/in/foo.cc: In function 'int printNode(int)':
/in/foo.cc:61:1: warning: no return statement in function returning non-void [-Wreturn-type]
   61 | }
      | ^
/in/foo.cc:23:5: warning: infinite recursion detected [-Winfinite-recursion]
   23 | int printNode(int n) {
      |     ^~~~~~~~~
/in/foo.cc:46:26: note: recursive call
   46 |                 printNode(lRealIdx);
      |                 ~~~~~~~~~^~~~~~~~~~
/in/foo.cc:55:26: note: recursive call
   55 |                 printNode(rRealIdx);
      |                 ~~~~~~~~~^~~~~~~~~~