/in/foo.cc: In function 'int fj(int)':
/in/foo.cc:14:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int findmax()':
/in/foo.cc:25:9: warning: 'bl' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return bl; 
         ^~
/in/foo.cc: In function 'int main()':
/in/foo.cc:35:16: warning: 'bl' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<findmax()<<endl;
                ^