Rezumat problemă

NumarulDeCifre

#66

Să se scrie un program care să determine numărul de cifre ale unui număr natural citit de la tastatură.

Consola Candale Silviu (silviu) ușoară

Clasa 9 Algoritmi elementari Cifrele unui număr

Rezolvă

Detalii

Problema	NumarulDeCifre	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64619340	Utilizator	gaita andreea (andreeagaita)
Fișier	numaruldecifre.cpp	Dimensiune	191 B
Data încărcării	18 Mai 2026, 22:21	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

numaruldecifre.cpp: In function ‘int main()’:
numaruldecifre.cpp:5:5: error: ambiguous overload for ‘operator>>’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘int’)
    5 |  cin>>0;
      |  ~~~^~~
      |  |    |
      |  |    int
      |  std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/13/iostream:42,
                 from numaruldecifre.cpp:1:
/usr/include/c++/13/istream:122:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’
  122 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |       ^~~~~~~~
/usr/include/c++/13/istream:126:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__ios_type& (*)(__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>; __ios_type = std::basic_ios<char>]’
  126 |       operator>>(__ios_type& (*__pf)(__ios_type&))
      |       ^~~~~~~~
/usr/include/c++/13/istream:133:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’
  133 |       operator>>(ios_base& (*__pf)(ios_base&))
      |       ^~~~~~~~
/usr/include/c++/13/istream:349:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; __streambuf_type = std::basic_streambuf<char>]’
  349 |       operator>>(__streambuf_type* __sb);
      |       ^~~~~~~~
/usr/include/c++/13/istream:936:5: note: candidate: ‘std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, unsigned char*) [with _Traits = char_traits<char>]’
  936 |     operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s)
      |     ^~~~~~~~
/usr/include/c++/13/istream:942:5: note: candidate: ‘std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, signed char*) [with _Traits = char_traits<char>]’
  942 |     operator>>(basic_istream<char, _Traits>& __in, signed char* __s)
      |     ^~~~~~~~
numaruldecifre.cpp:7:4: error: ‘nr’ was not declared in this scope; did you mean ‘n’?
    7 |  { nr cifre=1;}
      |    ^~
      |    n
numaruldecifre.cpp:10:3: error: ‘nr’ was not declared in this scope; did you mean ‘n’?
   10 |  {nr cifre++;
      |   ^~
      |   n

Cum funcționează evaluarea?