Rezumat problemă

credite

#2150

Se dă o listă de probleme, numărul de credite al fiecărei probleme precum și timpul limită de rezolvare al fiecărei probleme. Scrieți un algoritm care determină numărul maxim de credite pe care le poate obține Maria prin rezolvarea problemelor din listă.

Concursul Interjudețean de Informatică "Spiru Haret" Targu Jiu, Ed. II

Fișiere Prof C.N. (flaviusboian) Cristina Ularu concurs

Clasa 11 Metoda Greedy Probleme diverse cu metoda Greedy

Rezolvă

Detalii

Problema	credite	Operații I/O	credite.in/credite.out
Limita timp	0.1 secunde	Limita memorie	Total: 32 MB / Stivă 8 MB
Id soluție	#63892727	Utilizator	Darius Darius (balanel)
Fișier	credite.cpp	Dimensiune	520 B
Data încărcării	25 Martie 2026, 08:20	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

credite.cpp: In function 'int main()':
credite.cpp:19:18: error: no match for 'operator<<' (operand types are 'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' and 'int')
         f>>a[i].c<<a[i].t;

                  ^
credite.cpp:19:18: note: candidates are:
In file included from /usr/include/c++/4.8/string:52:0,
                 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/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from credite.cpp:1:
/usr/include/c++/4.8/bits/basic_string.h:2753:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&)
     operator<<(basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2753:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:471:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT)
     operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
     ^
/usr/include/c++/4.8/ostream:471:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:476:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char)
     operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
     ^
/usr/include/c++/4.8/ostream:476:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:482:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char)
     operator<<(basic_ostream<char, _Traits>& __out, char __c)
     ^
/usr/include/c++/4.8/ostream:482:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:488:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, signed char)
     operator<<(basic_ostream<char, _Traits>& __out, signed char __c)
     ^
/usr/include/c++/4.8/ostream:488:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:493:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, unsigned char)
     operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c)
     ^
/usr/include/c++/4.8/ostream:493:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:513:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*)
     operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
     ^
/usr/include/c++/4.8/ostream:513:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/ostream:612:0,
                 from /usr/include/c++/4.8/iostream:39,
                 from credite.cpp:1:
/usr/include/c++/4.8/bits/ostream.tcc:321:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const char*)
     operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s)
     ^
/usr/include/c++/4.8/bits/ostream.tcc:321:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:530:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char*)
     operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
     ^
/usr/include/c++/4.8/ostream:530:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:543:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const signed char*)
     operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s)
     ^
/usr/include/c++/4.8/ostream:543:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:548:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const unsigned char*)
     operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s)
     ^
/usr/include/c++/4.8/ostream:548:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from credite.cpp:1:
/usr/include/c++/4.8/ostream:602:5: note: template<class _CharT, class _Traits, class _Tp> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&&, const _Tp&)
     operator<<(basic_ostream<_CharT, _Traits>&& __os, const _Tp& __x)
     ^
/usr/include/c++/4.8/ostream:602:5: note:   template argument deduction/substitution failed:
credite.cpp:19:25: note:   'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f>>a[i].c<<a[i].t;

                         ^
credite.cpp:22:41: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
         if(a[i].t>a[j].t||a[i].t==a[j].t&&a[i].c<a[j].c)

                                         ^

Cum funcționează evaluarea?