Eroare de compilare: user.cpp:2:1: error: ‘usnig’ does not name a type usnig namespace std; ^ user.cpp:3:1: error: ‘ifstream’ does not name a type ifstream f("numar2.in"); ^ user.cpp:4:1: error: ‘ofstream’ does not name a type ofstream g("numar2.out"); ^ user.cpp: In function ‘int main()’: user.cpp:11:3: error: ‘f’ was not declared in this scope f>>n>>m; ^ user.cpp:24:3: error: ‘g’ was not declared in this scope g<<i-1<<"\n"; ^