Rezumat problemă

sir_eval

#4757

Vi se dă o expresie de forma v=a+b sau de forma v=a*b, unde v este numele unei variabile, iar a și b sunt două numere naturale. Trebuie să evaluați rezultatul expresiei.

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Detalii

Problema	sir_eval	Operații I/O	sir_eval.in/sir_eval.out
Limita timp	0.1 secunde	Limita memorie	Total: 8 MB / Stivă 2 MB
Id soluție	#57216331	Utilizator	Avramescu Tudor (Tudor_2022)
Fișier	sir_eval.cpp	Dimensiune	780 B
Data încărcării	20 Martie 2025, 13:13	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

sir_eval.cpp: In function 'int main()':
sir_eval.cpp:17:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i< strlen(p); i++)

                                ^
sir_eval.cpp:21:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i< strlen(p); i++)

                                ^
sir_eval.cpp:29:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < strlen(x) / 2; i++)

                                     ^
sir_eval.cpp:30:40: error: no matching function for call to 'swap(char&, int)'
         swap(x[i], x[strlen(x)] - 1 - i);

                                        ^
sir_eval.cpp:30:40: note: candidates are:
In file included from /usr/include/c++/4.8/bits/stl_pair.h:59:0,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 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 sir_eval.cpp:1:
/usr/include/c++/4.8/bits/move.h:166:5: note: template<class _Tp> void std::swap(_Tp&, _Tp&)
     swap(_Tp& __a, _Tp& __b)
     ^
/usr/include/c++/4.8/bits/move.h:166:5: note:   template argument deduction/substitution failed:
sir_eval.cpp:30:40: note:   deduced conflicting types for parameter '_Tp' ('char' and 'int')
         swap(x[i], x[strlen(x)] - 1 - i);

                                        ^
In file included from /usr/include/c++/4.8/bits/stl_pair.h:59:0,
                 from /usr/include/c++/4.8/bits/stl_algobase.h:64,
                 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 sir_eval.cpp:1:
/usr/include/c++/4.8/bits/move.h:185:5: note: template<class _Tp, unsigned int _Nm> void std::swap(_Tp (&)[_Nm], _Tp (&)[_Nm])
     swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
     ^
/usr/include/c++/4.8/bits/move.h:185:5: note:   template argument deduction/substitution failed:
sir_eval.cpp:30:40: note:   mismatched types '_Tp [_Nm]' and 'char'
         swap(x[i], x[strlen(x)] - 1 - i);

                                        ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0,
                 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 sir_eval.cpp:1:
/usr/include/c++/4.8/bits/stl_pair.h:254:5: note: template<class _T1, class _T2> void std::swap(std::pair<_T1, _T2>&, std::pair<_T1, _T2>&)
     swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y)
     ^
/usr/include/c++/4.8/bits/stl_pair.h:254:5: note:   template argument deduction/substitution failed:
sir_eval.cpp:30:40: note:   mismatched types 'std::pair<_T1, _T2>' and 'char'
         swap(x[i], x[strlen(x)] - 1 - i);

                                        ^
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 sir_eval.cpp:1:
/usr/include/c++/4.8/bits/basic_string.h:2717:5: note: template<class _CharT, class _Traits, class _Alloc> void std::swap(std::basic_string<_CharT, _Traits, _Alloc>&, std::basic_string<_CharT, _Traits, _Alloc>&)
     swap(basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2717:5: note:   template argument deduction/substitution failed:
sir_eval.cpp:30:40: note:   mismatched types 'std::basic_string<_CharT, _Traits, _Alloc>' and 'char'
         swap(x[i], x[strlen(x)] - 1 - i);

                                        ^

Cum funcționează evaluarea?