#3739
cafea
Algorel a primit de la părinţi o sumă de bani, S
, şi o plasă în care încap K
grame de cafea. Algorel trebuie să meargă la piaţă şi să cumpere suficientă cafea încât să umple plasa. Pe de altă parte, părinţii nu îi cer înapoi restul. Dacă va reuşi să umple plasa, va putea păstra diferenţa de bani dintre suma primită S
şi costul total al cafelei achiziţionate. Dacă nu va reuşi să umple plasa, atunci nu va rămâne cu niciun ban. Ajutaţi-l pe Algorel să rămână cu o sumă cât mai mare de bani, scriind un program care face acest calcul pe baza datelor corespunzătoare comercianţilor.
Olimpiada de Informatică 2014, etapa locală
Problema | cafea | Operații I/O |
cafea.in /cafea.out
|
---|---|---|---|
Limita timp | 0.3 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
Id soluție | #49533039 | Utilizator | |
Fișier | cafea.cpp | Dimensiune | 1021 B |
Data încărcării | 06 Martie 2024, 09:53 | Scor / rezultat | Eroare de compilare |
cafea.cpp:4:41: error: expected ';' at end of member declaration typedef struct{int cant;int cost;double pret}cafea; ^ cafea.cpp: In function 'int main()': cafea.cpp:48:7: error: no match for 'operator>>' (operand types are 'std::ofstream {aka std::basic_ofstream<char>}' and 'int') fo>>s-achitat; ^ cafea.cpp:48:7: note: candidates are: In file included from /usr/include/c++/4.8/string:53:0, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/fstream:38, from cafea.cpp:1: /usr/include/c++/4.8/bits/basic_string.tcc:996:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::basic_string<_CharT, _Traits, _Alloc>&) operator>>(basic_istream<_CharT, _Traits>& __in, ^ /usr/include/c++/4.8/bits/basic_string.tcc:996:5: note: template argument deduction/substitution failed: cafea.cpp:48:11: note: 'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' fo>>s-achitat; ^ In file included from /usr/include/c++/4.8/istream:882:0, from /usr/include/c++/4.8/fstream:38, from cafea.cpp:1: /usr/include/c++/4.8/bits/istream.tcc:955:5: note: template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*) operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s) ^ /usr/include/c++/4.8/bits/istream.tcc:955:5: note: template argument deduction/substitution failed: cafea.cpp:48:11: note: 'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' fo>>s-achitat; ^ In file included from /usr/include/c++/4.8/istream:882:0, from /usr/include/c++/4.8/fstream:38, from cafea.cpp:1: /usr/include/c++/4.8/bits/istream.tcc:923:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&) operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) ^ /usr/include/c++/4.8/bits/istream.tcc:923:5: note: template argument deduction/substitution failed: cafea.cpp:48:11: note: 'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' fo>>s-achitat; ^ In file included from /usr/include/c++/4.8/fstream:38:0, from cafea.cpp:1: /usr/include/c++/4.8/istream:727:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&) operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c) ^ /usr/include/c++/4.8/istream:727:5: note: template argument deduction/substitution failed: cafea.cpp:48:11: note: 'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<char, _Traits>' fo>>s-achitat; ^ In file included from /usr/include/c++/4.8/fstream:38:0, from cafea.cpp:1: /usr/include/c++/4.8/istream:732:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&) operator>>(basic_istream<char, _Traits>& __in, signed char& __c) ^ /usr/include/c++/4.8/istream:732:5: note: template argument deduction/substitution failed: cafea.cpp:48:11: note: 'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<char, _Traits>' fo>>s-achitat; ^ In file included from /usr/include/c++/4.8/fstream:38:0, from cafea.cpp:1: /usr/include/c++/4.8/istream:774:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*) operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s) ^ /usr/include/c++/4.8/istream:774:5: note: template argument deduction/substitution failed: cafea.cpp:48:11: note: 'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<char, _Traits>' fo>>s-achitat; ^ In file included from /usr/include/c++/4.8/fstream:38:0, from cafea.cpp:1: /usr/include/c++/4.8/istream:779:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*) operator>>(basic_istream<char, _Traits>& __in, signed char* __s) ^ /usr/include/c++/4.8/istream:779:5: note: template argument deduction/substitution failed: cafea.cpp:48:11: note: 'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<char, _Traits>' fo>>s-achitat; ^ In file included from /usr/include/c++/4.8/fstream:38:0, from cafea.cpp:1: /usr/include/c++/4.8/istream:872:5: note: template<class _CharT, class _Traits, class _Tp> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x) ^ /usr/include/c++/4.8/istream:872:5: note: template argument deduction/substitution failed: cafea.cpp:48:11: note: 'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' fo>>s-achitat; ^ cafea.cpp:48:10: warning: suggest parentheses around '-' inside '>>' [-Wparentheses] fo>>s-achitat; ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema cafea 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.