#3796
qtsume
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]
.
Problema | qtsume | Operații I/O |
qtsume.in /qtsume.out
|
---|---|---|---|
Limita timp | 0.2 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
Id soluție | #49283250 | Utilizator | |
Fișier | qtsume.cpp | Dimensiune | 740 B |
Data încărcării | 23 Februarie 2024, 19:38 | Scor / rezultat | Eroare de compilare |
qtsume.cpp:5:13: error: variable 'std::ifstream cin' has initializer but incomplete type ifstream cin("qtsume.in"); ^ qtsume.cpp:6:14: error: variable 'std::ofstream cout' has initializer but incomplete type ofstream cout("qtsume.out"); ^ qtsume.cpp: In function 'int main()': qtsume.cpp:13:5: error: reference to 'cin' is ambiguous cin.tie(0); ^ qtsume.cpp:5:10: note: candidates are: <typeprefixerror>cin ifstream cin("qtsume.in"); ^ In file included from qtsume.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ qtsume.cpp:16:5: error: reference to 'cin' is ambiguous cin >> n; ^ qtsume.cpp:5:10: note: candidates are: <typeprefixerror>cin ifstream cin("qtsume.in"); ^ In file included from qtsume.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ qtsume.cpp:18:9: error: reference to 'cin' is ambiguous cin >> a[i]; ^ qtsume.cpp:5:10: note: candidates are: <typeprefixerror>cin ifstream cin("qtsume.in"); ^ In file included from qtsume.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ qtsume.cpp:30:5: error: reference to 'cin' is ambiguous cin >> q; ^ qtsume.cpp:5:10: note: candidates are: <typeprefixerror>cin ifstream cin("qtsume.in"); ^ In file included from qtsume.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ qtsume.cpp:33:9: error: reference to 'cin' is ambiguous cin >> x >> y; ^ qtsume.cpp:5:10: note: candidates are: <typeprefixerror>cin ifstream cin("qtsume.in"); ^ In file included from qtsume.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^ qtsume.cpp:35:9: error: reference to 'cout' is ambiguous cout << len * pre[y] - pre2[y - 1] + ((x - 2 >= 0) ? pre2[x - 2] : 0) << '\n'; ^ qtsume.cpp:6:10: note: candidates are: <typeprefixerror>cout ofstream cout("qtsume.out"); ^ In file included from qtsume.cpp:1:0: /usr/include/c++/4.8/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema qtsume face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
Suma punctajelor acordate pe testele utilizate pentru verificare este 100. Astfel, soluția ta poate obține cel mult 100 de puncte, caz în care se poate considera corectă.