Rezumat problemă

Fibonacci

#255

Se dă un număr natural n. Să se afişeze în ordine crescătoare, primii n termeni ai şirului lui Fibonacci.

Consola Candale Silviu (silviu) ușoară

Clasa 9 Algoritmi elementari Generarea unor șiruri Fibonacci

Rezolvă

Detalii

Problema	Fibonacci	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64764939	Utilizator	dita andrei valeriu (Buldozerul89)
Fișier	fibonacci.cpp	Dimensiune	573 B
Data încărcării	28 Mai 2026, 16:00	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

fibonacci.cpp: In function ‘int main()’:
fibonacci.cpp:6:5: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
    6 |     cin>>n;
      |     ^~~
      |     std::cin
In file included from fibonacci.cpp:1:
/usr/include/c++/13/iostream:62:18: note: ‘std::cin’ declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
fibonacci.cpp:7:9: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
    7 |     if(n=1)
      |        ~^~
fibonacci.cpp:9:9: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
    9 |         cout<<0;
      |         ^~~~
      |         std::cout
/usr/include/c++/13/iostream:63:18: note: ‘std::cout’ declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
fibonacci.cpp:13:17: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   13 |             if(n=2)
      |                ~^~
fibonacci.cpp:15:13: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
   15 |             cout<<0<<1;
      |             ^~~~
      |             std::cout
/usr/include/c++/13/iostream:63:18: note: ‘std::cout’ declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
fibonacci.cpp:23:13: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
   23 |             cout<<f1<<f2;
      |             ^~~~
      |             std::cout
/usr/include/c++/13/iostream:63:18: note: ‘std::cout’ declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
fibonacci.cpp:26:23: error: expected ‘;’ before ‘)’ token
   26 |            for(i=3;i<n)
      |                       ^
      |                       ;
fibonacci.cpp:28:8: error: ‘fn’ was not declared in this scope; did you mean ‘f3’?
   28 |        fn=fn-1+fn-2;
      |        ^~
      |        f3
fibonacci.cpp:31:12: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
   31 |            cout<<fn-1;
      |            ^~~~
      |            std::cout
/usr/include/c++/13/iostream:63:18: note: ‘std::cout’ declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
fibonacci.cpp:5:19: warning: unused variable ‘f3’ [-Wunused-variable]
    5 |     int n,i,f1,f2,f3;
      |                   ^~

Cum funcționează evaluarea?