#674
Se dă un arbore binar care conține valori numere naturale. Se dau k noduri din arbore și se cere determinarea, pentru fiecare nod, a numărului de noduri din subarborele cu rădăcina în acel nod.
Notă: pentru reprezentarea arborelui se recomandă alocarea statică, folosind tablouri.
| Problema | CountSub | Operații I/O |
countsub.in/countsub.out
|
|---|---|---|---|
| Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
| Id soluție | #64397858 | Utilizator | |
| Fișier | countsub.cpp | Dimensiune | 737 B |
| Data încărcării | 05 Mai 2026, 10:05 | Scor/rezultat | Eroare de compilare |
countsub.cpp:4:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type 4 | ifstream cin("countsub.in"); | ^ countsub.cpp:5:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type 5 | ofstream cout("countsub.out"); | ^ countsub.cpp: In function ‘int main()’: countsub.cpp:16:5: error: reference to ‘cin’ is ambiguous 16 | cin >> n; | ^~~ In file included from countsub.cpp:1: /usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’ 62 | extern istream cin; ///< Linked to standard input | ^~~ countsub.cpp:4:10: note: ‘<typeprefixerror>cin’ 4 | ifstream cin("countsub.in"); | ^~~ countsub.cpp:18:9: error: reference to ‘cin’ is ambiguous 18 | cin >> x >> st[i] >> dr[i]; | ^~~ /usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’ 62 | extern istream cin; ///< Linked to standard input | ^~~ countsub.cpp:4:10: note: ‘<typeprefixerror>cin’ 4 | ifstream cin("countsub.in"); | ^~~ countsub.cpp:23:5: error: reference to ‘cin’ is ambiguous 23 | cin >> k; | ^~~ /usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’ 62 | extern istream cin; ///< Linked to standard input | ^~~ countsub.cpp:4:10: note: ‘<typeprefixerror>cin’ 4 | ifstream cin("countsub.in"); | ^~~ countsub.cpp:25:9: error: reference to ‘cin’ is ambiguous 25 | cin >> p[i]; | ^~~ /usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’ 62 | extern istream cin; ///< Linked to standard input | ^~~ countsub.cpp:4:10: note: ‘<typeprefixerror>cin’ 4 | ifstream cin("countsub.in"); | ^~~ countsub.cpp:30:9: error: reference to ‘cout’ is ambiguous 30 | cout << s[p[i]] << '\n'; | ^~~~ /usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’ 63 | extern ostream cout; ///< Linked to standard output | ^~~~ countsub.cpp:5:10: note: ‘<typeprefixerror>cout’ 5 | ofstream cout("countsub.out"); | ^~~~
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema CountSub 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.