Rezumat problemă

GenMat8

#217

Scrieţi un program care citeşte de la tastatură un număr natural n şi construieşte în memorie o matrice cu n linii şi n coloane, numerotate de la 1 la n, în care elementele de pe liniile cu indice impar sunt egale cu indicele de linie, iar elementele situate pe linii cu indice par sunt egale cu indicele de coloană.

Variante Bacalaureat 2009

Consola Candale Silviu (silviu) ușoară

Clasa 9 Tablouri bidimensionale (matrice) Generări de matrice Bacalaureat Bacalaureat 2009

Rezolvă

Detalii

Problema	GenMat8	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64801369	Utilizator	Dumitrescu Stefan (Stefan_Dumitrescu)
Fișier	genmat8.cpp	Dimensiune	470 B
Data încărcării	02 Iunie 2026, 11:25	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

genmat8.cpp: In function ‘int main()’:
genmat8.cpp:10:16: error: no match for ‘operator>’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘int’)
   10 |             cin>a[i][j];
      |             ~~~^~~~~~~~
      |             |         |
      |             |         int
      |             std::istream {aka std::basic_istream<char>}
genmat8.cpp:10:16: note: candidate: ‘operator>(int, int)’ (built-in)
   10 |             cin>a[i][j];
      |             ~~~^~~~~~~~
genmat8.cpp:10:16: note:   no known conversion for argument 1 from ‘std::istream’ {aka ‘std::basic_istream<char>’} to ‘int’
In file included from /usr/include/c++/13/string:48,
                 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 genmat8.cpp:1:
/usr/include/c++/13/bits/stl_iterator.h:469:5: note: candidate: ‘template<class _Iterator> bool std::operator>(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)’
  469 |     operator>(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_iterator.h:469:5: note:   template argument deduction/substitution failed:
genmat8.cpp:10:23: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘const std::reverse_iterator<_Iterator>’
   10 |             cin>a[i][j];
      |                       ^
/usr/include/c++/13/bits/stl_iterator.h:514:5: note: candidate: ‘template<class _IteratorL, class _IteratorR> bool std::operator>(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)’
  514 |     operator>(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_iterator.h:514:5: note:   template argument deduction/substitution failed:
genmat8.cpp:10:23: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘const std::reverse_iterator<_Iterator>’
   10 |             cin>a[i][j];
      |                       ^
/usr/include/c++/13/bits/stl_iterator.h:1725:5: note: candidate: ‘template<class _IteratorL, class _IteratorR> bool std::operator>(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)’
 1725 |     operator>(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_iterator.h:1725:5: note:   template argument deduction/substitution failed:
genmat8.cpp:10:23: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘const std::move_iterator<_IteratorL>’
   10 |             cin>a[i][j];
      |                       ^
/usr/include/c++/13/bits/stl_iterator.h:1784:5: note: candidate: ‘template<class _Iterator> bool std::operator>(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)’
 1784 |     operator>(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_iterator.h:1784:5: note:   template argument deduction/substitution failed:
genmat8.cpp:10:23: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘const std::move_iterator<_IteratorL>’
   10 |             cin>a[i][j];
      |                       ^
In file included from /usr/include/c++/13/bits/stl_algobase.h:64,
                 from /usr/include/c++/13/string:51:
/usr/include/c++/13/bits/stl_pair.h:848:5: note: candidate: ‘template<class _T1, class _T2> constexpr bool std::operator>(const pair<_T1, _T2>&, const pair<_T1, _T2>&)’
  848 |     operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_pair.h:848:5: note:   template argument deduction/substitution failed:
genmat8.cpp:10:23: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘const std::pair<_T1, _T2>’
   10 |             cin>a[i][j];
      |                       ^
In file included from /usr/include/c++/13/string:54:
/usr/include/c++/13/bits/basic_string.h:3870:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const __cxx11::basic_string<_CharT, _Traits, _Alloc>&, const __cxx11::basic_string<_CharT, _Traits, _Alloc>&)’
 3870 |     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/basic_string.h:3870:5: note:   template argument deduction/substitution failed:
genmat8.cpp:10:23: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
   10 |             cin>a[i][j];
      |                       ^
/usr/include/c++/13/bits/basic_string.h:3884:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const __cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)’
 3884 |     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/basic_string.h:3884:5: note:   template argument deduction/substitution failed:
genmat8.cpp:10:23: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
   10 |             cin>a[i][j];
      |                       ^
/usr/include/c++/13/bits/basic_string.h:3897:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const _CharT*, const __cxx11::basic_string<_CharT, _Traits, _Alloc>&)’
 3897 |     operator>(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/basic_string.h:3897:5: note:   template argument deduction/substitution failed:
genmat8.cpp:10:23: note:   mismatched types ‘const _CharT*’ and ‘std::basic_istream<char>’
   10 |             cin>a[i][j];
      |                       ^
genmat8.cpp:19:2: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   19 |  for(i=1;i<=n;i++)
      |  ^~~
genmat8.cpp:22:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
   22 |         cout<<endl;
      |         ^~~~

Cum funcționează evaluarea?