Eroare de compilare: user.cpp:3:13: error: variable ‘std::ifstream fin’ has initializer but incomplete type ifstream fin("submultimi.in"); ^ user.cpp:4:14: error: variable ‘std::ofstream fout’ has initializer but incomplete type ofstream fout("submultimi.out"); ^ user.cpp: In function ‘int init()’: user.cpp:9:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^