Rezumat problemă

Detalii

Problema	Grade	Operații I/O	grade.in/grade.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#20871931	Utilizator	Cobzarencu Robert (RobertCobzarencu)
Fișier	grade.cpp	Dimensiune	451 B
Data încărcării	12 Februarie 2020, 21:38	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

grade.cpp: In function 'int main()':
grade.cpp:5:2: error: 'ifstream' was not declared in this scope
  ifstream f("grade.in");

  ^
grade.cpp:5:2: note: suggested alternative:
In file included from /usr/include/c++/4.8/ios:38:0,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from grade.cpp:1:
/usr/include/c++/4.8/iosfwd:157:34: note:   'std::ifstream'
   typedef basic_ifstream<char>   ifstream;
                                  ^
grade.cpp:5:11: error: expected ';' before 'f'
  ifstream f("grade.in");

           ^
grade.cpp:8:2: error: 'cin' was not declared in this scope
  cin>>n;

  ^
grade.cpp:8:2: note: suggested alternative:
In file included from grade.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
grade.cpp:10:9: error: 'f' was not declared in this scope
  while(!f.eof())

         ^
grade.cpp:12:3: error: 'intx' was not declared in this scope
   intx,y;

   ^
grade.cpp:12:8: error: 'y' was not declared in this scope
   intx,y;

        ^
grade.cpp:13:8: error: 'x' was not declared in this scope
   cin>>x>>y;

        ^
grade.cpp:18:2: error: 'f' was not declared in this scope
  f.close();

  ^
grade.cpp:20:2: error: 'ofstream' was not declared in this scope
  ofstream g("grade.out");

  ^
grade.cpp:20:2: note: suggested alternative:
In file included from /usr/include/c++/4.8/ios:38:0,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from grade.cpp:1:
/usr/include/c++/4.8/iosfwd:160:34: note:   'std::ofstream'
   typedef basic_ofstream<char>   ofstream;
                                  ^
grade.cpp:20:11: error: expected ';' before 'g'
  ofstream g("grade.out");

           ^
grade.cpp:34:3: error: 'cout' was not declared in this scope
   cout<<grad<<endl;

   ^
grade.cpp:34:3: note: suggested alternative:
In file included from grade.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
grade.cpp:34:15: error: 'endl' was not declared in this scope
   cout<<grad<<endl;

               ^
grade.cpp:34:15: note: suggested alternative:
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from grade.cpp:1:
/usr/include/c++/4.8/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^
grade.cpp:37:2: error: 'g' was not declared in this scope
  g.close();

  ^

Cum funcționează evaluarea?