func Sort(data sortable.Interface) {
n := data.Len() - 1
for i := n / 2; i >= 0; i-- {
sink(data, i, n)
}
for n > 0 {
data.Swap(0, n)
n = n - 1
sink(data, 0, n)
}
}
func partition(data sortable.Interface, start, end int) int {
p, i, j := start, start, end+1
for true {
i = i + 1
for data.Less(i, p) {
if i >= end {
break
}
i = i + 1
}
j = j - 1
for data.Less(p, j) {
if j <= start {
break
}
j = j - 1
}
if i >= j {
break
}
data.Swap(i, j)
}
data.Swap(p, j)
return j
}
func Sort(data sortable.Interface) {
for i := 0; i < data.Len(); i++ {
min := i
for j := i + 1; j < data.Len(); j++ {
if data.Less(j, min) {
min = j
}
}
data.Swap(i, min)
}
}
func quickSort3Way(data sortable.Interface, start, end int) {
if start >= end {
return
}
v, lt, i, gt := start, start+1, start+1, end
for i <= gt {
if data.Less(i, v) {
data.Swap(i, lt)
lt = lt + 1
i = i + 1
} else if data.Less(v, i) {
data.Swap(i, gt)
gt = gt - 1
} else {
i = i + 1
}
}
data.Swap(v, lt-1)
quickSort3Way(data, start, lt-1)
quickSort3Way(data, gt+1, end)
}
func Sort(data sortable.Interface) {
for i := 0; i < data.Len()-1; i++ {
for j := i + 1; j > 0 && data.Less(j, j-1); j-- {
data.Swap(j, j-1)
}
}
}
func Sort(data sortable.Interface) {
h := 1
for h < data.Len()/3 {
h = 3*h + 1
}
for h >= 1 {
for i := 0; i < data.Len()-h; i = i + h {
for j := i + h; j > 0 && data.Less(j, j-h); j = j - h {
data.Swap(j, j-1)
}
}
h = h / 3
}
}
func sink(data sortable.Interface, curr, total int) {
for curr*2+1 <= total {
c := curr*2 + 1
if c+1 <= total && data.Less(c, c+1) {
c = c + 1
}
if !data.Less(curr, c) {
break
}
data.Swap(curr, c)
curr = c
}
}
func Sort(data sortable.Interface) {
sortable.RandomShuffle(data)
quickSort(data, 0, data.Len()-1)
}
func Sort(data sortable.Interface) {
aux := data.AllocateNew()
mergeSort(data, aux, 0, data.Len()-1)
}
func merge(data, aux sortable.Interface, start, mid, end int) {
i, j := start, mid+1
for k := start; k <= end; k++ {
aux.Set(k, data.Get(k))
}
for k := start; k <= end; k++ {
if i > mid {
data.Set(k, aux.Get(j))
j = j + 1
} else if j > end {
data.Set(k, aux.Get(i))
i = i + 1
} else if aux.Less(i, j) {
data.Set(k, aux.Get(i))
i = i + 1
} else {
data.Set(k, aux.Get(j))
j = j + 1
}
}
}
