30 lines
408 B
Go
30 lines
408 B
Go
package main
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import (
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"fmt"
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"os"
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"strconv"
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)
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var numFinal int = 1
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func main() {
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if len(os.Args) < 2 || len(os.Args) > 2 {
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fmt.Println("Usage: ./factorial 10")
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os.Exit(1)
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}
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arg := os.Args[1]
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numFactorial, err := strconv.Atoi(arg)
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if err != nil {
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fmt.Println(err)
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}
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for i := 1; i <= numFactorial; i++ {
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numFinal = numFinal * i
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}
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fmt.Println("El número factorizado es:", numFinal)
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}
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