] > u[i] {
largest = left
} else {
largest = i
}
if right < max && u[right] > u[largest] {
largest = right
}
if largest != i {
common.SwapInt(u, i, largest)
heapifyInt(u, largest, max)
}
}