Rezumat problemă

max_patrat

#4695

Se dă o matrice cu n linii şi n coloane şi elemente numere întregi. Pentru fiecare linie din matrice, calculaţi cea mai mare valoare care se află pe diagonala principală sau pe diagonala secundară.

Consola Muresan Ciprian (mcip1977) ușoară

Clasa 9 Tablouri bidimensionale (matrice) Parcurgerea matricelor pătratice

Rezolvă

Detalii

Problema	max_patrat	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64721830	Utilizator	Boldea Alesia (alesia22aa)
Fișier	max_patrat.cpp	Dimensiune	415 B
Data încărcării	26 Mai 2026, 08:46	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

max_patrat.cpp: In function ‘int main()’:
max_patrat.cpp:18:30: error: no match for ‘operator>>’ (operand types are ‘std::basic_ostream<char>’ and ‘<unresolved overloaded function type>’)
   18 |             cout<<a[i][n-i-i]>>endl;
      |             ~~~~~~~~~~~~~~~~~^~~~~~
In file included from /usr/include/c++/13/string:55,
                 from /usr/include/c++/13/bits/locale_classes.h:40,
                 from /usr/include/c++/13/bits/ios_base.h:41,
                 from /usr/include/c++/13/ios:44,
                 from /usr/include/c++/13/ostream:40,
                 from /usr/include/c++/13/iostream:41,
                 from max_patrat.cpp:1:
/usr/include/c++/13/bits/basic_string.tcc:827:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, __cxx11::basic_string<_CharT, _Traits, _Alloc>&)’
  827 |     operator>>(basic_istream<_CharT, _Traits>& __in,
      |     ^~~~~~~~
/usr/include/c++/13/bits/basic_string.tcc:827:5: note:   template argument deduction/substitution failed:
max_patrat.cpp:18:32: note:   ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
   18 |             cout<<a[i][n-i-i]>>endl;
      |                                ^~~~
In file included from /usr/include/c++/13/istream:1106,
                 from /usr/include/c++/13/iostream:42:
/usr/include/c++/13/bits/istream.tcc:975:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, _CharT&)’
  975 |     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
      |     ^~~~~~~~
/usr/include/c++/13/bits/istream.tcc:975:5: note:   template argument deduction/substitution failed:
max_patrat.cpp:18:32: note:   ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
   18 |             cout<<a[i][n-i-i]>>endl;
      |                                ^~~~
/usr/include/c++/13/istream:846:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, unsigned char&)’
  846 |     operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c)
      |     ^~~~~~~~
/usr/include/c++/13/istream:846:5: note:   template argument deduction/substitution failed:
max_patrat.cpp:18:32: note:   ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<char, _Traits>’
   18 |             cout<<a[i][n-i-i]>>endl;
      |                                ^~~~
/usr/include/c++/13/istream:851:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, signed char&)’
  851 |     operator>>(basic_istream<char, _Traits>& __in, signed char& __c)
      |     ^~~~~~~~
/usr/include/c++/13/istream:851:5: note:   template argument deduction/substitution failed:
max_patrat.cpp:18:32: note:   ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<char, _Traits>’
   18 |             cout<<a[i][n-i-i]>>endl;
      |                                ^~~~
/usr/include/c++/13/istream:893:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, _CharT*)’
  893 |     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
      |     ^~~~~~~~
/usr/include/c++/13/istream:893:5: note:   template argument deduction/substitution failed:
max_patrat.cpp:18:32: note:   ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
   18 |             cout<<a[i][n-i-i]>>endl;
      |                                ^~~~
/usr/include/c++/13/istream:936:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, unsigned char*)’
  936 |     operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s)
      |     ^~~~~~~~
/usr/include/c++/13/istream:936:5: note:   template argument deduction/substitution failed:
max_patrat.cpp:18:32: note:   ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<char, _Traits>’
   18 |             cout<<a[i][n-i-i]>>endl;
      |                                ^~~~
/usr/include/c++/13/istream:942:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, signed char*)’
  942 |     operator>>(basic_istream<char, _Traits>& __in, signed char* __s)
      |     ^~~~~~~~
/usr/include/c++/13/istream:942:5: note:   template argument deduction/substitution failed:
max_patrat.cpp:18:32: note:   ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<char, _Traits>’
   18 |             cout<<a[i][n-i-i]>>endl;
      |                                ^~~~
/usr/include/c++/13/istream:1096:5: note: candidate: ‘template<class _Istream, class _Tp> _Istream&& std::operator>>(_Istream&&, _Tp&&)’
 1096 |     operator>>(_Istream&& __is, _Tp&& __x)
      |     ^~~~~~~~
/usr/include/c++/13/istream:1096:5: note:   template argument deduction/substitution failed:
max_patrat.cpp:18:32: note:   couldn’t deduce template parameter ‘_Tp’
   18 |             cout<<a[i][n-i-i]>>endl;
      |                                ^~~~

Cum funcționează evaluarea?