Merge remote-tracking branch 'upstream/master'

118 files changed, 5036 insertions, 2367 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"