/in/foo.c: In function 'main':
/in/foo.c:16:11: warning: zero-length gnu_printf format string [-Wformat-zero-length]
    printf("");}
           ^~
/in/foo.c:4:16: warning: 'n' is used uninitialized in this function [-Wuninitialized]
 {int n,count=0,temp=n,digit,reverse=0;
                ^~~~