Eroare de compilare: user.cpp:7: error: ‘ifstream’ does not name a type user.cpp:8: error: ‘ofstream’ does not name a type user.cpp: In function ‘int main()’: user.cpp:36: error: ‘fout’ was not declared in this scope user.cpp:37: error: ‘fout’ was not declared in this scope user.cpp: In function ‘void dfs(int)’: user.cpp:57: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void citire()’: user.cpp:73: error: ‘fin’ was not declared in this scope user.cpp: In function ‘int ciclu(int, nod*&, nod*&)’: user.cpp:108: warning: comparison between signed and unsigned integer expressions user.cpp:117: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void afisare_ciclu()’: user.cpp:132: error: ‘fout’ was not declared in this scope user.cpp:133: error: ‘fout’ was not declared in this scope