public/subjects/swapfirst/README.md

swap-first

Instructions

• Write a function that takes a slice in parameter and swaps the two first element then return the new value
• If the slice contains less than two elements return the same slice.

Expected function

func SwapFirst(slice []int) []int {

}

Usage

Here is a possible program to test your function :

package main

import (
	"fmt"
)

func main() {
    fmt.Println(SwapFirst([]int{1,2,3,4}))
    fmt.Println(SwapFirst([]int{3,4}))
    fmt.Println(SwapFirst([]int{1}))
}

And its output :

$ go run .
[2,1,3,4]
[4,3]
[1]