package main
import "fmt"
func findArraySum(arr []int) int{
   res := 0
   for i:=0; i<len(arr); i++ {
      res += arr[i]
   }
   return res
}

func main(){
   fmt.Println(findArraySum([]int{1, 2, 3, 4, 5}))
   fmt.Println(findArraySum([]int{3, 5, 7, 2, 1}))
   fmt.Println(findArraySum([]int{9, 8, 6, 1, 0}))
}

15
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24