Eroare de compilare: user.cpp:4:19: error: conio.h: No such file or directory user.cpp:5:22: error: iostream.h: No such file or directory user.cpp:6:20: error: fstream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:12: error: ‘ifstream’ was not declared in this scope user.cpp:12: error: expected ‘;’ before ‘f’ user.cpp:13: error: ‘ofstream’ was not declared in this scope user.cpp:13: error: expected ‘;’ before ‘g’ user.cpp:15: error: ‘f’ was not declared in this scope user.cpp:17: error: ‘abs’ was not declared in this scope user.cpp:54: error: ‘g’ was not declared in this scope user.cpp:56: error: ‘g’ was not declared in this scope user.cpp:57: error: ‘g’ was not declared in this scope user.cpp:58: error: ‘g’ was not declared in this scope user.cpp:59: error: ‘g’ was not declared in this scope user.cpp:61: error: ‘g’ was not declared in this scope