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Detalii evaluare #55004266

Rezumat problemă

#2600 expatr

Scrieți un program care citește de la tastatură un număr natural a și care afișează partea întreagă a valorii expresiei \( {{3 \cdot \left(a^2+a^4 \right)} \over {a^2+a^4 + \sqrt {a^2+a^4} }} + \sqrt {a^2+a^4} \).

Rezolvă

Detalii

Problema expatr Operații I/O tastatură/ecran
Limita timp 0.1 secunde Limita memorie Total: 64 MB / Stivă 8 MB
Id soluție #55004266 Utilizator Purusniuc Ana (purusniu_cana)
Fișier expatr.cpp Dimensiune 182 B
Data încărcării 16 Decembrie 2024, 09:41 Scor / rezultat Eroare de compilare

Evaluare


Mesaj compilare

expatr.cpp: In function 'int main()':
expatr.cpp:9:19: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                   ^
expatr.cpp:9:26: error: no match for 'operator^' (operand types are 'std::basic_ostream<char>' and 'int')
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                          ^
expatr.cpp:9:26: note: candidates are:
In file included from /usr/include/c++/4.8/ios:42:0,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from expatr.cpp:1:
/usr/include/c++/4.8/bits/ios_base.h:85:3: note: constexpr std::_Ios_Fmtflags std::operator^(std::_Ios_Fmtflags, std::_Ios_Fmtflags)
   operator^(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
   ^
/usr/include/c++/4.8/bits/ios_base.h:85:3: note:   no known conversion for argument 1 from 'std::basic_ostream<char>' to 'std::_Ios_Fmtflags'
/usr/include/c++/4.8/bits/ios_base.h:127:3: note: constexpr std::_Ios_Openmode std::operator^(std::_Ios_Openmode, std::_Ios_Openmode)
   operator^(_Ios_Openmode __a, _Ios_Openmode __b)
   ^
/usr/include/c++/4.8/bits/ios_base.h:127:3: note:   no known conversion for argument 1 from 'std::basic_ostream<char>' to 'std::_Ios_Openmode'
/usr/include/c++/4.8/bits/ios_base.h:167:3: note: constexpr std::_Ios_Iostate std::operator^(std::_Ios_Iostate, std::_Ios_Iostate)
   operator^(_Ios_Iostate __a, _Ios_Iostate __b)
   ^
/usr/include/c++/4.8/bits/ios_base.h:167:3: note:   no known conversion for argument 1 from 'std::basic_ostream<char>' to 'std::_Ios_Iostate'
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:65:0,
                 from expatr.cpp:1:
/usr/include/c++/4.8/bitset:1434:5: note: template<unsigned int _Nb> std::bitset<_Nb> std::operator^(const std::bitset<_Nb>&, const std::bitset<_Nb>&)
     operator^(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT
     ^
/usr/include/c++/4.8/bitset:1434:5: note:   template argument deduction/substitution failed:
expatr.cpp:9:29: note:   'std::basic_ostream<char>' is not derived from 'const std::bitset<_Nb>'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                             ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from expatr.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note: template<class _Dom1, class _Dom2> std::_Expr<std::_BinClos<std::__bitwise_xor, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__bitwise_xor, typename _Dom1::value_type>::result_type> std::operator^(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note:   template argument deduction/substitution failed:
expatr.cpp:9:29: note:   'std::basic_ostream<char>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                             ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from expatr.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__bitwise_xor, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__bitwise_xor, typename _Dom1::value_type>::result_type> std::operator^(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)
     _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note:   template argument deduction/substitution failed:
expatr.cpp:9:29: note:   'std::basic_ostream<char>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                             ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from expatr.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__bitwise_xor, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__bitwise_xor, typename _Dom1::value_type>::result_type> std::operator^(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note:   template argument deduction/substitution failed:
expatr.cpp:9:29: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                             ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from expatr.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__bitwise_xor, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__bitwise_xor, typename _Dom1::value_type>::result_type> std::operator^(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note:   template argument deduction/substitution failed:
expatr.cpp:9:29: note:   'std::basic_ostream<char>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                             ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from expatr.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__bitwise_xor, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__bitwise_xor, typename _Dom1::value_type>::result_type> std::operator^(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:407:5: note:   template argument deduction/substitution failed:
expatr.cpp:9:29: note:   'std::basic_ostream<char>' is not derived from 'const std::valarray<typename _Dom::value_type>'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                             ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0,
                 from expatr.cpp:1:
/usr/include/c++/4.8/valarray:1172:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__bitwise_xor, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__bitwise_xor, _Tp>::result_type> std::operator^(const std::valarray<_Tp>&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(^, __bitwise_xor)
 ^
/usr/include/c++/4.8/valarray:1172:1: note:   template argument deduction/substitution failed:
expatr.cpp:9:29: note:   'std::basic_ostream<char>' is not derived from 'const std::valarray<_Tp>'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                             ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0,
                 from expatr.cpp:1:
/usr/include/c++/4.8/valarray:1172:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__bitwise_xor, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__bitwise_xor, _Tp>::result_type> std::operator^(const std::valarray<_Tp>&, const _Tp&)
 _DEFINE_BINARY_OPERATOR(^, __bitwise_xor)
 ^
/usr/include/c++/4.8/valarray:1172:1: note:   template argument deduction/substitution failed:
expatr.cpp:9:29: note:   'std::basic_ostream<char>' is not derived from 'const std::valarray<_Tp>'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                             ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0,
                 from expatr.cpp:1:
/usr/include/c++/4.8/valarray:1172:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__bitwise_xor, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__bitwise_xor, _Tp>::result_type> std::operator^(const _Tp&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(^, __bitwise_xor)
 ^
/usr/include/c++/4.8/valarray:1172:1: note:   template argument deduction/substitution failed:
expatr.cpp:9:29: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                             ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:103:0,
                 from expatr.cpp:1:
/usr/include/c++/4.8/future:143:20: note: constexpr std::launch std::operator^(std::launch, std::launch)
   constexpr launch operator^(launch __x, launch __y)
                    ^
/usr/include/c++/4.8/future:143:20: note:   no known conversion for argument 1 from 'std::basic_ostream<char>' to 'std::launch'
expatr.cpp:9:28: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                            ^
expatr.cpp:9:41: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                                         ^
expatr.cpp:9:55: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                                                       ^
expatr.cpp:9:64: error: invalid operands of types '__gnu_cxx::__enable_if<true, double>::__type {aka double}' and '<unresolved overloaded function type>' to binary 'operator<<'
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                                                                ^
expatr.cpp:9:46: warning: suggest parentheses around '+' inside '<<' [-Wparentheses]
     cout << 3*(a^2+a^4)/a^2+a^4+sqrt(a^2+a^4)+sqrt(a^2+a^4) << endl;

                                              ^

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 expatr 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.