Rezumat problemă

eval_exp2

C++

#3549

Se consideră o expresie corectă formată din numere naturale, paranteze rotunde și operatorii +, -, *. Să se evalueze expresia.

Consola Varlan Cosmin (vcosmin) Cosmin Varlan & Ionut Padurariu medie

Clasa 10 Structuri de date liniare Stiva

Rezolvă

Detalii

Problema	eval_exp2	Operații I/O	tastatură/ecran
Limita timp	0.01 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#61545253	Utilizator	matei moisescu (matei123moisescu)
Fișier	eval_exp2.cpp	Dimensiune	383 B
Data încărcării	02 Decembrie 2025, 10:54	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

eval_exp2.cpp: In function 'int main()':
eval_exp2.cpp:29:16: error: no matching function for call to 'std::basic_istream<char>::get(int&)'
 while(cin.get(x)&& x!='\n')

                ^
eval_exp2.cpp:29:16: note: candidates are:
In file included from /usr/include/c++/4.8/sstream:38:0,
                 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 eval_exp2.cpp:1:
/usr/include/c++/4.8/istream:302:7: note: std::basic_istream<_CharT, _Traits>::int_type std::basic_istream<_CharT, _Traits>::get() [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::int_type = int]
       get();
       ^
/usr/include/c++/4.8/istream:302:7: note:   candidate expects 0 arguments, 1 provided
/usr/include/c++/4.8/istream:316:7: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::get(std::basic_istream<_CharT, _Traits>::char_type&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::char_type = char]
       get(char_type& __c);
       ^
/usr/include/c++/4.8/istream:316:7: note:   no known conversion for argument 1 from 'int' to 'std::basic_istream<char>::char_type& {aka char&}'
/usr/include/c++/4.8/istream:343:7: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::get(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize, std::basic_istream<_CharT, _Traits>::char_type) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = int]
       get(char_type* __s, streamsize __n, char_type __delim);
       ^
/usr/include/c++/4.8/istream:343:7: note:   candidate expects 3 arguments, 1 provided
/usr/include/c++/4.8/istream:354:7: note: 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]
       get(char_type* __s, streamsize __n)
       ^
/usr/include/c++/4.8/istream:354:7: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/4.8/istream:377:7: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::get(std::basic_istream<_CharT, _Traits>::__streambuf_type&, std::basic_istream<_CharT, _Traits>::char_type) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>; std::basic_istream<_CharT, _Traits>::char_type = char]
       get(__streambuf_type& __sb, char_type __delim);
       ^
/usr/include/c++/4.8/istream:377:7: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/4.8/istream:387:7: note: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::get(std::basic_istream<_CharT, _Traits>::__streambuf_type&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>]
       get(__streambuf_type& __sb)
       ^
/usr/include/c++/4.8/istream:387:7: note:   no known conversion for argument 1 from 'int' to 'std::basic_istream<char>::__streambuf_type& {aka std::basic_streambuf<char>&}'
eval_exp2.cpp:27:9: warning: unused variable 'v' [-Wunused-variable]
     int v[60];

         ^

Cum funcționează evaluarea?