Detalii evaluare: ~30043456

Detalii evaluare #30043456

Rezumat problema
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Rezumat problemă

`#105` max2

Să se scrie un program care determină maximul a două numere întregi citite de la tastatură.

Consola
Candale Silviu (silviu)
ușoară

Clasa 9 Elemente de baza ale limbajului Structura de decizie

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Detalii

Problema	max2	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: `64 MB` / Stivă `8 MB`
Id soluție	`#30043456`	Utilizator	Mihuța Maria (mmaarriiaa)
Fișier	max2.cpp	Dimensiune	165 B
Data încărcării	08 Iunie 2021, 19:49	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

max2.cpp: In function 'int main()':
max2.cpp:10:13: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'int')
         cout>>a;

             ^
max2.cpp:10:13: 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/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from max2.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:
max2.cpp:10:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         cout>>a;

               ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/iostream:40,
                 from max2.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:
max2.cpp:10:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         cout>>a;

               ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/iostream:40,
                 from max2.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:
max2.cpp:10:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         cout>>a;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:10:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         cout>>a;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:10:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         cout>>a;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:10:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         cout>>a;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:10:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         cout>>a;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:10:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         cout>>a;

               ^
max2.cpp:12:13: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'int')
         cout>>b;

             ^
max2.cpp:12:13: 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/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from max2.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:
max2.cpp:12:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         cout>>b;

               ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/iostream:40,
                 from max2.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:
max2.cpp:12:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         cout>>b;

               ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/iostream:40,
                 from max2.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:
max2.cpp:12:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         cout>>b;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:12:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         cout>>b;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:12:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         cout>>b;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:12:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         cout>>b;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:12:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         cout>>b;

               ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from max2.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:
max2.cpp:12:15: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         cout>>b;

               ^
max2.cpp:12:16: error: expected '}' at end of input
         cout>>b;

                ^

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 max2 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.