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Detalii evaluare #62818339

Rezumat problemă

reducere1
#4788

O operaţie de reducere aplicată asupra unui șir constă în selectarea unui număr prim p şi a unor elemente din șirul dat care sunt divizibile cu p şi împărţirea acestora la p. Asupra unui șir format din n numere naturale nenule se aplică o succesiune de operaţii de reducere, până când toate elementele șirului devin egale. Valoarea finală a elementelor șirului este denumită valoare de egalitate. Valoarea de reducere a unui șir este cea mai mare dintre valorile de egalitate care se pot obţine în urma aplicării unor operaţii de reducere asupra acestui șir.
1) Determinați valoarea de reducere pentru un șir dat.
2) Determinați numărul minim de operaţii de reducere care trebuie să fie aplicate șirului dat pentru a obţine valoarea de reducere.

OJI 2025, clasa a 8-a
Fișiere Pracsiu Dan (dnprx) Emanuela Cerchez concurs
Clasa 9 Tablouri unidimensionale (vectori) Vectori caracteristici / de frecventa
Rezolvă

Detalii

Problema reducere1 Operații I/O reducere.in/reducere.out
Limita timp 2 secunde Limita memorie Total: 64 MB / Stivă 8 MB
Id soluție #62818339 Utilizator Neag Andreea Hanana (andreea_neag)
Fișier reducere1.cpp Dimensiune 1.06 KB
Data încărcării 03 Februarie 2026, 11:47 Scor/rezultat Eroare de compilare

Evaluare

Mesaj compilare

reducere1.cpp: In function 'int main()':
reducere1.cpp:52:10: error: no match for 'operator<<' (operand types are 'std::ifstream {aka std::basic_ifstream<char>}' and 'int')
         f<<m;

          ^
reducere1.cpp:52:10: 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/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/ostream:612:0,
                 from /usr/include/c++/4.8/iostream:39,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
         f<<m;

            ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from reducere1.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:
reducere1.cpp:52:12: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         f<<m;

            ^

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 reducere1 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!