Eroare de compilare: main.cpp: In function 'int main()': main.cpp:7:16: error: variable 'std::ifstream in' has initializer but incomplete type 7 | ifstream in("adunare.in") | ^ main.cpp:8:5: error: expected ',' or ';' before 'ifstream' 8 | ifstream out("adunare.out") | ^~~~~~~~ main.cpp:11:11: error: 'a' was not declared in this scope 11 | in >> a; | ^ main.cpp:12:5: error: 'out' was not declared in this scope 12 | out >> b; | ^~~ Non zero exit status: 1