/in/foo.cc: In function 'int main()':
/in/foo.cc:10:13: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
   10 |         gets(s);
      |         ~~~~^~~
In file included from /usr/include/c++/12/cstdio:42,
                 from /usr/include/c++/12/ext/string_conversions.h:43,
                 from /usr/include/c++/12/bits/basic_string.h:3960,
                 from /usr/include/c++/12/string:53,
                 from /usr/include/c++/12/bits/locale_classes.h:40,
                 from /usr/include/c++/12/bits/ios_base.h:41,
                 from /usr/include/c++/12/ios:42,
                 from /usr/include/c++/12/ostream:38,
                 from /usr/include/c++/12/iostream:39,
                 from /in/foo.cc:1:
/usr/include/stdio.h:605:14: note: declared here
  605 | extern char *gets (char *__s) __wur __attribute_deprecated__;
      |              ^~~~
/in/foo.cc:12:22: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare]
   12 |         for(int i=0;i<strlen(s);i++)
      |                     ~^~~~~~~~~~
/usr/bin/ld: /tmp/cctjM6YS.o: in function `main':
foo.cc:(.text.startup+0x37): warning: the `gets' function is dangerous and should not be used.