Rezumat problemă

Bacterie

#1943

O echipă de arheologi a descoperit o hartă străveche a Ținutului de Nord, care era locuit de o civilizație condusă după reguli matematice foarte riguroase. Conform acestei hărți, Ținutul de Nord era împărțit în n rânduri a câte m comitate, fiecare comitat ocupând o suprafață pătrată de un hectar.

Însă descoperirile au mai arătat că această civilizație a fost atacată de la sud-vest de o bacterie periculoasă, ce a acționat astfel: în primul an, a infectat comitatul din colțul din stânga jos al hărții, în al doilea an a infectat cele două comitate vecine cu primul, în al treilea an a infectat cele trei comitate vecine cu anterioarele două și așa mai departe, infecția oprindu-se când bacteria a ajuns la marginea de sus sau la marginea din dreapta a hărții.

Scrieţi un program care să determine numărul de comitate rămase neinfectate după oprirea expansiunii bacteriei.

Urmasii lui Moisil, gimnaziu, 2017

Fișiere Candale Silviu (silviu) concurs

Clasa 9 Elemente de baza ale limbajului Structura de decizie

Rezolvă

Detalii

Problema	Bacterie	Operații I/O	bacterie.in/bacterie.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#56468444	Utilizator	Popescu Vlad (vladpop14)
Fișier	bacterie.cpp	Dimensiune	306 B
Data încărcării	20 Februarie 2025, 14:45	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

bacterie.cpp: In function 'int main()':
bacterie.cpp:17:7: error: no match for 'operator<<' (operand types are 'std::ifstream {aka std::basic_ifstream<char>}' and 'int')
     f << (n*m)-(n*(n+1)/2);

       ^
bacterie.cpp:17:7: note: candidates are:
In file included from /usr/include/c++/4.8/string:52:0,
                 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 bacterie.cpp:1:
/usr/include/c++/4.8/bits/basic_string.h:2753:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&)
     operator<<(basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2753:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:471:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT)
     operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
     ^
/usr/include/c++/4.8/ostream:471:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:476:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char)
     operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
     ^
/usr/include/c++/4.8/ostream:476:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:482:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char)
     operator<<(basic_ostream<char, _Traits>& __out, char __c)
     ^
/usr/include/c++/4.8/ostream:482:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:488:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, signed char)
     operator<<(basic_ostream<char, _Traits>& __out, signed char __c)
     ^
/usr/include/c++/4.8/ostream:488:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:493:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, unsigned char)
     operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c)
     ^
/usr/include/c++/4.8/ostream:493:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:513:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*)
     operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
     ^
/usr/include/c++/4.8/ostream:513:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/ostream:612:0,
                 from /usr/include/c++/4.8/iostream:39,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/bits/ostream.tcc:321:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const char*)
     operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s)
     ^
/usr/include/c++/4.8/bits/ostream.tcc:321:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:530:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char*)
     operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
     ^
/usr/include/c++/4.8/ostream:530:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:543:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const signed char*)
     operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s)
     ^
/usr/include/c++/4.8/ostream:543:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:548:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const unsigned char*)
     operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s)
     ^
/usr/include/c++/4.8/ostream:548:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from bacterie.cpp:1:
/usr/include/c++/4.8/ostream:602:5: note: template<class _CharT, class _Traits, class _Tp> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&&, const _Tp&)
     operator<<(basic_ostream<_CharT, _Traits>&& __os, const _Tp& __x)
     ^
/usr/include/c++/4.8/ostream:602:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from bacterie.cpp:3:0:
/usr/include/c++/4.8/iomanip:76:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::_Resetiosflags)
     operator<<(basic_ostream<_CharT, _Traits>& __os, _Resetiosflags __f)
     ^
/usr/include/c++/4.8/iomanip:76:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from bacterie.cpp:3:0:
/usr/include/c++/4.8/iomanip:106:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::_Setiosflags)
     operator<<(basic_ostream<_CharT, _Traits>& __os, _Setiosflags __f)
     ^
/usr/include/c++/4.8/iomanip:106:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from bacterie.cpp:3:0:
/usr/include/c++/4.8/iomanip:140:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::_Setbase)
     operator<<(basic_ostream<_CharT, _Traits>& __os, _Setbase __f)
     ^
/usr/include/c++/4.8/iomanip:140:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from bacterie.cpp:3:0:
/usr/include/c++/4.8/iomanip:175:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::_Setfill<_CharT>)
     operator<<(basic_ostream<_CharT, _Traits>& __os, _Setfill<_CharT> __f)
     ^
/usr/include/c++/4.8/iomanip:175:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from bacterie.cpp:3:0:
/usr/include/c++/4.8/iomanip:205:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::_Setprecision)
     operator<<(basic_ostream<_CharT, _Traits>& __os, _Setprecision __f)
     ^
/usr/include/c++/4.8/iomanip:205:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from bacterie.cpp:3:0:
/usr/include/c++/4.8/iomanip:235:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::_Setw)
     operator<<(basic_ostream<_CharT, _Traits>& __os, _Setw __f)
     ^
/usr/include/c++/4.8/iomanip:235:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^
In file included from bacterie.cpp:3:0:
/usr/include/c++/4.8/iomanip:308:5: note: template<class _CharT, class _Traits, class _MoneyT> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, std::_Put_money<_MoneyT>)
     operator<<(basic_ostream<_CharT, _Traits>& __os, _Put_money<_MoneyT> __f)
     ^
/usr/include/c++/4.8/iomanip:308:5: note:   template argument deduction/substitution failed:
bacterie.cpp:17:26: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     f << (n*m)-(n*(n+1)/2);

                          ^

Cum funcționează evaluarea?