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>>s;
| ^~~
| std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:75,
from Main.cc:1:
/usr/include/c++/11/iostream:60:18: note: ‘std::cin’ declared here
60 | extern istream cin; /// Linked to standard input
| ^~~
Main.cc:9:5: error: ‘sort’ was not declared in this scope; did you mean ‘std::sort’?
9 | sort(a+1,a+n+1);
| ^~~~
| std::sort
In file included from /usr/include/c++/11/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from Main.cc:1:
/usr/include/c++/11/bits/stl_algo.h:4863:5: note: ‘std::sort’ declared here
4863 | sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
| ^~~~
Main.cc:27:5: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
27 | cout<