Mã chấm: 268450

Main.cc:1:1: error: stray ‘\’ in program
 \#include 
 ^
Main.cc:1:2: error: stray ‘#’ in program
 \#include 
  ^
Main.cc:1:3: error: ‘include’ does not name a type
 \#include 
   ^~~~~~~
In file included from /usr/include/c++/7/cmath:43:0,
                 from Main.cc:2:
/usr/include/c++/7/ext/type_traits.h:162:35: error: ‘bool __gnu_cxx::__is_null_pointer’ redeclared as different kind of symbol
   __is_null_pointer(std::nullptr_t)
                                   ^
/usr/include/c++/7/ext/type_traits.h:157:5: note: previous declaration ‘template bool __gnu_cxx::__is_null_pointer(_Type)’
     __is_null_pointer(_Type)
     ^~~~~~~~~~~~~~~~~
/usr/include/c++/7/ext/type_traits.h:162:26: error: ‘nullptr_t’ is not a member of ‘std’
   __is_null_pointer(std::nullptr_t)
                          ^~~~~~~~~
Main.cc: In function ‘int main()’:
Main.cc:7:9: error: ‘cin’ was not declared in this scope
         cin>>t;
         ^~~
Main.cc:7:9: note: suggested alternative: ‘sin’
         cin>>t;
         ^~~
         sin
Main.cc:13:13: error: ‘cin’ was not declared in this scope
             cin>>a[i];
             ^~~
Main.cc:13:13: note: suggested alternative: ‘sin’
             cin>>a[i];
             ^~~
             sin
Main.cc:21:17: error: ‘cout’ was not declared in this scope
                 cout<<"YES"<