go_workshop/chapter_05/exercise_5.05/main.go

package main

import "fmt"

func main() {

  i := []int{5, 10, 15}
  fmt.Println(sum(5, 4))
  fmt.Println(sum(i...))

}

func sum(nums ...int) int {

  total := 0

  for _, num := range nums {
    total += num
  }

  return total

}