public/subjects/swaplast

swaplast

Instructions

Write a function that takes as an argument a slice of integers and return another slice of integers with the last two elements swapped.

If the slice contains less than two elements return the same slice.

Expected function

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

}

Usage

Here is a possible program to test your function:

package main

import (
	"fmt"
)

func main() {
	fmt.Println(SwapLast([]int{1, 2, 3, 4}))
	fmt.Println(SwapLast([]int{3, 4, 5}))
	fmt.Println(SwapLast([]int{1}))
}

And its output:

$ go run .
[1 2 4 3]
[3 5 4]
[1]