Rezumat problemă

Palindrom

#88

Să se verifice dacă un cuvânt dat este palindrom.

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Detalii

Problema	Palindrom	Operații I/O	palindrom.in/palindrom.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#63821660	Utilizator	Boboc Sebastian-Nicolae (froz007)
Fișier	palindrom.cpp	Dimensiune	611 B
Data încărcării	20 Martie 2026, 09:36	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

palindrom.cpp: In function 'bool palindrom(char)':
palindrom.cpp:9:33: error: invalid conversion from 'char' to 'const char*' [-fpermissive]
     for (int i = 0; i < strlen(S) / 2; i++)

                                 ^
In file included from /usr/include/c++/4.8/cstring:42:0,
                 from palindrom.cpp:2:
/usr/include/string.h:399:15: error:   initializing argument 1 of 'size_t strlen(const char*)' [-fpermissive]
 extern size_t strlen (const char *__s)
               ^
palindrom.cpp:9:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < strlen(S) / 2; i++)

                                     ^
palindrom.cpp:10:16: error: invalid types 'char[int]' for array subscript
         if (S[i] != S[strlen(S) - i])

                ^
palindrom.cpp:10:31: error: invalid conversion from 'char' to 'const char*' [-fpermissive]
         if (S[i] != S[strlen(S) - i])

                               ^
In file included from /usr/include/c++/4.8/cstring:42:0,
                 from palindrom.cpp:2:
/usr/include/string.h:399:15: error:   initializing argument 1 of 'size_t strlen(const char*)' [-fpermissive]
 extern size_t strlen (const char *__s)
               ^
palindrom.cpp:10:36: error: invalid types 'char[size_t {aka unsigned int}]' for array subscript
         if (S[i] != S[strlen(S) - i])

                                    ^
palindrom.cpp: In function 'int main()':
palindrom.cpp:25:20: error: invalid conversion from 'char' to 'std::basic_istream<char>::char_type* {aka char*}' [-fpermissive]
         f.get(S, 21);

                    ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from palindrom.cpp:1:
/usr/include/c++/4.8/istream:354:7: error:   initializing argument 1 of 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::get(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = int]' [-fpermissive]
       get(char_type* __s, streamsize __n)
       ^
palindrom.cpp:30:11: error: no match for 'operator>>' (operand types are 'std::ofstream {aka std::basic_ofstream<char>}' and 'bool')
         g >> vec[i] >> endl;

           ^
palindrom.cpp:30:11: note: candidates are:
In file included from /usr/include/c++/4.8/string:53:0,
                 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/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from palindrom.cpp:1:
/usr/include/c++/4.8/bits/basic_string.tcc:996:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::basic_string<_CharT, _Traits, _Alloc>&)
     operator>>(basic_istream<_CharT, _Traits>& __in,
     ^
/usr/include/c++/4.8/bits/basic_string.tcc:996:5: note:   template argument deduction/substitution failed:
palindrom.cpp:30:19: note:   'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         g >> vec[i] >> endl;

                   ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from palindrom.cpp:1:
/usr/include/c++/4.8/bits/istream.tcc:955:5: note: template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*)
     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
     ^
/usr/include/c++/4.8/bits/istream.tcc:955:5: note:   template argument deduction/substitution failed:
palindrom.cpp:30:19: note:   'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         g >> vec[i] >> endl;

                   ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from palindrom.cpp:1:
/usr/include/c++/4.8/bits/istream.tcc:923:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)
     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
     ^
/usr/include/c++/4.8/bits/istream.tcc:923:5: note:   template argument deduction/substitution failed:
palindrom.cpp:30:19: note:   'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         g >> vec[i] >> endl;

                   ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from palindrom.cpp:1:
/usr/include/c++/4.8/istream:727:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&)
     operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c)
     ^
/usr/include/c++/4.8/istream:727:5: note:   template argument deduction/substitution failed:
palindrom.cpp:30:19: note:   'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         g >> vec[i] >> endl;

                   ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from palindrom.cpp:1:
/usr/include/c++/4.8/istream:732:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&)
     operator>>(basic_istream<char, _Traits>& __in, signed char& __c)
     ^
/usr/include/c++/4.8/istream:732:5: note:   template argument deduction/substitution failed:
palindrom.cpp:30:19: note:   'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         g >> vec[i] >> endl;

                   ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from palindrom.cpp:1:
/usr/include/c++/4.8/istream:774:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*)
     operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s)
     ^
/usr/include/c++/4.8/istream:774:5: note:   template argument deduction/substitution failed:
palindrom.cpp:30:19: note:   'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         g >> vec[i] >> endl;

                   ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from palindrom.cpp:1:
/usr/include/c++/4.8/istream:779:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*)
     operator>>(basic_istream<char, _Traits>& __in, signed char* __s)
     ^
/usr/include/c++/4.8/istream:779:5: note:   template argument deduction/substitution failed:
palindrom.cpp:30:19: note:   'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
         g >> vec[i] >> endl;

                   ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from palindrom.cpp:1:
/usr/include/c++/4.8/istream:872:5: note: template<class _CharT, class _Traits, class _Tp> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&)
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^
/usr/include/c++/4.8/istream:872:5: note:   template argument deduction/substitution failed:
palindrom.cpp:30:19: note:   'std::ofstream {aka std::basic_ofstream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
         g >> vec[i] >> endl;

                   ^

Cum funcționează evaluarea?