foo.cc: In function 'int main()':
foo.cc:95:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   95 |     scanf("%d %d %d",&n,&m,&s);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~
foo.cc:98:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   98 |         scanf("%d %d %lld",&x,&y,&z);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

[Hydro](https://hydro.ac)提供评测服务