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Detalii evaluare #51168459
Rezumat problemă
#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.
- Fișiere
-
Marius Nicoli (mariusn)
- Nicoli Marius
- ușoară
Detalii
| Problema | qclasa | Operații I/O |
qclasa.in/qclasa.out
|
|---|---|---|---|
| Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
| Id soluție | #51168459 | Utilizator |
Iurian Bogdan (Boga)
|
| Fișier | qclasa.cpp | Dimensiune | 768 B |
| Data încărcării | 28 Mai 2024, 09:48 | Scor / rezultat | Eroare de compilare |
Evaluare
Mesaj compilare
qclasa.cpp: In function 'void operator>>(std::ostream&, clasa)': qclasa.cpp:16:8: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'int') out>>a.cod>>a.media>>a.ab; ^ qclasa.cpp:16:8: note: candidates are: qclasa.cpp:14:6: note: void operator>>(std::ostream&, clasa) void operator>>(ostream& out, clasa a) ^ qclasa.cpp:14:6: note: no known conversion for argument 2 from 'int' to 'clasa' In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0, from qclasa.cpp:1: /usr/include/c++/4.8/valarray:1176:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__shift_right, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__shift_right, _Tp>::result_type> std::operator>>(const _Tp&, const std::valarray<_Tp>&) _DEFINE_BINARY_OPERATOR(>>, __shift_right) ^ /usr/include/c++/4.8/valarray:1176:1: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: mismatched types 'const std::valarray<_Tp>' and 'int' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0, from qclasa.cpp:1: /usr/include/c++/4.8/valarray:1176:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__shift_right, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__shift_right, _Tp>::result_type> std::operator>>(const std::valarray<_Tp>&, const _Tp&) _DEFINE_BINARY_OPERATOR(>>, __shift_right) ^ /usr/include/c++/4.8/valarray:1176:1: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::valarray<_Tp>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0, from qclasa.cpp:1: /usr/include/c++/4.8/valarray:1176:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__shift_right, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__shift_right, _Tp>::result_type> std::operator>>(const std::valarray<_Tp>&, const std::valarray<_Tp>&) _DEFINE_BINARY_OPERATOR(>>, __shift_right) ^ /usr/include/c++/4.8/valarray:1176:1: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::valarray<_Tp>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&) _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right) ^ /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::valarray<typename _Dom::value_type>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&) _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right) ^ /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&) _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right) ^ /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&) _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right) ^ /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template<class _Dom1, class _Dom2> std::_Expr<std::_BinClos<std::__shift_right, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&) _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right) ^ /usr/include/c++/4.8/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:71:0, from qclasa.cpp:1: /usr/include/c++/4.8/iomanip:261:5: note: template<class _CharT, class _Traits, class _MoneyT> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Get_money<_MoneyT>) operator>>(basic_istream<_CharT, _Traits>& __is, _Get_money<_MoneyT> __f) ^ /usr/include/c++/4.8/iomanip:261:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:71:0, from qclasa.cpp:1: /usr/include/c++/4.8/iomanip:227:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setw) operator>>(basic_istream<_CharT, _Traits>& __is, _Setw __f) ^ /usr/include/c++/4.8/iomanip:227:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:71:0, from qclasa.cpp:1: /usr/include/c++/4.8/iomanip:197:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setprecision) operator>>(basic_istream<_CharT, _Traits>& __is, _Setprecision __f) ^ /usr/include/c++/4.8/iomanip:197:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:71:0, from qclasa.cpp:1: /usr/include/c++/4.8/iomanip:167:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setfill<_CharT>) operator>>(basic_istream<_CharT, _Traits>& __is, _Setfill<_CharT> __f) ^ /usr/include/c++/4.8/iomanip:167:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:71:0, from qclasa.cpp:1: /usr/include/c++/4.8/iomanip:129:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setbase) operator>>(basic_istream<_CharT, _Traits>& __is, _Setbase __f) ^ /usr/include/c++/4.8/iomanip:129:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:71:0, from qclasa.cpp:1: /usr/include/c++/4.8/iomanip:98:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setiosflags) operator>>(basic_istream<_CharT, _Traits>& __is, _Setiosflags __f) ^ /usr/include/c++/4.8/iomanip:98:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:71:0, from qclasa.cpp:1: /usr/include/c++/4.8/iomanip:68:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Resetiosflags) operator>>(basic_istream<_CharT, _Traits>& __is, _Resetiosflags __f) ^ /usr/include/c++/4.8/iomanip:68:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:65:0, from qclasa.cpp:1: /usr/include/c++/4.8/bitset:1453:5: note: template<class _CharT, class _Traits, unsigned int _Nb> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::bitset<_Nb>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x) ^ /usr/include/c++/4.8/bitset:1453:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:3344:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::piecewise_linear_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:3344:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:3128:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::piecewise_constant_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:3128:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2913:5: note: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::discrete_distribution<_IntType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2913:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2451:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::student_t_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2451:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2377:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::fisher_f_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2377:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2212:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::chi_squared_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2212:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2140:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::lognormal_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2140:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:1845:5: note: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::binomial_distribution<_IntType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:1845:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:1577:5: note: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::poisson_distribution<_IntType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:1577:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:1372:5: note: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::negative_binomial_distribution<_IntType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:1372:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:856:5: note: template<class _RandomNumberEngine, unsigned int __k, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::shuffle_order_engine<_RandomNumberEngine, __k>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:856:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:725:5: note: template<class _RandomNumberEngine, unsigned int __p, unsigned int __r, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::discard_block_engine<_RandomNumberEngine, __p, __r>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:725:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:657:5: note: template<class _UIntType, unsigned int __w, unsigned int __s, unsigned int __r, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::subtract_with_carry_engine<_UIntType, __w, __s, __r>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:657:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:178:5: note: template<class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::linear_congruential_engine<_UIntType, __a, __c, __m>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:178:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2774:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::extreme_value_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2774:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2698:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::weibull_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2698:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:1906:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::exponential_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:1906:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2621:5: note: template<class _RealType1, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::gamma_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2621:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:1256:5: note: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::geometric_distribution<_IntType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:1256:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2077:5: note: template<class _RealType1, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::normal_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2077:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:50:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.h:3759:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::bernoulli_distribution&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.h:3759:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:2299:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::cauchy_distribution<_RealType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:2299:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:1112:5: note: template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::uniform_real_distribution<_IntType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:1112:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:1050:5: note: template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::uniform_int_distribution<_IntType>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:1050:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/random.tcc:505:5: note: template<class _UIntType1, unsigned int __w1, unsigned int __n1, unsigned int __m1, unsigned int __r1, _UIntType1 __a1, unsigned int __u1, _UIntType1 __d1, unsigned int __s1, _UIntType1 __b1, unsigned int __t1, _UIntType1 __c1, unsigned int __l1, _UIntType1 __f1, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>&) operator>>(std::basic_istream<_CharT, _Traits>& __is, ^ /usr/include/c++/4.8/bits/random.tcc:505:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/ccomplex:38:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/complex:491:5: note: template<class _Tp, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::complex<_Tp>&) operator>>(basic_istream<_CharT, _Traits>& __is, complex<_Tp>& __x) ^ /usr/include/c++/4.8/complex:491:5: note: template argument deduction/substitution failed: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/sstream:38:0, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.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: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/sstream:38:0, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.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: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/sstream:38:0, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.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: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/sstream:38:0, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.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: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/sstream:38:0, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.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: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/istream:882:0, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.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: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ In file included from /usr/include/c++/4.8/istream:882:0, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.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: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ 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/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.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: qclasa.cpp:16:12: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' out>>a.cod>>a.media>>a.ab; ^ qclasa.cpp: In function 'int main()': qclasa.cpp:36:14: error: cannot bind 'std::basic_istream<char>' lvalue to 'std::basic_istream<char>&&' fin>>i; ^ In file included from /usr/include/c++/4.8/sstream:38:0, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/istream:872:5: error: initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = clasa]' operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x) ^ qclasa.cpp:37:14: error: 'struct clasa' has no member named 'medie' if(i.medie == 10) ^ qclasa.cpp:39:18: error: 'struct clasa' has no member named 'medie' sum += i.medie; ^ qclasa.cpp:46:18: error: cannot bind 'std::basic_ostream<char>' lvalue to 'std::basic_ostream<char>&&' fout<<v.back()<<'\n'; ^ In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/ostream:602:5: error: initializing argument 1 of 'std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&&, const _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = clasa]' operator<<(basic_ostream<_CharT, _Traits>&& __os, const _Tp& __x) ^ qclasa.cpp:47:19: error: no match for 'operator-' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' and 'int') fout<<v.back()-1<<'\n'; ^ qclasa.cpp:47:19: note: candidates are: In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:327:5: note: template<class _Iterator> typename std::reverse_iterator<_Iterator>::difference_type std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&) operator-(const reverse_iterator<_Iterator>& __x, ^ /usr/include/c++/4.8/bits/stl_iterator.h:327:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::reverse_iterator<_Iterator>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:379:5: note: template<class _IteratorL, class _IteratorR> decltype ((__y.base() - __x.base())) std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&) operator-(const reverse_iterator<_IteratorL>& __x, ^ /usr/include/c++/4.8/bits/stl_iterator.h:379:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::reverse_iterator<_Iterator>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:1104:5: note: template<class _IteratorL, class _IteratorR> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_Iterator>&, const std::move_iterator<_IteratorR>&) operator-(const move_iterator<_IteratorL>& __x, ^ /usr/include/c++/4.8/bits/stl_iterator.h:1104:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::move_iterator<_Iterator>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:1111:5: note: template<class _Iterator> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&) operator-(const move_iterator<_Iterator>& __x, ^ /usr/include/c++/4.8/bits/stl_iterator.h:1111:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::move_iterator<_Iterator>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/ccomplex:38:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/complex:354:5: note: template<class _Tp> std::complex<_Tp> std::operator-(const std::complex<_Tp>&, const std::complex<_Tp>&) operator-(const complex<_Tp>& __x, const complex<_Tp>& __y) ^ /usr/include/c++/4.8/complex:354:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::complex<_Tp>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/ccomplex:38:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/complex:363:5: note: template<class _Tp> std::complex<_Tp> std::operator-(const std::complex<_Tp>&, const _Tp&) operator-(const complex<_Tp>& __x, const _Tp& __y) ^ /usr/include/c++/4.8/complex:363:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::complex<_Tp>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/ccomplex:38:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/complex:372:5: note: template<class _Tp> std::complex<_Tp> std::operator-(const _Tp&, const std::complex<_Tp>&) operator-(const _Tp& __x, const complex<_Tp>& __y) ^ /usr/include/c++/4.8/complex:372:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: mismatched types 'const std::complex<_Tp>' and 'int' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/ccomplex:38:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from qclasa.cpp:1: /usr/include/c++/4.8/complex:449:5: note: template<class _Tp> std::complex<_Tp> std::operator-(const std::complex<_Tp>&) operator-(const complex<_Tp>& __x) ^ /usr/include/c++/4.8/complex:449:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::complex<_Tp>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/vector:65:0, from /usr/include/c++/4.8/bits/random.h:34, from /usr/include/c++/4.8/random:50, from /usr/include/c++/4.8/bits/stl_algo.h:65, from /usr/include/c++/4.8/algorithm:62, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from qclasa.cpp:1: /usr/include/c++/4.8/bits/stl_bvector.h:208:3: note: std::ptrdiff_t std::operator-(const std::_Bit_iterator_base&, const std::_Bit_iterator_base&) operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) ^ /usr/include/c++/4.8/bits/stl_bvector.h:208:3: note: no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' to 'const std::_Bit_iterator_base&' In file included from /usr/include/c++/4.8/deque:64:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:67, from qclasa.cpp:1: /usr/include/c++/4.8/bits/stl_deque.h:331:5: note: template<class _Tp, class _Ref, class _Ptr> typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&) operator-(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x, ^ /usr/include/c++/4.8/bits/stl_deque.h:331:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/deque:64:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:67, from qclasa.cpp:1: /usr/include/c++/4.8/bits/stl_deque.h:343:5: note: template<class _Tp, class _RefL, class _PtrL, class _RefR, class _PtrR> typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&) operator-(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x, ^ /usr/include/c++/4.8/bits/stl_deque.h:343:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom1, class _Dom2> std::_Expr<std::_BinClos<std::__minus, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&) _DEFINE_EXPR_BINARY_OPERATOR(-, __minus) ^ /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__minus, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&) _DEFINE_EXPR_BINARY_OPERATOR(-, __minus) ^ /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__minus, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&) _DEFINE_EXPR_BINARY_OPERATOR(-, __minus) ^ /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__minus, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&) _DEFINE_EXPR_BINARY_OPERATOR(-, __minus) ^ /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/c++/4.8/valarray:587:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94, from qclasa.cpp:1: /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__minus, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__minus, typename _Dom1::value_type>::result_type> std::operator-(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&) _DEFINE_EXPR_BINARY_OPERATOR(-, __minus) ^ /usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::valarray<typename _Dom::value_type>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0, from qclasa.cpp:1: /usr/include/c++/4.8/valarray:1168:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__minus, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__minus, _Tp>::result_type> std::operator-(const std::valarray<_Tp>&, const std::valarray<_Tp>&) _DEFINE_BINARY_OPERATOR(-, __minus) ^ /usr/include/c++/4.8/valarray:1168:1: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::valarray<_Tp>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0, from qclasa.cpp:1: /usr/include/c++/4.8/valarray:1168:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__minus, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__minus, _Tp>::result_type> std::operator-(const std::valarray<_Tp>&, const _Tp&) _DEFINE_BINARY_OPERATOR(-, __minus) ^ /usr/include/c++/4.8/valarray:1168:1: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: '__gnu_cxx::__alloc_traits<std::allocator<clasa> >::value_type {aka clasa}' is not derived from 'const std::valarray<_Tp>' fout<<v.back()-1<<'\n'; ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0, from qclasa.cpp:1: /usr/include/c++/4.8/valarray:1168:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__minus, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__minus, _Tp>::result_type> std::operator-(const _Tp&, const std::valarray<_Tp>&) _DEFINE_BINARY_OPERATOR(-, __minus) ^ /usr/include/c++/4.8/valarray:1168:1: note: template argument deduction/substitution failed: qclasa.cpp:47:20: note: mismatched types 'const std::valarray<_Tp>' and 'int' fout<<v.back()-1<<'\n'; ^
Cum funcționează evaluarea?
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
- probleme la care rezolvarea presupune scrierea unui program complet
- probleme la care rezolvarea presupune scrierea unei secvențe de program - câteva instrucțiuni, o listă de declarații, una sau mai multe funcții, etc.
Problema qclasa face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
- Programul sursă este compilat folosind compilatorul corespunzător. Dacă în urma compilării se obțin erori sau avertismente, acestea sunt afișate în această pagină.
- Dacă programul a fost compilat, executabilul obținut va fi rulat, furnizându-i-se unul sau mai multe seturi de date de intrare, în concordanță cu restricțiile specifice problemei. Pentru fiecare set de date se obține un anumit punctaj, în raport cu corectitudinea soluției tale.
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.