Rezumat problemă

GradePQ

#4960

Se dă un graf neorientat cu n noduri și două numere naturale p q. Să se determine nodurile din graf care au gradul între p și q.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Teoria Grafurilor Probleme elementare cu grafuri neorientate

Rezolvă

Detalii

Problema	GradePQ	Operații I/O	gradepq.in/gradepq.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#63504526	Utilizator	Alexandra Buzlea (alexandra_buzlea)
Fișier	gradepq.cpp	Dimensiune	617 B
Data încărcării	06 Martie 2026, 08:48	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

gradepq.cpp:4:13: error: variable 'std::ifstream cin' has initializer but incomplete type
 ifstream cin("gradepq.in");

             ^
gradepq.cpp:5:14: error: variable 'std::ofstream cout' has initializer but incomplete type
 ofstream cout("gradepq.out");

              ^
gradepq.cpp: In function 'int main()':
gradepq.cpp:11:5: error: reference to 'cin' is ambiguous
     cin>>n>>p>>q;

     ^
gradepq.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("gradepq.in");

          ^
In file included from gradepq.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
gradepq.cpp:12:11: error: reference to 'cin' is ambiguous
     while(cin>>x>>y)

           ^
gradepq.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("gradepq.in");

          ^
In file included from gradepq.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
gradepq.cpp:18:31: error: 'j' was not declared in this scope
         if(a[i][0]<=q && a[i][j]>=p)

                               ^
gradepq.cpp:22:9: error: reference to 'cout' is ambiguous
         cout<<"nu exista";

         ^
gradepq.cpp:5:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("gradepq.out");

          ^
In file included from gradepq.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
gradepq.cpp:25:9: error: reference to 'cout' is ambiguous
         cout<<k<<'\n';

         ^
gradepq.cpp:5:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("gradepq.out");

          ^
In file included from gradepq.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
gradepq.cpp:28:17: error: reference to 'cout' is ambiguous
                 cout<<i<<" ";

                 ^
gradepq.cpp:5:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("gradepq.out");

          ^
In file included from gradepq.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^

Cum funcționează evaluarea?