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53 lines
887 B
Go
53 lines
887 B
Go
package main
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/*
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* Counting sort - https://en.wikipedia.org/wiki/Counting_sort
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*/
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import "fmt"
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import "github.com/0xAX/go-algorithms"
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func getK(arr []int) int {
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if len(arr) == 0 {
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return 1
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}
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k := arr[0]
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for _, v := range arr {
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if v > k {
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k = v
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}
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}
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return k+1
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}
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func main(){
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arr := utils.RandArray(10)
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fmt.Println("Initial array is:", arr)
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fmt.Println("")
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k := getK(arr)
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array_of_counts := make([]int, k)
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for i:= 0; i < len(arr); i++ {
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array_of_counts[arr[i]] += 1
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}
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for i, j := 0, 0; i < k; i++ {
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for {
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if array_of_counts[i] > 0 {
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arr[j] = i
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j += 1
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array_of_counts[i] -= 1
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continue
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}
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break
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}
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}
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fmt.Println("Sorted array is: ", arr)
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}
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