Rezumat problemă

Preordine

#670

Se dă un arbore binar care conține valori numere naturale. Să se afișeze valorile din arbore în urma parcurgerii în preordine.

Notă: pentru reprezentarea arborelui se recomandă alocarea statică, folosind tablouri.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Structuri de date arborescente Arbori binari

Rezolvă

Detalii

Problema	Preordine	Operații I/O	preordine.in/preordine.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#63918977	Utilizator	Pienescu Iustin (PienescuIustin24)
Fișier	preordine.cpp	Dimensiune	793 B
Data încărcării	26 Martie 2026, 14:16	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

preordine.cpp:3:10: error: expected unqualified-id before string constant
 ifstream("preordine.in");

          ^
preordine.cpp:3:10: error: expected ')' before string constant
preordine.cpp:4:10: error: expected unqualified-id before string constant
 ofstream("preordine.out");

          ^
preordine.cpp:4:10: error: expected ')' before string constant
preordine.cpp: In function 'void radacina(int)':
preordine.cpp:12:14: error: 'i' was not declared in this scope
         f[dr[i]]++;

              ^
preordine.cpp:14:12: error: 'v' was not declared in this scope
         if(v[i]==0)

            ^
preordine.cpp:15:20: error: return-statement with a value, in function returning 'void' [-fpermissive]
             return i;

                    ^
preordine.cpp: In function 'void SRD(int)':
preordine.cpp:21:5: error: 'cout' was not declared in this scope
     cout<<v[r]<<" ";

     ^
preordine.cpp:21:11: error: 'v' was not declared in this scope
     cout<<v[r]<<" ";

           ^
preordine.cpp: In function 'void RSD(int)':
preordine.cpp:26:5: error: 'cout' was not declared in this scope
     cout<<v[r]<<" ";

     ^
preordine.cpp:26:11: error: 'v' was not declared in this scope
     cout<<v[r]<<" ";

           ^
preordine.cpp: In function 'void SDR(int)':
preordine.cpp:34:5: error: 'cout' was not declared in this scope
     cout<<v[r]<<" ";

     ^
preordine.cpp:34:11: error: 'v' was not declared in this scope
     cout<<v[r]<<" ";

           ^
preordine.cpp: In function 'int main()':
preordine.cpp:38:5: error: 'cin' was not declared in this scope
     cin>>n;

     ^
preordine.cpp:41:20: error: too few arguments to function 'void radacina(int)'
     int r=radacina();

                    ^
preordine.cpp:7:6: note: declared here
 void radacina(int r)

      ^
preordine.cpp:42:9: error: expected primary-expression before 'int'
     RSD(int r);

         ^
preordine.cpp:41:9: warning: unused variable 'r' [-Wunused-variable]
     int r=radacina();

         ^

Cum funcționează evaluarea?