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go-algorithms/sorting/insertion_sort.go

31 lines
556 B
Go

package main
/*
* Insertion sort - https://en.wikipedia.org/wiki/Insertion_sort
*/
import "fmt"
import "github.com/0xAX/go-algorithms"
func main() {
arr := utils.RandArray(10)
fmt.Println("Initial array is:", arr)
fmt.Println("")
if (len(arr) <= 1) {
fmt.Println("Sorted array is: ", arr)
return
}
for curr := 1; curr < len(arr); curr++ {
curr_val := arr[curr]
prev := curr - 1
for ; prev >= 0 && arr[prev] > curr_val; prev-- {
arr[prev + 1] = arr[prev]
}
arr[prev + 1] = curr_val
}
fmt.Println("Sorted array is: ", arr)
}