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Detalii evaluare #57295736

Rezumat problemă

Culegere1

#1723

O culegere de probleme are P pagini, numerotate de la 1 la P. Problemele din culegere sunt numerotate cu 1,2,3,...,etc, în ordinea apariţiei lor în culegere. Pe prima pagină a culegerii este scrisă o singură problemă (cea cu numărul 1). Pe a doua pagină sunt scrise exact două probleme (cele cu numerele 2 şi 3, în această ordine). Pe cea de a P-a pagină sunt scrise exact P probleme.
Scrieţi un program care citeşte numerele naturale P şi N şi determină valorile:
a) T, numărul total de cifre care au fost utilizate în numerotarea tuturor problemelor din culegere;
b) M, numărul minim de pagini pe care ar trebui să le aibă culegerea, astfel încât aceasta să conţină şi problema numerotată cu N.

ONI 2012, Clasa a V-a

Fișiere Bud Razvan (razvi1234) Carmen Minca concurs
Clasa 9 Algoritmi elementari Probleme diverse
Rezolvă

Detalii

Problema Culegere1 Operații I/O culegere.in/culegere.out
Limita timp 0.1 secunde Limita memorie Total: 2 MB / Stivă 2 MB
Id soluție #57295736 Utilizator Mircea Gabriela (GabrielaBella)
Fișier culegere1.cpp Dimensiune 573 B
Data încărcării 24 Martie 2025, 19:09 Scor / rezultat Eroare de compilare

Evaluare

Mesaj compilare

culegere1.cpp: In function 'int main()':
culegere1.cpp:30:10: error: no match for 'operator<<' (operand types are 'std::ifstream {aka std::basic_ifstream<char>}' and 'long long int')
     cout << nrcif;

          ^
culegere1.cpp:30:10: 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/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/ostream:612:0,
                 from /usr/include/c++/4.8/istream:39,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     cout << nrcif;

             ^
In file included from /usr/include/c++/4.8/istream:39:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from culegere1.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:
culegere1.cpp:30:13: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     cout << nrcif;

             ^
culegere1.cpp:19:42: warning: unused variable 'cntcif' [-Wunused-variable]
     long long numere=p*(p+1)/2, nrcif=0, cntcif=0, cnt=1;

                                          ^
culegere1.cpp:19:52: warning: unused variable 'cnt' [-Wunused-variable]
     long long numere=p*(p+1)/2, nrcif=0, cntcif=0, cnt=1;

                                                    ^

Cum funcționează evaluarea?

www.pbinfo.ro permite evaluarea a două tipuri de probleme:

  • probleme la care rezolvarea presupune scrierea unui program complet
  • probleme la care rezolvarea presupune scrierea unei secvențe de program - câteva instrucțiuni, o listă de declarații, una sau mai multe funcții, etc.

Problema Culegere1 face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:

  • Programul sursă este compilat folosind compilatorul corespunzător. Dacă în urma compilării se obțin erori sau avertismente, acestea sunt afișate în această pagină.
  • Dacă programul a fost compilat, executabilul obținut va fi rulat, furnizându-i-se unul sau mai multe seturi de date de intrare, în concordanță cu restricțiile specifice problemei. Pentru fiecare set de date se obține un anumit punctaj, în raport cu corectitudinea soluției tale.

Suma punctajelor acordate pe testele utilizate pentru verificare este 100. Astfel, soluția ta poate obține cel mult 100 de puncte, caz în care se poate considera corectă.

Du-te sus!