fine, I'll put them on github

4/4.2.go

@@ -0,0 +1,43 @@
+package main
+
+import "os"
+import "fmt"
+import "strings"
+import "bufio"
+import "sort"
+
+// cat input | go run 4.2.go
+
+func main() {
+
+	failed := 0
+	count := 0
+
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		count++
+		s := strings.Split(scanner.Text(), " ")
+		fmt.Println(s)
+
+		for i := 0; i < len(s); i++ {
+			an := strings.Split(s[i], "")
+			sort.Strings(an)
+			san := strings.Join(an, "")
+			s[i] = san
+		}
+
+		sort.Strings(s)
+
+		for i := 1; i < len(s); i++ {
+			fmt.Println(i, s[i])
+			if s[i] == s[i-1] {
+				failed++
+				fmt.Println("Failed!", s[i], s[i-1])
+				break
+			}
+		}
+
+		fmt.Println("---")
+	}
+	fmt.Println(failed, count, count-failed)
+}

4/4.go

@@ -0,0 +1,35 @@
+package main
+
+import "os"
+import "fmt"
+import "strings"
+import "bufio"
+import "sort"
+
+// cat input | go run 4.go
+
+func main() {
+
+	failed := 0
+	count := 0
+
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		count++
+		s := strings.Split(scanner.Text(), " ")
+		fmt.Println(s)
+
+		sort.Strings(s)
+		for i := 1; i < len(s); i++ {
+			fmt.Println(i, s[i])
+			if s[i] == s[i-1] {
+				failed++
+				fmt.Println("Failed!")
+				break
+			}
+		}
+
+		fmt.Println("---")
+	}
+	fmt.Println(failed, count, count-failed)
+}