public/subjects/compact.en.md

compact

Instructions

Write a function Compact that takes a pointer to an array as parameter and overwrites the elements that points to nil.

• Hint : This fonction exists in Ruby.

Expected function

func Compact(ptr *[]string, length int) int {

}

Usage

Here is a possible program to test your function :

package main

import fmt

func main() {
	array := []string{"hello", " ", "there", " ", "bye"}

	ptr := &array
	fmt.Println(Compact(ptr, len(array)))
}

And its output :

student@ubuntu:~/piscine/test$ go build
student@ubuntu:~/piscine/test$ ./test
3
student@ubuntu:~/piscine/test$