Eroare de compilare: main.cpp:3:1: error: 'ifstream' does not name a type ifstream f("numar4.in"); ^~~~~~~~ main.cpp:4:1: error: 'ofstream' does not name a type ofstream g("numar4.out"); ^~~~~~~~ main.cpp: In function 'int main()': main.cpp:9:5: error: 'f' was not declared in this scope f>>ni>>nz; ^ main.cpp:34:5: error: 'g' was not declared in this scope g<<n1; ^ Non zero exit status: 1