Eroare de compilare: user.cpp:4:1: error: ‘ifstream’ does not name a type ifstream in("fact.in"); ^ user.cpp:5:1: error: ‘ofstream’ does not name a type ofstream out("fact.out"); ^ user.cpp: In function ‘int main()’: user.cpp:10:2: error: ‘in’ was not declared in this scope in>>p; ^ user.cpp:23:17: error: ‘out’ was not declared in this scope if(fives != p) out<<-1; ^ user.cpp:24:7: error: ‘out’ was not declared in this scope else out<<ok; ^ user.cpp:26:2: error: ‘out’ was not declared in this scope out.close(); ^ user.cpp:9:15: warning: unused variable ‘twos’ [-Wunused-variable] int p,ok=0,n,twos=0,fives=0,pp; ^