foo.cc: In function ‘int main()’:
foo.cc:11:7: error: ‘sync_with’ is not a member of ‘std::ios’ {aka ‘std::basic_ios<char>’}
   11 | ios:: sync_with-stdio(0),cin.tie(0),cout.tie(0);
      |       ^~~~~~~~~
foo.cc:11:17: error: ‘stdio’ was not declared in this scope; did you mean ‘stdin’?
   11 | ios:: sync_with-stdio(0),cin.tie(0),cout.tie(0);
      |                 ^~~~~
      |                 stdin