foo.c: In function 'Invert':
foo.c:57:26: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'int *' [-Wformat=]
   57 |                 printf("%x", t);
      |                         ~^   ~
      |                          |   |
      |                          |   int *
      |                          unsigned int
      |                         %ls

[Hydro](https://hydro.ac)提供评测服务