provide introduction to enter game and exit

src/main/quizproject.c

@@ -181,6 +181,29 @@ void math_display_choice(){
 
 }
 
+
+void math_enter_game() {
+    int choice = 0;
+    printf("\t\t-------------------------------------------------------\n");
+    printf("\t\t          Please enter 1 to start the game\n ");
+    printf("\t\t          Please enter 0 to exit \n");
+    printf("\t\t-------------------------------------------------------\n\n");
+    printf("Enter your choice: ");
+
+    scanf("%d", &choice);
+    switch (choice){
+        // in order to start the game
+        case 1:
+            math_display_choice();
+            break;
+        default:
+             printf("\t\t-------------------------------------------------------\n");
+             printf("\t\t              Sorry to see you go.\n ");
+             printf("\t\t-------------------------------------------------------\n\n");
+    }
+
+}
+
 //------------Math_quiz_end--------------
 
 
@@ -2175,7 +2198,7 @@ int main(int argc, char *argv[]) {
             jump_to_menu = 1;
             break;
         case 9:
-            math_display_choice();
+            math_enter_game();
             jump_to_menu = 1;
             break;
         case 10:

src/main/quizproject.h

@@ -41,6 +41,7 @@ void million_exit(int million_a);
 void math_choose_question(int);
 int math_answer(int);
 void math_display_choice();
+void math_enter_game();
 
 //------Math_quiz_header_end-------