Eroare de compilare: main.cpp: In function 'int main()': main.cpp:8:17: error: variable 'std::ifstream fin' has initializer but incomplete type ifstream fin("adunare.in"); ^ main.cpp:9:18: error: variable 'std::ofstream fout' has initializer but incomplete type ofstream fout("adunare.out"); ^ main.cpp:10:9: error: redeclaration of 'int a' int a, b; ^ main.cpp:7:9: note: 'int a' previously declared here int a, b; ^ main.cpp:10:12: error: redeclaration of 'int b' int a, b; ^ main.cpp:7:12: note: 'int b' previously declared here int a, b; ^ Non zero exit status: 1