Detalii evaluare: ~50743521

Detalii evaluare #50743521

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Rezumat problemă

`#3941` CountSumS C++

Scrieți funcția care are antetul:

long long CountSumS(vector<int> &a, int s)

Funcția va returna numărul de perechi (a[i], a[j]) cu i < j și a[i] + a[j] = s.

Folclorul informatic

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Pracsiu Dan (dnprx)
Dan Pracsiu
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Detalii

Problema	CountSumS	Operații I/O	`countsums.in`/`countsums.out`
Limita timp	0.4 secunde	Limita memorie	Total: `128 MB` / Stivă `64 MB`
Id soluție	`#50743521`	Utilizator	Matei Trandafir (Mateixx1)
Fișier	countsums.cpp	Dimensiune	205 B
Data încărcării	27 Aprilie 2024, 17:01	Scor / rezultat	Eroare de compilare

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Mesaj compilare

countsums.cpp: In function 'long long int CountSumS(std::vector<int>&, int)':
countsums.cpp:9:21: error: no match for 'operator-' (operand types are 'std::unordered_map<int, int>' and 'int')
         cate += v[v - e]-((s-e)== e);

                     ^
countsums.cpp:9:21: 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/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 countsums.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:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::reverse_iterator<_Iterator>'
         cate += v[v - e]-((s-e)== e);

                       ^
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/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 countsums.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:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::reverse_iterator<_Iterator>'
         cate += v[v - e]-((s-e)== e);

                       ^
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/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 countsums.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:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::move_iterator<_Iterator>'
         cate += v[v - e]-((s-e)== e);

                       ^
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/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 countsums.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:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::move_iterator<_Iterator>'
         cate += v[v - e]-((s-e)== e);

                       ^
In file included from /usr/include/c++/4.8/ccomplex:38:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from countsums.cpp:1:
/usr/include/c++/4.8/complex:354:5: note: template<class _Tp> std::complex<_Tp> std::operator-(const std::complex<_Tp>&, const std::complex<_Tp>&)
     operator-(const complex<_Tp>& __x, const complex<_Tp>& __y)
     ^
/usr/include/c++/4.8/complex:354:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::complex<_Tp>'
         cate += v[v - e]-((s-e)== e);

                       ^
In file included from /usr/include/c++/4.8/ccomplex:38:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from countsums.cpp:1:
/usr/include/c++/4.8/complex:363:5: note: template<class _Tp> std::complex<_Tp> std::operator-(const std::complex<_Tp>&, const _Tp&)
     operator-(const complex<_Tp>& __x, const _Tp& __y)
     ^
/usr/include/c++/4.8/complex:363:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::complex<_Tp>'
         cate += v[v - e]-((s-e)== e);

                       ^
In file included from /usr/include/c++/4.8/ccomplex:38:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from countsums.cpp:1:
/usr/include/c++/4.8/complex:372:5: note: template<class _Tp> std::complex<_Tp> std::operator-(const _Tp&, const std::complex<_Tp>&)
     operator-(const _Tp& __x, const complex<_Tp>& __y)
     ^
/usr/include/c++/4.8/complex:372:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   mismatched types 'const std::complex<_Tp>' and 'int'
         cate += v[v - e]-((s-e)== e);

                       ^
In file included from /usr/include/c++/4.8/ccomplex:38:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from countsums.cpp:1:
/usr/include/c++/4.8/complex:449:5: note: template<class _Tp> std::complex<_Tp> std::operator-(const std::complex<_Tp>&)
     operator-(const complex<_Tp>& __x)
     ^
/usr/include/c++/4.8/complex:449:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::complex<_Tp>'
         cate += v[v - e]-((s-e)== e);

                       ^
In file included from /usr/include/c++/4.8/vector:65:0,
                 from /usr/include/c++/4.8/bits/random.h:34,
                 from /usr/include/c++/4.8/random:50,
                 from /usr/include/c++/4.8/bits/stl_algo.h:65,
                 from /usr/include/c++/4.8/algorithm:62,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64,
                 from countsums.cpp:1:
/usr/include/c++/4.8/bits/stl_bvector.h:208:3: note: std::ptrdiff_t std::operator-(const std::_Bit_iterator_base&, const std::_Bit_iterator_base&)
   operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
   ^
/usr/include/c++/4.8/bits/stl_bvector.h:208:3: note:   no known conversion for argument 1 from 'std::unordered_map<int, int>' to 'const std::_Bit_iterator_base&'
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:67,
                 from countsums.cpp:1:
/usr/include/c++/4.8/bits/stl_deque.h:331:5: note: template<class _Tp, class _Ref, class _Ptr> typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&)
     operator-(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x,
     ^
/usr/include/c++/4.8/bits/stl_deque.h:331:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
         cate += v[v - e]-((s-e)== e);

                       ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:67,
                 from countsums.cpp:1:
/usr/include/c++/4.8/bits/stl_deque.h:343:5: note: template<class _Tp, class _RefL, class _PtrL, class _RefR, class _PtrR> typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&)
     operator-(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x,
     ^
/usr/include/c++/4.8/bits/stl_deque.h:343:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
         cate += v[v - e]-((s-e)== e);

                       ^
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 countsums.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom1, class _Dom2> std::_Expr<std::_BinClos<std::__minus, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__minus, 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(-, __minus)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
         cate += v[v - e]-((s-e)== e);

                       ^
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 countsums.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__minus, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__minus, 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(-, __minus)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
         cate += v[v - e]-((s-e)== e);

                       ^
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 countsums.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__minus, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__minus, 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(-, __minus)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
         cate += v[v - e]-((s-e)== e);

                       ^
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 countsums.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__minus, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__minus, 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(-, __minus)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
         cate += v[v - e]-((s-e)== e);

                       ^
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 countsums.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__minus, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__minus, 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(-, __minus)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:403:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::valarray<typename _Dom::value_type>'
         cate += v[v - e]-((s-e)== e);

                       ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0,
                 from countsums.cpp:1:
/usr/include/c++/4.8/valarray:1168:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__minus, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__minus, _Tp>::result_type> std::operator-(const std::valarray<_Tp>&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(-, __minus)
 ^
/usr/include/c++/4.8/valarray:1168:1: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::valarray<_Tp>'
         cate += v[v - e]-((s-e)== e);

                       ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0,
                 from countsums.cpp:1:
/usr/include/c++/4.8/valarray:1168:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__minus, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__minus, _Tp>::result_type> std::operator-(const std::valarray<_Tp>&, const _Tp&)
 _DEFINE_BINARY_OPERATOR(-, __minus)
 ^
/usr/include/c++/4.8/valarray:1168:1: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const std::valarray<_Tp>'
         cate += v[v - e]-((s-e)== e);

                       ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0,
                 from countsums.cpp:1:
/usr/include/c++/4.8/valarray:1168:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__minus, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__minus, _Tp>::result_type> std::operator-(const _Tp&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(-, __minus)
 ^
/usr/include/c++/4.8/valarray:1168:1: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
         cate += v[v - e]-((s-e)== e);

                       ^
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/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 countsums.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:896:5: note: template<class _Iterator, class _Container> typename __gnu_cxx::__normal_iterator<_Iterator, _Container>::difference_type __gnu_cxx::operator-(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)
     operator-(const __normal_iterator<_Iterator, _Container>& __lhs,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:896:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
         cate += v[v - e]-((s-e)== e);

                       ^
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/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 countsums.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:884:5: note: template<class _IteratorL, class _IteratorR, class _Container> decltype ((__lhs.base() - __rhs.base())) __gnu_cxx::operator-(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)
     operator-(const __normal_iterator<_IteratorL, _Container>& __lhs,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:884:5: note:   template argument deduction/substitution failed:
countsums.cpp:9:23: note:   'std::unordered_map<int, int>' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
         cate += v[v - e]-((s-e)== e);

                       ^

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 CountSumS face parte din a doua categorie. Pentru aceste probleme se folosește un program suport, furnizat de propunătorul problemei. Soluția propusă de tine va fi evaluată astfel:

Soluția propusă de tine este inclusă în programul suport, apoi acesta este compilat. Dacă în urma compilării se obțin erori sau avertismente, acestea sunt afișate în această pagină.
Datorită existenței programului suport, la compilare pot să apară erori sau avertismente care să nu se refere la instrucțiunile scrise de tine, dar care sunt datorate faptului că soluția ta nu este corectă.
Dacă programul suport 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.