Solution Review: Merge Sort

Let's go over the solution of solving MergeSort through concurrency.

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package main
import "fmt"
func Merge(left, right [] int) [] int{
merged := make([] int, 0, len(left) + len(right))
for len(left) > 0 || len(right) > 0{
if len(left) == 0 {
return append(merged,right...)
}else if len(right) == 0 {
return append(merged,left...)
}else if left[0] < right[0] {
merged = append(merged, left[0])
left = left[1:]
}else{
merged = append(merged, right [0])
right = right[1:]
}
}
return merged
}
func MergeSort(data [] int) [] int {
if len(data) <= 1 {
return data
}
done := make(chan bool)
mid := len(data)/2
var left [] int
go func(){
left = MergeSort(data[:mid])
done <- true
}()
right := MergeSort(data[mid:])
<-done
return Merge(left,right)
}
func main(){
data := [] int{9,4,3,6,1,2,10,5,7,8}
fmt.Printf("%v\n%v\n", data, MergeSort(data))
}

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