foo.c:3:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning(disable:4996)
 
foo.c: In function 'main':
foo.c:9:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(s), scanf("%c", &ss);
     ^~~~
In file included from foo.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/tmp/cc9VkrOH.o: In function `main':
foo.c:(.text.startup+0x14): warning: the `gets' function is dangerous and should not be used.

自豪的采用jd5进行评测(github.com/masnn/jd5)