misspelled route function names

handlers.go

@@ -14,7 +14,7 @@ type prob struct {
 	Last      int
 }
 
-func attempt(w http.ResponseWriter, req *http.Request) {
+func problem(w http.ResponseWriter, req *http.Request) {
 	operation := "+"
 	if r := rand.Intn(2); r == 0 {
 		operation = "-"
@@ -43,6 +43,6 @@ func attempt(w http.ResponseWriter, req *http.Request) {
 	fmt.Fprintf(w, j)
 }
 
-func problem(w http.ResponseWriter, req *http.Request) {
+func attempt(w http.ResponseWriter, req *http.Request) {
 	fmt.Fprintf(w, "hello world")
 }