Rezumat problemă

ProdusCartezian2

#1278

Se dau n mulțimi. Să se genereze în ordine lexicografică elementele produsului cartezian al mulțimilor date.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Backtracking Elemente de combinatorică

Rezolvă

Detalii

Problema	ProdusCartezian2	Operații I/O	produscartezian2.in/produscartezian2.out
Limita timp	0.7 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#57866007	Utilizator	Maxim Stefania (Maxim_Stefania)
Fișier	produscartezian2.cpp	Dimensiune	496 B
Data încărcării	28 Aprilie 2025, 11:38	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

produscartezian2.cpp:4:13: error: variable 'std::ifstream cin' has initializer but incomplete type
 ifstream cin("produscartezian2.in")

             ^
produscartezian2.cpp:5:1: error: expected ',' or ';' before 'ofstream'
 ofstream cout("produscartezian2.out")

 ^
produscartezian2.cpp: In function 'void afisare(int)':
produscartezian2.cpp:9:9: error: 'i' was not declared in this scope
     for(i=1;i<=n;i++)

         ^
produscartezian2.cpp:9:16: error: 'n' was not declared in this scope
     for(i=1;i<=n;i++)

                ^
produscartezian2.cpp:10:15: error: 's' was not declared in this scope
         cout<<s[i]<<" ";

               ^
produscartezian2.cpp: In function 'void back(int)':
produscartezian2.cpp:15:11: error: 'n' was not declared in this scope
     if(k==n+1)

           ^
produscartezian2.cpp:16:17: error: too few arguments to function 'void afisare(int)'
         afisare();

                 ^
produscartezian2.cpp:7:6: note: declared here
 void afisare(int k)

      ^
produscartezian2.cpp:18:13: error: 'i' was not declared in this scope
         for(i=1;i<=v[k];i++)

             ^
produscartezian2.cpp:18:20: error: 'v' was not declared in this scope
         for(i=1;i<=v[k];i++)

                    ^
produscartezian2.cpp:20:9: error: 's' was not declared in this scope
         s[k]=i;

         ^
produscartezian2.cpp: In function 'int main()':
produscartezian2.cpp:27:4: error: reference to 'cin' is ambiguous
    cin>>n;

    ^
produscartezian2.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("produscartezian2.in")

          ^
In file included from produscartezian2.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
produscartezian2.cpp:27:9: error: 'n' was not declared in this scope
    cin>>n;

         ^
produscartezian2.cpp:29:5: error: reference to 'cin' is ambiguous
     cin>>v[i];

     ^
produscartezian2.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("produscartezian2.in")

          ^
In file included from produscartezian2.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
produscartezian2.cpp:29:10: error: 'v' was not declared in this scope
     cin>>v[i];

          ^

Cum funcționează evaluarea?