/in/foo.cc: In function 'int main()':
/in/foo.cc:176:7: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
  176 |   gets(word);//只有加这一句，才能正确读证词
      |   ~~~~^~~~~~
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:2:
/usr/include/stdio.h:605:14: note: declared here
  605 | extern char *gets (char *__s) __wur __attribute_deprecated__;
      |              ^~~~
/in/foo.cc:179:21: warning: 'char* gets(char*)' is deprecated [-Wdeprecated-declarations]
  179 |     string temp=gets(word);
      |                 ~~~~^~~~~~
/usr/include/stdio.h:605:14: note: declared here
  605 | extern char *gets (char *__s) __wur __attribute_deprecated__;
      |              ^~~~
/in/foo.cc:170:11: warning: 'index' may be used uninitialized [-Wmaybe-uninitialized]
  170 |   int i,j,index,BadManNum=0;
      |           ^~~~~
/usr/bin/ld: /tmp/ccSzME1e.o: in function `main':
foo.cc:(.text.startup+0xce): warning: the `gets' function is dangerous and should not be used.