Rezumat problemă

qtsume

#3796

Se dă un vector A cu N numere naturale. Pentru Q întrebări de forma (x, y) aflați rezultatul sumei A[x] + 2 * A[x + 1] + ... + (y - x + 1) * A[y].

Fișiere Popa Bogdan Ioan (PopaBogdan) Bogdan Ioan Popa dificilă

Clasa 9 Tablouri unidimensionale (vectori) Probleme cu secvențe Sume parțiale

Rezolvă

Detalii

Problema	qtsume	Operații I/O	qtsume.in/qtsume.out
Limita timp	0.2 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#58146161	Utilizator	Stanciu Francesca (FrancescaStanciu)
Fișier	qtsume.cpp	Dimensiune	898 B
Data încărcării	16 Mai 2025, 11:36	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

qtsume.cpp:18:13: error: variable 'std::ifstream cin' has initializer but incomplete type
 ifstream cin("qtsume.in");

             ^
qtsume.cpp:19:14: error: variable 'std::ofstream cout' has initializer but incomplete type
 ofstream cout("qtsume.out");

              ^
qtsume.cpp: In function 'int main()':
qtsume.cpp:26:5: error: reference to 'cin' is ambiguous
     cin>>n;

     ^
qtsume.cpp:18:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("qtsume.in");

          ^
In file included from qtsume.cpp:15:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
qtsume.cpp:29:9: error: reference to 'cin' is ambiguous
         cin>>x;

         ^
qtsume.cpp:18:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("qtsume.in");

          ^
In file included from qtsume.cpp:15:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
qtsume.cpp:33:5: error: reference to 'cin' is ambiguous
     cin>>m;

     ^
qtsume.cpp:18:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("qtsume.in");

          ^
In file included from qtsume.cpp:15:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
qtsume.cpp:36:9: error: reference to 'cin' is ambiguous
         cin>>st>>dr;

         ^
qtsume.cpp:18:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("qtsume.in");

          ^
In file included from qtsume.cpp:15:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
qtsume.cpp:37:9: error: reference to 'cout' is ambiguous
         cout<<B[dr]-B[st-1]-(st-1)*(A[dr]-A[st-1])<<'\n';

         ^
qtsume.cpp:19:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("qtsume.out");

          ^
In file included from qtsume.cpp:15:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^

Cum funcționează evaluarea?