Rezumat problemă

suma_prefixe

#3077

Scrieți un program care citește un număr natural nenul n și care calculează suma tuturor numerelor distincte prefixe pentru n.

Consola Minca Carmen (carmen) Carmen Minca ușoară

Clasa 9 Algoritmi elementari Cifrele unui număr

Rezolvă

Detalii

Problema	suma_prefixe	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#62162421	Utilizator	Rares Titu (Tituuu)
Fișier	suma_prefixe.cpp	Dimensiune	1.07 KB
Data încărcării	12 Ianuarie 2026, 11:20	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

suma_prefixe.cpp: In function 'int main()':
suma_prefixe.cpp:8:9: error: expected primary-expression before '{' token
     std {Link: cout} << "Introduceti numarul n: ";

         ^
suma_prefixe.cpp:8:9: error: expected ';' before '{' token
suma_prefixe.cpp:8:22: error: expected primary-expression before '<<' token
     std {Link: cout} << "Introduceti numarul n: ";

                      ^
suma_prefixe.cpp:9:12: error: 'cin' was not declared in this scope
     {Link: cin} >> n;

            ^
suma_prefixe.cpp:9:12: note: suggested alternative:
In file included from suma_prefixe.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
suma_prefixe.cpp:9:15: error: expected ';' before '}' token
     {Link: cin} >> n;

               ^
suma_prefixe.cpp:9:17: error: expected primary-expression before '>>' token
     {Link: cin} >> n;

                 ^
suma_prefixe.cpp:16:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s_n.length(); ++i) {

                                    ^
suma_prefixe.cpp:26:6: error: duplicate label 'Link'
     {Link: cout} << "Suma S a prefixelor distincte este: " << suma << std::endl;

      ^
suma_prefixe.cpp:26:12: error: 'cout' was not declared in this scope
     {Link: cout} << "Suma S a prefixelor distincte este: " << suma << std::endl;

            ^
suma_prefixe.cpp:26:12: note: suggested alternative:
In file included from suma_prefixe.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
suma_prefixe.cpp:26:16: error: expected ';' before '}' token
     {Link: cout} << "Suma S a prefixelor distincte este: " << suma << std::endl;

                ^
suma_prefixe.cpp:26:18: error: expected primary-expression before '<<' token
     {Link: cout} << "Suma S a prefixelor distincte este: " << suma << std::endl;

                  ^
suma_prefixe.cpp:9:6: warning: label 'Link' defined but not used [-Wunused-label]
     {Link: cin} >> n;

      ^

Cum funcționează evaluarea?