Mã chấm: 20108

Main.cc:1:1: error: ‘include’ does not name a type; did you mean ‘__has_include’?
 include
 ^~~~~~~
 __has_include
Main.cc: In function ‘int main()’:
Main.cc:11:1: error: ‘cin’ was not declared in this scope
 cin>>n;
 ^~~
Main.cc:11:1: note: suggested alternative: ‘main’
 cin>>n;
 ^~~
 main
Main.cc:13:1: error: ‘t’ was not declared in this scope
 t=0;
 ^
Main.cc:19:6: error: ‘x’ was not declared in this scope
 cin>>x;
      ^
Main.cc:25:1: error: ‘cout’ was not declared in this scope
 cout<