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View Compilation Error

0_0_32512041_2566.cpp: In function 'void DisplayInfo(int)':
0_0_32512041_2566.cpp:7:3: error: 'cout' was not declared in this scope
   cout << 'A' << endl;
   ^
0_0_32512041_2566.cpp:7:3: note: suggested alternative:
In file included from 0_0_32512041_2566.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
0_0_32512041_2566.cpp:7:18: error: 'endl' was not declared in this scope
   cout << 'A' << endl;
                  ^
0_0_32512041_2566.cpp:7:18: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
                 from 0_0_32512041_2566.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^
0_0_32512041_2566.cpp:11:3: error: 'cout' was not declared in this scope
   cout << 'B' << endl;
   ^
0_0_32512041_2566.cpp:11:3: note: suggested alternative:
In file included from 0_0_32512041_2566.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
0_0_32512041_2566.cpp:11:18: error: 'endl' was not declared in this scope
   cout << 'B' << endl;
                  ^
0_0_32512041_2566.cpp:11:18: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
                 from 0_0_32512041_2566.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^
0_0_32512041_2566.cpp:15:3: error: 'cout' was not declared in this scope
   cout << 'C' << endl;
   ^
0_0_32512041_2566.cpp:15:3: note: suggested alternative:
In file included from 0_0_32512041_2566.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
0_0_32512041_2566.cpp:15:18: error: 'endl' was not declared in this scope
   cout << 'C' << endl;
                  ^
0_0_32512041_2566.cpp:15:18: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
                 from 0_0_32512041_2566.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^
0_0_32512041_2566.cpp:19:3: error: 'cout' was not declared in this scope
   cout << 'D' << endl;
   ^
0_0_32512041_2566.cpp:19:3: note: suggested alternative:
In file included from 0_0_32512041_2566.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
0_0_32512041_2566.cpp:19:18: error: 'endl' was not declared in this scope
   cout << 'D' << endl;
                  ^
0_0_32512041_2566.cpp:19:18: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
                 from 0_0_32512041_2566.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^
0_0_32512041_2566.cpp:23:3: error: 'cout' was not declared in this scope
   cout << 'E' << endl;
   ^
0_0_32512041_2566.cpp:23:3: note: suggested alternative:
In file included from 0_0_32512041_2566.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
0_0_32512041_2566.cpp:23:18: error: 'endl' was not declared in this scope
   cout << 'E' << endl;
                  ^
0_0_32512041_2566.cpp:23:18: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
                 from 0_0_32512041_2566.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^
0_0_32512041_2566.cpp:27:3: error: 'cout' was not declared in this scope
   cout << "Score is error!" << endl;
   ^
0_0_32512041_2566.cpp:27:3: note: suggested alternative:
In file included from 0_0_32512041_2566.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
0_0_32512041_2566.cpp:27:32: error: 'endl' was not declared in this scope
   cout << "Score is error!" << endl;
                                ^
0_0_32512041_2566.cpp:27:32: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
                 from 0_0_32512041_2566.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^
0_0_32512041_2566.cpp: In function 'int main()':
0_0_32512041_2566.cpp:33:9: error: 'cin' was not declared in this scope
  while (cin >> score)
         ^
0_0_32512041_2566.cpp:33:9: note: suggested alternative:
In file included from 0_0_32512041_2566.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^


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