Use stdlib Repeat function

iteration/iteration.go

@@ -12,10 +12,6 @@ func Repeat(character string, count int) string {
 	if count == 0 {
 		count = defaultRepeatCount
 	}
-	var repeated strings.Builder
-	for range count {
-		repeated.WriteString(character)
-	}
 
-	return repeated.String()
+	return strings.Repeat(character, count)
 }