Rezumat problemă

b16

#1270

Se dă un număr natural în baza 16. Să se transforme acest număr în baza 10.

Consola Vilău Marian (marianvilau) Marian Vilau ușoară

Clasa 10 Şiruri de caractere Prelucrări elementare pe șiruri de caractere

Rezolvă

Detalii

Problema	b16	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64052419	Utilizator	Merticariu Alexia (alexiiaaa_27)
Fișier	b16.cpp	Dimensiune	383 B
Data încărcării	14 Aprilie 2026, 11:46	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

b16.cpp: In function 'int main()':
b16.cpp:6:12: error: cannot bind 'std::istream {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
     cin >> s;

            ^
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 b16.cpp:1:
/usr/include/c++/4.8/istream:872:5: error:   initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = std::basic_string<char> [100]]'
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^
b16.cpp:7:36: error: cannot convert 'std::string* {aka std::basic_string<char>*}' to 'const char*' for argument '1' to 'size_t strlen(const char*)'
     for (string i = 0; i < strlen(s); i++) {

                                    ^
b16.cpp:7:40: error: no 'operator++(int)' declared for postfix '++' [-fpermissive]
     for (string i = 0; i < strlen(s); i++) {

                                        ^
b16.cpp:8:15: error: no match for 'operator[]' (operand types are 'std::string [100] {aka std::basic_string<char> [100]}' and 'std::string {aka std::basic_string<char>}')
         if ((s[i] >= '0') && (s[i] <= '9')) 

               ^
b16.cpp:8:32: error: no match for 'operator[]' (operand types are 'std::string [100] {aka std::basic_string<char> [100]}' and 'std::string {aka std::basic_string<char>}')
         if ((s[i] >= '0') && (s[i] <= '9')) 

                                ^
b16.cpp:9:20: error: no match for 'operator[]' (operand types are 'std::string [100] {aka std::basic_string<char> [100]}' and 'std::string {aka std::basic_string<char>}')
             val = s[i] - '0';

                    ^
b16.cpp:10:15: error: no match for 'operator[]' (operand types are 'std::string [100] {aka std::basic_string<char> [100]}' and 'std::string {aka std::basic_string<char>}')
         if ((s[i] >= 'A') && (s[i] <= 'F'))

               ^
b16.cpp:10:32: error: no match for 'operator[]' (operand types are 'std::string [100] {aka std::basic_string<char> [100]}' and 'std::string {aka std::basic_string<char>}')
         if ((s[i] >= 'A') && (s[i] <= 'F'))

                                ^
b16.cpp:11:25: error: no match for 'operator[]' (operand types are 'std::string [100] {aka std::basic_string<char> [100]}' and 'std::string {aka std::basic_string<char>}')
             val = 10 + s[i]-'A';

                         ^

Cum funcționează evaluarea?