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	#64498626	Utilizator	cucuian Bogdan (CucuianBogdan)
Fișier	preordine.cpp	Dimensiune	523 B
Data încărcării	11 Mai 2026, 12:39	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

preordine.cpp:3:1: error: ‘usingnamespace’ does not name a type
    3 | usingnamespace std;
      | ^~~~~~~~~~~~~~
preordine.cpp:4:1: error: ‘ifstream’ does not name a type
    4 | ifstream fin("preordine.in");
      | ^~~~~~~~
preordine.cpp:5:1: error: ‘ofstream’ does not name a type
    5 | ofstream fout("preordine.out)");
      | ^~~~~~~~
preordine.cpp: In function ‘void preordine(int)’:
preordine.cpp:11:5: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
   11 |     cout<<k<<" ";
      |     ^~~~
      |     std::cout
In file included from preordine.cpp:1:
/usr/include/c++/13/iostream:63:18: note: ‘std::cout’ declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
preordine.cpp:12:15: error: invalid conversion from ‘int*’ to ‘int’ [-fpermissive]
   12 |     preordine(st);
      |               ^~
      |               |
      |               int*
preordine.cpp:7:20: note:   initializing argument 1 of ‘void preordine(int)’
    7 | void preordine(int k)
      |                ~~~~^
preordine.cpp:13:15: error: invalid conversion from ‘int*’ to ‘int’ [-fpermissive]
   13 |     preordine(dr);
      |               ^~
      |               |
      |               int*
preordine.cpp:7:20: note:   initializing argument 1 of ‘void preordine(int)’
    7 | void preordine(int k)
      |                ~~~~^
preordine.cpp: In function ‘int main()’:
preordine.cpp:17:9: error: ‘fin’ was not declared in this scope
   17 |         fin>>n;
      |         ^~~
preordine.cpp:21:30: error: expected ‘]’ before ‘;’ token
   21 |                     v[st[i]++;
      |                              ^
      |                              ]
preordine.cpp:27:20: error: ‘cop’ was not declared in this scope
   27 |                    cop=v[i];
      |                    ^~~
preordine.cpp:30:12: error: ‘cop’ was not declared in this scope
   30 |  preordine(cop);
      |            ^~~

Cum funcționează evaluarea?