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40 lines
589 B

package main
import (
"fmt"
"os"
"strconv"
)
func main() {
if len(os.Args) == 3 {
secondArg := 0
firstArg, err := strconv.Atoi(os.Args[1])
if err == nil {
secondArg, err = strconv.Atoi(os.Args[2])
}
if err != nil {
fmt.Println(err.Error())
return
}
fmt.Println(rangeOf(firstArg, secondArg))
} else {
fmt.Println()
}
}
func rangeOf(start, end int) []int {
var ran []int
if start >= end {
for i := start; i >= end; i-- {
ran = append(ran, i)
}
return ran
} else {
for i := start; i <= end; i++ {
ran = append(ran, i)
}
return ran
}
}