#3164
qclasa
Se dau n
, reprezentând numărul de elevi apoi, pe câte un rând, datele fiecărui elev: codul (număr natural de maxim 4
cifre), media la informatică (număr natural de la 1
la 10
) și numărul de absențe. Definiți un tip structură pentru a putea memora datele unui elev și rezolvați cerințele:
a) memorați datele tuturor elevilor într-un vector de structuri de tipul definit;
b) afișați numărul de elevi cu media 10
c) afișați media clasei (se va afișa doar partea întreagă a ei).
d) afișați primii doi elevi după absențe (elevii cu cele mai multe absențe). Dacă sunt mai mulți elevi cu același număr de absențe se afișează în ordine crescătoare a codului. Dacă sunt mai mult de doi elevi număr maxim de absențe se afișează doar doi.
Problema | qclasa | Operații I/O |
![]() qclasa.in /qclasa.out
|
---|---|---|---|
Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
Id soluție | #28237944 | Utilizator | |
Fișier | qclasa.cpp | Dimensiune | 813 B |
Data încărcării | 26 Februarie 2021, 14:56 | Scor / rezultat | Eroare de compilare |
qclasa.cpp: In function 'int main()': qclasa.cpp:29:12: error: no match for 'operator<<' (operand types are 'std::istream {aka std::basic_istream<char>}' and 'int') cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ qclasa.cpp:29:12: 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 qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/ostream:612:0, from /usr/include/c++/4.8/iostream:39, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from qclasa.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: qclasa.cpp:29:19: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<v[i].cod<<v[i].nrabs<<v[i].media; ^ qclasa.cpp:31:5: error: 'k' was not declared in this scope k=0; ^ qclasa.cpp:38:4: error: 'md' was not declared in this scope md=0; ^ qclasa.cpp:40:8: error: 'med' was not declared in this scope med=med+v[i].media; ^ qclasa.cpp:41:4: error: 'med' was not declared in this scope med=med/n; ^ qclasa.cpp:46:24: error: 'sort' was not declared in this scope sort(v+1,v+n+1,comp); ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema qclasa 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.