Eroare de compilare: user.cpp:2: error: ‘ifstream’ does not name a type user.cpp:3: error: ‘ofstream’ does not name a type user.cpp: In function ‘void citire()’: user.cpp:9: error: ‘f1’ was not declared in this scope user.cpp: In function ‘void dijkstra()’: user.cpp:67: error: ‘f2’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:78: error: ‘f2’ was not declared in this scope