Eroare de compilare: user.cpp:9:1: error: ‘ifstream’ does not name a type ifstream f("strmatch.in"); ^~~~~~~~ user.cpp:10:1: error: ‘ofstream’ does not name a type ofstream g("strmatch.out"); ^~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:30:5: error: ‘f’ was not declared in this scope f>>A; ^ user.cpp:53:5: error: ‘g’ was not declared in this scope g<<n<<'\n'; ^