copaci.cpp: In function 'void Citire()': copaci.cpp:25: error: 'ifstream' was not declared in this scope copaci.cpp:25: error: expected ';' before 'fin' copaci.cpp:26: error: 'fin' was not declared in this scope copaci.cpp: In function 'void Afisare()': copaci.cpp:33: error: 'ofstream' was not declared in this scope copaci.cpp:33: error: expected ';' before 'fout' copaci.cpp:34: error: 'fout' was not declared in this scope copaci.cpp:34: error: 'setprecision' was not declared in this scope copaci.cpp:34: error: 'endl' was not declared in this scope