/in/foo.c: In function 'main':
/in/foo.c:11:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
  gets(line);
  ^~~~
In file included from /in/foo.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/in/foo.c:13:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
  gets(word);
  ^~~~
In file included from /in/foo.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/in/foo.c:8:9: warning: unused variable 'k' [-Wunused-variable]
  int n, k;
         ^
/in/foo.c:8:6: warning: unused variable 'n' [-Wunused-variable]
  int n, k;
      ^
/in/foo.c: In function 'isPresent':
/in/foo.c:21:12: warning: unused variable 'status' [-Wunused-variable]
  int i, j, status, n, m;
            ^~~~~~
/in/foo.c:21:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j, status, n, m;
         ^
/tmp/ccfw9pZQ.o: In function `main':
foo.c:(.text.startup+0x1e): warning: the `gets' function is dangerous and should not be used.