/in/foo.cc: In function 'int main()':
/in/foo.cc:7:2: warning: 'a' is used uninitialized in this function [-Wuninitialized]
  if(a>b)
  ^~
/in/foo.cc:7:2: warning: 'b' is used uninitialized in this function [-Wuninitialized]
/in/foo.cc:11:6: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized]
      if(b>c)                                                                                                                                                                    
      ^~