3 files changed, 87 insertions, 0 deletions
diff --git a/challenge-002/pokgopun/README b/challenge-002/pokgopun/README
new file mode 100644
index 0000000000..33dfd303a4
--- /dev/null
+++ b/challenge-002/pokgopun/README
@@ -0,0 +1 @@
+Solution by PokGoPun
diff --git a/challenge-002/pokgopun/go/ch-1.go b/challenge-002/pokgopun/go/ch-1.go
new file mode 100644
index 0000000000..080fb3cec9
--- /dev/null
+++ b/challenge-002/pokgopun/go/ch-1.go
@@ -0,0 +1,36 @@
+// Write a script or one-liner to remove leading zeros from positive numbers.
+// Assume number can be float and zero
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func main() {
+	if len(os.Args) > 1 {
+		w := bufio.NewWriter(os.Stdout)
+		var (
+			f   float64
+			err error
+		)
+		for _, v := range os.Args[1:] {
+			//fmt.Println(strings.TrimLeft(v, "0"))
+			f, err = strconv.ParseFloat(v, 64)
+			if err != nil || f < 0 {
+				log.Fatal("Not a positive number")
+			}
+			if f != 0 {
+				v = strings.TrimLeft(v, "0")
+			}
+			w.WriteString(v + "\n")
+		}
+		w.Flush()
+	} else {
+		fmt.Println("Enter number to have its leading zeros removed")
+	}
+}
diff --git a/challenge-002/pokgopun/go/ch-2.go b/challenge-002/pokgopun/go/ch-2.go
new file mode 100644
index 0000000000..cc68633dda
--- /dev/null
+++ b/challenge-002/pokgopun/go/ch-2.go
@@ -0,0 +1,50 @@
+// Write a script that can convert integers to and from a base35 representation, using the characters 0-9 and A-Y.
+package main
+
+import (
+	"errors"
+	"fmt"
+	"log"
+	"math/big"
+	"os"
+	"strconv"
+)
+
+func main() {
+	guide := `Example:
+To convert from base10to35, go run ch-2.go 10to35 1653676305073
+pokgopun
+To convert from base35to10, go run ch-2.go 35to10 PokGoPun
+1653676305073`
+	if len(os.Args) < 2 {
+		fmt.Println(guide)
+	} else {
+		switch os.Args[1] {
+		case "10to35":
+			n, err := strconv.Atoi(os.Args[2])
+			if err != nil {
+				log.Fatal(err)
+			}
+			fmt.Println(base10To35(n))
+		case "35to10":
+			n, err := base35To10(os.Args[2])
+			if err != nil {
+				log.Fatal(err)
+			}
+			fmt.Println(n)
+		default:
+			fmt.Println(guide)
+		}
+	}
+}
+func base10To35(n int) string {
+	return big.NewInt(int64(n)).Text(35)
+}
+func base35To10(str string) (int, error) {
+	i := new(big.Int)
+	j, ok := i.SetString(str, 35)
+	if ok {
+		return int(j.Int64()), nil
+	}
+	return 0, errors.New("conversion failed")
+}