/in/foo.c: In function 'main':
/in/foo.c:19:11: warning: 'ave' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if(ave - (int)ave> 0.5){
           ^~~~~~~~
/in/foo.c:29:2: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
  printf("%d", s);
  ^~~~~~~~~~~~~~~