/in/foo.c: In function 'main':
/in/foo.c:12:8: warning: 'gets' is deprecated [-Wdeprecated-declarations]
        gets(string); 
        ^~~~
In file included from /in/foo.c:2:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/in/foo.c:10:12: warning: variable 'word' set but not used [-Wunused-but-set-variable]
        int word=0;
            ^~~~
/tmp/ccXRoTc4.o: In function `main':
foo.c:(.text.startup+0x8): warning: the `gets' function is dangerous and should not be used.