/in/foo.c: In function 'main':
/in/foo.c:19:9: warning: unused variable 'temp' [-Wunused-variable]
     int temp =a[max];
         ^~~~
/in/foo.c:6:2: warning: 'n' is used uninitialized in this function [-Wuninitialized]
  int a[n];
  ^~~