Main.cc:2:1: error: ‘usinG’ does not name a type; did you mean ‘uint’? usinG namespace std; ^~~~~ uint Main.cc: In function ‘int main()’: Main.cc:4:5: error: ‘cout’ was not declared in this scope cout<<46<<" "<<86; ^~~~ Main.cc:4:5: note: suggested alternative: In file included from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:75:0, from Main.cc:1: /usr/include/c++/7/iostream:61:18: note: ‘std::cout’ extern ostream cout; /// Linked to standard output ^~~~