#3289
maxprimeintreele
Se consideră un șir de numere naturale mai mari decât 1
, numere formate din cel mult 9
cifre. Să se scrie un program care determină dintre acestea numărul n
pentru care raportul n/φ(n)
are valoare maximă. În cazul în care sunt mai multe valori pentru care raportul n/φ(n)
este maxim se va afișa prima dintre ele.
Euler Project
Problema | maxprimeintreele | Operații I/O |
maxprimeintreele.in /maxprimeintreele.out
|
---|---|---|---|
Limita timp | 0.3 secunde | Limita memorie |
Total: 10 MB
/
Stivă 8 MB
|
Id soluție | #50525699 | Utilizator | |
Fișier | maxprimeintreele.cpp | Dimensiune | 690 B |
Data încărcării | 13 Aprilie 2024, 09:17 | Scor / rezultat | Eroare de compilare |
maxprimeintreele.cpp: In function 'long long int phi(long long int)': maxprimeintreele.cpp:16:23: error: no match for 'operator/' (operand types are 'long long int' and 'std::ifstream {aka std::basic_ifstream<char>}') phi = phi / f * (f - 1); ^ maxprimeintreele.cpp:16:32: error: no match for 'operator-' (operand types are 'std::ifstream {aka std::basic_ifstream<char>}' and 'int') phi = phi / f * (f - 1); ^ maxprimeintreele.cpp:16:32: note: candidates are: In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from maxprimeintreele.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:327:5: note: template<class _Iterator> typename std::reverse_iterator<_Iterator>::difference_type std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&) operator-(const reverse_iterator<_Iterator>& __x, ^ /usr/include/c++/4.8/bits/stl_iterator.h:327:5: note: template argument deduction/substitution failed: maxprimeintreele.cpp:16:34: note: 'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::reverse_iterator<_Iterator>' phi = phi / f * (f - 1); ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from maxprimeintreele.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:379:5: note: template<class _IteratorL, class _IteratorR> decltype ((__y.base() - __x.base())) std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&) operator-(const reverse_iterator<_IteratorL>& __x, ^ /usr/include/c++/4.8/bits/stl_iterator.h:379:5: note: template argument deduction/substitution failed: maxprimeintreele.cpp:16:34: note: 'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::reverse_iterator<_Iterator>' phi = phi / f * (f - 1); ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from maxprimeintreele.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:1104:5: note: template<class _IteratorL, class _IteratorR> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_Iterator>&, const std::move_iterator<_IteratorR>&) operator-(const move_iterator<_IteratorL>& __x, ^ /usr/include/c++/4.8/bits/stl_iterator.h:1104:5: note: template argument deduction/substitution failed: maxprimeintreele.cpp:16:34: note: 'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::move_iterator<_Iterator>' phi = phi / f * (f - 1); ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from maxprimeintreele.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:1111:5: note: template<class _Iterator> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&) operator-(const move_iterator<_Iterator>& __x, ^ /usr/include/c++/4.8/bits/stl_iterator.h:1111:5: note: template argument deduction/substitution failed: maxprimeintreele.cpp:16:34: note: 'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::move_iterator<_Iterator>' phi = phi / f * (f - 1); ^ maxprimeintreele.cpp:18:19: error: no match for 'operator/=' (operand types are 'long long int' and 'std::ifstream {aka std::basic_ifstream<char>}') n /= f; ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema maxprimeintreele face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
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.