foo.c: In function 'ms':
foo.c:15:15: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   15 |   if(a[i]>='a'&&a[i]<='z'-k||a[i]>='A'&&a[i]<='Z'-k)
      |      ~~~~~~~~~^~~~~~~~~~~~~
foo.c:18:18: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   18 |    if(a[i]>='z'-k&&a[i]<='z'+k||a[i]>='Z'-k&&a[i]<='Z'+k)
      |       ~~~~~~~~~~~^~~~~~~~~~~~~
foo.c: In function 'main':
foo.c:26:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
   26 |  char a[10000];gets(a);
      |  ^~~~
In file included from /usr/include/stdio.h:867,
                 from foo.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:235:1: note: declared here
  235 | gets (char *__str)
      | ^~~~
foo.c: In function 'ms':
foo.c:22:1: warning: control reaches end of non-void function [-Wreturn-type]
   22 | }
      | ^
foo.c: In function 'main':
foo.c:26:16: warning: ignoring return value of 'gets', declared with attribute warn_unused_result [-Wunused-result]
   26 |  char a[10000];gets(a);
      |                ^~~~~~~
foo.c:27:8: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   27 |  int k;scanf("%d",&k);
      |        ^~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccAhl8XT.o: in function `main':
foo.c:(.text.startup+0x45): warning: the `gets' function is dangerous and should not be used.

[Hydro](https://hydro.ac)提供评测服务