Rezumat problemă

Regine1

#1281

Se consideră o tablă de șah de dimensiune n. Să se plaseze pe tablă n regine astfel încât să nu existe două regine care să se atace.

Consola Candale Silviu (silviu) ușoară

Clasa 11 Backtracking Elemente de combinatorică

Rezolvă

Detalii

Problema	Regine1	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64310647	Utilizator	Ursachi Alisia (_alisia_ursachi)
Fișier	regine1.cpp	Dimensiune	896 B
Data încărcării	29 Aprilie 2026, 09:08	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

regine1.cpp: In function ‘int valid(int)’:
regine1.cpp:14:10: error: ‘i’ was not declared in this scope
   14 |      for(i=1;i<k;i++)
      |          ^
regine1.cpp: In function ‘void afisare(int)’:
regine1.cpp:28:14: error: no match for ‘operator>>’ (operand types are ‘std::ostream’ {aka ‘std::basic_ostream<char>’} and ‘<unresolved overloaded function type>’)
   28 |          cout>>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 regine1.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:
regine1.cpp:28:16: note:   ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<_CharT, _Traits>’
   28 |          cout>>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:
regine1.cpp:28:16: note:   ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<_CharT, _Traits>’
   28 |          cout>>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:
regine1.cpp:28:16: note:   ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<char, _Traits>’
   28 |          cout>>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:
regine1.cpp:28:16: note:   ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<char, _Traits>’
   28 |          cout>>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:
regine1.cpp:28:16: note:   ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<_CharT, _Traits>’
   28 |          cout>>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:
regine1.cpp:28:16: note:   ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<char, _Traits>’
   28 |          cout>>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:
regine1.cpp:28:16: note:   ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<char, _Traits>’
   28 |          cout>>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:
regine1.cpp:28:16: note:   couldn’t deduce template parameter ‘_Tp’
   28 |          cout>>endl;
      |                ^~~~

Cum funcționează evaluarea?