Merge pull request #6214 from anita-87/main

Reto #16 - Go

Retos/Reto #16 - LA ESCALERA [Media]/go/anita-87.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	// Read the number from console
+	fmt.Println("Enter the number of steps")
+	reader := bufio.NewReader(os.Stdin)
+	str, err := reader.ReadString('\n')
+	checkError(err)
+	str = strings.Trim(str, "\n")
+
+	// Convert to number
+	steps, err := strconv.Atoi(str)
+	checkError(err)
+
+	// Print steps
+	printSteps(steps)
+}
+
+func printSteps(steps int) {
+	result := ""
+	if steps == 0 {
+		result = "__"
+	}
+	if steps > 0 {
+		for i := steps - 1; i >= 0; i-- {
+			spaces := strings.Repeat(" ", i*2)
+			result += fmt.Sprintf("%s_|\n", spaces)
+		}
+	}
+	if steps < 0 {
+		steps = steps * -1
+		for i := 0; i <= steps-1; i++ {
+			spaces := strings.Repeat(" ", i*2)
+			result += fmt.Sprintf("%s|_\n", spaces)
+		}
+	}
+	fmt.Println(result)
+}
+
+func checkError(err error) {
+	if err != nil {
+		log.Fatal(err)
+	}
+}