Rezumat problemă

Bac_Fractii

C++

#4193

În declararea de mai jos, variabilele f și fs memorează în câmpurile a și b numărătorul, respectiv numitorul câte unei fracții.

struct fractie
{ int a,b;
} f,fs;

Fără a utiliza alte variabile, scrieți o secvență de instrucțiuni care să memoreze în variabila fs fracția obținută prin scăderea din fracția \( \frac{2020}{2021} \) a fracției memorate în variabila f.

Bacalaureat 2021, sesiunea august-septembrie

Consola Candale Silviu (silviu) ușoară

Clasa 10 Structuri de date neomogene Exerciții cu structuri

Rezolvă

Detalii

Problema	Bac_Fractii	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#63872285	Utilizator	Baiasu Bogdan (boanba)
Fișier	bac_fractii.cpp	Dimensiune	17 B
Data încărcării	23 Martie 2026, 21:59	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

bac_fractii.cpp: In function 'int main()':
bac_fractii.cpp:24:16: error: no match for 'operator-' (operand types are 'int' and 'fractie')
  fs= 2020/2021 -f;

                ^
bac_fractii.cpp:24:16: 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 bac_fractii.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:
bac_fractii.cpp:24:17: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
  fs= 2020/2021 -f;

                 ^
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 bac_fractii.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:
bac_fractii.cpp:24:17: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
  fs= 2020/2021 -f;

                 ^
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 bac_fractii.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:
bac_fractii.cpp:24:17: note:   mismatched types 'const std::move_iterator<_Iterator>' and 'int'
  fs= 2020/2021 -f;

                 ^
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 bac_fractii.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:
bac_fractii.cpp:24:17: note:   mismatched types 'const std::move_iterator<_Iterator>' and 'int'
  fs= 2020/2021 -f;

                 ^

Cum funcționează evaluarea?