Rezumat problemă

Subarbore2

#647

Se dă vectorul de tați al unui arbore cu rădăcină cu n noduri și un nod k. Fiecare nod al arborelui are asociată o valoare numerică întreagă. Determinați suma valorilor asociate nodurilor din subarborele cu rădăcina în k.

Fișiere Candale Silviu (silviu) medie

Clasa 11 Teoria Grafurilor Arbori cu rădăcină

Rezolvă

Detalii

Problema	Subarbore2	Operații I/O	subarbore2.in/subarbore2.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64876334	Utilizator	PRODAN Andrei (prodan1)
Fișier	subarbore2.cpp	Dimensiune	491 B
Data încărcării	09 Iunie 2026, 08:17	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

subarbore2.cpp:2:7: error: expected nested-name-specifier before ‘namaespace’
    2 | using namaespace std;
      |       ^~~~~~~~~~
subarbore2.cpp: In function ‘void dfs(int)’:
subarbore2.cpp:7:13: error: ‘val’ was not declared in this scope
    7 |     suma += val[k];
      |             ^~~
subarbore2.cpp:8:25: error: ‘n’ was not declared in this scope
    8 |     for(int i = 1; i <= n; i++)
      |                         ^
subarbore2.cpp:9:12: error: ‘T’ was not declared in this scope
    9 |         if(T[i] == k)
      |            ^
subarbore2.cpp: In function ‘int main()’:
subarbore2.cpp:14:5: error: ‘ifstream’ was not declared in this scope; did you mean ‘std::ifstream’?
   14 |     ifstream f("subarbore2.in");
      |     ^~~~~~~~
      |     std::ifstream
In file included from /usr/include/c++/13/ios:40,
                 from /usr/include/c++/13/istream:40,
                 from /usr/include/c++/13/fstream:40,
                 from subarbore2.cpp:1:
/usr/include/c++/13/iosfwd:164:41: note: ‘std::ifstream’ declared here
  164 |   typedef basic_ifstream<char>          ifstream;
      |                                         ^~~~~~~~
subarbore2.cpp:15:5: error: ‘f’ was not declared in this scope
   15 |     f >> n >> k;
      |     ^
subarbore2.cpp:15:10: error: ‘n’ was not declared in this scope
   15 |     f >> n >> k;
      |          ^
subarbore2.cpp:15:15: error: ‘k’ was not declared in this scope
   15 |     f >> n >> k;
      |               ^
subarbore2.cpp:18:14: error: ‘T’ was not declared in this scope
   18 |         f >> T[i];
      |              ^
subarbore2.cpp:20:14: error: ‘val’ was not declared in this scope
   20 |         f >> val[i];
      |              ^~~
subarbore2.cpp:26:5: error: ‘ofstream’ was not declared in this scope; did you mean ‘std::ofstream’?
   26 |     ofstream g("subarbore2.out");
      |     ^~~~~~~~
      |     std::ofstream
/usr/include/c++/13/iosfwd:167:41: note: ‘std::ofstream’ declared here
  167 |   typedef basic_ofstream<char>          ofstream;
      |                                         ^~~~~~~~
subarbore2.cpp:27:5: error: ‘g’ was not declared in this scope
   27 |     g << suma;
      |     ^

Cum funcționează evaluarea?