Eroare de compilare: main.cpp:3:1: error: 'ifstream' does not name a type ifstream cin("aria.in"); ^~~~~~~~ main.cpp:4:1: error: 'ofstream' does not name a type ofstream cout("aria.out"); ^~~~~~~~ main.cpp: In function 'int main()': main.cpp:18:5: error: 'cin' was not declared in this scope cin >> n; ^~~ main.cpp:31:5: error: 'cout' was not declared in this scope cout << a; ^~~~ Non zero exit status: 1