Rezumat problemă

Spectacole

#353

La un festival sunt programate n spectacole. Pentru fiecare se cunoaște momentul de început și momentul de sfârșit, exprimate prin numere naturale. Un spectator dorește să urmărească cât mai multe spectacole în întregime.

Determinați numărul maxim de spectacole care pot fi urmărite, fără ca acestea să se suprapună.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Metoda Greedy Probleme diverse cu metoda Greedy

Rezolvă

Detalii

Problema	Spectacole	Operații I/O	spectacole.in/spectacole.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64305962	Utilizator	Brebu Alex (BrebuAlex)
Fișier	spectacole.cpp	Dimensiune	717 B
Data încărcării	28 Aprilie 2026, 20:28	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

spectacole.cpp: In function ‘int main()’:
spectacole.cpp:10:45: error: conflicting declaration ‘int fin’
   10 |   int i,j,v[101][101],n,k,nr=0,min=1000000, fin=0;
      |                                             ^~~
spectacole.cpp:8:12: note: previous declaration as ‘std::ifstream fin’
    8 |   ifstream fin("spectacole.in");
      |            ^~~
spectacole.cpp:37:13: error: no match for ‘operator<=’ (operand types are ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} and ‘int’)
   37 |       if(fin<=v[i][1])
      |          ~~~^~~~~~~~~
      |          |          |
      |          |          int
      |          std::ifstream {aka std::basic_ifstream<char>}
spectacole.cpp:37:13: note: candidate: ‘operator<=(int, int)’ (built-in)
   37 |       if(fin<=v[i][1])
      |          ~~~^~~~~~~~~
spectacole.cpp:37:13: note:   no known conversion for argument 1 from ‘std::ifstream’ {aka ‘std::basic_ifstream<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 spectacole.cpp:3:
/usr/include/c++/13/bits/stl_iterator.h:476:5: note: candidate: ‘template<class _Iterator> bool std::operator<=(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)’
  476 |     operator<=(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_iterator.h:476:5: note:   template argument deduction/substitution failed:
spectacole.cpp:37:21: note:   ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} is not derived from ‘const std::reverse_iterator<_Iterator>’
   37 |       if(fin<=v[i][1])
      |                     ^
/usr/include/c++/13/bits/stl_iterator.h:520:5: note: candidate: ‘template<class _IteratorL, class _IteratorR> bool std::operator<=(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)’
  520 |     operator<=(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_iterator.h:520:5: note:   template argument deduction/substitution failed:
spectacole.cpp:37:21: note:   ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} is not derived from ‘const std::reverse_iterator<_Iterator>’
   37 |       if(fin<=v[i][1])
      |                     ^
/usr/include/c++/13/bits/stl_iterator.h:1715:5: note: candidate: ‘template<class _IteratorL, class _IteratorR> bool std::operator<=(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)’
 1715 |     operator<=(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_iterator.h:1715:5: note:   template argument deduction/substitution failed:
spectacole.cpp:37:21: note:   ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} is not derived from ‘const std::move_iterator<_IteratorL>’
   37 |       if(fin<=v[i][1])
      |                     ^
/usr/include/c++/13/bits/stl_iterator.h:1777:5: note: candidate: ‘template<class _Iterator> bool std::operator<=(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)’
 1777 |     operator<=(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_iterator.h:1777:5: note:   template argument deduction/substitution failed:
spectacole.cpp:37:21: note:   ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} is not derived from ‘const std::move_iterator<_IteratorL>’
   37 |       if(fin<=v[i][1])
      |                     ^
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:854:5: note: candidate: ‘template<class _T1, class _T2> constexpr bool std::operator<=(const pair<_T1, _T2>&, const pair<_T1, _T2>&)’
  854 |     operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/13/bits/stl_pair.h:854:5: note:   template argument deduction/substitution failed:
spectacole.cpp:37:21: note:   ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} is not derived from ‘const std::pair<_T1, _T2>’
   37 |       if(fin<=v[i][1])
      |                     ^
In file included from /usr/include/c++/13/string:54:
/usr/include/c++/13/bits/basic_string.h:3911:5: 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>&)’
 3911 |     operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/basic_string.h:3911:5: note:   template argument deduction/substitution failed:
spectacole.cpp:37:21: note:   ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
   37 |       if(fin<=v[i][1])
      |                     ^
/usr/include/c++/13/bits/basic_string.h:3925:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const __cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)’
 3925 |     operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/basic_string.h:3925:5: note:   template argument deduction/substitution failed:
spectacole.cpp:37:21: note:   ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} is not derived from ‘const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’
   37 |       if(fin<=v[i][1])
      |                     ^
/usr/include/c++/13/bits/basic_string.h:3938:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const _CharT*, const __cxx11::basic_string<_CharT, _Traits, _Alloc>&)’
 3938 |     operator<=(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/basic_string.h:3938:5: note:   template argument deduction/substitution failed:
spectacole.cpp:37:21: note:   mismatched types ‘const _CharT*’ and ‘std::basic_ifstream<char>’
   37 |       if(fin<=v[i][1])
      |                     ^
spectacole.cpp:40:19: error: no match for ‘operator=’ (operand types are ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} and ‘int’)
   40 |         fin=v[i][2];
      |                   ^
In file included from spectacole.cpp:4:
/usr/include/c++/13/fstream:616:7: note: candidate: ‘std::basic_ifstream<_CharT, _Traits>& std::basic_ifstream<_CharT, _Traits>::operator=(std::basic_ifstream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits<char>]’
  616 |       operator=(basic_ifstream&& __rhs)
      |       ^~~~~~~~
/usr/include/c++/13/fstream:616:34: note:   no known conversion for argument 1 from ‘int’ to ‘std::basic_ifstream<char>&&’
  616 |       operator=(basic_ifstream&& __rhs)
      |                 ~~~~~~~~~~~~~~~~~^~~~~
spectacole.cpp:10:32: warning: unused variable ‘min’ [-Wunused-variable]
   10 |   int i,j,v[101][101],n,k,nr=0,min=1000000, fin=0;
      |                                ^~~

Cum funcționează evaluarea?