Main.cc: In function 'int main()':
Main.cc:6:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |     cin>>N;
      |     ^~~
      |     std::cin
In file included from Main.cc:2:
/usr/include/c++/12.2.1/iostream:60:18: note: 'std::cin' declared here
   60 |   extern istream cin;           /// Linked to standard input
      |                  ^~~